JPS54115175A - Combined circuit comprising capacitive transducer and demodulator - Google Patents

Combined circuit comprising capacitive transducer and demodulator

Info

Publication number
JPS54115175A
JPS54115175A JP1555279A JP1555279A JPS54115175A JP S54115175 A JPS54115175 A JP S54115175A JP 1555279 A JP1555279 A JP 1555279A JP 1555279 A JP1555279 A JP 1555279A JP S54115175 A JPS54115175 A JP S54115175A
Authority
JP
Japan
Prior art keywords
demodulator
capacitive transducer
combined circuit
combined
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.)
Pending
Application number
JP1555279A
Other languages
Japanese (ja)
Inventor
Ii Rii Chien
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Publication of JPS54115175A publication Critical patent/JPS54115175A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/12Mechanical 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
    • G01D5/14Mechanical 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
    • G01D5/24Mechanical 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
    • G01D5/241Mechanical 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
    • G01D5/2417Mechanical 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring 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
    • G01L9/0041Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0072Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
    • G01L9/0075Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring 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
    • G01L9/0082Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means
    • G01L9/0086Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means using variations in capacitance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring 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
    • G01L9/12Measuring 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
    • G01L9/125Measuring 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 with temperature compensating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP1555279A 1978-02-15 1979-02-15 Combined circuit comprising capacitive transducer and demodulator Pending JPS54115175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87805678A 1978-02-15 1978-02-15

Publications (1)

Publication Number Publication Date
JPS54115175A true JPS54115175A (en) 1979-09-07

Family

ID=25371286

Family Applications (2)

Application Number Title Priority Date Filing Date
JP1555279A Pending JPS54115175A (en) 1978-02-15 1979-02-15 Combined circuit comprising capacitive transducer and demodulator
JP1987172089U Expired JPS6344731Y2 (en) 1978-02-15 1987-11-12

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1987172089U Expired JPS6344731Y2 (en) 1978-02-15 1987-11-12

Country Status (8)

Country Link
JP (2) JPS54115175A (en)
AU (1) AU521105B2 (en)
CA (1) CA1123225A (en)
DE (1) DE2905463A1 (en)
ES (1) ES477752A1 (en)
FR (1) FR2417887B1 (en)
GB (1) GB2015162B (en)
IT (1) IT1111910B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295376A (en) * 1978-12-01 1981-10-20 Besco Industries, Inc. Force responsive transducer
US4288835A (en) * 1979-04-16 1981-09-08 The Bendix Corporation Pressure sensor
US4322977A (en) * 1980-05-27 1982-04-06 The Bendix Corporation Pressure measuring system
US4509007A (en) * 1982-09-30 1985-04-02 Ibm Corporation Differential sensor measuring apparatus and method including sensor compensator circuitry
FR2632069B1 (en) * 1988-05-30 1990-12-14 Garcia Manuel IMPEDANCE VARIATION SPEED DETECTION SENSOR OR IMPEDANCE VARIATION SPEED

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869676A (en) * 1971-12-20 1975-03-04 Nasa Diode-quad bridge circuit means
JPS5144662A (en) * 1974-10-08 1976-04-16 Masakichi Kawahara
JPS5252676A (en) * 1975-10-24 1977-04-27 Yokogawa Hokushin Electric Corp Capacity-to-electricity converter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271669A (en) * 1962-12-04 1966-09-06 Rosemount Eng Co Ltd Alternating current diode loop capacitance measurement circuits
US3318153A (en) * 1962-12-04 1967-05-09 Rosemount Eng Co Ltd Diode loop capacitor comparative circuit including a pair of transformer windings coupled in phase
GB1110943A (en) * 1963-10-01 1968-04-24 Sangamo Weston Improvements in or relating to electrical bridge networks
US3646538A (en) * 1969-10-27 1972-02-29 Rosemount Eng Co Ltd Transducer circuitry for converting a capacitance signal to a dc current signal
US3648165A (en) * 1970-09-24 1972-03-07 Sun Oil Co Capacitance-measuring apparatus including means maintaining the voltage across the unknown capacitance constant
US3869672A (en) * 1972-05-13 1975-03-04 Int Standard Electric Corp Method and arrangements for the digital control of operating functions, radio and television receivers
DE2314754C2 (en) * 1973-03-24 1979-02-08 Hottinger Baldwin Messtechnik Gmbh, 6100 Darmstadt Electrical multi-point measuring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869676A (en) * 1971-12-20 1975-03-04 Nasa Diode-quad bridge circuit means
US3883812A (en) * 1971-12-20 1975-05-13 Nasa Diode-quad bridge circuit means
JPS5144662A (en) * 1974-10-08 1976-04-16 Masakichi Kawahara
JPS5252676A (en) * 1975-10-24 1977-04-27 Yokogawa Hokushin Electric Corp Capacity-to-electricity converter

Also Published As

Publication number Publication date
IT1111910B (en) 1986-01-13
FR2417887B1 (en) 1985-06-07
JPS6344731Y2 (en) 1988-11-21
AU4365579A (en) 1979-08-23
DE2905463A1 (en) 1979-08-16
ES477752A1 (en) 1979-10-16
JPS6396415U (en) 1988-06-22
AU521105B2 (en) 1982-03-18
CA1123225A (en) 1982-05-11
IT7920175A0 (en) 1979-02-14
GB2015162A (en) 1979-09-05
GB2015162B (en) 1982-08-18
FR2417887A1 (en) 1979-09-14
DE2905463C2 (en) 1989-12-28

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