CN206300711U - A kind of four angular measurement electronic scale circuits of half-bridge sensor series four - Google Patents

A kind of four angular measurement electronic scale circuits of half-bridge sensor series four Download PDF

Info

Publication number
CN206300711U
CN206300711U CN201621463952.8U CN201621463952U CN206300711U CN 206300711 U CN206300711 U CN 206300711U CN 201621463952 U CN201621463952 U CN 201621463952U CN 206300711 U CN206300711 U CN 206300711U
Authority
CN
China
Prior art keywords
pressure sensor
measurement
pressure
sensor
resistance
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.)
Active
Application number
CN201621463952.8U
Other languages
Chinese (zh)
Inventor
张国高
秦孝勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Icomon Technology Co Ltd
Original Assignee
Guangdong Icomon Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Icomon Technology Co Ltd filed Critical Guangdong Icomon Technology Co Ltd
Priority to CN201621463952.8U priority Critical patent/CN206300711U/en
Application granted granted Critical
Publication of CN206300711U publication Critical patent/CN206300711U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of four angular measurement electronic scale circuits of half-bridge sensor series four, including by four pressure sensor S1 of resistance-type, pressure sensor S4, pressure sensor S3 and pressure sensor S2 are sequentially connected in series the electric bridge with power supply contact and six signal measuring points to be formed, not only the electric bridge that four pressure sensors are constituted is measured, the output relation between four pressure sensors is also measured respectively, obtain four respective outputs of pressure sensor, demarcated by corner, reduce the requirement that pressure sensor selects pairing, improve production first-pass yield, it is easy to maintenance, four-point electronic scale corner unbalance loading performance is greatly improved, and the precision of measurement is improve more than ten times.

