JPS57161506A - Converter for physical quantity - Google Patents

Converter for physical quantity

Info

Publication number
JPS57161506A
JPS57161506A JP4673881A JP4673881A JPS57161506A JP S57161506 A JPS57161506 A JP S57161506A JP 4673881 A JP4673881 A JP 4673881A JP 4673881 A JP4673881 A JP 4673881A JP S57161506 A JPS57161506 A JP S57161506A
Authority
JP
Japan
Prior art keywords
output
amplifier
oscillation
capacities
physical quantity
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
JP4673881A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0134326B2 (enrdf_load_stackoverflow
Inventor
Tadashi Azegami
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin 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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP4673881A priority Critical patent/JPS57161506A/ja
Priority to US06/275,510 priority patent/US4387601A/en
Priority to DE19813125664 priority patent/DE3125664A1/de
Priority to FR8112976A priority patent/FR2486232B1/fr
Publication of JPS57161506A publication Critical patent/JPS57161506A/ja
Publication of JPH0134326B2 publication Critical patent/JPH0134326B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
    • 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
    • G01L9/12—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 capacitance, i.e. electric circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP4673881A 1980-07-01 1981-03-30 Converter for physical quantity Granted JPS57161506A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4673881A JPS57161506A (en) 1981-03-30 1981-03-30 Converter for physical quantity
US06/275,510 US4387601A (en) 1980-07-01 1981-06-19 Capacitance type displacement conversion device
DE19813125664 DE3125664A1 (de) 1980-07-01 1981-06-30 Verstellwandlervorrichtung
FR8112976A FR2486232B1 (fr) 1980-07-01 1981-07-01 Dispositif de conversion de deplacement de type capacitif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4673881A JPS57161506A (en) 1981-03-30 1981-03-30 Converter for physical quantity

Publications (2)

Publication Number Publication Date
JPS57161506A true JPS57161506A (en) 1982-10-05
JPH0134326B2 JPH0134326B2 (enrdf_load_stackoverflow) 1989-07-19

Family

ID=12755666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4673881A Granted JPS57161506A (en) 1980-07-01 1981-03-30 Converter for physical quantity

Country Status (1)

Country Link
JP (1) JPS57161506A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121312A (ja) * 1985-11-22 1987-06-02 Nitto Kohki Co Ltd 静電容量−電圧変換回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133263A (en) * 1976-04-30 1977-11-08 Shimadzu Corp Static capacity/dc voltage converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133263A (en) * 1976-04-30 1977-11-08 Shimadzu Corp Static capacity/dc voltage converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121312A (ja) * 1985-11-22 1987-06-02 Nitto Kohki Co Ltd 静電容量−電圧変換回路

Also Published As

Publication number Publication date
JPH0134326B2 (enrdf_load_stackoverflow) 1989-07-19

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