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JPS5744830A - Pressure detecting device - Google Patents

Pressure detecting device

Info

Publication number
JPS5744830A
JPS5744830A JP11974280A JP11974280A JPS5744830A JP S5744830 A JPS5744830 A JP S5744830A JP 11974280 A JP11974280 A JP 11974280A JP 11974280 A JP11974280 A JP 11974280A JP S5744830 A JPS5744830 A JP S5744830A
Authority
JP
Japan
Prior art keywords
pressure
resistance values
temperature
operation amplifier
vary
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.)
Pending
Application number
JP11974280A
Other languages
Japanese (ja)
Inventor
Hideo Sato
Matsuo Amano
Takao Sasayama
Kazuji Yamada
Kiyomitsu Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11974280A priority Critical patent/JPS5744830A/en
Publication of JPS5744830A publication Critical patent/JPS5744830A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
    • G01L9/04—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges
    • G01L9/045—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of resistance-strain gauges with electric temperature compensating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE:To realize high accuracy and a low cost in the titled device by digitally performing the temperature compensation of a gage element of a pressure sensor by an operation processing circuit. CONSTITUTION:A current is supplied to a bridge circuit comprising gage element G1-G4, whose resistance values are equal and temperature characteristics are approximately equal, from a constant current circuit comprising resistors R1-R3, transistors Tr1 and Tr2, and an operation amplifier OP1. The resistance values of the elements G1 and G3 vary in proportion to the pressure variation, and the resistance values of G2 and G3 vary in inversely proportional to the pressure variation. Therefore, the voltage variation at one end of the bridge circuit, which is detected via the operation amplifier OP1 gives a temperature sensing signal Vot, while an output signal Vop is given pressure signals at connecting points P1 and P2 which are detected through an operation amplifier OP3. Vot and Vop are stored in RAM. The pressure wherein temperature is compensated by CPU via data of ROM is obtained. Thus the high accuracy and the low cost in the device are realized.
JP11974280A 1980-09-01 1980-09-01 Pressure detecting device Pending JPS5744830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11974280A JPS5744830A (en) 1980-09-01 1980-09-01 Pressure detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11974280A JPS5744830A (en) 1980-09-01 1980-09-01 Pressure detecting device

Publications (1)

Publication Number Publication Date
JPS5744830A true JPS5744830A (en) 1982-03-13

Family

ID=14769003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11974280A Pending JPS5744830A (en) 1980-09-01 1980-09-01 Pressure detecting device

Country Status (1)

Country Link
JP (1) JPS5744830A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228773A (en) * 1984-04-26 1985-11-14 Takuo Mochizuki Underwater rotary power device using liquid jet stream
JPS6193275A (en) * 1984-10-12 1986-05-12 Hayashi Eng Kk Method of driving underwater working device
JPS61171883A (en) * 1985-01-26 1986-08-02 Daiji Mitsuhiro Gas liquid engine
JPH02502301A (en) * 1987-11-30 1990-07-26 ゲブリユーダー　ズルツアー　アクチエンゲゼルシヤフト Turbine with hydraulic regulator
EP0482487A2 (en) * 1990-10-25 1992-04-29 Becton, Dickinson and Company Apparatus and method for a temperature compensation of a pressure transducer
JPH04155233A (en) * 1990-10-18 1992-05-28 Yamatake Honeywell Co Ltd Correction of temperature characteristic for pressure sensor
US6810745B2 (en) * 2002-03-29 2004-11-02 Denso Corporation Temperature dependent sensitivity compensation structure of sensor
JP2016180350A (en) * 2015-03-24 2016-10-13 株式会社ベルシオン Pressure water power generation device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53703A (en) * 1976-06-22 1978-01-06 Fuji Photo Film Co Ltd Method of make transparent original for photooengraving

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53703A (en) * 1976-06-22 1978-01-06 Fuji Photo Film Co Ltd Method of make transparent original for photooengraving

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228773A (en) * 1984-04-26 1985-11-14 Takuo Mochizuki Underwater rotary power device using liquid jet stream
JPH0158345B2 (en) * 1984-04-26 1989-12-11 Takuo Mochizuki
JPS6193275A (en) * 1984-10-12 1986-05-12 Hayashi Eng Kk Method of driving underwater working device
JPS61171883A (en) * 1985-01-26 1986-08-02 Daiji Mitsuhiro Gas liquid engine
JPH0120312B2 (en) * 1985-01-26 1989-04-14 Daiji Mitsuhiro
JPH02502301A (en) * 1987-11-30 1990-07-26 ゲブリユーダー　ズルツアー　アクチエンゲゼルシヤフト Turbine with hydraulic regulator
JPH0444109B2 (en) * 1987-11-30 1992-07-20 Geburu* Zurutsuaa Ag
JPH04155233A (en) * 1990-10-18 1992-05-28 Yamatake Honeywell Co Ltd Correction of temperature characteristic for pressure sensor
EP0482487A2 (en) * 1990-10-25 1992-04-29 Becton, Dickinson and Company Apparatus and method for a temperature compensation of a pressure transducer
US6810745B2 (en) * 2002-03-29 2004-11-02 Denso Corporation Temperature dependent sensitivity compensation structure of sensor
JP2016180350A (en) * 2015-03-24 2016-10-13 株式会社ベルシオン Pressure water power generation device

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