CN203310570U - Pressure sensor calibration device - Google Patents
Pressure sensor calibration device Download PDFInfo
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- CN203310570U CN203310570U CN2013203954703U CN201320395470U CN203310570U CN 203310570 U CN203310570 U CN 203310570U CN 2013203954703 U CN2013203954703 U CN 2013203954703U CN 201320395470 U CN201320395470 U CN 201320395470U CN 203310570 U CN203310570 U CN 203310570U
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- pressure
- air chamber
- pressure transducer
- pressure sensor
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Abstract
The utility model provides a pressure sensor calibration device including a pressure air pump and an air chamber. The pressure air pump is provided with a positive and negative pressure regulating valve; and the pressure air pump and the air chamber are connected so as to inflate or deflate to the air chamber, so that the air chamber has different positive or negative pressures; a first pressure measuring port and a second pressure measuring port are communicated with the air chamber; the first pressure measuring port is connected with a pressure gauge which is used to test pressure in the air chamber; and the second pressure measuring port is used for connecting a to-be-calibrated pressure sensor, so that a pressure value of the to-be-calibrated pressure sensor is calibrated according to a pressure value of the pressure gauge. The pressure sensor calibration device of the utility model, according to the standard pressure value of the pressure gauge, can repeatedly calibrate the value of the to-be-calibrated pressure sensor, so that the property of the pressure sensor is enabled to match the linear relationship to realize the calibration; the simpleness and convenience are realized; and the existing problem that the pressure sensor in the prior art must be sent to the professional measurement and detection unit for calibration is solved.
Description
Technical field
The utility model relates to collimation technique, relates in particular to a kind of pressure transducer calibration apparatus.
Background technology
In colliery, contain a large amount of flammable explosive gas such as gas, for avoiding occurring the Gas Disaster accident, guarantee the security of coal mining, need to monitor coal mine gas gas, down-hole is equipped with pressure transducer at present, be used under measuring well the force value of methane gas in coal body, pressure transducer can directly demonstrate force value, for the down-hole patrolman, observe, also can output current signal or frequency signal etc., through cable transmission, on the ground, for the ground monitoring personnel, monitor the pressure changing of current down-hole.
But pressure transducer in use for some time, its precision there will be deviation, and the force value of actual pressure and its demonstration is not inconsistent, and therefore, need to regularly calibrate.Present calibrating mode is generally that pressure transducer is disassembled from the pipeline connected, and deliver to professional metering detection unit and calibrate, but this calibrating mode not only affects the cycle of recycling, and the calibration expense is higher.
The utility model content
The utility model provides a kind of pressure transducer calibration apparatus, be used to the calibration impact that solves current pressure transducer, uses, and the higher problem of calibration expense.
The utility model provides a kind of pressure transducer calibration apparatus, comprise pressure air pump and air chamber, on described pressure air pump, be provided with the positive/negative-pressure variable valve, and described pressure air pump is connected with described air chamber, for in described air chamber, inflating or bleeding in described air chamber, so that in described air chamber, have different malleations or negative pressure;
With described air chamber, be communicated with and be provided with the first pressure measurement port and the second pressure measurement port, described the first pressure measurement port is connected with tensimeter, for testing the pressure in described air chamber, described the second pressure measurement port is for connecting the pressure transducer for the treatment of adjustment, so that according to the described force value for the treatment of the pressure transducer of adjustment of described manometric force value adjustment.
In pressure transducer calibration apparatus as above, on described pressure air pump, be provided with the lever of suppressing be used to suppressing.
In pressure transducer calibration apparatus as above, on described air chamber, be provided with the air release that discharges gas in described air chamber.
In pressure transducer calibration apparatus as above, be provided with stop valve between described air chamber and described forcing pump, be used to controlling being communicated with of described forcing pump and described air chamber.
In pressure transducer calibration apparatus as above, be provided with micromatic setting on described air chamber, be used to finely tuning the pressure in described air chamber.
The pressure transducer calibration apparatus that the utility model any embodiment provides, normal pressure value by the reduced pressure table, treating the value of the pressure transducer of adjustment repeatedly adjusts, can make its linear relationship of characteristic conforms of pressure transducer, thereby realize its correction, simple and convenient, solved and in the prior art, pressure transducer has been delivered to professional metering and detected unit and calibrate existing problem.
The accompanying drawing explanation
The front view of the pressure transducer calibration apparatus that Fig. 1 provides for the utility model embodiment;
The vertical view of the pressure transducer calibration apparatus that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of pressure transducer calibration apparatus, as shown in Figures 1 and 2, this pressure transducer calibration apparatus comprises pressure air pump 1 and air chamber 2, on pressure air pump 1, be provided with positive/negative-pressure variable valve 7(Fig. 2), and described pressure air pump 1 is connected with air chamber 2, for to the interior inflation of air chamber 2 or or in air chamber 2, bleed so that in air chamber 2, have different malleations or negative pressure; With air chamber 2, be communicated with and be provided with the first pressure measurement port 3 and the second pressure measurement port 4, on the first pressure measurement port 3, be connected with tensimeter 5, for testing the pressure in air chamber 2, the second pressure measurement port 4 is treated the pressure transducer (pressure transducer 6 shown in the figure dotted line) of adjustment for connection, in order to according to the force value adjustment of tensimeter 5, treat the force value of the pressure transducer 6 of adjustment.
In the present embodiment, as shown in Figures 1 and 2, pressure air pump 1 and air chamber 2 are fixed on worktable A, the first pressure measurement port 3 and the second pressure measurement port 4 by first, are communicated with seat C1 respectively and second a connection seat C2 is arranged on worktable A, by connecting line, be communicated with therebetween, concrete, as shown in Figure 2, pressure air pump 1 is successively by connecting line 14, stop valve 8 and connecting line 15 are connected to air chamber 2, wherein, the stop valve 8 arranged between pressure air pump 1 and air chamber 2 is for being communicated with between controlled pressure air pump 1 and air chamber 2, when pressure air pump 1 stops inflating, can being communicated with by stop valve 8 cut-out pressure air pumps 1 and air chamber 2, make air chamber 2 sealings.Air chamber 2 is communicated with the first Connection Block C1 by connecting line 12, namely with the tensimeter 5 on the first pressure measurement port 3, is communicated with, and air chamber 2 also is communicated with the second Connection Block C2 by connecting line 13, namely with the adjustment pressure transducer 6 for the treatment of on the second pressure measurement port 6, is communicated with.
In the present embodiment, on pressure air pump 1, be provided with and suppress lever 11 be used to what suppress, suppress lever 11 by operation, and the positive/negative-pressure variable valve 7 arranged on adjustment pressure air pump 1, to regulate the direction of air-flow, can in air chamber 2, inflate or bleed in air chamber 2, make air chamber 2 have malleation or negative pressure.In the present embodiment by repeatedly suppressing, make the gas in air chamber 2 have different malleations or negative pressure value, according to the force value adjustment of air chamber shown on tensimeter 52 interior gases, be connected to the force value of the pressure transducer 6 on the second test interface 4, wherein, the normal pressure value of force value for calibrating that tensimeter 5 is shown, for the measured value that makes pressure transducer 6 accurate, must carry out the adjustment contrast by repeatedly suppressing the different force value of input, in the present embodiment, adjusting number of times is no less than three times, by according to the normal pressure value, repeatedly adjust the force value of pressure transducer 6, its error that departs from its linear relationship in use of recoverable, make its distinctive linear relationship of characteristic conforms of pressure transducer 6, thereby the force value that it is recorded is accurate.
In the present embodiment, air release 10 also is set on air chamber 2, be used to discharging the gas in air chamber 2, with decompression or pressure release.
In the present embodiment, on air chamber 2, be provided with micromatic setting 9, be used to finely tuning the pressure in air chamber 2.At this, micromatic setting 9 is specially the fine setting swing arm, the volume in rotary fine adjustment swing arm capable of regulating air chamber 2, thereby the pressure of adjustment air chamber 2 interior gases.After pressure air pump 1 stops suppressing to air chamber 2, with force value shown on tensimeter 5 that air chamber 2 is communicated with, it not often round values, often there is so certain error during reading out data, in order to reduce error, can make the pressure data on tensimeter 5 be shown as integer, at this moment, can be by the fine setting swing arm, increase or reduce the gas volume in air chamber 2, but the while is Combined with Radiotherapy air valve 10 also, change the pressure of air chamber 2 interior gases, making the shown pressure data of tensimeter 5 is integer, reduces its value of reading error as far as possible.
The pressure transducer calibration apparatus that the present embodiment provides, by according to manometric normal pressure value, repeatedly adjust the value of the pressure transducer for the treatment of adjustment, can make its linear relationship of characteristic conforms of pressure transducer, thereby realize its correction, simple and convenient, solved and in the prior art, pressure transducer has been delivered to professional metering and detected unit and calibrate existing problem.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. pressure transducer calibration apparatus, it is characterized in that, comprise pressure air pump and air chamber, on described pressure air pump, be provided with the positive/negative-pressure variable valve, and described pressure air pump is connected with described air chamber, for in described air chamber, inflating or bleeding in described air chamber, so that in described air chamber, have different malleations or negative pressure;
With described air chamber, be communicated with and be provided with the first pressure measurement port and the second pressure measurement port, described the first pressure measurement port is connected with tensimeter, for testing the pressure in described air chamber, described the second pressure measurement port is for connecting the pressure transducer for the treatment of adjustment, so that according to the described force value for the treatment of the pressure transducer of adjustment of described manometric force value adjustment.
2. pressure transducer calibration apparatus according to claim 1, is characterized in that, on described pressure air pump, is provided with the lever of suppressing be used to suppressing.
3. pressure transducer calibration apparatus according to claim 1, is characterized in that, on described air chamber, is provided with the air release that discharges gas in described air chamber.
4. pressure transducer calibration apparatus according to claim 1, is characterized in that, is provided with stop valve between described air chamber and described forcing pump, be used to controlling being communicated with of described forcing pump and described air chamber.
5. according to the arbitrary described pressure transducer calibration apparatus of claim 1-4, it is characterized in that, on described air chamber, be provided with micromatic setting, be used to finely tuning the pressure in described air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203954703U CN203310570U (en) | 2013-07-03 | 2013-07-03 | Pressure sensor calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203954703U CN203310570U (en) | 2013-07-03 | 2013-07-03 | Pressure sensor calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310570U true CN203310570U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203954703U Withdrawn - After Issue CN203310570U (en) | 2013-07-03 | 2013-07-03 | Pressure sensor calibration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203310570U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN107642680A (en) * | 2016-07-22 | 2018-01-30 | 北京康斯特仪表科技股份有限公司 | A kind of intelligent miniature vacuum and pressurization air source module |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN112254877A (en) * | 2020-09-03 | 2021-01-22 | 河南牛帕力学工程研究院 | Calibrating device of building element testing machine |
-
2013
- 2013-07-03 CN CN2013203954703U patent/CN203310570U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364137A (en) * | 2013-07-03 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Pressure sensor adjusting device |
| CN103364137B (en) * | 2013-07-03 | 2015-07-29 | 淮南矿业(集团)有限责任公司 | Pressure transducer calibration apparatus |
| CN107642680A (en) * | 2016-07-22 | 2018-01-30 | 北京康斯特仪表科技股份有限公司 | A kind of intelligent miniature vacuum and pressurization air source module |
| CN107642680B (en) * | 2016-07-22 | 2019-08-23 | 北京康斯特仪表科技股份有限公司 | A kind of intelligent miniature vacuum and pressurization air source module |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN112254877A (en) * | 2020-09-03 | 2021-01-22 | 河南牛帕力学工程研究院 | Calibrating device of building element testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20150729 |
|
| RGAV | Abandon patent right to avoid regrant |