CN110763382A - Pressure transmitter - Google Patents
Pressure transmitter Download PDFInfo
- Publication number
- CN110763382A CN110763382A CN201911110297.6A CN201911110297A CN110763382A CN 110763382 A CN110763382 A CN 110763382A CN 201911110297 A CN201911110297 A CN 201911110297A CN 110763382 A CN110763382 A CN 110763382A
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- CN
- China
- Prior art keywords
- pressure
- signal
- comparator
- conversion device
- average value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure transmitter, which is provided with a plurality of membrane boxes, and also comprises a signal conversion device and a comparator, wherein the signal output end of each membrane box is respectively connected with the signal input end of the signal conversion device, and the signal output end of the signal conversion device is connected with the signal input end of the comparator; the signal conversion device can respectively receive the pressure analog signals transmitted by the plurality of bellows and respectively convert the pressure analog signals into pressure digital signals; the comparator is used for comparing each pressure digital signal with the preset pressure signal average value, when the error value between a certain pressure digital signal and the preset pressure signal average value is larger than the preset error value, the comparator marks the diaphragm capsule corresponding to the pressure digital signal as an early warning diaphragm capsule, and takes the average value of other pressure digital signals for transmission. The invention can accurately measure and transmit the real pressure of the measured medium.
Description
Technical Field
The invention relates to a pressure transmitter.
Background
At present, when parameters such as medium pressure and the like are measured, a diaphragm capsule transmitter measuring device is mainly adopted, pressure signals output by a diaphragm capsule self directly influence the precision of a measured medium measuring result, and a single diaphragm capsule is mainly adopted by a pressure transmitter in the prior art, so that the accuracy of the transmitter can be directly influenced when the diaphragm capsule is damaged, and measurement misalignment is caused to cause measurement deviation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pressure transmitter which can relatively accurately measure the pressure of a measured medium and transmit a pressure signal of the measured medium even if a certain diaphragm box is damaged.
In order to solve the technical problem, the pressure transmitter provided by the invention is provided with a plurality of membrane boxes, and further comprises a signal conversion device and a comparator, wherein the signal output end of each membrane box is respectively connected with the signal input end of the signal conversion device, and the signal output end of the signal conversion device is connected with the signal input end of the comparator; the signal conversion device can respectively receive the pressure analog signals transmitted by the plurality of bellows and respectively convert the pressure analog signals into pressure digital signals; the comparator is used for comparing each pressure digital signal with the preset pressure signal average value, when the error value between a certain pressure digital signal and the preset pressure signal average value is larger than the preset error value, the comparator marks the diaphragm capsule corresponding to the pressure digital signal as an early warning diaphragm capsule, and takes the average value of other pressure digital signals for transmission.
By adopting the pressure transmitter with the structure, when a certain diaphragm capsule is damaged to cause larger error of a measuring result, the comparator can mark the diaphragm capsule as an early warning diaphragm capsule, and the average value of the pressure digital signals of other diaphragm capsules is taken for transmission, so that the real pressure of a measured medium can be relatively accurately measured and transmitted.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural component diagram of a pressure transmitter of the present invention.
FIG. 2 is a flow chart of a computer program involved in a pressure transmitter of the present invention.
Detailed Description
Referring to fig. 1 and 2, the pressure transmitter of the present invention comprises a plurality of bellows 1, a signal conversion device 2 and a comparator 3, wherein a signal output end of each bellows is connected with a signal input end of the signal conversion device, and a signal output end of the signal conversion device is connected with a signal input end of the comparator; the signal conversion device 2 can respectively receive the pressure analog signals transmitted by the plurality of bellows 1 and respectively convert the pressure analog signals into pressure digital signals; the comparator 3 is used for comparing each pressure digital signal with the preset pressure signal average value, when the error value between a certain pressure digital signal and the preset pressure signal average value is greater than the preset error value, the comparator 3 marks the capsule corresponding to the pressure digital signal as an early warning capsule, and takes the average value of other pressure digital signals for transmission.
Claims (1)
1. A pressure transmitter, characterized by: the device is provided with a plurality of membrane boxes (1), and also comprises a signal conversion device (2) and a comparator (3), wherein the signal output end of each membrane box is respectively connected with the signal input end of the signal conversion device, and the signal output end of the signal conversion device is connected with the signal input end of the comparator; the signal conversion device (2) can respectively receive the pressure analog signals transmitted by the plurality of membrane boxes (1) and respectively convert the pressure analog signals into pressure digital signals; the comparator (3) is used for comparing each pressure digital signal with the preset pressure signal average value, when the error value between a certain pressure digital signal and the preset pressure signal average value is larger than the preset error value, the comparator (3) marks the diaphragm capsule corresponding to the pressure digital signal as an early warning diaphragm capsule, and takes the average value of other pressure digital signals for transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911110297.6A CN110763382A (en) | 2019-11-14 | 2019-11-14 | Pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911110297.6A CN110763382A (en) | 2019-11-14 | 2019-11-14 | Pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110763382A true CN110763382A (en) | 2020-02-07 |
Family
ID=69338121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911110297.6A Pending CN110763382A (en) | 2019-11-14 | 2019-11-14 | Pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110763382A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545820A (en) * | 2009-05-13 | 2009-09-30 | 广州中船龙穴造船有限公司 | Comprehensive test-bed |
| DE502006007335D1 (en) * | 2006-11-11 | 2010-08-12 | Mettler Toledo Ag | Method for monitoring and / or determining the state of a force measuring device and force measuring device |
| CN103162893A (en) * | 2013-03-15 | 2013-06-19 | 安徽电子科学研究所 | Multi-component smart pressure transmitter |
| CN203214051U (en) * | 2012-12-24 | 2013-09-25 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Anti-interference pressure transmitter |
| CN203455136U (en) * | 2013-09-02 | 2014-02-26 | 美的集团股份有限公司 | Electric pressure cooker and fault detection device thereof |
| CN203587284U (en) * | 2013-11-30 | 2014-05-07 | 长庆石油勘探局技术监测中心 | Pointer type pressure gage batch calibration device |
| CN104483062A (en) * | 2014-12-23 | 2015-04-01 | 中国电子科技集团公司第四十九研究所 | High-reliability redundancy differential pressure sensor |
| CN105381554A (en) * | 2015-12-10 | 2016-03-09 | 南京正泽科技有限公司 | Double-sensor pressure monitoring system for respirator |
| CN105699009A (en) * | 2014-11-25 | 2016-06-22 | 中国科学院沈阳自动化研究所 | Difference value comparison technique-based capacitive pressure sensor fault diagnosis system and method |
| CN107764480A (en) * | 2017-11-24 | 2018-03-06 | 广东菲柯特电子科技有限公司 | Air pressure test system |
-
2019
- 2019-11-14 CN CN201911110297.6A patent/CN110763382A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502006007335D1 (en) * | 2006-11-11 | 2010-08-12 | Mettler Toledo Ag | Method for monitoring and / or determining the state of a force measuring device and force measuring device |
| CN101545820A (en) * | 2009-05-13 | 2009-09-30 | 广州中船龙穴造船有限公司 | Comprehensive test-bed |
| CN203214051U (en) * | 2012-12-24 | 2013-09-25 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Anti-interference pressure transmitter |
| CN103162893A (en) * | 2013-03-15 | 2013-06-19 | 安徽电子科学研究所 | Multi-component smart pressure transmitter |
| CN203455136U (en) * | 2013-09-02 | 2014-02-26 | 美的集团股份有限公司 | Electric pressure cooker and fault detection device thereof |
| CN203587284U (en) * | 2013-11-30 | 2014-05-07 | 长庆石油勘探局技术监测中心 | Pointer type pressure gage batch calibration device |
| CN105699009A (en) * | 2014-11-25 | 2016-06-22 | 中国科学院沈阳自动化研究所 | Difference value comparison technique-based capacitive pressure sensor fault diagnosis system and method |
| CN104483062A (en) * | 2014-12-23 | 2015-04-01 | 中国电子科技集团公司第四十九研究所 | High-reliability redundancy differential pressure sensor |
| CN105381554A (en) * | 2015-12-10 | 2016-03-09 | 南京正泽科技有限公司 | Double-sensor pressure monitoring system for respirator |
| CN107764480A (en) * | 2017-11-24 | 2018-03-06 | 广东菲柯特电子科技有限公司 | Air pressure test system |
Non-Patent Citations (1)
| Title |
|---|
| 杨素蓉等: "差压变送器在应用中的故障诊断与比较", 《自动化仪表》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210108 Address after: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Applicant after: Liaoning pitotbar Polytron Technologies Inc. Address before: 201600 building 24, 506 South Ring Road, Songjiang District, Shanghai Applicant before: SHANGHAI QUANYOU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200207 |