CN2089627U - Shock-proof photoelectric pulse pressure digit display gage - Google Patents
Shock-proof photoelectric pulse pressure digit display gage Download PDFInfo
- Publication number
- CN2089627U CN2089627U CN 90227122 CN90227122U CN2089627U CN 2089627 U CN2089627 U CN 2089627U CN 90227122 CN90227122 CN 90227122 CN 90227122 U CN90227122 U CN 90227122U CN 2089627 U CN2089627 U CN 2089627U
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- CN
- China
- Prior art keywords
- pressure
- circuit
- digital display
- antidetonation
- sensor
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- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a shock-proof photoelectric pulse pressure digit display gage, which adopts pressure films and a photoelectric conversion device as a pressure sensor. The pressure film is an elastic thin film, and the center of one surface thereof is provided with a convex area which is vertical to the surface and is connected with the photoelectric conversion device. The pressure film generates deformation during the pressure measuring to push the photoelectric conversion device for generating displacement corresponding to light source. The changed displacement is converted into electrical signals for output via the photoelectric conversion device. Pressure value measured can be directly displayed via an analogue-digital conversion circuit, a power amplification circuit, and a digital display circuit. The pressure digit display gage can be used for measuring the pressure of liquid and air, in particular for measuring the pressure with ripple components.
Description
The utility model relates to a kind of electric measurement manometer, particularly relates to a kind of antidetonation photoelectricity fluctuation pressure digital display meter.
In many fields of national economy, a large amount of need carry out monitoring and measuring to the pressure that contains ripple component, and common pointer mechanical pressure gauge is difficult to read accurate force value, if do not take the frequent breakage that impact mitigation measure also can the build-up of pressure table.The application number of Patent Office of the People's Republic of China's utility model patent communique bulletin in 31 days January nineteen ninety is 89200552.1, the patented claim that name is called " mud digital display manometer " discloses a kind of direct pressure measuring instruments that adopts numeral to show force value, though it is not directly perceived that it has overcome pointer mechanical pressure meter reading, readability standard not, the shortcoming of observed reading difficulty when ambient light illumination is low, but the strain gauge pressure sensor that this patented claim is adopted, under the impact of fluctuation pressure, still can cause fatigue break, influence is used.And should " mud pressure digital display meter " the temperature control part be set, when using, be difficult to guarantee measuring accuracy in the lower field of environment temperature.
The purpose of this utility model is to overcoming the deficiency of prior art, provides a kind of numeral to show that anti-fluctuation pressure is impacted to society, measuring accuracy high and can be in outdoor low temperature environment the pressure on the number Displaying Meter of operate as normal.
The utility model can be realized by following measure:
This antidetonation photoelectricity fluctuation pressure digital display meter, comprise the sensor that one one end links to each other with tested pipeline, one one analog to digital conversion circuit that end links to each other with sensor, the power amplification circuit that input end links to each other with the analog to digital conversion circuit output terminal, a digital display circuit that links to each other with the power amplification circuit output terminal, supply with analog to digital conversion circuit for one, power amplification circuit, the direct current regulation circuit of digital display circuit operating voltage and a direct current regulation circuit of supplying with the high voltage stability precision of working sensor voltage, sensor comprises a pressure-sensitive diaphragm, light source and electrooptical device, pressure-sensitive diaphragm is an elastic sheet, the center of one face has one to link to each other with electrooptical device with the vertical projection of face, light source is arranged on and the corresponding position of electrooptical device, make the light beam direct irradiation on electrooptical device, when being acted on the pressure-sensitive diaphragm by measuring pressure, pressure-sensitive diaphragm produces deformation, the electrooptical device that links to each other with pressure-sensitive diaphragm produces the displacement with respect to light source thereupon, the displacement difference that different pressure produces, the variation of this displacement converts electric signal output to through electrooptical device, under the frequent impact of fluctuation pressure, the pressure-sensitive diaphragm that has central protuberance does not produce fatigue break, has guaranteed measuring accuracy.For make the utility model can be in outdoor low temperature environment operate as normal, Biao Nei also is provided with the automatic temperature-adjusting control circuit.
Aforesaid automatic temperature-adjusting control circuit is work like this: the ambient temperature signal that Sensitive Apparatus Rt experiences is by IC
4After the amplification, through IC
6Be coupled to power amplifier level BG
2, BG
2Output signal triggers BG
3Conducting makes R
18With the alternating current 220V power connection.
For improving measuring accuracy of the present utility model, supply with the operating voltage of sensor, be by sending into voltage stabilizer IC after the rectifier rectification filtering
5The generating positive and negative voltage of the high voltage stability precision that produces, power supply separately.
The utility model also is provided with automatic brightness regulation circuit, by photosensitive device R
6Detected ambient brightness signal is through BG
1Send into digital display circuit after the amplification, control the brightness of shown numeral, to remedy ambient light luminous deficiency and prevent that the numeral that ambient light shows when dark is too bright dazzling when strong.
Advantage of the present utility model:
1, sensor has adopted pressure matrix and electrooptical device, and it is contactless form that pressure is converted to electric weight, and the pressure matrix can bear the frequent impact of fluctuation pressure, and recovery linear and deformation is good, and the sensor antidetonation is not fragile.
2, adopted the automatic temperature-adjusting control circuit, this pressure digital display meter can be in-30～60 ℃ ambient temperature range operate as normal.
3, the measuring accuracy of this pressure digital display meter is better than 0.1%.
4, digital display brightness can be regulated automatically, and no matter environment for use light is strong and weak all can clear observation.
5, pressure transducer, circuit and display device are integrated, and sensor is furnished with the standard thread interface, can directly be installed on to measure on the pipeline.
Fig. 1 is the structural drawing of sensor
Fig. 2 is an electrical schematic diagram of the present utility model
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the plane of pressure-sensitive diaphragm 9 is put in pipeline connection 7 upper ends that have cavity, tube 8 and pipeline connection 7 are installed by being threaded, pressure-sensitive diaphragm 9 crampings are between pipeline connection 7 and installation tube 8, electrooptical device 13 is loaded on the erecting frame 14, erecting frame 14 is fastenedly connected with the central protuberance 15 of pressure-sensitive diaphragm 9, light source 10 is fixed on to be installed on the tube 8, and the light beam direct irradiation that makes light source 10 is on electrooptical device 13, housing 11 is threaded with installation tube 8, supply with the line of light source 10 and electrooptical device 13 operating voltage and the voltage signal line of electrooptical device 13 outputs, draw from the hole on housing 11 tops.During gaging pressure, fluid to be measured or gas are entered by the cavity of pipeline connection 7, act directly on the pressure-sensitive diaphragm 9, pressure-sensitive diaphragm 9 produces deformation, promote the displacement that electrooptical device 13 produces with respect to light source 10 light beams, send into analog to digital conversion circuit 4 among Fig. 2 by the electric signal of electrooptical device 13 output through bundle conductor 12, the digital signal of analog to digital conversion circuit 4 outputs is sent into power amplification circuit 5, drives digital display circuit 6 through the signal of power amplification and directly demonstrates tested force value.The ambient temperature signal that sensitive resistance Rt in the automatic temperature-adjusting control circuit experiences is by amplifier IC
4After the amplification, through IC
6Be coupled to power amplifier level BG
2, BG
2Output signal trigger BG
3The controllable silicon conducting makes R
18With the alternating current 220V power connection, this add circuit temperature make sensor 3 can be in-30 ℃ low temperature environment operate as normal.Two groups of voltages of power rectifier circuit 1 output, wherein one group through IC
1, IC
2, IC
3Digital display circuit 6, analog to digital conversion circuit 4, power amplification circuit 5 and teletransmission circuit 2 are supplied with in output respectively after the voltage stabilizing.Another group voltage is sent into the voltage stabilizer IC of high voltage stability precision behind capacitance-resistance filter
5, the generating positive and negative voltage of exporting after the voltage stabilizing is supplied with sensor 3, to improve measuring accuracy.By photosensitive device R
6Detected ambient brightness signal is through BG
1Send into digital display circuit 6 after the amplification, control the brightness of the shown numeral of charactron automatically.Electrooptical device 13 can be photoelectric cell, photoresistance, photopotentiometer or photistor.
The pressure signal of this pressure digital display meter can be delivered to robot calculator by teletransmission circuit 2 and control automatically.
Claims (5)
1, a kind of antidetonation photoelectricity fluctuation pressure digital display meter, comprise the sensor 3 that one one end links to each other with tested pipeline, one one analog to digital conversion circuit 4 that end links to each other with sensor, the power amplification circuit 5 that input end links to each other with the analog to digital conversion circuit output terminal, a digital display circuit 6 that links to each other with power amplification circuit 5 output terminals, supply with analog to digital conversion circuit 4 for one, power amplification circuit 5, the direct current regulation circuit of the direct current regulation circuit of digital display circuit 6 operating voltage and supply sensor 3 operating voltage, it is characterized in that: said sensor 3 comprises a pressure-sensitive diaphragm 9, light source 10 and electrooptical device 13, pressure-sensitive diaphragm 9 is elastic sheets, the center of one face has one to link to each other with electrooptical device 13 with the vertical projection 15 of face, light source 10 is arranged on and electrooptical device 13 corresponding positions, makes the light beam direct irradiation on electrooptical device 13; Said antidetonation photoelectricity fluctuation pressure digital display meter also comprises an automatic temperature-adjusting control circuit.
2, antidetonation photoelectricity fluctuation pressure digital display meter according to claim 1 is characterized in that: send into amplifier IC by the temperature variation signal of Sensitive Apparatus Rt impression in the automatic temperature-adjusting control circuit
4After the amplification, through IC
6Be coupled to power amplifier BG
2, BG
2Output signal drives BG
3Conducting makes R
18With the alternating current 220V power connection.
3, antidetonation photoelectricity fluctuation pressure digital display meter according to claim 1 is characterized in that: the direct current regulation circuit of supplying with sensor 3 operating voltage is sent into voltage stabilizer IC after by rectifier 1 rectifying and wave-filtering
5, by IC
5The generating positive and negative voltage of output high voltage stability precision.
4, antidetonation photoelectricity fluctuation pressure digital display meter according to claim 1 is characterized in that: also comprise an automatic brightness regulation circuit in the said digital display circuit, by photosensitive device R
6The ambient brightness reliability signal that detects is through BG
1Amplify the control signal of back output, regulate the brightness of display digit automatically.
5, antidetonation photoelectricity fluctuation pressure digital display meter according to claim 1, it is characterized in that: electrooptical device 13 can be photoelectric cell, photoresistance, photopotentiometer or photistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90227122 CN2089627U (en) | 1990-12-29 | 1990-12-29 | Shock-proof photoelectric pulse pressure digit display gage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90227122 CN2089627U (en) | 1990-12-29 | 1990-12-29 | Shock-proof photoelectric pulse pressure digit display gage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2089627U true CN2089627U (en) | 1991-11-27 |
Family
ID=4904244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90227122 Withdrawn CN2089627U (en) | 1990-12-29 | 1990-12-29 | Shock-proof photoelectric pulse pressure digit display gage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2089627U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850504A (en) * | 2015-07-29 | 2018-03-27 | 恩德莱斯和豪瑟尔两合公司 | Pressure sensor and the method for monitoring pressure sensor |
| CN109827703A (en) * | 2019-03-27 | 2019-05-31 | 歌尔股份有限公司 | Air pressure detection method, device and washing machine |
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
-
1990
- 1990-12-29 CN CN 90227122 patent/CN2089627U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850504A (en) * | 2015-07-29 | 2018-03-27 | 恩德莱斯和豪瑟尔两合公司 | Pressure sensor and the method for monitoring pressure sensor |
| CN107850504B (en) * | 2015-07-29 | 2020-05-26 | 恩德莱斯和豪瑟尔欧洲两合公司 | Pressure sensor and method for monitoring a pressure sensor |
| US10712219B2 (en) | 2015-07-29 | 2020-07-14 | Endress+Hauser SE+Co. KG | Pressure sensor and method for monitoring a pressure sensor |
| CN109827703A (en) * | 2019-03-27 | 2019-05-31 | 歌尔股份有限公司 | Air pressure detection method, device and washing machine |
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |