CN206905960U - A kind of more device for pressure measurement of centralization - Google Patents
A kind of more device for pressure measurement of centralization Download PDFInfo
- Publication number
- CN206905960U CN206905960U CN201720546383.1U CN201720546383U CN206905960U CN 206905960 U CN206905960 U CN 206905960U CN 201720546383 U CN201720546383 U CN 201720546383U CN 206905960 U CN206905960 U CN 206905960U
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- pressure
- compensation
- resistor network
- driving voltage
- 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
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of device for pressure measurement, belong to field of pressure measurement, it is related to a kind of more device for pressure measurement of centralization, by pressure sensor A, pressure sensor B, pressure sensor C, pressure sensor D, pressure sensor E, pressure sensor F, compensation circuit, aviation socket and housing are formed, wherein pressure sensor A to pressure sensor F, compensation circuit, aviation socket is integrated in housing, pressure sensor A to pressure sensor F is connected with compensation circuit, and complete accuracy compensation, aviation socket [8] same to compensation circuit [7] is connected, and finishing device is the same as outside electrical connection, solves the difficult wiring of existing distributed pressure measurement, the problems such as measurement accuracy is relatively low.
Description
Technical field
A kind of device for pressure measurement is the utility model is related to, is specially a kind of more device for pressure measurement of centralization, belongs to pressure
Power fields of measurement.
Background technology
In fields such as aero-engine, gas turbines, pressure signal usually as important control parameter and monitored parameter,
Because testing pressure source distribution in diverse location, traditional pressure measurement method uses distributed arrangement pressure sensor to realize
Distributed pressure measures, can be compared with simple realization pressure measuring function using distributed pressure measuring method, but pressure line
It is big with the arrangement difficulty of electric wiring, and its measurement accuracy depends entirely on pressure sensor self-characteristic, causes distributed pressure
Power measurement accuracy is relatively low, and in order to improve the high efficiency of pressure measxurement and high reliability, the present invention proposes that a kind of centralized pressure is surveyed
Device is measured, using the device, the difficulty of pressure line and electric wiring arrangement can be reduced and improve the precision of pressure measxurement, energy
Enough being widely used in Aero-Space, gas turbine etc. needs to carry out the occasion of multichannel pressure measxurement.
Utility model content
The purpose of this utility model be that in order to solve the difficult wiring of existing distributed pressure measurement, measurement accuracy compared with
Low problem, the utility model provide a kind of highly integrated, high measurement accuracy centralized device for pressure measurement, can complete-
More pressure measurement demands of 55 DEG C~150 DEG C temperature ranges and a kind of more device for pressure measurement of centralization are provided.
The utility model is achieved through the following technical solutions above-mentioned purpose：A kind of more device for pressure measurement of centralization, bag
Include pressure sensor A, pressure sensor B, pressure sensor C, pressure sensor D, pressure sensor E, pressure sensor F, benefit
Repay circuit, aviation socket and housing, the pressure sensor A, pressure sensor B, pressure sensor C, pressure sensor D, pressure
Force snesor E and pressure sensor F are connected with compensation circuit, and the compensation circuit is used to complete pressure sensor A, pressure biography
Sensor B, pressure sensor C, pressure sensor D, pressure sensor E and pressure sensor F accuracy compensation, the aviation socket
It is connected with compensation circuit for being electrically connected with outside, the compensation circuit, aviation socket and pressure sensor A to pressure
Force snesor F is each attached in housing.
The pressure sensor A, pressure sensor B, pressure sensor C, pressure sensor D, pressure sensor E and pressure
Sensor F is the Wheatstone bridge being made up of R1, R2, R3, R4, including pressure sensor driving voltage input A, pressure
Force snesor driving voltage input B, pressure sensor signal output terminals A and pressure sensor signal output end B, the pressure
Transducer excitation voltage input A is connected with the positive Uin+ of driving voltage, the pressure sensor driving voltage input B and excitation
Voltage negative Uin- is connected, and the pressure sensor signal output terminals A is born Uo- with signal output and is connected, the pressure sensor letter
Number output end B is connected with the positive Uo+ of signal output.
The compensation circuit is made up of compensation resistor network Ra, compensation resistor network Rb, compensation resistor network Rc, the benefit
Repay resistor network Ra one end with pressure sensor driving voltage input A to be connected, the compensation resistor network Ra other ends are with swashing
Encourage the positive Uin+ of voltage to be connected, the compensation resistor network Rb and pressure sensor driving voltage input A and pressure sensor are believed
Number output end B is connected, and the compensation resistor network Rc and pressure sensor driving voltage input A and pressure sensor signal are defeated
Go out to hold A to be connected.
Further, the compensation resistor network Ra is can work in -55 DEG C~150 DEG C temperature ranges, and precision is 1 ‰
Within, resistance of the temperature drift value within 20ppm, the Wheatstone bridge string that Ra is formed with pressure sensor A to pressure sensor F
Connection, partial pressure effect is played, realizes pressure sensor A to pressure sensor F full scale accuracy compensations.
Further, the compensation resistor network Rb in -55 DEG C~150 DEG C temperature ranges by can work, and precision is 1 ‰
Within, temperature drift value is in the resistance within 20ppm and the positive temperature coefficient that can be worked in -55 DEG C~150 DEG C temperature ranges heat
Quick resistance is formed, and realizes zero point temperature drift compensations of the pressure sensor A to pressure sensor F at 25 DEG C to 150 DEG C.
Further, the compensation resistor network Rc in -55 DEG C~150 DEG C temperature ranges by can work, and precision is 1 ‰
Within, temperature drift value the resistance within 20ppm and can in -55 DEG C~150 DEG C temperature ranges normal work negative temperature system
Number thermistor is formed, and realizes zero point temperature drift compensations of the pressure sensor A to pressure sensor F at -55 DEG C to 25 DEG C.
The beneficial effects of the utility model are：The more device for pressure measurement of the centralization are reasonable in design, it is possible to achieve it is single or
Measured while most six pressure signals, and carry out sensor accuracy class compensation automatically, had compared with high measurement accuracy, complete
Zero point output is less than 0.025%FS/ DEG C in the range of operation temperature area, disclosure satisfy that the use occasions such as aero-engine, gas turbine
Demand.
Brief description of the drawings
Fig. 1 is the utility model structural principle frame schematic diagram；
Fig. 2 is the utility model structural pressure sensor schematic；
Fig. 3 is Pressure Sensor Precision compensation principle figure；
In figure：1st, pressure sensor A, 2, pressure sensor B, 3, pressure sensor C, 4, pressure sensor D, 5, pressure passes
Sensor E, 6, pressure sensor F, 7, compensation circuit, 71, compensation resistor network Ra, 72, compensation resistor network Rb, 73, compensation electricity
Hinder network Rc, 8, aviation socket, 9, housing, 11, pressure sensor driving voltage input A, 12, pressure sensor driving voltage
Input B, 13, pressure sensor signal output terminals A and 14, pressure sensor signal output end B.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1~3, a kind of more device for pressure measurement of centralization, including pressure sensor A1, pressure sensor B2,
Pressure sensor C3, pressure sensor D4, pressure sensor E5, pressure sensor F6, compensation circuit 7, aviation socket 8 and housing
9, the pressure sensor A1, pressure sensor B2, pressure sensor C3, pressure sensor D4, pressure sensor E5 and pressure
Sensor F6 is connected with compensation circuit 7, and the compensation circuit 7 is used to complete pressure sensor A1, pressure sensor B2, pressure
Sensor C3, pressure sensor D4, pressure sensor E5 and pressure sensor F6 accuracy compensation, the aviation socket 8 is the same as mending
Repay circuit 7 to be connected for being electrically connected with outside, the compensation circuit 7, aviation socket 8 and pressure sensor A1 to pressure
Force snesor F6 is each attached in housing 9, improves the integrated level and measurement accuracy of device, and the aviation socket 8 need to have 14
Contact pin above, to ensure pressure sensor A1 to pressure sensor F6 to provide driving voltage and complete signal output.
The pressure sensor A1, pressure sensor B2, pressure sensor C3, pressure sensor D4, pressure sensor E5
It is the Wheatstone bridge being made up of R1, R2, R3, R4, wherein pressure sensor driving voltage input with pressure sensor F6
A11, pressure sensor driving voltage input B12, pressure sensor signal output terminals A 13 and pressure sensor signal output end
B14 is connected in compensation circuit 7 using soldering mode, and compensation circuit is that every pressure sensor prepares 4 welding holes, the pressure
Force snesor driving voltage input A11 is connected with the positive Uin+ of driving voltage, the pressure sensor driving voltage input B12
Uin- is born with driving voltage to be connected, the pressure sensor signal output terminals A 13 is born Uo- with signal output and is connected, the pressure
Sensor signal output end B14 is connected with the positive Uo+ of signal output.
The compensation circuit 7 is by compensation resistor network Ra71, compensation resistor network Rb72, compensation resistor network Rc73 structures
Into described compensation resistor network Ra71 one end is connected with pressure sensor driving voltage input A11, the compensation resistor network
The Ra71 other ends are connected with the positive Uin+ of driving voltage, the compensation resistor network Rb72 and pressure sensor driving voltage input
A11 is connected with pressure sensor signal output end B14, and the compensation resistor network Rc73 inputs with pressure sensor driving voltage
End A11 is connected with pressure sensor signal output terminals A 13, and the compensation circuit 7 is used to complete pressure sensor A1 to pressure biography
Sensor F6 accuracy compensation, to improve device pressure measurement accuracy, the compensation circuit 7 forms structure by 6 compensation resistor networks
Into wherein compensation resistor network Ra71 is used to connect with pressure sensor A1 to pressure sensor F6, it is ensured that pressure at normal temperatures
The effective range of sensor meets required precision, compensation resistor network Rb by can in -55 DEG C~150 DEG C temperature ranges work
Make, for precision within 1 ‰, temperature drift value is in the resistance within 20ppm and can be worked in -55 DEG C~150 DEG C temperature ranges
Semistor form, complete zero point temperature drift compensation of the temperature at 25 DEG C to 150 DEG C, compensation resistor network Rc73
By can be worked in -55 DEG C~150 DEG C temperature ranges, precision is within 1 ‰, resistance and energy of the temperature drift value within 20ppm
The negative tempperature coefficient thermistor of enough normal works in -55 DEG C~150 DEG C temperature ranges is formed, and is completed temperature and is arrived at -55 DEG C
25 DEG C of zero point temperature drift compensation.
Further, in order to obtain compensation resistor network Ra71 value, pressure sensor A1 is measured at 25 DEG C to pressure
Sensor F6 zero points and full scale value, and regulation resistance network Ra values, it is ensured that pressure sensor A1 has to pressure sensor F6's
Measurement range is imitated to meet to require.
Compensation resistor network Rb72 value under obtaining different temperatures at 25 DEG C and 150 DEG C, it is ensured that pressure sensor A1 to pressure
Force snesor F6 offset output values meet required precision, and resistor network Rb72 structure is completed by calculating, and complete temperature and exist
25 DEG C to 150 DEG C of zero point temperature drift compensation.
Compensation resistor network Rc73 value under obtaining different temperatures at 25 DEG C and -55 DEG C, it is ensured that pressure sensor A1 to pressure
Force snesor F6 offset output values meet required precision, and resistor network Rc73 structure is completed by calculating, complete temperature-
55 DEG C to 25 DEG C of zero point temperature drift compensation.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
- A kind of 1. more device for pressure measurement of centralization, it is characterised in that：Including pressure sensor A（1）, pressure sensor B（2）、 Pressure sensor C（3）, pressure sensor D（4）, pressure sensor E（5）, pressure sensor F（6）, compensation circuit（7）, aviation Socket（8）And housing（9）；The pressure sensor A（1）, pressure sensor B（2）, pressure sensor C（3）, pressure sensor D （4）, pressure sensor E（5）With pressure sensor F（6）And compensation circuit（7）It is connected, the compensation circuit（7）For completing Pressure sensor A（1）, pressure sensor B（2）, pressure sensor C（3）, pressure sensor D（4）, pressure sensor E（5）With Pressure sensor F（6）Accuracy compensation, the aviation socket（8）Same compensation circuit（7）It is connected for electrically being connected with outside Connect, the compensation circuit（7）, aviation socket（8）And pressure sensor A（1）To pressure sensor F（6）It is each attached to housing （9）It is interior.
- A kind of 2. more device for pressure measurement of centralization according to claim 1, it is characterised in that：The pressure sensor A （1）, pressure sensor B（2）, pressure sensor C（3）, pressure sensor D（4）, pressure sensor E（5）With pressure sensor F （6）It is the Wheatstone bridge being made up of R1, R2, R3, R4, including pressure sensor driving voltage input A（11）, pressure Force snesor driving voltage input B（12）, pressure sensor signal output terminals A（13）With pressure sensor signal output end B （14）, the pressure sensor driving voltage input A（11）It is connected with the positive Uin+ of driving voltage, the pressure sensor excitation Voltage input end B（12）Uin- is born with driving voltage to be connected, the pressure sensor signal output terminals A（13）Born with signal output Uo- is connected, the pressure sensor signal output end B（14）It is connected with the positive Uo+ of signal output.
- A kind of 3. more device for pressure measurement of centralization according to claim 1, it is characterised in that：The compensation circuit（7） By compensation resistor network Ra（71）, compensation resistor network Rb（72）, compensation resistor network Rc（73）Form, the compensation resistance net Network Ra one end and pressure sensor driving voltage input A（11）It is connected, the compensation resistor network Ra other ends and excitation electricity Positive pressure Uin+ is connected, the compensation resistor network Rb and pressure sensor driving voltage input A（11）Believe with pressure sensor Number output end B（14）It is connected, the compensation resistor network Rc and pressure sensor driving voltage input A（11）And pressure sensing Device signal output part A（13）It is connected.
