FR2419510A1 - EQUIPMENT FOR COMPENSATION OF THE EFFECTS OF EXTERNAL CONDITIONS ON THE SIGNALS OF ELECTRICAL DEVICES - Google Patents

EQUIPMENT FOR COMPENSATION OF THE EFFECTS OF EXTERNAL CONDITIONS ON THE SIGNALS OF ELECTRICAL DEVICES

Info

Publication number
FR2419510A1
FR2419510A1 FR7906018A FR7906018A FR2419510A1 FR 2419510 A1 FR2419510 A1 FR 2419510A1 FR 7906018 A FR7906018 A FR 7906018A FR 7906018 A FR7906018 A FR 7906018A FR 2419510 A1 FR2419510 A1 FR 2419510A1
Authority
FR
France
Prior art keywords
compensation
signals
effects
electrical devices
equipment
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
FR7906018A
Other languages
French (fr)
Other versions
FR2419510B1 (en
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.)
FKI Industries Inc
Original Assignee
American Chain and Cable Co Inc
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
Priority claimed from US05/885,079 external-priority patent/US4172388A/en
Priority claimed from US05/886,118 external-priority patent/US4172389A/en
Priority claimed from US05/893,937 external-priority patent/US4174639A/en
Application filed by American Chain and Cable Co Inc filed Critical American Chain and Cable Co Inc
Publication of FR2419510A1 publication Critical patent/FR2419510A1/en
Application granted granted Critical
Publication of FR2419510B1 publication Critical patent/FR2419510B1/fr
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
    • 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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
    • G01L9/0052—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of piezoresistive elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms
    • 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
    • G01L9/06—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 piezo-resistive devices
    • G01L9/065—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 piezo-resistive devices with temperature compensating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne la compensation des effets et conditions extérieurs sur les signaux de dispositifs électriques. Elle se rapporte à un appareil destiné à assurer la compensation des effets de la température et des contraintes sur les signaux de jauges de déformation à semi-conducteurs. La compensation de température à trois températures est assurée par un processus d'itération qui permet la répartition optimale d'une résistance de compensation de plage entre deux composants. La compensation de plage est assurée par la variation de la tension transmise aux jauges de déformation. Application aux jauges de déformation utilisées pour les mesures de pressions.The invention relates to compensation for external effects and conditions on signals from electrical devices. It relates to an apparatus for compensating the effects of temperature and stress on the signals of semiconductor strain gauges. The temperature compensation at three temperatures is provided by an iteration process that allows the optimal distribution of a span compensation resistance between two components. The range compensation is provided by the variation of the voltage transmitted to the strain gauges. Application to strain gauges used for pressure measurements.

FR7906018A 1978-03-09 1979-03-08 EQUIPMENT FOR COMPENSATION OF THE EFFECTS OF EXTERNAL CONDITIONS ON THE SIGNALS OF ELECTRICAL DEVICES Granted FR2419510A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/885,079 US4172388A (en) 1978-03-09 1978-03-09 Differential pressure sensor with dual level overrange protection
US05/886,118 US4172389A (en) 1978-03-13 1978-03-13 Temperature compensated bridge circuit
US05/893,937 US4174639A (en) 1978-04-06 1978-04-06 Bridge circuits

Publications (2)

Publication Number Publication Date
FR2419510A1 true FR2419510A1 (en) 1979-10-05
FR2419510B1 FR2419510B1 (en) 1983-12-30

Family

ID=27420518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906018A Granted FR2419510A1 (en) 1978-03-09 1979-03-08 EQUIPMENT FOR COMPENSATION OF THE EFFECTS OF EXTERNAL CONDITIONS ON THE SIGNALS OF ELECTRICAL DEVICES

Country Status (3)

Country Link
DE (1) DE2823875A1 (en)
FR (1) FR2419510A1 (en)
GB (2) GB1604940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503375A1 (en) * 1981-04-03 1982-10-08 Lucas Industries Ltd TEMPERATURE COMPENSATION METHOD FOR A RESISTANCE BRIDGE CIRCUIT
EP1286148A1 (en) * 2001-02-08 2003-02-26 TGK CO., Ltd. Method for adjusting pressure sensor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385525A (en) * 1981-09-18 1983-05-31 Dwyer Instruments, Inc. Strain gauge pressure transducer
US4890497A (en) * 1988-08-25 1990-01-02 Dwyer Instruments, Inc. Differential pressure gauge transmitter
EP0764839A1 (en) * 1995-09-22 1997-03-26 Endress + Hauser GmbH + Co. Pressure or differential pressure measuring device
DE102006047474B4 (en) * 2006-10-05 2013-12-05 Endress + Hauser Gmbh + Co. Kg Pressure gauge for process measurement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245252A (en) * 1961-11-15 1966-04-12 Kulite Bytrex Corp Temperature compensated semiconductor strain gage unit
DE1448968B1 (en) * 1964-12-23 1971-02-04 Siemens Ag Transmitter with a circuit of strain-sensitive resistors arranged on an expansion body
DE1773540A1 (en) * 1968-05-31 1971-04-29 Hottinger Messtechnik Baldwin Circuit arrangement for electromechanical transducers with strain gauges
US3913392A (en) * 1973-03-15 1975-10-21 Toyoda Chuo Kenkyusho Kk Physical quantity detecting circuit
US3967188A (en) * 1973-05-24 1976-06-29 Bell & Howell Company Temperature compensation circuit for sensor of physical variables such as temperature and pressure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448607A (en) * 1965-10-18 1969-06-10 Microdot Inc Strain gauge temperature compensation system
US3859594A (en) * 1967-08-21 1975-01-07 Rosemount Inc Two wire current transmitter responsive to a resistance sensor input signal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245252A (en) * 1961-11-15 1966-04-12 Kulite Bytrex Corp Temperature compensated semiconductor strain gage unit
DE1448968B1 (en) * 1964-12-23 1971-02-04 Siemens Ag Transmitter with a circuit of strain-sensitive resistors arranged on an expansion body
DE1773540A1 (en) * 1968-05-31 1971-04-29 Hottinger Messtechnik Baldwin Circuit arrangement for electromechanical transducers with strain gauges
US3913392A (en) * 1973-03-15 1975-10-21 Toyoda Chuo Kenkyusho Kk Physical quantity detecting circuit
US3967188A (en) * 1973-05-24 1976-06-29 Bell & Howell Company Temperature compensation circuit for sensor of physical variables such as temperature and pressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503375A1 (en) * 1981-04-03 1982-10-08 Lucas Industries Ltd TEMPERATURE COMPENSATION METHOD FOR A RESISTANCE BRIDGE CIRCUIT
EP1286148A1 (en) * 2001-02-08 2003-02-26 TGK CO., Ltd. Method for adjusting pressure sensor
EP1286148A4 (en) * 2001-02-08 2008-05-07 Tgk Co Ltd Method for adjusting pressure sensor

Also Published As

Publication number Publication date
GB1604939A (en) 1981-12-16
GB1604940A (en) 1981-12-16
DE2823875A1 (en) 1979-09-13
FR2419510B1 (en) 1983-12-30

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Legal Events

Date Code Title Description
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