CN104330535A - Simple humidity sensor checking device - Google Patents
Simple humidity sensor checking device Download PDFInfo
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- CN104330535A CN104330535A CN201410630884.9A CN201410630884A CN104330535A CN 104330535 A CN104330535 A CN 104330535A CN 201410630884 A CN201410630884 A CN 201410630884A CN 104330535 A CN104330535 A CN 104330535A
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- calibrating
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- 239000000523 sample Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000003595 mist Substances 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000001846 repelling effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 238000012795 verification Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to the field of humidity sensor checking, and discloses a simple humidity sensor checking device which comprises a humidifying system, a calibrating cavity, a dehumidifier and a standard temperature and humidity monitor, wherein an atomizing pipe of the humidifying system is fixedly connected with a calibrating cavity by means of a connecting hole of the calibrating cavity, the dehumidifier is fixed at one side surface of the calibrating cavity, a probe of the standard temperature and humidity monitor is fixedly connected with the calibrating cavity by means of a connecting hole of the calibrating cavity, a probe of a to-be-checked humidity sensor is fixedly connected with the calibrating cavity by means of the connecting hole of the calibrating cavity, and the connecting holes in a cavity panel are all provided with sealing cutting sleeves, so that the atomizing pipe and the probes of the to-be-checked humidity sensor and the standard temperature and humidity monitor can be fixed. The portable checking device solves the problem that a humidity sensor of a dampness repelling device in electrical equipment cannot be regularly checked due to defects that an existing checking device calibrating device can only perform offline detection and cannot perform on-site checking, and has the advantages of convenience in operation, high checking speed, convenience in carrying and the like.
Description
Technical field
The present invention relates to a kind of humidity sensor verification field, particularly relate to a kind of calibration equipment of humidity sensor.
Background technology
The numerical value that humidity value in air is industrial or agricultural, electronics, chemical industry and multiple scientific research environment are comparatively paid close attention to is the comfortable and scientific data important references index accurately of living environment.Such as, the requirement of some device to humidity value of transformer station is higher, the pith of first and second equipment is contacted in outdoor terminal box of transformer substation, power supply box Deng Shi transformer station, the safety and Health being directly connected to transformer station runs, but, affect by wet environment, power grid security accident happens occasionally, for ensureing the effective monitoring to equipment humidity environment, guaranteeing the accuracy measured, needing regularly to verify transformer station's moisture separating device.At present, transformer station extensively adopts the moisture separating devices such as well heater to drive tide dehumidifying to terminal box and power supply box.Humidity value uses humidity sensor in measuring more, and the calibration multiselect precise dew-point hygrometer of humidity sensor is as calibration criterion device, sensor is delivered to laboratory, put into standard humidity generator test cabinet, and the humidity calibration point needed for setting, by comparing the difference of the output valve of rh value measured by precise dew-point hygrometer and humidity sensor, and reach the object of calibration, but this calibrating installation can only offline inspection, cannot field-checking.And device structure is complicated, cost is high, uses inconvenience, can not adapt to the humidity sensor calibration requirements in complex environment flexibly.
Summary of the invention
Can only offline inspection for solving above-mentioned humidity sensor calibrating installation, use inconvenience, the problem of the calibration of humidity sensor in complex environment can not be adapted to flexibly, the invention provides a kind of can use online, structure is relatively simple, easy to operate Portable temperature sensor calibration device.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of calibration equipment of easy humidity sensor, comprise humidification system 1, calibrating chamber 6, dehumidifier 9 and standard atmosphere monitor 10, the mist pipe 4 of described humidification system 1 is fixedly connected with calibrating chamber 6 by the connecting hole 7 in calibrating chamber 6, dehumidifier 9 is fixed on a side in calibrating chamber, the probe 18 of standard atmosphere monitor 10 is fixedly connected with calibrating chamber 6 by the connecting hole 7 in calibrating chamber, the probe of humidity sensor to be measured is fixedly connected with calibrating chamber 6 by calibrating chamber connecting hole 7, and the connecting hole 7 in cavity panel is equiped with hermetic collar, the probe of mist pipe 4 and humidity sensor to be measured and standard atmosphere meter can be fixed, described humidification system 1, comprise ultrasound wave high frequency atomizing piece 2, water tank 3, mist pipe 4, controller 5, the aqueous water in water tank forms water smoke under the effect of high-frequency ultrasonic, and water smoke enters calibrating chamber 6 via mist pipe 4, described dehumidifier 9 comprises chill surface 13, semiconductor refrigerating dehumidifying chip 14, heat sink 15, radiator fan 16, and dehumidifier 9 is fixed on calibrating chamber lateral surface, for the humidity in control verification cavity, to measure humidity value at a certain temperature, described standard atmosphere monitor 10,12 are formed by humiture probe 18, signal transmssion line 11, main frame, standard atmosphere monitor 10 and the Temperature Humidity Sensor be calibrated are positioned in the calibrating chamber of the same humidity environment under uniform temperature, measure some groups of correlative values within a certain period of time, can sensor to be tested be verified.
As a kind of preferred version, the side in calibrating chamber 6 has more than three connecting holes 7, connects humidification system 1, standard atmosphere monitor 10 and more than two humidity sensors to be measured respectively, realizes calibrating several humidity sensors simultaneously.
As a kind of preferred version, described calibrating chamber 6 is the rectangular parallelepiped constant temperature enclosures with heat-insulation layer be made up of organic plastic plate, and can reduce to examine and determine cavity inner temperature to the full extent affects by extraneous temperature, substantially realizes constant temperature and pressure in cavity.
As a kind of preferred version, calibrating chamber 6 comprises heat-insulation layer 17, coordinates dehumidifier 9 can make to keep constant temperature and pressure environment in cavity.
As a kind of preferred version, the calibrating back side, chamber 6 is provided with a rectangular window, and has corresponding scuttle, to realize, to not having the humidity sensor of popping one's head in verify, during calibration, sensor to be calibrated being put into rapidly calibrating chamber, and building scuttle.
The invention has the beneficial effects as follows: humidity sensor calibration equipment of the present invention is a kind of portable calibration equipment, solve existing calibration equipment calibrating installation can only offline inspection, cannot field-checking shortcoming and in the electrical equipment that causes, moisture separating device humidity sensor cannot the problem of timing verification, there is the advantages such as structure is relatively simple, easy to operate, verification speed fast, be easy to carry.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of humidity sensor calibration equipment of the present invention;
Fig. 2 is the cut-open view in a kind of humidity sensor calibration equipment calibrating of the present invention chamber;
In figure: 1, humidification system; 2, ultrasound wave high frequency atomizing piece; 3, water tank; 4, mist pipe; 5, controller; 6, chamber is examined and determine; 7, connecting hole; 8, rectangular window; 9, dehumidifier; 10, standard atmosphere detecting device; 11, signal transmssion line; 12, main frame; 13, chill surface; 14, semiconductor refrigerating dehumidifying chip; 15, heat sink; 16, radiator fan; 17, heat-insulation layer; 18, pop one's head in.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, as Fig. 1, shown in Fig. 2, the calibration equipment of humidity sensor of the present invention, comprise humidification system 1, calibrating chamber 6, dehumidifier 9 and standard atmosphere monitor 10, the mist pipe 4 of described humidification system 1 is fixedly connected with calibrating chamber 6 by the connecting hole 7 in calibrating chamber 6, dehumidifier 9 is fixed on a side in calibrating chamber, the probe 18 of standard atmosphere monitor 10 is fixedly connected with calibrating chamber 6 by the connecting hole 7 in calibrating chamber, the probe of humidity sensor to be measured is fixedly connected with calibrating chamber 6 by calibrating chamber connecting hole 7, and the connecting hole 7 in cavity panel is equiped with hermetic collar, the probe of mist pipe 4 and humidity sensor to be measured and standard atmosphere meter can be fixed, described humidification system 1, comprise ultrasound wave high frequency atomizing piece 2, water tank 3, mist pipe 4, controller 5, after pouring a certain amount of water into toward the water tank of humidification system, start the power supply of humidification system, regulate mist amount controller, aqueous water in water tank forms water smoke under the effect of high-frequency ultrasonic, and water smoke enters calibrating chamber 6 via mist pipe 4, described dehumidifier 9 comprises chill surface 13, semiconductor refrigerating dehumidifying chip 14, heat sink 15, radiator fan 16, and dehumidifier 9 is fixed on calibrating chamber lateral surface, for the humidity in control verification cavity, to measure humidity value at a certain temperature, described standard atmosphere monitor 10,12 are formed by humiture probe 18, signal transmssion line 11, main frame, can according to different needs, select the reference value of Hygrothermograph as Comparability test of different accuracy, standard atmosphere monitor 10 and the Temperature Humidity Sensor be calibrated are positioned in the calibrating chamber of the same humidity environment under uniform temperature, measure some groups of correlative values within a certain period of time, can sensor to be tested be verified.
Concrete Comparability test process is:
1) first, each for instrument parts are connected, check that whether calibrating chamber 6 sealing is good.Start the humidification system 1 of instrument, the indicating value change of observation caliber humidity temperature monitor 10, humidification is stopped when rh value rises to about 90%, rapidly humidity sensor to be calibrated probe is connected with calibrating chamber, after its stable 10min minute, record standard humidity temperature monitor 10 and hygroscopic test value to be calibrated, then, every the rh value I of about 2min record standard humidity temperature monitor 10
mark(%RH) and the output valve I of device to be calibrated
show(%RH), record 3 data altogether, the test of 90% humidity point can be completed.
2) start dehumidifier 9, cavity is dehumidified, when the humidity value of standard atmosphere monitor 10 is shown as about 80%, stop dehumidifying, after stablizing 10min minute, then, every the rh value I of about 2min record standard humidity temperature monitor 10
mark(%RH) and the output valve I of device to be calibrated
show(%RH), record 3 data altogether, the test of 80% humidity point can be completed.
3) by step 2) method of operating successively 60%, 40%, 20% humidity point is calibrated, all tests can be completed.
4) calculate the mean value of the output valve of device to be calibrated under each calibration point, and press formula △ I=I
mark-I
showcalculate the modified value of each calibration point, evaluate the class of accuracy of humidity sensor to be calibrated.
Claims (8)
1. an easy humidity sensor calibration equipment, comprise calibrating chamber (6) and standard atmosphere monitor (10), it is characterized in that: also comprise humidification system (1) and dehumidifier (9), described dehumidifier (9) is fixed on a side of calibrating chamber (6), humidification system (1), standard atmosphere monitor (10), humidity sensor to be measured is connected with examining and determine chamber (6) by the connecting hole (7) in calibrating chamber, described standard atmosphere monitor (10) comprises probe (18), signal transmssion line (11) and main frame (12).
2. humidity sensor calibration equipment according to claim 1, it is characterized in that: the probe of the mist pipe (4) of described humidification system (1), the probe (18) of standard atmosphere monitor (10), humidity sensor to be measured is fixedly connected with examining and determine chamber (6) by calibrating chamber connecting hole (7), connecting hole (7) in cavity panel is all equiped with hermetic collar, can fix the probe of mist pipe (4) and humidity sensor to be measured and standard atmosphere monitor.
3. humidity sensor calibration equipment according to claim 1, it is characterized in that: described humidification system (1) comprises ultrasound wave high frequency atomizing piece (2), water tank (3), controller (5), aqueous water in water tank (3) forms water smoke under the effect of high-frequency ultrasonic, and water smoke enters calibrating chamber (6) via mist pipe (4).
4. humidity sensor calibration equipment according to claim 1, it is characterized in that: described dehumidifier (9) comprises chill surface (13), semiconductor refrigerating dehumidifying chip (14), heat sink (15), radiator fan (16), dehumidifier (9) is fixed on calibrating cavity side, for regulating the humidity in cavity, to measure humidity value at a certain temperature.
5. according to the humidity sensor calibration equipment of claim 1,3 or 4 described in any one, it is characterized in that: the side in calibrating chamber has more than three connecting holes (7), connect humidification system (1) respectively, calibrate humidity temperature monitor (10) and more than two humidity sensors to be measured, realize calibrating several humidity sensors simultaneously.
6., according to the humidity sensor calibration equipment of claim 1,3 or 4 described in any one, it is characterized in that: described calibrating chamber (6) is the rectangular parallelepiped cavity be made up of organic plastic plate.
7. according to the humidity sensor calibration equipment of claim 1,3 or 4 described in any one, it is characterized in that: described calibrating chamber (6) comprises heat-insulation layer (17), calibrating cavity inner temperature can be reduced affect by extraneous temperature, coordinate dehumidifier (9) can make to keep constant temperature and pressure environment in cavity.