Description

A kind of four angular measurement electronic scale circuits of half-bridge sensor series four
Technical field
The utility model is related to a kind of weighing apparatus, particularly a kind of four-point weighing electronic scale.
Background technology
It is that a pressure sensor is respectively set at four angles of electronic scale to be weighed using half-bridge four-point, by favour stone Balanced bridge method calculated weight.Current four-point weighing electronic scale circuit is as shown in figure 1, this circuit cannot measure single pressure Force snesor is exported, and four pressure sensors are necessarily exported unanimously, could meet four pin unbalance loadings, is passed to meet four pressure Sensor output is consistent, generally uses and selects matching method, and pressure sensor has 20% output difference, adds and is selected by single Means are limited, install fixed generation difference and cost reason, and precision generally can only achieve 1/200, and production first-pass yield is not high, dimension Repair trouble.
The content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of four half-bridge sensor series four of high precision Angular measurement electronic scale circuit.
The utility model solves the technical scheme that its technical problem used:
A kind of four angular measurement electronic scale circuits of half-bridge sensor series four, including four pressure sensors of resistance-type S1, pressure sensor S2, pressure sensor S3 and pressure sensor S4, the pressure sensor S1, pressure sensor S2, pressure Sensor S3 and pressure sensor S4 include two the resistance R, the pressure sensor S1 of series connection, pressure sensor S4, pressure Force snesor S3 and pressure sensor S2 are sequentially connected in series the electric bridge to be formed with power supply contact and six signal measuring points, the power supply Contact include with the positive source VDD of two Node connectedness of resistance R in the pressure sensor S1 and with the pressure sensing Two power cathode GND of the Node connectedness of resistance R in device S3, six signal measuring points are respectively:With the pressure sensing Two Node connectedness of resistance R in two the measurement end AI0 and the pressure sensor S2 of the Node connectedness of resistance R in device S4 Measurement end AI1 and the pressure sensor S1 and pressure sensor S2 Node connectedness measurement end AI2 and the pressure The measurement end AI3 of the Node connectedness of the sensor S1 and pressure sensor S4 and pressure sensor S2 and pressure sensor S3 Node connectedness measurement end AI4 and the pressure sensor S3 and pressure sensor S4 Node connectedness measurement end AI5.
The beneficial effects of the utility model are:The utility model is not only surveyed to the electric bridge that four pressure sensors are constituted Amount, also measures the output relation between four pressure sensors respectively, four respective outputs of pressure sensor is obtained, by four Footmark is determined, and reduces the requirement that pressure sensor selects pairing, improves production first-pass yield, easy to maintenance, by four-point electronics Scale corner unbalance loading performance is greatly improved, and precision is improve more than ten times.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is four angular measurements electronic scale circuit of the prior art;
Fig. 2 is four angular measurements electronic scale circuit of the present utility model.
Specific embodiment
Reference picture 2, a kind of four angular measurement electronic scale circuits of half-bridge sensor series four, including four pressure of resistance-type Sensor S1, pressure sensor S2, pressure sensor S3 and pressure sensor S4, the pressure sensor S1, pressure sensor S2, pressure sensor S3 and pressure sensor S4 include two resistance R of series connection, the pressure sensor S1, pressure sensing Device S4, pressure sensor S3 and pressure sensor S2 are sequentially connected in series the electric bridge to be formed with power supply contact and six signal measuring points, The power supply contact include with the positive source VDD of two Node connectedness of resistance R in the pressure sensor S1 and with it is described Two power cathode GND of the Node connectedness of resistance R in pressure sensor S3, six signal measuring points are respectively:With it is described Two resistance R in two the measurement end AI0 and the pressure sensor S2 of the Node connectedness of resistance R in pressure sensor S4 The measurement end AI2 of the Node connectedness of the measurement end AI1 of Node connectedness and the pressure sensor S1 and pressure sensor S2 and The measurement end AI3 of the Node connectedness of the pressure sensor S1 and pressure sensor S4 and the pressure sensor S2 and pressure The survey of the Node connectedness of the measurement end AI4 of the Node connectedness of sensor S3 and the pressure sensor S3 and pressure sensor S4 Amount end AI5.
Measurement end AI0, measurement end AI1 are whole Wheatstone bridge(Wheatstone bridge)Measured value, measurement end Output relation between AI2, measurement end AI3, measurement end AI4, four pressure sensors of measurement end AI5 measured values, is calculated Four respective outputs of pressure sensor, by increase by four pin sensors measurement and software correction, make corner unbalance loading performance and Precision is greatly improved.
Software correction principle is as follows:
AD=AD1*C/C1+AD2*C/C2+AD3*C/C3+AD4*C/C4;
Wherein,
AD1, AD2, AD3, AD4 are four single outputs of pressure sensor;
C is standard value;
C1, C2, C3, C4 are four pressure sensor standard values;
C/C1, C/C2, C/C3, C/C4 are four proportionate relationships of pressure sensor.
Obtained by adding same weight to correct, C1=AD1;C2=AD2;C3=AD3;C4=AD4, when weighing, by calculating AD =AD1*C/C1+AD2*C/C2+AD3*C/C3+AD4*C/C4 can just correct the error that unbalance loading is brought.
The utility model is not only measured to the electric bridge that four pressure sensors are constituted, and four pressure is also measured respectively and is passed Output relation between sensor, obtains four respective outputs of pressure sensor, is demarcated by corner, reduces pressure sensor The requirement of pairing is selected, production first-pass yield is improve, it is easy to maintenance, four-point electronic scale corner unbalance loading performance is greatly improved, And precision is improve more than ten times.

Claims (1)

1. a kind of four angular measurement electronic scale circuits of half-bridge sensor series four, including four pressure sensor S1 of resistance-type, Pressure sensor S2, pressure sensor S3 and pressure sensor S4, the pressure sensor S1, pressure sensor S2, pressure are passed Sensor S3 and pressure sensor S4 include two resistance R of series connection, it is characterised in that the pressure sensor S1, pressure sensing Device S4, pressure sensor S3 and pressure sensor S2 are sequentially connected in series the electric bridge to be formed with power supply contact and six signal measuring points, The power supply contact include with the positive source VDD of two Node connectedness of resistance R in the pressure sensor S1 and with it is described Two power cathode GND of the Node connectedness of resistance R in pressure sensor S3, six signal measuring points are respectively:With it is described Two resistance R in two the measurement end AI0 and the pressure sensor S2 of the Node connectedness of resistance R in pressure sensor S4 The measurement end AI2 of the Node connectedness of the measurement end AI1 of Node connectedness and the pressure sensor S1 and pressure sensor S2 and The measurement end AI3 of the Node connectedness of the pressure sensor S1 and pressure sensor S4 and the pressure sensor S2 and pressure The survey of the Node connectedness of the measurement end AI4 of the Node connectedness of sensor S3 and the pressure sensor S3 and pressure sensor S4 Amount end AI5.
CN201621463952.8U 2016-12-29 2016-12-29 A kind of four angular measurement electronic scale circuits of half-bridge sensor series four Active CN206300711U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621463952.8U CN206300711U (en) 2016-12-29 2016-12-29 A kind of four angular measurement electronic scale circuits of half-bridge sensor series four

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621463952.8U CN206300711U (en) 2016-12-29 2016-12-29 A kind of four angular measurement electronic scale circuits of half-bridge sensor series four

Publications (1)

Publication Number Publication Date
CN206300711U true CN206300711U (en) 2017-07-04

Family

ID=59205639

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621463952.8U Active CN206300711U (en) 2016-12-29 2016-12-29 A kind of four angular measurement electronic scale circuits of half-bridge sensor series four

Country Status (1)

Country Link
CN (1) CN206300711U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106706085A (en) * 2016-12-29 2017-05-24 广东沃莱科技有限公司 Four-corner measurement electronic scale circuit formed through series connection of four half-bridge sensors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106706085A (en) * 2016-12-29 2017-05-24 广东沃莱科技有限公司 Four-corner measurement electronic scale circuit formed through series connection of four half-bridge sensors

Similar Documents

Publication Publication Date Title
CN103245824A (en) Non-contact D-dot voltage transformer and voltage detection self-correcting method thereof
CN105973510B (en) Loading shovel forces testing method
CN103278229B (en) Helicopter weighing measurement device and helicopter center of gravity measurement method
CN203758658U (en) Transmission line mechanics monitoring digit sensor
CN206300711U (en) A kind of four angular measurement electronic scale circuits of half-bridge sensor series four
US10261112B2 (en) Non-contact type voltage sensor for dual-wire power cable and method for compensating installation position variation thereof
CN105241371A (en) Resistance strain gauge
CN106706085A (en) Four-corner measurement electronic scale circuit formed through series connection of four half-bridge sensors
CN202149825U (en) Bridge circuit balancer for thick film ceramic piezoresistive type pressure sensor
CN108917587B (en) A kind of resistance-strain type curvature sensor based on favour stone full-bridge principle
CN206420436U (en) Temperature compensating type semiconductor strain gauge with CMOS temperature transmitter
CN202994259U (en) Weighing sensor, and digital display pushpull dynamometer using same
CN106989826A (en) A kind of temperature measuring equipment
CN210570634U (en) Level measuring device
CN210071216U (en) Double-bridge compensation pressure sensor
CN206300712U (en) A kind of four-point weighing electronic scale circuit
CN203396501U (en) Pointer type electronic thermometer
CN203964948U (en) A kind of new soil flow of water temperature sensor
CN103454003A (en) Pointer type electronic thermometer
CN201225881Y (en) Balancer for detecting strain
CN204405169U (en) Portable waterproof electronic scales
CN207163561U (en) A kind of weight sensor with temperature sensing
CN207816423U (en) The washing machine for detection function of weighing with strain
CN2921797Y (en) Junction box for regulating weighing device unbalance loading error during multisensor paralleling
CN211668680U (en) Strain gauge for two-dimensional force cylindrical sensor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant