CN85203516U - Remote pressure meter with spiral boudon tube as strain beam - Google Patents
Remote pressure meter with spiral boudon tube as strain beam Download PDFInfo
- Publication number
- CN85203516U CN85203516U CN 85203516 CN85203516U CN85203516U CN 85203516 U CN85203516 U CN 85203516U CN 85203516 CN85203516 CN 85203516 CN 85203516 U CN85203516 U CN 85203516U CN 85203516 U CN85203516 U CN 85203516U
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- CN
- China
- Prior art keywords
- pressure
- tube
- bourdon tube
- remote pressure
- strain beam
- 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.)
- Ceased
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a remote pressure meter with spiral bourdon tube as strain beam, belonging to an instrument used for measuring gas or liquid pressure in tubes. The existing remote pressure meter makes a silicon pressure sensor connected in the tube, and the pressure of the fluid can be measured by accepting the fluid pressure directly; the silicon pressure sensor has high manufacturing cost and small output signal amplitude. The utility model makes a strain foil stuck to a position which has largest strain on the bourdon tube of the remote pressure meter, and thus, the output signal amplitude is big, the sensitivity is high, and the manufacturing cost is low. The utility model can directly observe the total indicator reading, can output the electrical signal which presents the linear relation with the pressure value, and can be used for measuring the pressure of the fluid in the inflation tube or in the fluid tube.
Description
The utility model belongs to the instrument of interior gas of a kind of measuring channel or fluid pressure.Existing remote pressure gauge is that silicon pressure sensor is connected in the pipeline, directly accepting the pressure of fluid measures, silicon pressure sensor has electric signal output when hydrodynamic pressure changes, its full scale is output as about 40mv, the signal output amplitude is little, and its yield rate is low, thereby the cost height.
The utility model has solved the problems referred to above technically, makes test output electrical signal amplitude 〉=150mv realize that technology is simple, so the cost rate height, this instrument is compared cost than original similar remote pressure gauge can reduce by 60%.
Main points of the present utility model are directly to be bonded at foil gauge on the Bourdon tube of remote pressure gauge with strain gage adhesive, with Bourdon tube as strain beam, when ducted hydrodynamic pressure changes, make Bourdon tube that elastic deformation take place, drive foil gauge and also produce elastic deformation, foil gauge is exported an electric signal, measure its force value, foil gauge is bonded at and becomes 10 ° of left and right sides angles with the Bourdon tube horizontal center line, and near outer peripheral position, the right side, this can make output amplitude big, highly sensitive, can in time measure the situation of change of pipe fluid pressure.Fluid only enters Bourdon tube inside, and foil gauge and circuit are not had corrosive attack.
Accompanying drawing 1 is the paste position synoptic diagram of Bourdon tube as foil gauge in the remote pressure gauge of strain beam.
Accompanying drawing 2 is that Bourdon tube is the electric bridge that the resistance in the foil gauge in the remote pressure gauge of strain beam is formed, the circuit diagram that connects with amplifying circuit.
Realize that Bourdon tube as the best mode of the remote pressure gauge of strain beam as shown in Figure 1.It comprises the Bourdon tube (1) of remote pressure gauge, carries out the pointer indication as the strain beam of ordinarily manometer, again as the strain beam of foil gauge (2).Foil gauge (2) is bonded at strain gage adhesive CC15A and becomes 10 ° of left and right sides angles with the horizontal center line of Bourdon tube, outer edge surface place near Bourdon tube (1) right side, with φ=150mm, during the tensimeter of 1kg, foil gauge (2) is bonded at apart from bowden base (4) right radical portion arc length 65mm place to best.Big, highly sensitive at this position measurement amplitude output signal.Bourdon tube (1) is gone up near being stained with two butt joint coil holders (3) near the foil gauge (2), for welding lead usefulness, to connect amplifying circuit.Foil gauge (2) is 2 * 2mm, thick is 50-100 μ, be output as the silicon foil gauge of 0.4mv/ μ ε, the Wheatstone bridge of forming by 4 resistance in the foil gauge (2) (5), arm resistance is 1-2K Ω, working power (6-9v) is added in 7.8 two ends of electric bridge (5), just can obtain one at 9.10 two ends of electric bridge (5) and be the output voltage signal of linear change with pressure.Just can obtain required out-put dynamic range through operational amplifier (6) at 8,11 two ends.R in the accompanying drawing 2
1, R
2Be the resistance that is used for adjusting the enlargement factor of direct current amplifier, the resistance that adopts low temperature to float.This Bourdon tube can adopt frequency multiplexing technique to be used for the atmospheric pressure value of telemetry communication cable as the remote pressure gauge of strain beam, also can calculate the position that gas leakage is put by computing formula.Equally also can be used for the hydrodynamic pressure in remote measurement coal gas and various chemical industry deferent or the fluid pipeline.Use this Bourdon tube and can directly make digital rain glass, also can be used with microcomputer as the remote pressure gauge of strain beam.
Claims (4)
1, Bourdon tube is used for the instrument of interior gas of measuring channel or fluid pressure as the remote pressure gauge of strain beam, and it comprises Bourdon tube [1] and bowden base [4], and the foil gauge [2] that is characterised in that of the present utility model directly is bonded on the Bourdon tube [1].
2,, it is characterized in that foil gauge (2) is bonded at the outer surface that becomes 10 ° of left and right sides angle Bourdon tubes (1) with the horizontal center line of Bourdon tube (1) according to the remote pressure gauge of the described Bourdon tube of claim 1 as strain beam.
3, according to claim 1,2 described Bourdon tubes remote pressure gauge, it is characterized in that foil gauge (2) is bonded at the outer edge on Bourdon tube (1) right side as strain beam.
4,, it is characterized in that bowden (1) goes up near being stained with two butt joint coil holders (3) near the foil gauge (2) according to claim 1,2 described Bourdon tubes remote pressure gauge as strain beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203516 CN85203516U (en) | 1985-08-26 | 1985-08-26 | Remote pressure meter with spiral boudon tube as strain beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203516 CN85203516U (en) | 1985-08-26 | 1985-08-26 | Remote pressure meter with spiral boudon tube as strain beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85203516U true CN85203516U (en) | 1986-04-30 |
Family
ID=4799048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85203516 Ceased CN85203516U (en) | 1985-08-26 | 1985-08-26 | Remote pressure meter with spiral boudon tube as strain beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85203516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460825C (en) * | 2005-10-13 | 2009-02-11 | 中国科学院半导体研究所 | Optical fibre grating sensor based on Bourdon tube as energy changer and method thereof |
| CN102519653A (en) * | 2011-12-15 | 2012-06-27 | 武汉理工大学 | Spring tube and foil gauge combined type digital pressure gauge |
| CN102840938A (en) * | 2011-06-20 | 2012-12-26 | 台湾双叶工业股份有限公司 | Pressure gauge converted into digital display by using mechanical physical deformation |
-
1985
- 1985-08-26 CN CN 85203516 patent/CN85203516U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460825C (en) * | 2005-10-13 | 2009-02-11 | 中国科学院半导体研究所 | Optical fibre grating sensor based on Bourdon tube as energy changer and method thereof |
| CN102840938A (en) * | 2011-06-20 | 2012-12-26 | 台湾双叶工业股份有限公司 | Pressure gauge converted into digital display by using mechanical physical deformation |
| CN102519653A (en) * | 2011-12-15 | 2012-06-27 | 武汉理工大学 | Spring tube and foil gauge combined type digital pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |