CN213902434U - Device for improving accuracy of temperature and humidity sensor - Google Patents
Device for improving accuracy of temperature and humidity sensor Download PDFInfo
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- CN213902434U CN213902434U CN202023331669.9U CN202023331669U CN213902434U CN 213902434 U CN213902434 U CN 213902434U CN 202023331669 U CN202023331669 U CN 202023331669U CN 213902434 U CN213902434 U CN 213902434U
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Abstract
The application discloses promote device of temperature and humidity sensor degree of accuracy, it includes the environmental test case, the environmental test case includes the control unit, be provided with the adjustment circuit board in the environmental test case, the last electricity of adjustment circuit board is connected with a plurality of temperature sensor that are located the environmental test incasement, the last electricity of temperature sensor is connected with the memory, temperature sensor is connected with the adjustment circuit board electricity respectively, the last electricity of adjustment circuit board is connected with the treater, the treater is connected with the control unit electricity. This application has the effect that improves temperature sensor and marks efficiency.
Description
Technical Field
The application relates to the technical field of sensor calibration, in particular to a device for improving the accuracy of a temperature and humidity sensor.
Background
When now researching and developing the temperature and humidity transmitter, the temperature and humidity transmitter is required to be placed in a temperature and humidity environment for product testing.
The temperature and humidity transmitter can be calibrated in a constant-temperature water bath mode during temperature test in production, and the humidity is calibrated in a saturated salt mode in a static method. The accuracy can meet the requirement when the measurement and calibration are carried out by a constant-temperature water bath method, but the labor cost is relatively high; the saturated salt method has strict requirements on the balance of liquid and gas phases and has higher requirements on the stability of the environmental temperature. The constant temperature water bath and saturated salt mode requires a long wait time to use.
Later, a test box is adopted for calibration, firstly, a temperature and humidity sensor to be calibrated is placed into a stable environment test box, the temperature and humidity of the test box are changed to calibrate the temperature and humidity sensor, certain errors are allowed in calibration temperature, and calibration can be judged to be finished as long as parameters output after the temperature and humidity sensor is measured are within the error range.
The above prior art solutions have the following drawbacks: any temperature and humidity sensor needs to be calibrated and corrected, the accuracy can reach the technical index, and the existing transmitter adopts a one-by-one calibration mode, so that the calibration efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a promote device of temperature and humidity sensor degree of accuracy, it has the effect that improves temperature sensor and mark efficiency.
The technical purpose of the application is realized by the following technical scheme:
the utility model provides a promote device of temperature and humidity sensor degree of accuracy, includes the environmental test case, the environmental test case includes the control unit, be provided with the adjustment circuit board in the environmental test case, the last electricity of adjustment circuit board is connected with a plurality of temperature sensor that are located the environmental test case, the last electricity of temperature sensor is connected with the memory, temperature sensor is connected with the adjustment circuit board electricity respectively, the last electricity of adjustment circuit board is connected with the treater, the treater is connected with the control unit electricity.
By adopting the technical scheme, the temperature sensor to be calibrated is connected to the adjusting tool through a cable and is placed in the environment test box, the processor receives data transmitted by the environment test box, and simultaneously processes data detected by different temperature sensors in the current environment test box to form compensation data, and the compensation data is recorded in the memory, so that the calibration of the temperature sensor is realized, when the temperature sensor is used later, data parameters corrected by the compensation data of the memory are automatically and outwards output, at the moment, the numerical value during the calibration is always a fixed value due to the fact that manual calibration is avoided, the corrected numerical value is prevented from being a maximum value or a minimum value in an allowable range interval, and the accuracy of the numerical value output after the calibration can be further improved;
when the environmental test chamber carries out data detection, a calibrator can continuously carry out the electric connection between the adjusting circuit board and other temperature sensors on the adjusting tool;
the method is suitable for batch production correction of the temperature sensors, improves the production efficiency, reduces the labor cost, shortens the period and improves the accuracy of calibration.
The application is further configured to: the adjusting tool is electrically connected with a display, and the display can be used for displaying data information measured by any temperature sensor on the adjusting circuit board.
By adopting the technical scheme, the display displays the current numerical values displayed by the temperature sensors, so that the calibrator can conveniently observe, and can timely process the measured temperature and humidity parameters if the temperature and humidity parameters are abnormally changed.
The application is further configured to: an adjusting tool is fixedly arranged on the adjusting circuit board, a connecting seat is fixedly arranged in the environment test box, and the adjusting tool is detachably connected with the connecting seat.
Through adopting above-mentioned technical scheme, use the connecting seat to realize adjusting the high-speed joint between work and the environmental test case, be convenient for adjust the fixed mounting of frock.
The application is further configured to: the adjusting tool is characterized in that at least one group of oppositely arranged connecting plates are fixedly arranged on the side faces of the adjusting tool, and arc-shaped connecting grooves are formed in the opposite surfaces of one group of connecting plates;
the connecting seat is fixedly provided with elastic plates which correspond to the connecting plates one to one, the elastic plates are fixedly provided with limit blocks which can be inserted into the arc-shaped connecting grooves, and the limit blocks limit the relative movement between the elastic plates and the connecting plates.
Through adopting above-mentioned technical scheme, correspond the back with connecting plate and elastic plate, insert the adjustment frock between the elastic plate, the connecting plate is through exerting the effect to the stopper, makes the elastic plate produce and warp, and the stopper moves along the connecting plate surface, until in the stopper inserts the arc spread groove, the elastic plate can restrict the connecting plate rather than the separation this moment, and the easy dismounting between adjustment frock and the connecting seat is swift, shortens the school cycle.
The application is further configured to: and a connecting cable penetrates through the environmental test chamber, the connecting cable is tightly connected with the side wall of the environmental test chamber, and the connecting cable is used for adjusting the electric connection between the circuit board and the processor.
Through adopting above-mentioned technical scheme, the closed connection of connecting cable between environmental test case can avoid the junction between connecting cable and the environmental test case to the influence of environmental test case inner chamber environment.
The application is further configured to: the environmental test chamber comprises a standard temperature sensor, a humidity sensor, a humidifier and a temperature regulator.
By adopting the technical scheme, the standard temperature sensor and the humidity sensor are used for measuring the actual temperature and humidity parameters in the environmental test chamber, and the control unit controls the work of the humidifier and the temperature regulator, so that the reference environment is provided for the temperature sensor to be calibrated.
The application is further configured to: the environmental test chamber further comprises a fan.
Through adopting above-mentioned technical scheme, the setting of fan can drive the air flow in the environmental test case, improves the uniformity of the environmental parameter in the environmental test case, makes the temperature sensor's of different positions environment approach the same.
The application is further configured to: the environmental test chamber further comprises a touch screen adjusting unit.
Through adopting above-mentioned technical scheme, can directly adjust the parameter in the environmental test case through touch screen regulating element, make the environmental parameter in the environmental test case change, it is convenient to adjust, the sensor degree of accuracy of being convenient for calibrates.
In summary, the present application includes at least one of the following benefits:
1. the temperature sensor to be calibrated is connected to the adjusting tool through a cable and is placed in the environment test box, the processor receives data transmitted by the environment test box, and simultaneously processes data detected by different temperature sensors in the current environment test box to form compensation data which is recorded in the memory, so that the temperature sensor is calibrated;
when the environmental test chamber carries out data detection, a calibrator can continuously carry out the electric connection between the adjusting circuit board and other temperature sensors on the adjusting tool;
the method is suitable for batch production correction of the temperature sensors, improves the production efficiency, reduces the labor cost, shortens the period and improves the accuracy of calibration;
2. the display displays the current numerical value displayed by each temperature sensor, so that a calibrator can conveniently observe the current numerical value, and can timely process the current numerical value if the measured temperature and humidity parameters are abnormally changed;
3. after the connecting plate corresponds with the elastic plate, the adjusting tool is inserted between the elastic plates, the connecting plate acts on the limiting blocks to enable the elastic plates to deform until the limiting blocks are inserted into the arc-shaped connecting grooves, the elastic plates can limit the connecting plates to be separated from the connecting plates at the moment, the adjusting tool and the connecting seat are convenient and quick to disassemble and assemble, and the calibration period is shortened.
Drawings
FIG. 1 is a schematic overall layout diagram of the first embodiment;
fig. 2 is a schematic cross-sectional view illustrating the connection between the connection seat and the adjustment tool in the second embodiment.
In the figure, 1, an environmental test chamber; 11. a control unit; 12. a connecting seat; 13. an elastic plate; 131. a limiting block; 14. a standard temperature sensor; 15. a humidity sensor; 16. a thermostat; 17. a humidifier; 18. a fan; 19. a touch screen adjusting unit; 2. adjusting the tool; 21. adjusting the circuit board; 22. a connecting plate; 221. an arc-shaped connecting groove; 3. a temperature sensor; 31. a memory; 4. a processor; 5. a display; 6. and connecting the cable.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Example one
Referring to fig. 1, for this application, a device for improving the accuracy of a temperature and humidity sensor is disclosed, which includes an environmental test chamber 1, the transmitter is a temperature and humidity transmitter, and the environmental test chamber 1 includes a chamber body and a standard temperature sensor 14, a humidity sensor 15, a humidifier 17, and a temperature regulator 16 located in the chamber body. The humidity sensor 15 is a wet-dry bulb sensor, the temperature regulator 16 is used for regulating the temperature in the box body, and the humidifier 17 is used for regulating the humidity in the box body.
The environmental test chamber 1 further comprises a control unit 11, the control unit 11 can receive temperature data and humidity data in the chamber body measured by the standard temperature sensor 14 and the humidity sensor 15, and the control unit 11 controls the work of the temperature regulator 16 and the humidifier 17 to keep the temperature and the humidity in the chamber body stable and provide a stable reference environment for the temperature sensor 3 to be calibrated.
The environmental test chamber 1 further comprises a fan 18 electrically connected with the control unit 11, and the fan 18 can drive the air in the environmental test chamber 1 to flow, so that the environments of the temperature sensors 3 at different positions are approximately the same.
The environmental test box 1 further comprises a touch screen adjusting unit 19 electrically connected with the control unit 11, the touch screen adjusting unit 19 can directly adjust test environmental parameters set in the environmental test box 1, so that the temperature and the humidity in the environmental test box 1 are changed, the adjustment is convenient, and the accuracy of the temperature sensor 3 at different temperatures is convenient to calibrate.
One end of one of the connecting cables 6 extending out of the environmental test chamber 1 is electrically connected with the processor 4, the processor 4 is electrically connected with the control unit 11, the processor 4 can receive temperature and humidity information in the environmental test chamber 1 acquired by the control unit 11, and the processor 4 can write data into the memory 31, wherein the data is a difference value between standard temperature and humidity data and actual measurement data of the transmitter.
Another connecting cable 6 electricity is connected with display 5, and display 5 is liquid crystal display, and display 5 shows the current actually measured temperature value, the humidity value that each temperature sensor 3 shows, and the alignment staff of being convenient for observes, when the humiture parameter change that appears measuring is unusual, can in time handle.
In another embodiment, the connection cable 6 between the adjusting circuit board 21 and the process, and the connection cable 6 between the adjusting circuit board 21 and the display 5 share the same cable.
The implementation principle of the above embodiment is as follows:
the temperature sensor 3 needing to be adjusted and corrected is installed on an adjusting tool 2 and is placed in an environmental test chamber 1, an adjusting circuit board 21 on the sensor adjusting tool 2 is connected with a processor 4 through a cable, the processor 4 receives data transmitted by the environmental test chamber 1 and records data detected by different temperature sensors 3 in the current environmental test chamber 1 at the same time to form compensation data, the compensation data are recorded in a memory 31 to realize calibration of the temperature sensor 3, and when the temperature sensor 3 is used later, data parameters corrected through the compensation data of the memory 31 can be automatically output outwards;
when the environmental test chamber 1 performs data detection, a calibrator can continue to perform electrical connection between the adjusting circuit board 21 and other temperature sensors 3 on the adjusting tool 2; the method is suitable for batch production correction of the temperature sensors 3, the productivity is improved, the labor cost is reduced, the period is shortened, and meanwhile, the calibration accuracy is improved; when the measured temperature and humidity parameters are abnormal, the temperature and humidity parameter measurement method can process the temperature and humidity parameters in time.
Example two
Referring to fig. 2, a device for improving temperature and humidity sensor accuracy, the difference lies in with embodiment 1, connecting seat 12 has set firmly in environmental test case 1, connecting seat 12 is square board, terminal surface and the contact of 1 inner chamber bottom surface of environmental test case under connecting seat 12, the side of connecting seat 12 has set firmly two elastic plates 13 that set up along side length direction interval respectively, elastic plates 13 is provided with eight altogether, elastic plates 13 can produce elastic deformation, elastic plates 13 is the rectangular board that length direction one end and connecting seat 12 are connected, wear to be equipped with the bolt with connecting seat 12 threaded connection on the elastic plates 13.
A limiting block 131 is integrally formed on the opposite surface of the elastic plate 13, the limiting block 131 is located above the connecting seat 12, one side of the limiting block 131 is an arc-shaped surface protruding outwards, and the other side of the limiting block 131 is a plane in contact connection with the elastic plate 13.
