CN101451879B - Loading detecting method and loading sensor for said method and loading detector - Google Patents
Loading detecting method and loading sensor for said method and loading detector Download PDFInfo
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- CN101451879B CN101451879B CN2008101797716A CN200810179771A CN101451879B CN 101451879 B CN101451879 B CN 101451879B CN 2008101797716 A CN2008101797716 A CN 2008101797716A CN 200810179771 A CN200810179771 A CN 200810179771A CN 101451879 B CN101451879 B CN 101451879B
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Abstract
The present invention provides a load measuring method, a load sensor for the method and a load measuring device. According to the method, a deflection beam (14) and a plane gap construction body (13) deforming when receiving load are used, the gap of the plane gap construction body varies along deformation of the deflection beam. Gas is feed to gap (g) formed by the plane gap construction body and the volume of the gas flowing by the gap is converted into load to measure load. The load sensor (1) comprises a panel shaped upper surface member (11), a panel shaped lower surface member (12), a deflection beam clamped between the upper surface member and the lower surface member, and a plane gap construction body, which forms a gap with the upper surface member and has a spray opening (13b), the spray opening feeds gas to the gap. A gas volume meter arranged in the gas path is used for measuring the gas volume of the gas feed to the gap, and the volume is converted into load with a processing unit (4).
Description
Technical field
The present invention relates to surpassing under 200 ℃ the hot environment, such as, in the high temperature compacting, the load assay method of measuring load and be used for the load transducer and the load determinator of this assay method accurately.
Background technology
In recent years, because the progress of industrial technology, the precision of product processing is more and more higher, and is in high temperature compacting field, also more and more higher to the requirement of high precision manipulation.In order to realize the high precision press process, need feed back the more accurate functions such as control of carrying out, the assurance of processing load value such as maneuvering load, also need more high-precision load to measure.In industrial circle, the load transducer that has built-in strainometer and be known as " dynamometer (load cell) " is often used as the load determining instrument (for example referring to Japanese kokai publication sho 54-70862 communique) that is assembled in the production equipment.
The heat resisting temperature of general dynamometer is 130 ℃.When dynamometer is used for adopting the indirect determination method that dynamometer is installed on ad-hoc location when 200 ℃ or the compacting of higher high temperature are measured,, isolated from the heat that is pressed thing at this ad-hoc location.In the case, be difficult to obtain high-precision measuring, this is because except the load that is applied to machined object, also the stress that must cause owing to the thermal deformation of shell is taken into account as influence factor.Adopt this indirect determination method also to be difficult to when a large amount of machined objects are pressed simultaneously, measure the load that is applied on each machined object, and be difficult to measure the distribution of the local load of a machined object.In order more directly to measure the load be applied on the machined object, need to have high-fire resistance more more and can be installed on the dynamometer of Working position.
Fig. 7 is the accompanying drawing that illustrates according to the structure of the dynamometer 100 of prior art.Fig. 7 A is that cut-open view and Fig. 7 B of dynamometer is the elastomeric vertical view that is disposed in the dynamometer main body.Dynamometer 100 comprises cylindrical shape dynamometer main body 110, elastic construction body 120, transmitting portions 130 and four resistive elements 140 that have seal cavity in it, wherein, elastic construction body 120 is known as " elastic body " and is configured to seal cavity is divided into space and following space, transmitting portions 130 is used for the loading transfer that upper surface received of dynamometer main body 110 to elastic body 120, and resistive element 140 is known as " strainometer " and upwards and around the top of elastic body 120 equidistantly installing with an angle of 90 degrees in week on the top of elastic body 120.When load is applied to the load application point of upper surface of the dynamometer main body 110 in the dynamometer 100 with this formation, elastic body 120 distortions, and 140 distortion of lip-deep strainometer.Owing to the resistance of strainometer 140 along with deflection changes, therefore, can utilize electrical method to measure resistance value and distortion by elastic body 120 comes the measuring load amount.