- A kind of 4. more device for pressure measurement of centralization according to claim 3, it is characterised in that：The compensation resistor network Ra（71）For that can be worked in -55 DEG C ~ 150 DEG C temperature ranges, precision is within 1 ‰, electricity of the temperature drift value within 20ppm Resistance, Ra is the same as pressure sensor A（1）To pressure sensor F（6）The Wheatstone bridge series connection of composition, plays partial pressure effect, realizes pressure Force snesor A（1）To pressure sensor F（6）Full scale accuracy compensation.
- A kind of 5. more device for pressure measurement of centralization according to claim 3, it is characterised in that：The compensation resistor network Rb（72）By can be worked in -55 DEG C ~ 150 DEG C temperature ranges, precision is within 1 ‰, resistance of the temperature drift value within 20ppm And the semistor of work can be formed in -55 DEG C ~ 150 DEG C temperature ranges, realize pressure sensor A（1） To pressure sensor F（6）In 25 DEG C to 150 DEG C of zero point temperature drift compensation.
- A kind of 6. more device for pressure measurement of centralization according to claim 3, it is characterised in that：The compensation resistor network Rc（73）By can be worked in -55 DEG C ~ 150 DEG C temperature ranges, precision is within 1 ‰, resistance of the temperature drift value within 20ppm And the negative tempperature coefficient thermistor of normal work can be formed in -55 DEG C ~ 150 DEG C temperature ranges, realize pressure sensor A （1）To pressure sensor F（6）In -55 DEG C to 25 DEG C of zero point temperature drift compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546383.1U CN206905960U (en) | 2017-05-17 | 2017-05-17 | A kind of more device for pressure measurement of centralization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546383.1U CN206905960U (en) | 2017-05-17 | 2017-05-17 | A kind of more device for pressure measurement of centralization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206905960U true CN206905960U (en) | 2018-01-19 |
Family
ID=61288905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546383.1U Expired - Fee Related CN206905960U (en) | 2017-05-17 | 2017-05-17 | A kind of more device for pressure measurement of centralization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206905960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553783A (en) * | 2018-05-31 | 2019-12-10 | 联合汽车电子有限公司 | Pressure sensor for vehicle and pressure measuring method |
-
2017
- 2017-05-17 CN CN201720546383.1U patent/CN206905960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553783A (en) * | 2018-05-31 | 2019-12-10 | 联合汽车电子有限公司 | Pressure sensor for vehicle and pressure measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109696637B (en) | Method for monitoring capacity of lithium disposable battery | |
| CN102141422A (en) | Flow-temperature integrated measurement device for moonlet single-phase fluid thermal control loop | |
| CN105890793A (en) | Three-wire Pt100 platinum resistance temperature measurement circuit | |
| CN103728060A (en) | Steel cable prestress magnetic flux impulse measurement method | |
| CN206905960U (en) | A kind of more device for pressure measurement of centralization | |
| CN206074714U (en) | A kind of virtual load assay device for the detection of charging pile metering performance | |
| CN106405146B (en) | A kind of speed and wind direction measuring method for wind based on ultrasonic resonance principle | |
| CN203396529U (en) | Bidirectional axial force measuring device | |
| CN101788830B (en) | Digital temperature control circuit | |
| CN206300712U (en) | A kind of four-point weighing electronic scale circuit | |
| CN208689117U (en) | A kind of internal cell resistance detection system with overcurrent overheat emergency protection function | |
| CN206905925U (en) | A kind of high accuracy number temperature voltage Acquisition Instrument | |
| CN103436650B (en) | Thermal load wireless detection system of high precision blast furnace and detection method thereof | |
| CN203069764U (en) | Electric parameter measurement circuit of battery pack | |
| Yang et al. | Batteryless wireless anemometer with BLE connectivity | |
| CN109141730A (en) | A kind of wind-force wind pressure measuring meter | |
| CN209559357U (en) | A kind of thermal resistance thermometer | |
| CN208953168U (en) | A kind of pressure-measuring system based on voltage-type pressure sensor | |
| CN207937528U (en) | Wind-solar-diesel complementary power generation family monitoring system based on LabVIEW | |
| CN104700505B (en) | Remote-control intelligent mass flow gas meter, flow meter and its management system | |
| CN202204467U (en) | Three-wire-system bridge box used for resistance strain gauge | |
| CN107976144A (en) | A kind of small power radio deformeter | |
| CN212082831U (en) | Temperature transmitter for performance test of integrated gas turbine | |
| CN212540522U (en) | Device for measuring current magnitude by using current thermal effect | |
| CN202453025U (en) | Flow integrating instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |