CN104807839A - System for detecting water content of plastic, and method thereof - Google Patents
System for detecting water content of plastic, and method thereof Download PDFInfo
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- CN104807839A CN104807839A CN201410041247.8A CN201410041247A CN104807839A CN 104807839 A CN104807839 A CN 104807839A CN 201410041247 A CN201410041247 A CN 201410041247A CN 104807839 A CN104807839 A CN 104807839A
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- 239000004033 plastic Substances 0.000 title claims abstract description 216
- 229920003023 plastic Polymers 0.000 title claims abstract description 216
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 115
- 230000005855 radiation Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 238000007669 thermal treatment Methods 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000002000 scavenging effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a method for detecting the water content of a plastic. The method comprises the following steps: a plastic material with known water content is radiated with electromagnetic waves with the bandwidth of 50-1000GHz emitted by oscillation equipment 11, and a receiver receives and measures the remaining electromagnetic waves not absorbed by the plastic in order to obtain a first measured value in advance; a plastic material with unknown water content is radiated with electromagnetic waves with the bandwidth of 50-1000GHz emitted by oscillation equipment 11, the receiver receives and measures the remaining electromagnetic waves not absorbed by the plastic in order to obtain a second measured value; and the first measured value is compared with the second measured value, and the water content of the plastic with unknown water content is calculated based on the above comparison result. The water content of the plastic can be accurately and rapidly measured through the method.
Description
Technical field
The invention belongs to plastics detection technique field, specifically a kind of system detecting plastics water cut and the method detecting plastics water cut thereof.
Background technology
Generally speaking, the high-hygroscopicity plastic material for plastic shaping being processed, to avoid the ingress of air when carrying out shaping as far as possible, and contained moisture will be removed in the pre-feeding stage by heat-treating them.This is because, when shaping product is that when using the plastic material absorbed water shaping, owing to there being the evaporation of water behavior along with heating, the outside surface of product becomes coarse or becomes porose.On the other hand, in some cases, from product quality aspect, plastics must contain a certain amount of moisture.That is, from material phase to the product stage, importantly control plastics a favourable water status.
The classic method measuring water cut in plastics is Oven Method, need the sample first gathering and processing tested plastics, re-use baking oven, balance, sampling box measure, measuring a sample and need 10 ~ 180 minutes, waste time and energy, also will could obtain result by calculating, common people are difficult to grasp this method of utilization without training, and equipment manufacturing cost is high, take certain place, also because the limitation of sampling has larger measuring error sometimes.Another kind of conventional measuring method uses condenser type material device for testing water content device, and also need the sample first gathering and processing tested plastics, then sample is placed in the capacitance-type sensor for moisture content of this instrument, because of moisture difference, electric capacity changes, desirable value; Although this method is quick compared with Oven Method, volume is also little, cost is also low, because of the limitation of sampling, measuring accuracy is restricted equally.Also have a kind of method, use karl Fischer (Karl Fischer) method to measure the water yield in plastics exactly, compared with drying loss method, Karl-Fischer method exclusively can detect moisture, and the method therefore as the measurement water yield is more accurate.But Karl-Fischer method is a kind of by using the classical way of the water of coulomb quantitatively or in volume titrimetry sample of iodine, sulphuric dioxide, alcohol etc., although its measured value precision is high, but consuming time, trouble is not a kind of method that can realize measuring in real time.
Summary of the invention
The object of the invention is to overcome the deficiency of plastics water cut detection method and device systems in prior art, provide a kind of and make it possible to accurately and measure rapidly the water scavenging system of the water cut in plastics and it quick and precisely detects the method for plastics water cut.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of detection plastic material water cut system, this system comprises as lower unit: receiving element, thermal treatment unit, supply unit, measuring unit.
And, a kind of method detecting plastic material water cut systems axiol-ogy plastic material water cut, comprise the steps: that above-mentioned receiving element receives the plastic material of fixed amount, above-mentioned thermal treatment unit is heat-treated above-mentioned plastic material and is obtained plastic material two, and the measuring unit that plastic material two is delivered to downstream position puts by supply unit;
Wherein, the plastic material two of electromagnetic wave to known moisture content of 50GHz to the 1000GHz bandwidth sent by oscillator device carries out radiation, and receiver receives and measures not by the residual electricity magnetic wave that this plastic material two absorbs, and obtains the first measured value;
The electromagenetic wave radiation of 50GHz to the 1000GHz bandwidth sent by described oscillator device, to the plastic material two of unknown water cut, is measured not by the residual electricity magnetic wave that this tested plastic material two absorbs, is obtained the second measured value;
More above-mentioned first measured value and the second measured value, calculate the water status of the plastic material of described unknown water status.
Detection method of the present invention accurately, promptly can measure the moisture in plastics.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of detection plastic material water cut system, described system comprises as lower unit: receiving element, thermal treatment unit, supply unit, measuring unit.
In addition, the embodiment of the present invention additionally provides a kind of method detecting plastic material water cut systems axiol-ogy plastic material water cut, comprise the steps: that described receiving element receives the plastic material of fixed amount, described thermal treatment unit is heat-treated described plastic material and is obtained plastic material two, and the measuring unit that plastic material two is delivered to downstream position puts by supply unit;
Wherein, the plastic material two of electromagnetic wave to known moisture content of 50GHz to the 1000GHz bandwidth sent by oscillator device carries out radiation, and receiver receives and measures not by the residual electricity magnetic wave that this plastic material two absorbs, and obtains the first measured value;
The electromagenetic wave radiation of 50GHz to the 1000GHz bandwidth sent by described oscillator device, to the plastic material two of unknown water cut, is measured not by the residual electricity magnetic wave that this tested plastic material two absorbs, is obtained the second measured value;
More described first measured value and the second measured value, calculate the water status of the plastic material of described unknown water status.
Design according to a first aspect of the present invention, with the plastics of the electromagenetic wave radiation known aqueous situation of 50GHz to the 1000GHz bandwidth of oscillator device, measure remaining not by electromagnetic wave that described plastics absorb, obtain the first measured value in advance, with electromagenetic wave radiation the unknown described plastics of water status of 50GHz to the 1000GHz bandwidth of described oscillator device or the plastics of the different from described plastics of unknown water status, measure remaining not by electromagnetic wave that tested plastics absorb, obtain the second measured value, relatively the first measured value and the second measured value, calculate the water status of the plastics of unknown water status.
Equally, design according to a second aspect of the present invention, with the similar plastics of the electromagnetic wave of 50GHz to the 1000GHz bandwidth of the oscillation device similar plastics of radiation known aqueous situation and at least two kinds of dissimilar water status respectively, measure remaining not by electromagnetic wave that plastics absorb, obtain multiple first measured value in advance, function is drawn by the relation between obtained multiple first measured value and multiple water status, with electromagenetic wave radiation the unknown described plastics of water status of 50GHz to the 1000GHz bandwidth of oscillation device or the plastics of the different from described plastics of unknown water status, measure remaining not by the electromagnetic wave of described tested plastics absorption, obtain the second measured value, this second measured value is used in described function, calculate the water status corresponding with the plastics of unknown water status.
Equally, design according to a third aspect of the present invention, except the layout of first aspect present invention or second aspect, the electromagnetic wave produced by making described oscillator device transmits through described plastics, by the receiving equipment reception be arranged on rear side of described plastics, measure the described first or second measured value.
Equally, design according to a fourth aspect of the present invention, except the layout of first aspect present invention or second aspect, the electromagnetic wave produced by making described oscillator device reflects and reflection wave is received by a receiving equipment inside plastics, measures the described first or second measured value.
Equally, design according to a fifth aspect of the present invention, except the layout of first aspect present invention or second aspect, the electromagnetic wave produced by making described oscillator device in described plastics inscattering, scattering wave is received by a receiving equipment, measure the described first or second measured value.
For the layout of described first aspect, the plastics of the electromagenetic wave radiation known aqueous situation of 50GHz to the 1000GHz bandwidth first sent by oscillator device, by measuring not by the remaining electromagnetic wave that described plastics absorb, can obtain first measured value corresponding with the water status of described plastics.Above-mentioned scope has the wavelength bandwidth belonging to THz wave and millimeter wave.Described water status can represent by digital value under normal circumstances, such as water percentage, water cut etc.Obtain described first measured value in advance as reference value.Such as, by with the Karl-Fischer method that can quantize the water in plastics, the understanding to water status is realized.Such as, suppose there is a retable material, the substantially the same but water status of the unknown of described plastics.Measuring the amount of water by sampling to a part for described plastics, with Karl-Fischer method, the water status of that retable material can be determined.Then by electromagnetic wave being shone on described plastics (benchmark plastics), making water status become known thus, measuring remaining electromagnetic wave, obtain the relation between the water yield and remaining electromagnetic wave (the first measured value).
Afterwards, the electromagenetic wave radiation of the above-mentioned bandwidth sent by described oscillator device but the plastics of unknown water status or plastics with described benchmark plastics different materials identical with described benchmark plastic material, measure remaining not by the electromagnetic wave that described plastics absorb, same acquisition the second measured value.Then more described second measured value and the first measured value.That is, use described first measured value as benchmark based on described second measured value, estimate the water status of the plastics of unknown water status.Usually difference is obtained when changing into data.
Here, if with first measured value the same terms under measure the second measured value, and it equals described first measured value, and so described tested plastics are under same water status with described benchmark plastics.Further, if described value is identical in error range, although so depend on purposes, can by with tested Plastic described in described benchmark plastics like mode process.Even if the composition of described plastics is different, by provide make the first measured value can the factor, also likely measure.In addition, can carry out the examination and test of products, because can learn from described measured value, described water percentage is lower than described benchmark plastics, or on the contrary, described water percentage is higher than described benchmark plastics.
For the layout of second aspect, first, each in the benchmark plastics that the electromagenetic wave radiation at least two kinds of 50GHz to the 1000GHz bandwidth sent by oscillator device is dissimilar, remaining not by electromagnetic wave that described plastics absorb by measuring, multiple first measured values corresponding with described water status can be obtained, obtain a function from the relation between described multiple first measured value and multiple water status.Such as can consider above-described Karl-Fischer method, as a kind of means obtaining described multiple first measured value.
After this, tested plastics described in the electromagenetic wave radiation of the same bandwidth sent by described oscillator device, measure remaining not by the electromagnetic wave that described plastics absorb, same acquisition the second measured value.Then this second measured value is substituted into described function, calculate the water status corresponding with described tested plastics.Therefore likely based on the described position of the second measured value on described function, judge the water status of tested plastics, or any point on described function can be used as reference value, based on the relation of described second measured value and described reference point, described water status can be judged.
Such as, suppose to obtain function of first order based on described multiple first measured value, be expressed as f (x)=ax+b.By being substituted in x by described second measured value, the water status f (x) of the plastics of described unknown water status can be determined.In addition, by judging a reference value of described second measured value non-first measured value upper relative to f (x), being large or little, the inspection of product can be carried out, because can know that described water percentage is lower than described reference value, or contrary described water percentage is higher than described reference value.
Of the present invention first or second aspect, can consider a method, the electromagnetic transmission of 50GHz to the 1000GHz bandwidth that the layout made makes described oscillator device produce is through described plastics, by being arranged on the receiving trap reception at described plastics rear to measure remaining electromagnetic wave.Described oscillator device and described receiving equipment can be placed on front and rear respectively in this way, suppose the words of all having living space in every side.Equally, the electromagnetic wave of 50GHz to the 1000GHz bandwidth that described oscillator device can be made to produce reflects inside described plastics, reflection wave can be received by described receiving equipment, or electromagnetic wave scattering in described plastics that described oscillator device can be made to produce, the ripple after scattering can be received by described receiving equipment.Such layout is especially favourable when having living space restriction.
Can as required, freely locate the catoptron that the lens assembled along a paths by electromagnetic wave or location are used for changing described path.
Equally, be that the plastics of measuring object of the present invention conceptually comprise thermoplastics and thermosetting plastics and elastic body.
Equally, according to a sixth aspect of the invention, a kind of water scavenging system of plastic material is set, once receive the plastic material supply of fixed amount, heat-treat to remove the water in described plastic material to the described plastic material in container handling, according to processing unit, described plastic material is carried toward downstream, the plastic material of known aqueous situation is received within and is arranged in the Measurement channel of described container handling downstream position, the electromagnetic wave of 50GHz to the 1000GHz bandwidth sent by oscillator device carries out radiation, measure not by remaining electromagnetic wave that described plastic material absorbs, obtain the first measured value in advance, the described plastics of unknown water status or the plastics different from the described plastics of unknown water status in the electromagenetic wave radiation Measurement channel of 50GHz to the 1000GHz bandwidth sent by described oscillator device, measure remaining not by the electromagnetic wave of described tested plastic material absorption, to obtain the second measured value, more described first measured value and the second measured value, calculate the water status of the plastic material of described unknown water status.
Equally, according to a seventh aspect of the invention, the water scavenging system of a plastic material is set, once receive the plastic material of the fixed amount of supply, heat-treat to remove the water in described plastic material to the described plastic material in container handling, and according to processing unit, described plastic material is carried toward downstream, make in the Measurement channel placed at the downstream position of container handling, the similar plastics of the water status that the similar plastics of the electromagnetic wave of 50GHz to the 1000GHz bandwidth sent by oscillator device radiation known aqueous situation are respectively different with at least two kinds, measure remaining not by electromagnetic wave that described plastics absorb, obtain multiple first measured value in advance, a function is obtained from the relation of obtained multiple first measured value and described multiple water status, in Measurement channel, the plastics of unknown water status described in the electromagenetic wave radiation of 50GHz to the 1000GHz bandwidth sent by oscillator device or the plastics different from the described plastics of unknown water status, measure the remaining electromagnetic wave do not absorbed by described tested plastic material to obtain the second measured value, this second measured value is used in described function, calculate the water status corresponding with the plastics of described unknown water status.
Equally, design according to an eighth aspect of the invention, except the layout of sixth aspect present invention, control, make when based on the multilevel iudge of described first measured value and described second measured value is gone out obtained water status do not meet predetermined water status not higher than tested plastic material time, do not carry out the conveying toward downstream.
Equally, design according to a ninth aspect of the present invention, except the layout of sixth aspect present invention, control, make when based on the multilevel iudge of described first measured value and described second measured value is gone out obtained water status do not meet predetermined water status not higher than described tested plastic material time, described plastic material is transmitted back to the upstream side of container handling.
Equally, design according to a tenth aspect of the present invention, except the layout of the present invention the 6th, the 8th and the 9th aspect either side, comprise notifying device, when based on the multilevel iudge of described first measured value and described second measured value is gone out obtained water status do not meet predetermined water status not higher than described tested plastic material time, this situation is informed to outside by described notifying device.
In addition, according to the design of the present invention the 11 aspect, except the layout of seventh aspect present invention, control, during the predetermined water status that the water status corresponding when described second measured value judged be applicable to described function is not met not higher than tested plastic material, do not carry out the conveying toward downstream.
Equally, according to the design of the present invention the 12 aspect, except the layout of seventh aspect present invention, control, during the predetermined water status that the water status corresponding when described second measured value judged be applicable to described function is not met not higher than tested plastic material, described plastic material is transmitted back to the upstream side of container handling.
Equally, according to the design of the present invention the 13 aspect, except any one layout in the present invention the 7th, the 11 and the 12 aspect, comprise a notifying device, during the predetermined water status that the water status corresponding when described second measured value judged be applicable to described function is not met not higher than tested plastic material, this is informed to outside by described notifying device.
Equally, design according to a fourteenth aspect of the invention, any except in the present invention the 6th to the 13 aspect
Outside layout on the one hand, the tested plastic material in described container handling is heat-treated along with vacuum draw process.
When there being layout in the described 6th, first in Measurement channel, the plastic material of the electromagenetic wave radiation known aqueous situation of 50GHz to the 1000GHz bandwidth sent by oscillator device, remaining not by the electromagnetic wave that described plastics absorb by measuring, first measured value corresponding with the water status of described plastics can be obtained.Such as can consider that above-described Karl-Fischer method is as the means obtaining described first measured value.
After this, but with the plastics of unknown water status identical from the material of described benchmark plastics with the electromagenetic wave radiation of the same band that described oscillator device sends or the plastic material different with described benchmark plastic material in described Measurement channel, measure remaining not by the electromagnetic wave that described plastics absorb, described second measured value of same acquisition.Then more described first measured value and described second measured value.That is, use described first measured value as benchmark based on described second measured value, estimate the water status of described tested plastic material.Usually, when converting data to, a difference is obtained.
Here, if described second measured value measures under the condition identical with described first measured value, and equal described first measured value, so described tested plastic material is under same water status with described benchmark plastics.In addition, if when in error range, described value is equal, although depend on purposes, can by described tested plastic material
With mode process like described benchmark Plastic.Even if the composition of plastics is different, by providing can use the factor making the first measured value, likely measure.In addition, the inspection of product can be carried out because from described measured value, described water percentage lower than described benchmark plastics or contrary water percentage higher than described benchmark plastics.
Having under the layout scenarios in the 7th, first, in Measurement channel, use each class in electromagenetic wave radiation at least two kinds of inhomogeneity benchmark plastic materials of 50GHz to the 1000GHz bandwidth of oscillator device respectively, remaining not by electromagnetic wave that described plastics absorb by measuring, multiple first measured values corresponding with the water status of described plastics can be obtained, obtain a function from the relation between described multiple first measured value and described multiple water status.As the means obtaining described multiple first measured value, such as, can consider above-described Karl-Fischer method.
After this, in Measurement channel, tested plastics described in the electromagenetic wave radiation of the same band sent by described oscillator device, measure remaining not by the electromagnetic wave that described plastics absorb, same acquisition the second measured value.Then the second measured value is applied in described function, calculates the water status corresponding with described tested plastic material.
Thus, the likely water status of tested plastic material according to the position judgment of described second measured value on described function, or any point on described function can be used as a reference value, based on the relation of described second measured value with this reference value, judge described water status.
Such as, suppose to obtain function of first order f (x)=ax+b based on described multiple first measured value.By described second measured value is substituted into x, the water status f (x) of the described plastic material of unknown water status can be drawn.In addition, by judging that a reference value of described second measured value non-first measured value upper relative to f (x) is large or little, the inspection of product can be carried out, because described water percentage can be known lower than described reference value or contrary described water percentage higher than described reference value.
Therefore, likely measure rapidly and whether send to heat treated tested plastic material in predetermined dry condition in described container handling.
It is also preferred that, control, making, when judging that based on described second measured value the water status of obtained tested plastic material does not meet the predetermined water status height unlike described tested plastic material, not carry toward downstream.Doing like this is the plastics will avoiding using degree of drying inadequate.
Equally, hereinbefore, preferably controlling, making, when judging that based on described second measured value the water status of the tested plastic material obtained does not meet the predetermined water status height unlike tested plastic material, plastic material to be sent back to the upstream side of container handling.This is done to send described material back to drying process.
Equally, hereinbefore, preferably, when judging that based on described second measured value the water status of the tested plastic material obtained does not meet the predetermined water status height unlike described tested plastic material, by described notifying device, this situation is informed to outside.Therefore workman can learn that drying is carried out insufficient immediately.
Equally hereinbefore, the thermal treatment of the tested plastic material in described container handling is along with the process vacuumized in rate of drying and improvement degree of drying preferably.Although hereinbefore, in simplification calculating and digital value degree of accuracy preferably, the measuring condition obtaining described first measured value is identical with the measuring condition obtaining described second measured value, but, if the difference of the described measuring condition functional value of certain form can be used on described second measured value, the measuring condition obtaining described two measured values can be different.
Remaining electromagnetic wave from the electromagenetic wave radiation of 50GHz to 1000GHz bandwidth is used as the parameter of described water status, because the electromagnetic wave of 50GHz to 1000GHz bandwidth (namely, THz wave and millimeter wave) there is the attribute that can be only absorbed by the water, water also can not be caused to seethe with excitement, when even radiation is on plastics, also can not affect the physical attribute of plastics.Uptake is based on the positive correlation with water cut in plastics, that is, and the attribute that wireless wave that is larger based on the water yield in plastics, that absorb is more.Residual electricity magnetic wave after absorption becomes negative correlation with the water cut in described plastics.
For described plastics, as long as described plastics have water absorption character, measurement thermosetting plastic and thermoplastic can.In addition, it doesn't matter for the shape of plastics.Although described material ball shape can be considered, the plastics making finished product of various shape also can be considered.
By with the present invention first to the 5th aspect, the water status of the plastic material of unknown water status can be measured rapidly.
By by the present invention's six to fourteenth aspect, in addition to the above-described effects, the water status of dry plastic material can be measured rapidly and return dry insufficient plastic material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. detect a plastic material water cut system, described system comprises as lower unit: receiving element, thermal treatment unit, supply unit, measuring unit.
2. one kind is detected the method for plastic material water cut systems axiol-ogy plastic material water cut, comprise the steps: that described receiving element receives the plastic material of fixed amount, described thermal treatment unit is heat-treated described plastic material and is obtained plastic material two, and the measuring unit that plastic material two is delivered to downstream position puts by supply unit;
Wherein, the plastic material two of electromagnetic wave to known moisture content of 50GHz to the 1000GHz bandwidth sent by oscillator device carries out radiation, and receiver receives and measures not by the residual electricity magnetic wave that this plastic material two absorbs, and obtains the first measured value;
The electromagenetic wave radiation of 50GHz to the 1000GHz bandwidth sent by described oscillator device, to the plastic material two of unknown water cut, is measured not by the residual electricity magnetic wave that this tested plastic material two absorbs, is obtained the second measured value;
More described first measured value and the second measured value, calculate the water status of the plastic material of described unknown water status.
3. the method for detection plastic material water cut systems axiol-ogy plastic material water cut according to claim 1, comprise the steps: that described receiving element receives the two or more similar plastic material of fixed amount, described thermal treatment unit is heat-treated described two or more similar plastic material and is obtained plastic material two, and the measuring unit that plastic material two is delivered to downstream position puts by supply unit;
Wherein, the similar plastic material two of electromagnetic wave to described two or more known moisture content of 50GHz to the 1000GHz bandwidth sent by oscillator device carries out radiation, receiver receives and measures not by residual electricity magnetic wave that this plastic material two absorbs, plural first measured value of corresponding acquisition, the relation of the known moisture content that more described plural first measured value is corresponding with it obtains function;
The electromagenetic wave radiation of 50GHz to the 1000GHz bandwidth sent by described oscillator device is to the inhomogeneity plastic material two of the similar plastic material two of two or more unknown water cut or two or more unknown water cut, measure not by the residual electricity magnetic wave that this tested plastic material two absorbs, obtain plural second measured value; This second measured value is substituted into described function with the corresponding water cut of the inhomogeneity plastic material two calculating described unknown water cut.
4. the method for detection plastic material water cut systems axiol-ogy plastic material water cut according to claims 2 to 3, also comprise the steps: Electromgnetically-transparent by making oscillator device produce through plastic material two, to be received by the receiving equipment being arranged on plastic material two rear and measure the first or second measured value.
5. the method for detection plastic material water cut systems axiol-ogy plastic material water cut according to claims 2 to 3, also comprise the steps: the described first or second measured value be electromagnetic wave by making described oscillator device produce in described plastics internal reflection, and reflection wave is received by receiving equipment measure.
6. the method for detection plastic material water cut systems axiol-ogy plastic material water cut according to claims 2 to 3, also comprises the steps: that the described first or second measured value makes scattering wave be received by receiving equipment to measure in described plastics inscattering by the electromagnetic wave that makes described oscillator device and produce.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410041247.8A CN104807839A (en) | 2014-01-28 | 2014-01-28 | System for detecting water content of plastic, and method thereof |
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| CN201410041247.8A CN104807839A (en) | 2014-01-28 | 2014-01-28 | System for detecting water content of plastic, and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054518A (en) * | 2017-12-08 | 2018-05-18 | 华中科技大学 | A kind of adjustable Meta Materials wave-absorber of medium sound stage width band |
| CN117288782A (en) * | 2023-11-23 | 2023-12-26 | 北京锐达仪表有限公司 | High-precision composite detection system based on vibration and radiation principle |
-
2014
- 2014-01-28 CN CN201410041247.8A patent/CN104807839A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054518A (en) * | 2017-12-08 | 2018-05-18 | 华中科技大学 | A kind of adjustable Meta Materials wave-absorber of medium sound stage width band |
| CN108054518B (en) * | 2017-12-08 | 2020-05-19 | 华中科技大学 | Medium-based broadband adjustable metamaterial wave absorber |
| CN117288782A (en) * | 2023-11-23 | 2023-12-26 | 北京锐达仪表有限公司 | High-precision composite detection system based on vibration and radiation principle |
| CN117288782B (en) * | 2023-11-23 | 2024-02-23 | 北京锐达仪表有限公司 | High-precision composite detection system based on vibration and radiation principle |
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