But strainometer 140 has the bundle structure of extremely thin resistance metal line betides the trickle distortion of the μ m level in the elastic body 120 with detection, and uses bonding agent that elastic body 120 and strainometer 140 are installed so that improve response to small distortion.Therefore, owing to heat deforms, ruptures, peels off etc., and the heat resisting temperature of these problems restriction dynamometers 100.As indicated above, use the prior art dynamometer 100 of strainometer 140 to have the serviceability temperature restriction, because strainometer 140 is fine resistive elements and can not be applied to surpass mensuration under 200 ℃ the hot environment such as high temperature compacting etc.
Summary of the invention
In view of problem mentioned above, the present invention aims to provide a kind of load assay method, its got rid of install in the detection position such as the needs of fine resistive elements such as strainometer and can be under hot environment measuring load accurately.The present invention also is provided for the load transducer and the load determinator of this load assay method.
Use flexure beam 14 and plane clearance tectosome 13 according to load assay method of the present invention, flexure beam 14 is elastic deformation when receiving load, the gap value of plane clearance tectosome 13 changes along with this flexure beam distortion, feed gas is to the formed gap g of plane clearance tectosome, and the gas flow in the gap of flowing through is converted to load and measures this load.Therefore, no longer need to use fine resistive element, thus for serviceability temperature without limits, even under hot environment also measuring load accurately.
In load assay method of the present invention, detect the gas temperature that is fed among the plane clearance tectosome 13 formed gap g, and come the correcting gas flow based on the gas temperature that is detected.Because flow based on the temperature variation of flowing gas, therefore, can come calibrated flow by the correction that increases based on temperature, and therefore can come measuring load more accurately based on the flow of being proofreaied and correct.
In load assay method of the present invention, the gas of the gap g that flows through is air.Therefore, can use the gas of economy and safety also can improve versatility.
Load transducer according to the present invention is the load transducer 1 that is used for load assay method mentioned above, comprise flat upper surface member 11, flat lower surface member 12, be held on flexure beam 14 and plane clearance tectosome 13 between upper surface member and the lower surface member, plane clearance tectosome 13 forms gap g with the upper surface member and has and is used for the injection orifice 13b of feed gas to this gap.Flexure beam 14 deflection when receiving load, gap value changes and is fed to the fluctuations in discharge of the gas of gap g along with this distortion.Since do not use the conditional fine resistive element of serviceability temperature according to load transducer of the present invention, therefore, can be at maneuvering load sensor under the hot environment.
In load transducer according to the present invention, plane clearance tectosome 13 has primary clearance and adjusts member 131, and it limits primary clearance.Therefore, the primary clearance of plane clearance tectosome can freely be provided with by selecting primary clearance to adjust any thickness of member.
In load transducer according to the present invention, flexure beam 14 comprises flat beam 14a, from the outstanding a plurality of fulcrum 14b of going up of the upper surface of beam 14a with from the outstanding a plurality of lower fulcrum 14c of portion of the lower surface of beam 14a, and beam 14a and last fulcrum 14b and the 14c of lower fulcrum portion forms or split ground forms.Therefore, can improve the degree of freedom of the structure of flexure beam 14.
In load transducer according to the present invention, load transducer 1 constitutes a unit and is rectangular tubular, triangle tubulose or cylindric on the whole.Therefore, load transducer can be used for different shape of various installation sites, determinand or the like.
Load determinator according to the present invention comprises load transducer mentioned above 1, be arranged at the gas meter 2 that is used for the gas flow path 15 of feed gas to the plane clearance tectosome 13 formed gap g of load transducer, by gas flow being converted to the processing unit 4 of load from gas meter 2 received signals, and the display unit 5 that is used for the load that display processing unit 4 changed, wherein at least one in the load transducer 1 is inserted in and is used to receive the smooth load dash receiver 7A of going up of load and is used to receive the smooth down between the load dash receiver 7B of load, detection is fed to the interior gas flow of gap g of load transducer 1, and detected gas flow is converted into load with measuring load.
In load determinator according to the present invention, a plurality of high buckstays 8 are inserted between load dash receiver 7A and the following load dash receiver 7B so that surround load transducer 1.Therefore, can measure bigger load.
In load determinator according to the present invention, high buckstay 8 comprises the flat beam 8a of portion, from the outstanding 8a of upper support portion of the 8a of beam portion upper surface with from the outstanding 8c of lower support portion of the 8a of beam portion lower surface.High buckstay 8 has similar structure with flexure beam 14.
In load determinator according to the present invention, be provided with the temperature sensor 3 of the gas temperature that is used to detect gas coming through stream 15, and proofread and correct the gas flow of the gap g that flows through based on the gas temperature that is detected.Therefore, measuring load more accurately.
By the description of the preferred embodiments of the present invention as mentioned below, can more fully understand the present invention in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the explanatory that illustrates according to the formation of the formation of the load transducer of the embodiment of the invention and load determinator;
Fig. 2 A illustrates the curve map that concerns between load and the gap value;
Fig. 2 B illustrates the curve map that concerns between gap value and the gas flow;
Fig. 3 illustrates the curve map how relation between load and the gas flow changes based on gas temperature.
Fig. 4 illustrates all kinds according to the overall shape of the load transducer of the embodiment of the invention, and wherein, Fig. 4 A illustrates the rectangular tube type, and Fig. 4 B illustrates triangle tubing type, and Fig. 4 C illustrates the cylindrical shape type;
Fig. 5 is the explanatory that illustrates when using the configuration of high buckstay and load transducer when measuring top load according to the load transducer of the embodiment of the invention, and wherein, it is various forms of planar configurations that Fig. 5 A illustrates cut-open view and Fig. 5 B and Fig. 5 C;
Fig. 6 is the explanatory of the configuration of high buckstay and load transducer when use being shown measuring distributed load according to the load transducer of the embodiment of the invention, and wherein, it is various forms of planar configurations that Fig. 6 A illustrates cut-open view and Fig. 6 B and Fig. 6 C; And
Fig. 7 A is to be elastomeric vertical view according to the cut-open view of the dynamometer of prior art and Fig. 7 B.
Embodiment
To explain load assay method and load transducer and load determinator referring to accompanying drawing according to the embodiment of the invention.Fig. 1 illustrates the formation according to the load transducer of the embodiment of the invention and load determinator.In this embodiment, load determinator 10 comprises the load transducer (dynamometer) 1 that forms the gap that supplied gas flows, is used to measure the flow through gas meter 2, the gas flow that is used for being measured of gas flow in gap and converts the processing unit 4 of load and the display unit 5 that is used to show the load of being changed to.If need, can be provided for the temperature sensor 3 of detected gas temperature so that can proofread and correct the gas flow of being measured.
As the load transducer 1 of the most characteristic characteristics of this embodiment are unit and comprising independently: flat upper surface member 11, have and flat lower surface member 12, plane clearance tectosome 13 that upper surface member 11 is identical shaped and be held on upper surface member 11 and lower surface member 12 between flexure beam 14, wherein from flat upper surface member 11 imposed loads of last direction, plane clearance tectosome 13 is arranged at the approximate centre of lower surface member 12 and forms gap g with upper surface member 11.For example, each in each member of formation load transducer 1 is formed by stainless steel.
The space 13a that supplied gas is passed through is formed at the approximate centre that plane clearance tectosome 13 inside and gas ejection ports 13b are formed at the upper surface of plane clearance tectosome 13.Plane clearance tectosome 13 is cylindrical shape on the whole.Gas flow path 15 is connected to plane clearance tectosome 13, and the gas that remains on constant pressure is supplied in the 13a of space through gas flow path 15 from gas supply source 6, and gas is fed in the gap g that occurs subsequently from injection orifice 13b through space 13a.When plane clearance tectosome 13 was disposed at the approximate centre of lower surface member 12, gap g was formed between the lower surface of the upper surface 13c of plane clearance tectosome 13 and upper surface member 11.Should be mentioned that in passing, primary clearance is adjusted member 131 and is illustrated in Figure 11 on the lower surface that is installed to the upper surface member 11 above the plane clearance tectosome 13, and the gap be formed at plane clearance tectosome 13 upper surface 13c therewith primary clearance adjust between the lower surface of member 131.But primary clearance can only be set when needed adjust member 131.Can form primary clearance g by the suitable thickness of selecting this primary clearance to adjust member 131.
In the load-measuring device according to this embodiment, gas meter 2 is arranged in the gas flow path 15 to flow through with mensuration and is formed at the gas flow in the gap in the load transducer 1 with above-mentioned formation.Can adopt any flowmeter in the known gas flowmeter 2 to come as this gas meter 2.Should be mentioned that in passing, supply with gas with constant pressure from gas supply source 6.Although preferably use air, also can use other gas as this gas.
The flow measurement value of being measured by gas meter 2 is sent to processing unit 4 as signal.Processing unit 4 stores data or its relational expression that concerns between the data of relation between expression load (MPa) shown in Fig. 2 A and the gap value (μ m) or its relational expression and the expression gap value shown in Fig. 2 B (μ m) and the gas flow (cc/sec) in advance.Come the calculated gap amount and from this gap value assumed (specified) load and be sent to display part 5 from the gas flow of being measured.The gas flow of being measured converted to like this be applied to the load on the load transducer 1 and show.
Fig. 2 A is the curve map that the relation between the formed gap of plane clearance tectosome of load that sensor receives and load transducer is shown.So shown in the curve map, when imposed load (MPa), gap value (pm) diminishes, and the two has inverse relation (straight line) basically.Therefore can come by the slope that calculates this straight line in advance from gap value (μ m) assumed (specified) load (MPa).Fig. 2 B illustrates through the gas flow in gap and by the curve map of the relation between the formed gap of plane clearance tectosome of load transducer.So shown in the curve map, the gas flow in the gap of flowing through is along with the change in gap becomes big greatly, and the two has the relation of direct ratio (straight line) basically.Therefore, can come from gas flow (cc/sec) calculated gap amount (μ m) by the slope of calculated line in advance.In this way, can come the calculated gap amount by measuring gas flow, and can calculate the load that is applied to load transducer 1 from gap value by gas meter 2.
In addition, the gas velocity of gas coming through stream changes based on temperature.That is, gas flow changes based on gas temperature.Fig. 3 illustrates the curve map how relation between load and the gas flow changes based on gas temperature.Shown in this curve map, the gradient of the straight line of load-gas flow relation is carried out parallel moving along with gas temperature changes, and along with gas temperature uprises, and diminishes with respect to the gas flow (cc/sec) of load.
Therefore, can and in processing unit 4, store data shown in Figure 3 in advance by mounting temperature sensor 3 in gas flow path 15, and the gas temperature of being measured based on temperature sensor 3 (℃) come correcting gas flow (cc/sec), the load (MPa) that is applied to load transducer 1 can more accurately be measured.
Below, will explain the operation of the load determinator (load assay method) that uses load transducer with formation mentioned above.For example, when the load of pressing machine is applied to the upper surface member 11 of load transducer 1, flexure beam 14 deflections.Therefore, the quantitative change little (narrow) of adjusting the formed gap g of lower surface of member 131 by the lower surface or the primary clearance of the upper surface of plane clearance tectosome 13 and upper surface member 11.Along with gap turn narrow, increase flow resistance through gas flow path 15 from the gas that the injection orifice 13b of plane clearance tectosome 13 is blown in the g of gap, thereby this flow is lowered from the constant pressure of gas supply source 6.When being measured to the variation of gas flow by gas meter 2, gas flow can be converted into load, and this load can be determined based on the relation between gap value shown in the relation between load shown in Fig. 2 A that is stored in the processing unit 4 and the gap value and Fig. 2 B and the gas flow.In the case, owing to gap g along with the increase of load reduces, gas flow is according to reducing in the relation shown in Fig. 2 A and Fig. 2 B respectively.
The measurement range of the load transducer 1 (dynamometer) among this embodiment is decided by the hardness of beam, the specification of presenting pressure and gas meter of gas.