8. according to the humidity sensor calibration equipment of claim 1,3 or 4 described in any one, it is characterized in that: the calibrating back side, chamber 6 is provided with a rectangular window, and has corresponding hermetyic window lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630884.9A CN104330535A (en) | 2014-11-11 | 2014-11-11 | Simple humidity sensor checking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630884.9A CN104330535A (en) | 2014-11-11 | 2014-11-11 | Simple humidity sensor checking device |
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| Publication Number | Publication Date |
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| CN104330535A true CN104330535A (en) | 2015-02-04 |
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|---|---|---|---|
| CN201410630884.9A Pending CN104330535A (en) | 2014-11-11 | 2014-11-11 | Simple humidity sensor checking device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424767A (en) * | 2015-10-29 | 2016-03-23 | 上海申矽凌微电子科技有限公司 | Humidity-sensor-chip mass production testing device and method |
| CN106248913A (en) * | 2016-07-14 | 2016-12-21 | 徐晟伟 | A kind of concrete humidity detection device |
| CN106596845A (en) * | 2016-08-08 | 2017-04-26 | 宁波方太厨具有限公司 | Steam humidity measuring device for cooking equipment and measuring method thereof |
| CN109813360A (en) * | 2019-01-31 | 2019-05-28 | 中国人民解放军92493部队计量测试研究所 | An online calibration device for temperature and humidity of environmental parameters |
| CN110631641A (en) * | 2019-10-30 | 2019-12-31 | 东莞市慕思寝室用品有限公司 | A temperature and humidity monitoring system and temperature and humidity monitoring method |
| CN111103004A (en) * | 2019-12-16 | 2020-05-05 | 国网山东省电力公司威海供电公司 | A ring network cabinet anti-condensation tester |
| CN113009114A (en) * | 2021-03-10 | 2021-06-22 | 中国水利水电科学研究院 | Test device for generating, transmitting and monitoring temperature-controlled water vapor in soil body gradual humidification test |
| CN115508123A (en) * | 2022-10-27 | 2022-12-23 | 浙江普林艾尔电器工业有限公司 | Portable dehumidification amount detection device and measurement method thereof |
| CN115901015A (en) * | 2022-12-01 | 2023-04-04 | 珠海市运泰利自动化设备有限公司 | Method for calibrating temperature measurement sensor inside equipment on line |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424767A (en) * | 2015-10-29 | 2016-03-23 | 上海申矽凌微电子科技有限公司 | Humidity-sensor-chip mass production testing device and method |
| CN105424767B (en) * | 2015-10-29 | 2018-02-16 | 上海申矽凌微电子科技有限公司 | The test device and method of testing that humidity sensor chip is produced in enormous quantities |
| CN106248913A (en) * | 2016-07-14 | 2016-12-21 | 徐晟伟 | A kind of concrete humidity detection device |
| CN106596845A (en) * | 2016-08-08 | 2017-04-26 | 宁波方太厨具有限公司 | Steam humidity measuring device for cooking equipment and measuring method thereof |
| CN106596845B (en) * | 2016-08-08 | 2019-03-01 | 宁波方太厨具有限公司 | A kind of the steam wetness measurement device and its measurement method of cooking equipment |
| CN109813360A (en) * | 2019-01-31 | 2019-05-28 | 中国人民解放军92493部队计量测试研究所 | An online calibration device for temperature and humidity of environmental parameters |
| CN110631641A (en) * | 2019-10-30 | 2019-12-31 | 东莞市慕思寝室用品有限公司 | A temperature and humidity monitoring system and temperature and humidity monitoring method |
| CN111103004A (en) * | 2019-12-16 | 2020-05-05 | 国网山东省电力公司威海供电公司 | A ring network cabinet anti-condensation tester |
| CN113009114A (en) * | 2021-03-10 | 2021-06-22 | 中国水利水电科学研究院 | Test device for generating, transmitting and monitoring temperature-controlled water vapor in soil body gradual humidification test |
| CN115508123A (en) * | 2022-10-27 | 2022-12-23 | 浙江普林艾尔电器工业有限公司 | Portable dehumidification amount detection device and measurement method thereof |
| CN115901015A (en) * | 2022-12-01 | 2023-04-04 | 珠海市运泰利自动化设备有限公司 | Method for calibrating temperature measurement sensor inside equipment on line |
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Application publication date: 20150204 |