SE8202060L - Temp. compensation for transducer components - generates signal having temp. related characteristics inverse to temperature dependency component of transducer characteristic - Google Patents

Temp. compensation for transducer components - generates signal having temp. related characteristics inverse to temperature dependency component of transducer characteristic

Info

Publication number
SE8202060L
SE8202060L SE8202060A SE8202060A SE8202060L SE 8202060 L SE8202060 L SE 8202060L SE 8202060 A SE8202060 A SE 8202060A SE 8202060 A SE8202060 A SE 8202060A SE 8202060 L SE8202060 L SE 8202060L
Authority
SE
Sweden
Prior art keywords
temp
output
transducer
compensation
current
Prior art date
Application number
SE8202060A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE439837B (en
Inventor
Der Have L A Van
Original Assignee
Combustion Eng
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 Combustion Eng filed Critical Combustion Eng
Publication of SE8202060L publication Critical patent/SE8202060L/en
Publication of SE439837B publication Critical patent/SE439837B/en

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
    • G01L9/10—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 inductance, i.e. electric circuits therefor
    • G01L9/105—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 inductance, i.e. electric circuits therefor with temperature compensating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

Abstract

The transducer system includes a reluctance resistance bridge having coils on E cores for measuring the pressure differential across a sensor element such as a diaphragm. This bridge is activated by a signal generator and normally its output would be independent of the sensor temperature. The A.C. output of the signal generator is modified such that the temperature compensation is made in the transducer activator or excitation and not in subsequently modifying the transducer output signal. A voltage source pref. in the range of 5 to 10 volt provides the reference voltage to Vc corresponding to the reference output of the current source at the calibration temp. One branch of the Norton divider is a variable conductance ladder having an output current which increases at a programmed rate as the current from the temp. dependent source increases. The operational amplifier provides the output of the compensation circuit and the temp. dependence of the output voltage is a close approximation to the inverse of the temp. dependence of the sensors or transducers.
SE8202060A 1980-08-04 1982-03-31 ELECTRICAL CIRCUIT FOR COMPENSATION OF THE TEMPERATURE RELIABILITY OF A SENSOR ELEMENT IN A CONVERTER SYSTEM SE439837B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/001000 WO1982000519A1 (en) 1980-08-04 1980-08-04 Temperature compensation for transducer components

Publications (2)

Publication Number Publication Date
SE8202060L true SE8202060L (en) 1982-03-31
SE439837B SE439837B (en) 1985-07-01

Family

ID=22154463

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8202060A SE439837B (en) 1980-08-04 1982-03-31 ELECTRICAL CIRCUIT FOR COMPENSATION OF THE TEMPERATURE RELIABILITY OF A SENSOR ELEMENT IN A CONVERTER SYSTEM

Country Status (4)

Country Link
JP (1) JPS57501043A (en)
CA (1) CA1150525A (en)
SE (1) SE439837B (en)
WO (1) WO1982000519A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817098A1 (en) * 1988-05-19 1989-11-30 Dieter Dipl Ing Bohn Method for the electrical representation of a physical measured variable in the form of an impedance change
DE19951817A1 (en) * 1999-10-27 2001-05-23 Micronas Gmbh Two-wire sensor arrangement
CN103048085B (en) * 2011-10-13 2015-08-19 贾庆锋 Temperature compensation system for pressure sensors and temperature compensation thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841150A (en) * 1973-11-02 1974-10-15 Honeywell Inc Strain gauge transducer signal conditioning circuitry
US4011758A (en) * 1973-12-26 1977-03-15 Texas Instruments Incorporated Magnetostrictive pressure transducer
JPS587182B2 (en) * 1974-03-08 1983-02-08 横河電機株式会社 Saatsu Oudousouchi
US4000643A (en) * 1976-03-29 1977-01-04 Honeywell Inc. Apparatus for producing a compensating voltage
US4233848A (en) * 1978-01-06 1980-11-18 Hitachi, Ltd. Strain gauge pressure transducer apparatus having an improved impedance bridge

Also Published As

Publication number Publication date
WO1982000519A1 (en) 1982-02-18
SE439837B (en) 1985-07-01
JPS57501043A (en) 1982-06-10
CA1150525A (en) 1983-07-26

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