In one embodiment of the invention, flexure beam 14 is deflection 5 μ m owing to the load of 1kg, and adjusting member 131 formed gap g by plane clearance tectosome 13 and primary clearance is that 0.1mm and gap length L are 30mm.The diameter phi of the injection orifice 13b of the plane clearance tectosome 13 that gas gap is used is 2mm, and gaseous tension is 600kPa, and the measurement range of gas meter is 0.1 to 20L/min and to measure resolution be 0.1L/min.In the case, the load measurement range be 20 to 0.1kg and resolution be 0.1kg.The gas flow that flows through gap g is also according to the diameter phi of injection orifice and the ratio (φ/L) change of gap length L.Therefore, this ratio is also determined by carrying out test in advance.Should be mentioned that in passing in this embodiment, mensuration can be carried out under 250 ℃ temperature.
Fig. 5 A to Fig. 5 C is used to explain when the load transducer that uses the embodiment of the invention is measured top load the explanatory of the configuration of high buckstay.Fig. 5 A is that in the case cut-open view and Fig. 5 B and Fig. 5 C is planimetric map.In this embodiment, load transducer 1 is configured to, make load transducer 1 by last load dash receiver 7A and following load dash receiver 7B in its basic central part clamping.Equally, high buckstay 8 is disposed between load dash receiver 7A and the following load dash receiver 7B so that surround the periphery of load transducer 1.High buckstay 8 have the shape substantially the same with flexure beam 14 and comprise the 8a of beam portion, a plurality of upper support 8b of portion of projecting upwards from the 8a of beam portion and from the outstanding downwards a plurality of lower support 8c of portion of the 8b of beam portion.Each high buckstay 8 can be independently.Perhaps, the situation of the flexure beam 14 shown in Fig. 4 A, Fig. 4 B and Fig. 4 C, the annular plate member of central opening can be used as the 8a of beam portion, and a plurality of upper support 8b of portion and a plurality of lower support 8c of portion can be arranged on the 8a of this beam portion.And the 8a of beam portion, 8b of upper support portion in the high buckstay 8 and the 8c of lower support portion can form each other or split ground forms.
And, can be used for load dash receiver 7A and following load dash receiver 7B based on the material that load to be determined is selected to have suitable intensity.When only using load transducer 1 mentioned above, can measure the load of about 20kg, but when being used in combination high buckstay 8, can measure up to about 50 tons load.
In Fig. 5 B, last load dash receiver 7A and following load dash receiver 7B are discoid components.Load transducer 1 is disposed at the approximate centre of load dash receiver 7A and following load dash receiver 7B, and three independently high buckstay 8A, 8B and 8C equidistantly dispose with 120 degree angles on diametric(al), so that encirclement load transducer 1.In Fig. 5 C, last load dash receiver 7A and following load dash receiver 7B are the square plate member, and load transducer 1 is disposed at the approximate centre of load dash receiver 7A and following load dash receiver 7B.Four independently high buckstay 8A to 8D are arranged in the angle of square plate member so that surround load transducer 1.Should be mentioned that in passing, can consider that the shape of load dash receiver 7A and Fig. 7 B and size adopt various configurations to be used for the configuration of a plurality of high buckstays 8.These high buckstays 8 can use the circular or square annular beams 8a of portion with open centre as share components.
The configuration of load transducer and high rigidity sensor when Fig. 6 A to Fig. 6 C illustrates the load transducer that uses this embodiment and measures distributed load.Fig. 6 A is that in the case cut-open view and Fig. 6 B and Fig. 6 C is planimetric map.In this embodiment, come a plurality of load transducers 1 of clamping by last load dash receiver 7A and following load dash receiver 7B, and high buckstay 8 is configured to surround these load transducers 1.In other words, a load transducer 1A is configured between these load dash receivers 7A, the 7B in the approximate center of last load dash receiver 7A and following load dash receiver 7B, and a plurality of load transducer 1B to 1E is configured to surround this centre-line load sensor 1A.And a plurality of high buckstay 8A to 8D are disposed at the outside of these load transducers 1B to 1E, and these load transducers and high buckstay are by two dash receiver 7A and 7B clamping.
Referring to Fig. 6 B, last load dash receiver 7A and following load dash receiver 7B are discoid components.Approximate centre and a plurality of load transducer 1B to 1E that load transducer 1A is disposed at two load dash receiver 7A and 7B equidistantly are configured to surround load transducer 1A with an angle of 90 degrees on diametric(al).And, high buckstay 8A to 8D on diametric(al) with the phase place that is different from load transducer 1B to 1E and the outside that equidistantly is disposed at these load transducers 1B to 1E with an angle of 90 degrees.In Fig. 6 C, last load dash receiver 7A and following load dash receiver 7B are the square plate members.Load transducer 1A is disposed at the approximate centre of two load dash receiver 7A and 7B, and eight load transducer 1B to 1I equidistantly are configured to surround load transducer 1A with miter angle on diametric(al), and four high buckstay 8A to 8D are disposed at the outside of these load transducers 1B to 1I and are in four angles of square plate member.Should be mentioned that in passing, except configuration mentioned above, consider size and the shape of load dash receiver 7A and 7B, can adopt various configurations to be used for the configuration of a plurality of load transducers 1 and a plurality of high buckstays.In the case, a plurality of high buckstay 8 also can use the circular or square annular beams 8a of portion with open centre as share components.
As explained above, rely on the variation of gap value and may not be shape shown in Figure 1 according to the load transducer of the embodiment of the invention and the operation of load determinator.Therefore, even when the beam with flexure beam becomes Fang Huan, three square rings or annulus and simplifies the formation of load transducer, still can obtain similar operation.Because shown in Fig. 5 A to Fig. 5 C, hard high buckstay is disposed at the outside, so can at random expand the load measurement range.And, can be by shown in Fig. 6 A to Fig. 6 C, disposing a plurality of load transducers and the local distribution of measuring load.
Utilizing flow to come measuring load to measure in the formation of the embodiment of the invention of distortion of part, gas meter can be installed on the optional position of gas flow path upstream and need not to install the micrometric measurement device near locating, but under the situation of the strainometer of prior art dynamometer, near the micrometric measurement device must be installed on and locate.Therefore, there is not the situation that heat resisting temperature is restricted owing to the micrometric measurement device.Because only the plane clearance tectosome is present in load and locates, therefore, can carry out the mensuration under the hot environment as long as the thermal deformation of this structure does not influence mensuration significantly as error.Even can measure being higher than under 250 ℃ the hot environment.As the example of application, the present invention can suitably be used for the overlapping placement of a plurality of resin plates and by the press imposed load carry out in conjunction with the time measuring load accurately.
Though described the present invention with reference to the specific embodiment of selecting for purpose of explanation, it will be apparent to those skilled in the art that under the situation that does not depart from key concept of the present invention and category and can make various modifications to the present invention.
Claims (11)
1. load assay method, use flexure beam (14) and plane clearance tectosome (13) to come the measuring load amount, described flexure beam (14) is elastic deformation when receiving load, the gap value of described plane clearance tectosome (13) changes along with the distortion of described flexure beam, said method comprising the steps of:
With gas feed to the gap (g) that forms by described plane clearance tectosome; And
The gas flow in the described gap of flowing through is converted to load and measures described load.
2. load assay method according to claim 1 is characterized in that, detects the temperature that is fed to the described gas in the described gap, and calibrates described gas flow based on detected gas temperature.
3. load assay method according to claim 1 and 2 is characterized in that described gas is air.
4. a load transducer (1) is used for each described load assay method of claim 1 to 3, and described load transducer (1) comprising:
Flat upper surface member (11), load are applied on the upper surface member (11);
Flat lower surface member (12) has and the identical shape of described upper surface member;
Flexure beam (14) is held between described upper surface member and the described lower surface member; And
Plane clearance tectosome (13), roughly be arranged in the center of described lower surface member, plane clearance tectosome (13) forms gap (g) with described upper surface member, and plane clearance tectosome (13) has injection orifice (13b), and described injection orifice is used for feed gas to described gap;
Wherein said flexure beam (14) is out of shape when receiving load, and the gap value that is formed by described plane clearance tectosome changes according to described distortion, and is fed to the fluctuations in discharge of the gas in described gap from the described injection orifice of described plane clearance tectosome.
5. load transducer according to claim 4 is characterized in that, described plane clearance tectosome (13) has the primary clearance of restriction primary clearance (g) and adjusts member (131).
6. load transducer according to claim 4, it is characterized in that, described flexure beam (14) comprises flat beam (14a), goes up fulcrum (14b) and from the outstanding a plurality of lower fulcrum portions (14c) of the lower surface of described beam from outstanding a plurality of of the upper surface of described beam, and described beam is describedly gone up fulcrum and described lower fulcrum portion forms or split ground forms.
7. according to each described load transducer in the claim 4 to 6, it is characterized in that described load transducer (1) constitutes a unit and is rectangular tubular, triangle tubulose or cylindric on the whole.
8. load determinator comprises:
Each described load transducer (1) in the claim 4 to 7;
Gas meter (2) is arranged in the gas flow path (15), and described gas flow path (15) is used for feed gas to the gap (g) that is formed by the plane clearance tectosome (13) of described load transducer;
Processing unit (4) is by converting gas flow to load from described gas meter (2) received signal; And
Display unit (5) is used for showing the described load that is converted to by described processing unit (4);
In the wherein said load transducer (1) at least one is inserted in and is used to receive the smooth last load dash receiver (7A) of load and is used to receive between the smooth following load dash receiver (7B) of load, described gas meter (2) detects the gas flow in the gap (g) that is fed to described load transducer, and described processing unit (4) converts detected gas flow to load.
9. load determinator according to claim 8 is characterized in that, a plurality of high buckstays (8) are inserted between described last load dash receiver and the described following load dash receiver to surround described load transducer (1).
10. load determinator according to claim 9, it is characterized in that described high buckstay (8) comprises flat beam portion (8a), from the outstanding upper support portion (8b) of the upper surface of described beam portion with from the outstanding lower support portion (8c) of lower surface of described beam portion.
11. each described load determinator in 10 according to Claim 8, it is characterized in that, be provided with and be used for detecting the temperature sensor (3) of temperature of gas of described gas flow path (15) of flowing through, proofread and correct described gas flow based on detected gas temperature.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-312475 | 2007-12-03 | ||
| JP2007312475 | 2007-12-03 | ||
| JP2007312475A JP4466727B2 (en) | 2007-12-03 | 2007-12-03 | Load sensor and load measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451879A CN101451879A (en) | 2009-06-10 |
| CN101451879B true CN101451879B (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101797716A Expired - Fee Related CN101451879B (en) | 2007-12-03 | 2008-12-03 | Loading detecting method and loading sensor for said method and loading detector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4466727B2 (en) |
| CN (1) | CN101451879B (en) |
| TW (1) | TWI394937B (en) |
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|---|---|---|---|---|
| CN112344842B (en) * | 2020-10-06 | 2021-09-24 | 大连理工大学 | A device for testing and calibrating strain gauges in a high temperature environment |
| CN117906567B (en) * | 2024-03-07 | 2024-05-10 | 中国航空工业集团公司北京长城计量测试技术研究所 | High-temperature strain calibration device based on rigid frame beam and tracing method thereof |
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|---|---|---|---|---|
| JP2532326Y2 (en) * | 1989-05-26 | 1997-04-16 | キヤノン電子株式会社 | Aperture device |
| JP3177790B2 (en) * | 1992-05-14 | 2001-06-18 | ニッタ株式会社 | Flexure element for detecting force and moment |
| JP2002277227A (en) * | 2001-03-16 | 2002-09-25 | Union Optical Co Ltd | Air type measuring instrument |
| TW595097B (en) * | 2003-08-19 | 2004-06-21 | Ind Tech Res Inst | Surface acoustic wave actuating device with adjustable weight load |
-
2007
- 2007-12-03 JP JP2007312475A patent/JP4466727B2/en not_active Expired - Fee Related
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2008
- 2008-11-18 TW TW97144508A patent/TWI394937B/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4466727B2 (en) | 2010-05-26 |
| JP2009139103A (en) | 2009-06-25 |
| CN101451879A (en) | 2009-06-10 |
| TW200938816A (en) | 2009-09-16 |
| TWI394937B (en) | 2013-05-01 |
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