CN103364137A - Pressure sensor adjusting device - Google Patents
Pressure sensor adjusting device Download PDFInfo
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- CN103364137A CN103364137A CN2013102787178A CN201310278717A CN103364137A CN 103364137 A CN103364137 A CN 103364137A CN 2013102787178 A CN2013102787178 A CN 2013102787178A CN 201310278717 A CN201310278717 A CN 201310278717A CN 103364137 A CN103364137 A CN 103364137A
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- pressure transducer
- pressure sensor
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Abstract
The invention provides a pressure sensor adjusting device, which comprises a pressure air pump and an air chamber, wherein the pressure air pump is provided with a positive-negative pressure regulating valve; the pressure air pump is connected with the air chamber, and is used for inflating or deflating in the air chamber, so that the air chamber has different positive pressures 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 meter, and is used for testing the pressure in the air chamber; and the second pressure measuring port is used for being connected with a pressure sensor to be adjusted so as to adjust the pressure value of the pressure sensor to be adjusted according to the pressure value of the pressure meter. According to the pressure sensor adjusting device provided by the invention, the value of the pressure sensor to be adjusted is adjusted repeatedly according to the standard pressure value of the pressure meter, and the characteristics of the pressure sensor can be consistent with a linear relation, so that correction is realized easily and conveniently, and problems existing during adjustment of the pressure sensor brought to a professional metering detection unit in the prior art is solved.
Description
Technical field
The present invention relates to collimation technique, relate in particular to a kind of pressure transducer calibration apparatus.
Background technology
Contain a large amount of flammable explosive gas such as gas in the colliery, for avoiding occuring the Gas Disaster accident, guarantee the security of coal mining, need to monitor coal mine gas gas, the down-hole is equipped with pressure transducer at present, be used under the measuring well force value of methane gas in the coal body, pressure transducer can directly demonstrate force value, observe for the down-hole patrolman, also can output current signal or frequency signal etc., to on the ground, monitor the pressure changing of current down-hole through cable transmission for the ground monitoring personnel.
But pressure transducer in use for some time, and deviation can appear in its precision, and the force value of actual pressure and its demonstration is not inconsistent, and therefore, need to regularly calibrate.Present calibrating mode generally is that pressure transducer is disassembled from the pipeline that connects, and the metering of delivering to specialty detects unit and calibrates, but this calibrating mode not only affects the cycle of recycling, and the calibration expense is higher.
Summary of the invention
The invention provides a kind of pressure transducer calibration apparatus, be used for solving the calibration impact use of present pressure transducer, and the higher problem of calibration expense.
The invention provides a kind of pressure transducer calibration apparatus, comprise pressure air pump and air chamber, be provided with the positive/negative-pressure variable valve on the described pressure air pump, and described pressure air pump links to each other with described air chamber, be used in described air chamber, inflating or in described air chamber, bleeding, so that have different malleations or negative pressure in the described air chamber;
Be communicated with described air chamber 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, be used for testing the pressure in the described air chamber, described the second pressure measurement port is used 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.
The pressure transducer calibration apparatus that any embodiment of the present invention 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, solve the metering detection unit that in the prior art pressure transducer is delivered to specialty and calibrated existing problem.
Description of drawings
The front view of the pressure transducer calibration apparatus that Fig. 1 provides for the embodiment of the invention;
The vertical view of the pressure transducer calibration apparatus that Fig. 2 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention 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, be provided with positive/negative-pressure variable valve 7(Fig. 2 on the pressure air pump 1), and described pressure air pump 1 links to each other with air chamber 2, be used for to air chamber 2 interior inflations or or in air chamber 2, bleed so that have different malleations or negative pressure in the air chamber 2; Be communicated with air chamber 2 and be provided with the first pressure measurement port 3 and the second pressure measurement port 4, be connected with tensimeter 5 on the first pressure measurement port 3, be used for the pressure in the test air chamber 2, the second pressure measurement port 4 is used for connecting the pressure transducer (pressure transducer 6 shown in the figure dotted line) for the treatment of adjustment, in order to treat the force value of the pressure transducer 6 of adjustment according to the force value adjustment of tensimeter 5.
In the present embodiment, as shown in Figures 1 and 2, pressure air pump 1 and air chamber 2 are fixed on the worktable A, the first pressure measurement port 3 and the second pressure measurement port 4 are communicated with seat C1 by first respectively and second a connection seat C2 is arranged on the worktable A, be communicated with by connecting line 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 that arranges between pressure air pump 1 and air chamber 2 is used for being communicated with between controlled pressure air pump 1 and the air chamber 2, when pressure air pump 1 stops to inflate, can by being communicated with of stop valve 8 cut-out pressure air pumps 1 and air chamber 2, air chamber 2 be sealed.Air chamber 2 is communicated with the first Connection Block C1 by connecting line 12, namely is communicated with tensimeter 5 on the first pressure measurement port 3, and air chamber 2 also passes through connecting line 13 and is communicated with the second Connection Block C2, namely is communicated with the adjustment pressure transducer 6 for the treatment of on the second pressure measurement port 6.
In the present embodiment, be provided with on the pressure air pump 1 be used to what suppress and suppress lever 11, suppress lever 11 by operation, and the positive/negative-pressure variable valve 7 that arranges on the adjustment pressure air pump 1, regulating the direction of air-flow, can inflate in the air chamber 2 or in air chamber 2, bleed, make air chamber 2 have malleation or negative pressure.In the present embodiment by repeatedly suppressing, make the gas in the air chamber 2 have different malleations or negative pressure value, be connected to the force value of the pressure transducer 6 on the second test interface 4 according to the force value adjustment of air chamber shown on the tensimeter 52 interior gases, wherein, tensimeter 5 shown force value are the normal pressure value of calibration, 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 is set also on the air chamber 2, is used for discharging the gas in the air chamber 2, with decompression or pressure release.
In the present embodiment, be provided with micromatic setting 9 on the air chamber 2, be used for the pressure in the fine setting air chamber 2.At this, micromatic setting 9 is specially the fine setting swing arm, the volume in the 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 to suppress to air chamber 2, often not round values with force value shown on the tensimeter 5 that air chamber 2 is communicated with, often there is so certain error during reading out data, in order to reduce error, can make the pressure data on the tensimeter 5 be shown as integer, at this moment, can be by the fine setting swing arm, increase or reduce gas volume in the air chamber 2, but the while is Combined with Radiotherapy air valve 10 also, change the pressure of air chamber 2 interior gases, making tensimeter 5 shown pressure datas 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, solve the metering detection unit that in the prior art pressure transducer is delivered to specialty and calibrated existing problem.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps 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 various embodiments of the present invention technical scheme.
Claims (5)
1. pressure transducer calibration apparatus, it is characterized in that, comprise pressure air pump and air chamber, be provided with the positive/negative-pressure variable valve on the described pressure air pump, and described pressure air pump links to each other with described air chamber, be used in described air chamber, inflating or in described air chamber, bleeding, so that have different malleations or negative pressure in the described air chamber;
Be communicated with described air chamber 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, be used for testing the pressure in the described air chamber, described the second pressure measurement port is used 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, is provided be used to the lever of suppressing of suppressing on the described pressure air pump.
3. pressure transducer calibration apparatus according to claim 1 is characterized in that, is provided with the air release that discharges gas in the described air chamber on the 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 the described forcing pump, is used for controlling being communicated with of described forcing pump and described air chamber.
5. arbitrary described pressure transducer calibration apparatus is characterized in that according to claim 1-4, is provided with micromatic setting on the described air chamber, is used for finely tuning the pressure in the described air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278717.8A CN103364137B (en) | 2013-07-03 | 2013-07-03 | Pressure transducer calibration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310278717.8A CN103364137B (en) | 2013-07-03 | 2013-07-03 | Pressure transducer calibration apparatus |
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| Publication Number | Publication Date |
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| CN103364137A true CN103364137A (en) | 2013-10-23 |
| CN103364137B CN103364137B (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310278717.8A Active CN103364137B (en) | 2013-07-03 | 2013-07-03 | Pressure transducer calibration apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101461A (en) * | 2014-06-05 | 2014-10-15 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test device |
| CN109855799A (en) * | 2019-03-12 | 2019-06-07 | 中国矿业大学 | A kind of gas pressure calibrating installation of gas-vapor mix |
| CN111693210A (en) * | 2020-07-01 | 2020-09-22 | 陕西省计量科学研究院 | Siphon type negative pressure alternating test method |
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| JPS61277030A (en) * | 1985-06-03 | 1986-12-08 | Hitachi Ltd | Apparatus for calibrating vacuum gauge |
| CN2101229U (en) * | 1991-08-14 | 1992-04-08 | 福建省计量科学技术研究所 | Portable multifunction checker for manometer and vacuumometer |
| CN2440207Y (en) * | 1999-12-14 | 2001-07-25 | 林晓铭 | Gas-liquid two-phase medium pressure checking device |
| CN201170748Y (en) * | 2007-02-06 | 2008-12-24 | 刘承荣 | Multifunctional pressure vacuum checkout device |
| US20090283068A1 (en) * | 2008-05-15 | 2009-11-19 | William L Willison | Fuel filter assembly with pressure sending unit |
| CN202547864U (en) * | 2012-01-19 | 2012-11-21 | 中国航天员科研训练中心 | Portable detector for gas pressure gage |
| CN203310570U (en) * | 2013-07-03 | 2013-11-27 | 淮南矿业(集团)有限责任公司 | Pressure sensor calibration device |
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2013
- 2013-07-03 CN CN201310278717.8A patent/CN103364137B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61167897A (en) * | 1985-01-21 | 1986-07-29 | 株式会社東芝 | Heat exchanger for removing decay heat of core |
| JPS61277030A (en) * | 1985-06-03 | 1986-12-08 | Hitachi Ltd | Apparatus for calibrating vacuum gauge |
| CN2101229U (en) * | 1991-08-14 | 1992-04-08 | 福建省计量科学技术研究所 | Portable multifunction checker for manometer and vacuumometer |
| CN2440207Y (en) * | 1999-12-14 | 2001-07-25 | 林晓铭 | Gas-liquid two-phase medium pressure checking device |
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| US20090283068A1 (en) * | 2008-05-15 | 2009-11-19 | William L Willison | Fuel filter assembly with pressure sending unit |
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| CN203310570U (en) * | 2013-07-03 | 2013-11-27 | 淮南矿业(集团)有限责任公司 | Pressure sensor calibration device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101461A (en) * | 2014-06-05 | 2014-10-15 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test device |
| CN104101461B (en) * | 2014-06-05 | 2016-05-04 | 珠海市运泰利自动化设备有限公司 | Pressure sensor negative pressure simulation test equipment |
| CN109855799A (en) * | 2019-03-12 | 2019-06-07 | 中国矿业大学 | A kind of gas pressure calibrating installation of gas-vapor mix |
| CN111693210A (en) * | 2020-07-01 | 2020-09-22 | 陕西省计量科学研究院 | Siphon type negative pressure alternating test method |
| CN111693210B (en) * | 2020-07-01 | 2021-08-27 | 陕西省计量科学研究院 | Siphon type negative pressure alternating test method |
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| Publication number | Publication date |
|---|---|
| CN103364137B (en) | 2015-07-29 |
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