CN200996881Y - Pressure transmitter of pointer pressure impedant - Google Patents
Pressure transmitter of pointer pressure impedant Download PDFInfo
- Publication number
- CN200996881Y CN200996881Y CN 200620079763 CN200620079763U CN200996881Y CN 200996881 Y CN200996881 Y CN 200996881Y CN 200620079763 CN200620079763 CN 200620079763 CN 200620079763 U CN200620079763 U CN 200620079763U CN 200996881 Y CN200996881 Y CN 200996881Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- pointer
- transmitter
- sensor
- bourdon tube
- 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.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
A pointer meter type crystal piezo-resistance pressure transmitter is provided, which comprises a pressure meter holder (1), a Bourdon tube (2), a link rod (3), a sensor or transmitter (4), a electrical signal output lead (5), and a pointer drive gear mechanism, wherein, the upper part of the pressure meter holder (1) is connected to the driving gear set of the pointer meter, the fluid pipeline passes through the pressure meter holder and is split into two branches, one of which is connected to the Bourdon tube (2), and the other is connected to the sensor or transmitter; the other end of the Bourdon tube is connected to the link rod (3), and the link rod (3) is connected to the pointer drive gear mechanism and drives the gear mechanism to rotate.
Description
Technical field
The utility model belongs to the surveying instrument technical field, particularly utilizes the pressure unit of electric principle measuring fluid pressure.
Background technology
Measuring fluid pressure and the pressure unit that is converted into corresponding electric signal have obtained in hydrodynamic pressure determination techniques field using widely.
Summary of the invention
The utility model purpose is a kind of pointer tabular form silicon piezoresistive pressure transmitter of design.Not only show directly that with pointer pressure changes when being used for measuring fluid pressure, simultaneously pressure is converted into electric signal output, and realize high-acruracy survey and metering or Energy Saving Control.
Specifically, a kind of pointer tabular form silicon piezoresistive pressure transmitter, it comprises pressure gauge stand (1), Bourdon tube (2), connecting rod (3), sensor or transmitter (4), electric signal output lead (5) and pointer driven wheel mechanism, pressure gauge stand (1) top is connected with the pointer gauge drive gear set, fluid circuit passes the pressure gauge stand and top is divided into two-way, one the tunnel is communicated with Bourdon tube (2), another road is communicated with sensor or transmitter, the Bourdon tube other end is connected with connecting rod (3), and connecting rod (3) is connected with pointer driven wheel mechanism and the rotation of driven wheel mechanism.
Described sensor or transmitter (4) are piezoresistive silicon sensor.
The pressure gauge stand is subjected to fluid pressure action, promotes Bourdon tube generation deformation on the one hand, drivening rod generation displacement of the lines, and angular displacement, directly indicated pressure value size on dial plate take place in connecting rod line displacement drive pointer driven wheel mechanism; Make output of silicon induction chip generation deformation Hui Dengsi electric bridge out of trim and the corresponding electric signal of fluid pressure value size in sensor or the transmitter on the other hand.
The utility model principle of work is: detected fluid (liquid or gas) is passed to Bourdon tube by pressure gauge stand pressure interface, bowden piping metallic elastic material, it is subjected to hydrodynamic pressure generation deformation, produce displacement of the lines, its drivening rod drives pointer and makes circular motion, angular displacement takes place, form one-to-one relationship with pointer gauge index dial numeral, the indicated pressure value, detected fluid (liquid or gas) is passed to sensor silicon induction chip by the tensimeter pressure interface simultaneously, make the Hui Dengsi electric bridge out of trim on the induction chip, the electric signal of output and the linear ratio of institute's fluid measured can be treated to required various measurements and control signal by amplifying circuit with this electric signal as required.
The utility model advantage:
1, realizes the on-the-spot indicated pressure size of detected fluid, intuitive and convenient, can select brass or stainless steel pressure gauge stand and Bourdon tube to be used to corrode or the demonstration of non-corrosive medium is measured according to the characteristic of measured medium, sensor supporting with it selects silicon pressure drag chip or stainless steel isolated core body to be used for corrosivity or non-aggressive medium.
2, realize the high-acruracy survey and the control of detected fluid, silicon piezoresistive transducer precision height, available amplifying circuit can be 4-20mADC or the various instrument signals of 0-5VDC with conversion of signals, and also exportable 485 communication signals realize that the computing machine multiple spot shows collection or control.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
A kind of pointer tabular form silicon piezoresistive pressure transmitter, it comprises pressure gauge stand (1), Bourdon tube (2), connecting rod (3), sensor or transmitter (4), electric signal output lead (5) and pointer driven wheel mechanism, it is characterized in that pressure gauge stand (1) top is connected with the pointer gauge drive gear set, fluid circuit passes the pressure gauge stand and top is divided into two-way, one the tunnel is communicated with Bourdon tube (2), another road is communicated with sensor or transmitter, the Bourdon tube other end is connected with connecting rod (3), and connecting rod (3) is connected with pointer driven wheel mechanism and the rotation of driven wheel mechanism.Described sensor or transmitter (4) are piezoresistive silicon sensor.
The utility model manometer type silicon piezoresistive pressure transmitter utilizes patented technology that mechanical indicating pressure gauge and highly sensitive, high precision silicon piezoresistance sensor technology are organically combined together, novel in design, technology is solely held, and the on-the-spot indication of instrument is directly perceived, and stable output signal is reliable.Its instrument indication is not subjected to outage to influence continuous indication, has very big security.Be applicable to of pressure survey and the control of most of environment-industry production run to various liquid, gas and other noncrystalline fluid.Instrument is except that indicating the measured medium force value on the spot, output simultaneously becomes the 4-20mA of line linear scaling with measured medium pressure, standard such as 0-10mA or 0-5V direct current signal, also exportable 485 computing machine communication signals, and realize that long-distance transmissions is to the pulpit, also can with various series of X MZ, XMT digital display manometer or DDZ-II, demonstration, record, adjusting, control system are formed in the supporting use of DDZ-III type transducing unit combination instrument, realize the automatic Detection ﹠ Controling of production run.The main general fields such as gold, electric power, tap water, chemical industry and oil that are applied to control.
Use will be noted:
1, instrument is applicable to that measurement do not have each class I liquid I, the gas of erosion evil to copper, silicon or stainless steel
And other hydrodynamic pressure.
2, during instrumentation, it is full-scale 3/4 that upper limit pressure should not surpass, and upper limit pressure should not surpass full-scalely 2/3 when measuring surge pressure, and minimum pressure should not be lower than full-scale 1/3 in both cases.
3, working medium is a liquid, instrument should be installed in as far as possible with measurement point on same horizontal line, environment temperature is-30 ℃～+ 60 ℃, relative humidity is not more than 80% occasion.
4, have the environment of rapid impact endurance test shock should install corresponding damper additional, the variation per second of measured medium is not more than in 1% measurement range.
5, instrument power supply must be correct, and direct current supply can not reversal connection, and instrument output inside is selected shielded cable for use altogether during installation.
6, the instrument in the use must be examined and determine verification once in 12 months.
7, convenient for the maintenance debugging, when advising that this instrument is installed, stop valve is installed on vertical pipeline, directly install by flange.
Claims (2)
1, a kind of pointer tabular form silicon piezoresistive pressure transmitter, it is characterized in that comprising pressure gauge stand (1), Bourdon tube (2), connecting rod (3), sensor or transmitter (4), electric signal output lead (5) and pointer driven wheel mechanism, it is characterized in that pressure gauge stand (1) top is connected with the pointer gauge drive gear set, fluid circuit passes the pressure gauge stand and top is divided into two-way, one the tunnel is communicated with Bourdon tube (2), another road is communicated with sensor or transmitter, the Bourdon tube other end is connected with connecting rod (3), and connecting rod (3) is connected with pointer driven wheel mechanism and the rotation of driven wheel mechanism.
2, pointer tabular form silicon piezoresistive pressure transmitter according to claim 1 is characterized in that described sensor or transmitter (4) are piezoresistive silicon sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079763 CN200996881Y (en) | 2006-09-08 | 2006-09-08 | Pressure transmitter of pointer pressure impedant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079763 CN200996881Y (en) | 2006-09-08 | 2006-09-08 | Pressure transmitter of pointer pressure impedant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996881Y true CN200996881Y (en) | 2007-12-26 |
Family
ID=38995315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079763 Expired - Fee Related CN200996881Y (en) | 2006-09-08 | 2006-09-08 | Pressure transmitter of pointer pressure impedant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996881Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655413A (en) * | 2015-01-30 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Testing device of sleeve external packer |
-
2006
- 2006-09-08 CN CN 200620079763 patent/CN200996881Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655413A (en) * | 2015-01-30 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Testing device of sleeve external packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG CHANGRUN SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: YAN XIONGKE Effective date: 20091211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091211 Address after: Han Zhen, Zouping County, Binzhou City, Shandong Province, China: 256209 Patentee after: Shandong Changrun Science and Technology Co., Ltd. Address before: Shaanxi province Baoji Baofu Road 101, zip code: 721001 Patentee before: Yan Xiongke |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 |