CN106404281A - Simple high-precision pressure transmitter verification device and implementation method thereof - Google Patents
Simple high-precision pressure transmitter verification device and implementation method thereof Download PDFInfo
- Publication number
- CN106404281A CN106404281A CN201611045716.9A CN201611045716A CN106404281A CN 106404281 A CN106404281 A CN 106404281A CN 201611045716 A CN201611045716 A CN 201611045716A CN 106404281 A CN106404281 A CN 106404281A
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- Prior art keywords
- pressure
- interface
- valuator
- standard
- pressure transmitter
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- 238000012795 verification Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 8
- 238000009434 installation Methods 0.000 claims abstract 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a simple high-precision pressure transmitter verification device. The device includes a frame, a needle type emptying valve, a finely-adjustable corrugated membrane box, a standard air pressure output interface, a standard gauge interface, a compressed air input interface, a valuator, a pressure stop valve and a three-way connector. The simple high-precision pressure transmitter verification device is characterized in that the device also includes an installation fixing hole, the needle type emptying valve, the finely-adjustable corrugated membrane box, the standard air pressure output interface, the standard pressure gauge interface, the compressed air input interface, the valuator and the pressure stop valve are arranged on the frame, when the verification device is utilized to perform verification, the standard pressure output interface is connected with a pressure transmitter to be verified, the standard pressure gauge interface is connected with a standard meter, the compressed air input interface is connected with a compressed air source, then the valuator is adjusted, so that output pressure of the valuator is appropriately higher than the upper limit of a measuring range of the pressure transmitter to be verified, through operation of opening and closing the pressure stop valve and the needle type emptying valve, a reference standard pressure gauge displays adjustment of pressure to rise or fall to near a required pressure value, and then the adjustable corrugated membrane box is adjusted, so that a display value of the standard pressure gauge is precise to the required pressure value. Due to adoption of the abovementioned technical scheme, the simple high-precision pressure transmitter verification device has the beneficial effects that using the device to perform high-precision pressure transmitter verification can effectively utilize existing standard equipment, and achieves the purpose of realizing high-precision pressure transmitter verification relatively economically.
Description
Technical field
The invention belongs to teaching instrument and equipment field, it is related to a kind of simple high-precision pressure transmitter calibration equipment and in fact
Existing method.
Background technology
At present, known pressure transmitter calibration equipment has two types, and the first is compressed air source, pneumatic definite value
Device, precision pressure gauge, accurate voltage table, precision resistance etc. is combined into corresponding pressure transmitter check system, and the method is main
By pneumatic setter, adjust the size of normal pressure with reference to precision pressure gauge.The method is with low cost, due to valuator precision
Limited, therefore be used for the normal pressures transmitter verification that accuracy class is less than 1.0.Second is the complete automatic school of comprehensive integration
Experiment device, device itself can automatically generate standard pressure generator, high precision, install and connect all easily, but cost and maintenance expense
With higher, it is used for solid financial strength large enterprise.
Content of the invention
The purpose of the present invention is for above-mentioned the deficiencies in the prior art, provides one kind can be realized with a low cost high-precision pressure and becomes
Send device calibration equipment and its implementation.
For achieving the above object, the technical solution used in the present invention is as follows.
A kind of simple high-precision pressure transmitter calibration equipment, including framework, needle-like atmospheric valve, fine-tuning ripple sylphon,
Standard pressure output interface, master gauge interface, compressed air input interface, valuator, pressure stop valve, threeway connects
Device.
Described aciculiform atmospheric valve, fine-tuning ripple sylphon, standard pressure output interface, master gauge interface, compression
Air input interface, valuator, pressure stop valve, it is arranged on described framework.
Further, described compressed air input interface is connected with described valuator.
Further, described valuator is connected with described pressure stop valve.
Further, described pressure stop valve is connected with described three-way connector.
Further, described three-way connector is connected with described master gauge interface.
Further, described three-way connector is connected with described fine-tuning ripple sylphon.
Further, described fine-tuning ripple sylphon is connected with described standard pressure output interface.
Further, described fine-tuning ripple sylphon is connected with described aciculiform atmospheric valve.
Present invention also offers a kind of method of calibration that can realize high accuracy pressure transmitter.Comprise the following steps：
1）Normal pressure output interface connects verified pressure transmitter.
2）Master gauge interface connection standard table.
3）Compressed air input port connects compressed air source.
4）Adjustment valuator, makes valuator output pressure be suitably above the verified pressure transmitter range upper limit.
5）Close aciculiform atmospheric valve, show that according to master gauge opening pressure stop valve adjustment pressure rises to required pressure
Near force value.Adjust adjustable ripple sylphon, make master gauge show value be accurate to desirable pressure value.
6）Closing presure stop valve, shows according to master gauge and opens aciculiform atmospheric valve adjustment pressure drop to desirable pressure
Near value.Adjust adjustable ripple sylphon, make master gauge show value be accurate to desirable pressure value.
Further, repeating said steps 5）, 6）Can be when verifying the different accurate pressures required for pressure transmitter
Value.
Due to adopting technique scheme, the invention has the beneficial effects as follows：Carry out high-precision pressure pick-up using the present invention
Device verifies, and can obtain high-precision criteria check pressure, and energy effectively utilizes existing standard equipment, reaches economical and practical mesh
's.
Brief description
Fig. 1 is simple high-precision pressure transmitter calibration equipment overall structure diagram of the present invention.
In figure：1 is framework, and 2 is to install fixing hole, and 3 is needle-like atmospheric valve, and 4 is fine-tuning ripple sylphon, and 5 is Standard Gases
Pressure output interface, 6 is master gauge interface, and 7 is compressed air input interface, and 8 is valuator, and 9 is pressure stop valve, and 10 are
Three-way connector.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings and embodiment pair
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and without
In the restriction present invention.
Simple high-precision pressure transmitter calibration equipment such as Fig. 1 of the present invention, including framework, needle-like atmospheric valve, fine-tuning ripple
Stricture of vagina bellows, standard pressure output interface, master gauge interface, compressed air input interface, valuator, pressure stop valve, three
Connectors.
Described aciculiform atmospheric valve, fine-tuning ripple sylphon, standard pressure output interface, master gauge interface, compression
Air input interface, valuator, pressure stop valve, it is arranged on described framework.
Described compressed air input interface is connected with described valuator.Described valuator is connected with described pressure stop valve
Connect.Described pressure stop valve is connected with described three-way connector.Described three-way connector and described master gauge interface phase
Connect.Described three-way connector is connected with described fine-tuning ripple sylphon.Described fine-tuning ripple sylphon and described Standard Gases
Pressure output interface is connected.Described fine-tuning ripple sylphon is connected with described aciculiform atmospheric valve.
Fig. 1 is simple high-precision pressure transmitter calibration equipment overall structure diagram of the present invention.
In figure：1 is framework, and 2 is to install fixing hole, and 3 is needle-like atmospheric valve, and 4 is fine-tuning ripple sylphon, and 5 is Standard Gases
Pressure output interface, 6 is master gauge interface, and 7 is compressed air input interface, and 8 is valuator, and 9 is pressure stop valve, and 10 are
Three-way connector.
When carrying out realizing high accuracy pressure transmitter verification using the present invention, first normal pressure output interface is connected quilt
Verification pressure transmitter, master gauge interface connection standard table, compressed air input port connects compressed air source.Then adjust
Valuator, makes valuator output pressure be suitably above the verified pressure transmitter range upper limit.Close aciculiform atmospheric valve, according to mark
Quasi- pressure gauge shows that opening pressure stop valve adjustment pressure rises near desirable pressure value.Adjust adjustable ripple sylphon, make mark
Quasi- pressure gauge show value is accurate to desirable pressure value.Closing presure stop valve, shows according to master gauge and opens aciculiform atmospheric valve
Adjustment pressure drop is near desirable pressure value.Adjust adjustable ripple sylphon, make master gauge show value be accurate to required pressure
Force value.
Due to adopting technique scheme, the invention has the beneficial effects as follows：Carry out high-precision pressure pick-up using the present invention
Device verifies, energy effectively utilizes existing standard equipment, reaches the purpose realizing high accuracy pressure transmitter verification of relatively economical.
The foregoing is only presently preferred embodiments of the present invention, be not used for limiting the practical range of the present invention；If do not taken off
From the spirit and scope of the present invention, the present invention is modified or equivalent, all should cover in the claims in the present invention
In the middle of protection domain.
Claims (9)
1. a kind of simple high-precision pressure transmitter calibration equipment, including framework, needle-like atmospheric valve, fine-tuning ripple sylphon, mark
Quasi- air pressure output interface, master gauge interface, compressed air input interface, valuator, pressure stop valve, three-way connector；
Characterized by further comprising installation fixing hole, described aciculiform atmospheric valve, fine-tuning ripple sylphon, standard pressure output interface,
Master gauge interface, compressed air input interface, valuator, pressure stop valve, it is arranged on described framework,
Further, described compressed air input interface is connected with described valuator,
Further, described valuator is connected with described pressure stop valve,
Further, described pressure stop valve is connected with described three-way connector,
Further, described three-way connector is connected with described master gauge interface,
Further, described three-way connector is connected with described fine-tuning ripple sylphon,
Further, described fine-tuning ripple sylphon is connected with described standard pressure output interface.
2. according to claim 1 it is characterised in that there is installation fixing hole described framework both sides.
3. according to claim 1 and 2 it is characterised in that having on described framework and described pressure input interface.
4. simple high-precision pressure transmitter calibration equipment according to claim 3 is it is characterised in that described compressed air
Input interface is connected with described valuator.
5. simple high-precision pressure transmitter calibration equipment according to claim 4 it is characterised in that described valuator with
Described pressure stop valve is connected.
6. simple high-precision pressure transmitter calibration equipment according to claim 5 is it is characterised in that described pressure ends
Valve is connected with described adjustable ripple sylphon.
7. simple high-precision pressure transmitter calibration equipment according to claim 6 is it is characterised in that described adjustable ripple
Bellows phase is connected with described standard scale interface.
8. the simple high-precision pressure transmitter calibration equipment described in a kind of utilization any one of claim 1-6 and its realization side
Method is it is characterised in that comprise the following steps：
1）Normal pressure output interface connects verified pressure transmitter,
2）Master gauge interface connection standard table,
3）Compressed air input port connects compressed air source,
4）Adjustment valuator, makes valuator output pressure be suitably above the verified pressure transmitter range upper limit,
5）Close aciculiform atmospheric valve, show that according to master gauge opening pressure stop valve adjustment pressure rises to desirable pressure value
Near,
Adjust adjustable ripple sylphon, make master gauge show value be accurate to desirable pressure value,
6）Closing presure stop valve, show according to master gauge open aciculiform atmospheric valve adjustment pressure drop attached to desirable pressure value
Closely,
Adjust adjustable ripple sylphon, make master gauge show value be accurate to desirable pressure value,
Further, repeating said steps 5）, 6）Can be when verifying the different accurate pressure values required for pressure transmitter.
9. simple high-precision pressure transmitter calibration equipment according to claim 7 and its implementation it is characterised in that：
Different accurate pressure values required for verification pressure transmitter are provided by airtight air in adjustable ripple sylphon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045716.9A CN106404281A (en) | 2016-11-24 | 2016-11-24 | Simple high-precision pressure transmitter verification device and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045716.9A CN106404281A (en) | 2016-11-24 | 2016-11-24 | Simple high-precision pressure transmitter verification device and implementation method thereof |
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| Publication Number | Publication Date |
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| CN106404281A true CN106404281A (en) | 2017-02-15 |
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| CN201611045716.9A Pending CN106404281A (en) | 2016-11-24 | 2016-11-24 | Simple high-precision pressure transmitter verification device and implementation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900426A (en) * | 2019-03-27 | 2019-06-18 | 中国化学工程第三建设有限公司 | Verify the accurate method of low pressure gauge pressure |
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|---|---|---|---|---|
| GB1332545A (en) * | 1971-06-10 | 1973-10-03 | Vnii Komiteta Standartov Mer I | Apparatus for testing pneumatic pressure transmitters |
| CN2271709Y (en) * | 1995-06-21 | 1997-12-31 | 北京远东仪表有限公司 | Central diaphragm automatic tension bridle |
| JP2003057141A (en) * | 2001-08-09 | 2003-02-26 | Nishikawa Keisoku Kk | Pressure calibrating apparatus |
| CN2901271Y (en) * | 2006-06-14 | 2007-05-16 | 中国石油天然气集团公司 | Flange diaphragm sealed liquid level and pressure transmitter |
| WO2011009476A1 (en) * | 2009-07-24 | 2011-01-27 | Siemens Aktiengesellschaft | Calibrating device for a pressure transducer |
| CN102095547A (en) * | 2010-11-25 | 2011-06-15 | 苏州工业园区广福汽保机电设备有限公司 | Digital manometer for accurately measuring pressure to be measured |
| CN202471349U (en) * | 2012-01-17 | 2012-10-03 | 山西太钢不锈钢股份有限公司 | Rapid connecting device |
| CN203881412U (en) * | 2014-06-10 | 2014-10-15 | 浙江中宁硅业有限公司 | Device for fast calibrating differential pressure type liquidometer on working condition site |
| CN204740090U (en) * | 2015-05-29 | 2015-11-04 | 杜宪杰 | Membrane box -shaped pressure measurement |
| CN204988624U (en) * | 2015-09-25 | 2016-01-20 | 上海精普机电科技有限公司 | Precision pressure gauge |
-
2016
- 2016-11-24 CN CN201611045716.9A patent/CN106404281A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1332545A (en) * | 1971-06-10 | 1973-10-03 | Vnii Komiteta Standartov Mer I | Apparatus for testing pneumatic pressure transmitters |
| CN2271709Y (en) * | 1995-06-21 | 1997-12-31 | 北京远东仪表有限公司 | Central diaphragm automatic tension bridle |
| JP2003057141A (en) * | 2001-08-09 | 2003-02-26 | Nishikawa Keisoku Kk | Pressure calibrating apparatus |
| CN2901271Y (en) * | 2006-06-14 | 2007-05-16 | 中国石油天然气集团公司 | Flange diaphragm sealed liquid level and pressure transmitter |
| WO2011009476A1 (en) * | 2009-07-24 | 2011-01-27 | Siemens Aktiengesellschaft | Calibrating device for a pressure transducer |
| CN102095547A (en) * | 2010-11-25 | 2011-06-15 | 苏州工业园区广福汽保机电设备有限公司 | Digital manometer for accurately measuring pressure to be measured |
| CN202471349U (en) * | 2012-01-17 | 2012-10-03 | 山西太钢不锈钢股份有限公司 | Rapid connecting device |
| CN203881412U (en) * | 2014-06-10 | 2014-10-15 | 浙江中宁硅业有限公司 | Device for fast calibrating differential pressure type liquidometer on working condition site |
| CN204740090U (en) * | 2015-05-29 | 2015-11-04 | 杜宪杰 | Membrane box -shaped pressure measurement |
| CN204988624U (en) * | 2015-09-25 | 2016-01-20 | 上海精普机电科技有限公司 | Precision pressure gauge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900426A (en) * | 2019-03-27 | 2019-06-18 | 中国化学工程第三建设有限公司 | Verify the accurate method of low pressure gauge pressure |
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Application publication date: 20170215 |