Can dismantle between connecting seat 12 and the adjustment frock 2 and be connected, adjustment frock 2 has all set firmly connecting plate 22 for four sides, and connecting plate 22 is provided with eight with stopper 131 one-to-one, and eight connecting plate 22 lateral surfaces that carry on the back mutually contact between the medial surface relative with eight elastic plate 13 respectively, and connecting plate 22 surface that carries on the back mutually is seted up and is held stopper 131 male arc spread groove 221.
The implementation principle of the above embodiment is as follows:
after the connecting plate 22 corresponds to the elastic plate 13, the adjusting tool 2 is inserted between the elastic plates 13, the connecting plate 22 exerts an effect on the limiting block 131 to enable the elastic plate 13 to deform until the limiting block 131 is inserted into the arc-shaped connecting groove 221, the elastic plate 13 can limit the connecting plate 22 to be separated from the connecting plate, the adjusting tool 2 and the connecting seat 12 are convenient and quick to disassemble and assemble, and the calibration period is shortened.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The utility model provides a promote temperature and humidity sensor's device of degree of accuracy, includes environmental test case (1), environmental test case (1) includes control unit (11), its characterized in that: the environment test device is characterized in that an adjusting circuit board (21) is arranged in the environment test box (1), the adjusting circuit board (21) is electrically connected with a plurality of temperature sensors (3) which are located in the environment test box (1), the temperature sensors (3) are electrically connected with a memory (31), the temperature sensors (3) are respectively electrically connected with the adjusting circuit board (21), the adjusting circuit board (21) is electrically connected with a processor (4), and the processor (4) is electrically connected with the control unit (11).
2. The device of claim 1, wherein the temperature and humidity sensor comprises: the adjusting circuit board (21) is electrically connected with a display (5), and the display (5) can be used for displaying data information measured by any temperature sensor (3) on the adjusting circuit board (21).
3. The device of claim 1, wherein the temperature and humidity sensor comprises: an adjusting tool (2) is fixedly arranged on the adjusting circuit board (21), a connecting seat (12) is fixedly arranged in the environment test box (1), and the adjusting tool (2) is detachably connected with the connecting seat (12).
4. The device of claim 3, wherein the temperature and humidity sensor comprises: the adjusting tool (2) is characterized in that at least one group of oppositely arranged connecting plates (22) is fixedly arranged on the side surface, and arc-shaped connecting grooves (221) are formed in the opposite surfaces of one group of connecting plates (22);
the connecting seat (12) is fixedly provided with elastic plates (13) which correspond to the connecting plates (22) one by one, the elastic plates (13) are fixedly provided with limiting blocks (131) which can be inserted into the arc-shaped connecting grooves (221), and the limiting blocks (131) limit the relative movement between the elastic plates (13) and the connecting plates (22).
5. The device of claim 1, wherein the temperature and humidity sensor comprises: a connecting cable (6) penetrates through the environmental test chamber (1), the connecting cable (6) is tightly connected with the side wall of the environmental test chamber (1), and the connecting cable (6) is used for adjusting the electric connection between the circuit board (21) and the processor (4);
the adjusting circuit board (21) is arranged in the middle area of the environmental test chamber (1).
6. The device of claim 1, wherein the temperature and humidity sensor comprises: the environmental test chamber (1) comprises a standard temperature sensor (14), a humidity sensor (15), a humidifier (17) and a temperature regulator (16).
7. The device of claim 1, wherein the temperature and humidity sensor comprises: the environmental test chamber (1) further comprises a fan (18).
8. The device of claim 1, wherein the temperature and humidity sensor comprises: the environmental test chamber (1) further comprises a touch screen adjusting unit (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023331669.9U CN213902434U (en) | 2020-12-31 | 2020-12-31 | Device for improving accuracy of temperature and humidity sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023331669.9U CN213902434U (en) | 2020-12-31 | 2020-12-31 | Device for improving accuracy of temperature and humidity sensor |
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| Publication Number | Publication Date |
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| CN213902434U true CN213902434U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023331669.9U Active CN213902434U (en) | 2020-12-31 | 2020-12-31 | Device for improving accuracy of temperature and humidity sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485757A (en) * | 2021-12-15 | 2022-05-13 | 航天科工防御技术研究试验中心 | Test system and method for temperature and humidity sensor |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485757A (en) * | 2021-12-15 | 2022-05-13 | 航天科工防御技术研究试验中心 | Test system and method for temperature and humidity sensor |
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