JPS578425A - Pressure detector - Google Patents

Pressure detector

Info

Publication number
JPS578425A
JPS578425A JP8349380A JP8349380A JPS578425A JP S578425 A JPS578425 A JP S578425A JP 8349380 A JP8349380 A JP 8349380A JP 8349380 A JP8349380 A JP 8349380A JP S578425 A JPS578425 A JP S578425A
Authority
JP
Japan
Prior art keywords
output
resistors
zero point
control circuit
bridge circuit
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.)
Granted
Application number
JP8349380A
Other languages
Japanese (ja)
Other versions
JPH0313537B2 (en
Inventor
Mikio Bessho
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8349380A priority Critical patent/JPS578425A/en
Publication of JPS578425A publication Critical patent/JPS578425A/en
Publication of JPH0313537B2 publication Critical patent/JPH0313537B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2268—Arrangements for correcting or for compensating unwanted effects
    • G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations

Abstract

PURPOSE:To compensate temps. and zero point and to obtain the output accurately proportional to pressure by constituting a bridge circuit with semiconductor strain gages and providing compensating resistors and a control circuit. CONSTITUTION:A bridge circuit 2 is constituted by the bridge connection of semiconductor strain gages 17-20, and compensating resistors 25, 26 which compensate the temp. drift of zero point offset voltage, that is, perform temp. compensation of zero point output are connected to the output terminals 23, 24 thereof, and are connected to an operational amplifier 28 via a control circuit 27. The control circuit 27 is constituted of resistors 30-33 and an operational amplifier 35 for converting the output of the bridge circuit 2 to single output as well as voltage dividing resistors 36, 37 for applying prescribed bias voltage to the amplifier 28.
JP8349380A 1980-06-18 1980-06-18 Pressure detector Granted JPS578425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8349380A JPS578425A (en) 1980-06-18 1980-06-18 Pressure detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8349380A JPS578425A (en) 1980-06-18 1980-06-18 Pressure detector

Publications (2)

Publication Number Publication Date
JPS578425A true JPS578425A (en) 1982-01-16
JPH0313537B2 JPH0313537B2 (en) 1991-02-22

Family

ID=13803999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8349380A Granted JPS578425A (en) 1980-06-18 1980-06-18 Pressure detector

Country Status (1)

Country Link
JP (1) JPS578425A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093450A2 (en) * 1982-05-05 1983-11-09 Itt Industries, Inc. Differential pressure apparatus
JPS61259134A (en) * 1985-05-14 1986-11-17 Sumitomo Electric Ind Ltd Semiconductive pressure sensor
JPS6269137U (en) * 1985-09-17 1987-04-30
JPS62185138A (en) * 1986-02-12 1987-08-13 Omron Tateisi Electronics Co Pressure sensor
JPH0249133A (en) * 1984-11-06 1990-02-19 Yokogawa Hewlett Packard Ltd Pressure measuring instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56145327A (en) * 1980-04-15 1981-11-12 Fuji Electric Co Ltd Pressure transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56145327A (en) * 1980-04-15 1981-11-12 Fuji Electric Co Ltd Pressure transducer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093450A2 (en) * 1982-05-05 1983-11-09 Itt Industries, Inc. Differential pressure apparatus
JPH0249133A (en) * 1984-11-06 1990-02-19 Yokogawa Hewlett Packard Ltd Pressure measuring instrument
JPH0567894B2 (en) * 1984-11-06 1993-09-27 Hewlett Packard Yokogawa
JPS61259134A (en) * 1985-05-14 1986-11-17 Sumitomo Electric Ind Ltd Semiconductive pressure sensor
JPS6269137U (en) * 1985-09-17 1987-04-30
JPH0539472Y2 (en) * 1985-09-17 1993-10-06
JPS62185138A (en) * 1986-02-12 1987-08-13 Omron Tateisi Electronics Co Pressure sensor
JPH0545130B2 (en) * 1986-02-12 1993-07-08 Omron Tateisi Electronics Co

Also Published As

Publication number Publication date
JPH0313537B2 (en) 1991-02-22

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