GB1555282A - Capacitance measuring circuit - Google Patents

Capacitance measuring circuit

Info

Publication number
GB1555282A
GB1555282A GB7676/78A GB767678A GB1555282A GB 1555282 A GB1555282 A GB 1555282A GB 7676/78 A GB7676/78 A GB 7676/78A GB 767678 A GB767678 A GB 767678A GB 1555282 A GB1555282 A GB 1555282A
Authority
GB
United Kingdom
Prior art keywords
measuring circuit
capacitance measuring
capacitance
circuit
measuring
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.)
Expired
Application number
GB7676/78A
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.)
Sundstrand Data Control Inc
Original Assignee
Sundstrand Data Control 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 US05/702,781 external-priority patent/US4094199A/en
Priority claimed from US05/702,382 external-priority patent/US4131020A/en
Priority claimed from US05/702,389 external-priority patent/US4206400A/en
Application filed by Sundstrand Data Control Inc filed Critical Sundstrand Data Control Inc
Publication of GB1555282A publication Critical patent/GB1555282A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/13—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position
    • G01P15/132—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position with electromagnetic counterbalancing means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Vibration Prevention Devices (AREA)
  • Amplifiers (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Golf Clubs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
GB7676/78A 1976-07-06 1977-05-09 Capacitance measuring circuit Expired GB1555282A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/702,781 US4094199A (en) 1976-07-06 1976-07-06 Accelerometer
US05/702,382 US4131020A (en) 1976-07-06 1976-07-06 Accelerometer
US05/702,389 US4206400A (en) 1976-07-06 1976-07-06 Accelerometer

Publications (1)

Publication Number Publication Date
GB1555282A true GB1555282A (en) 1979-11-07

Family

ID=27418740

Family Applications (3)

Application Number Title Priority Date Filing Date
GB7676/78A Expired GB1555282A (en) 1976-07-06 1977-05-09 Capacitance measuring circuit
GB348/79A Expired GB1555283A (en) 1976-07-06 1977-05-09 Accelerometer
GB19375/77A Expired GB1555281A (en) 1976-07-06 1977-05-09 Accelerometer

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB348/79A Expired GB1555283A (en) 1976-07-06 1977-05-09 Accelerometer
GB19375/77A Expired GB1555281A (en) 1976-07-06 1977-05-09 Accelerometer

Country Status (9)

Country Link
JP (2) JPS6016581B2 (en)
AU (1) AU504091B2 (en)
DE (3) DE2759500C2 (en)
FR (2) FR2375600A1 (en)
GB (3) GB1555282A (en)
IT (1) IT1079895B (en)
NO (2) NO146412C (en)
PL (1) PL126426B1 (en)
SE (1) SE435552B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165483A (en) * 1978-01-31 1979-08-21 Sundstrand Data Control, Inc. Capacitive pick-off circuit
US4167697A (en) * 1978-02-10 1979-09-11 Sundstrand Data Control, Inc. Capacitive pick-off circuit
US4441366A (en) * 1981-07-14 1984-04-10 Sundstrand Data Control, Inc. Flexure with electrical conductor
JPS5890174A (en) * 1981-11-25 1983-05-28 Tokyo Keiki Co Ltd Accelerometer
JPS59196633U (en) * 1983-06-15 1984-12-27 三菱重工業株式会社 scaffolding equipment
JPS60205370A (en) * 1984-03-30 1985-10-16 Tokyo Keiki Co Ltd Accelerometer
JPS6117959A (en) * 1984-07-05 1986-01-25 Japan Aviation Electronics Ind Ltd Accelerometer
JPS638565A (en) * 1986-06-27 1988-01-14 Mitsubishi Electric Corp Semiconductor acceleration detector
GB2222680B (en) * 1988-03-15 1991-09-11 Baroid Technology Inc Accelerometers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995935A (en) * 1948-11-01 1961-08-15 North American Aviation Inc Accelerometer
US3209601A (en) 1962-08-16 1965-10-05 Gen Precision Inc Quartz accelerometer
US3213692A (en) * 1963-01-10 1965-10-26 Litton Systems Inc Cylindrical torque balance accelerometers
US3339419A (en) * 1964-07-02 1967-09-05 North American Aviation Inc Accelerometer
JPS4020359Y1 (en) * 1964-07-11 1965-07-15
DE1919005A1 (en) * 1968-04-16 1970-04-16 Lucas Industries Ltd Display circuit with capacitive probe
JPS4415398Y1 (en) * 1968-11-20 1969-07-03
US3618401A (en) * 1969-08-25 1971-11-09 Litton Systems Inc Accelerometer
US3641414A (en) * 1970-10-16 1972-02-08 United Control Corp Transducer system with floating input circuit and constant current output electronics
DE2164321B2 (en) * 1971-12-23 1974-01-03 Sundstrand Corp., Rockford, Ill. (V.St.A.) Servo accelerometer
US3797321A (en) * 1972-05-08 1974-03-19 Systron Donner Corp Pivot mechanism with electronic dither circuit
US3897690A (en) * 1973-01-15 1975-08-05 Systron Donner Corp Miniature inertial grade high shock and vibration capability accelerometer and method with axis alignment and stability features
US3948107A (en) * 1973-07-31 1976-04-06 Systron Donner Corporation Velocity transducer

Also Published As

Publication number Publication date
DE2723244C3 (en) 1981-08-13
JPS6016581B2 (en) 1985-04-26
DE2723244B2 (en) 1980-12-11
FR2375600A1 (en) 1978-07-21
PL199415A1 (en) 1978-02-13
FR2375603A1 (en) 1978-07-21
NO146412B (en) 1982-06-14
GB1555281A (en) 1979-11-07
FR2375603B1 (en) 1980-08-29
GB1555283A (en) 1979-11-07
AU2248777A (en) 1978-08-31
JPS6372561U (en) 1988-05-14
NO772177L (en) 1978-01-09
NO146412C (en) 1982-09-22
NO814342L (en) 1978-01-09
FR2375600B1 (en) 1980-04-25
PL126426B1 (en) 1983-08-31
SE7706979L (en) 1978-01-07
DE2759499C2 (en) 1984-10-11
DE2759500C2 (en) 1986-01-16
AU504091B2 (en) 1979-10-04
DE2723244A1 (en) 1978-01-12
JPS536082A (en) 1978-01-20
SE435552B (en) 1984-10-01
IT1079895B (en) 1985-05-13

Similar Documents

Publication Publication Date Title
US4295091B1 (en) Circuit for measuring low capacitances
JPS52120666A (en) Sampleeholding circuit
JPS5388745A (en) Inspection circuit
JPS52106612A (en) Twoowire extension circuit
JPS5356071A (en) Wattthour meter circuit
JPS52132819A (en) Electronic instrument
JPS5368821A (en) Currenttbalancing circuit
JPS52137318A (en) Electronic instrument
GB1555282A (en) Capacitance measuring circuit
JPS5326969A (en) Combined testing circuit unit
JPS5295936A (en) Detecting circuit
JPS5374058A (en) Digital measuring circuit
JPS52154076A (en) Proximity detection circuit
JPS533316A (en) Electronic instrument
JPS535557A (en) Oneeshot circuit
JPS52146210A (en) Electronic instrument
JPS53101477A (en) Electronic instrument
JPS5372444A (en) Detecting circuit
JPS52151507A (en) Tuning detecting circuit
JPS5341213A (en) Electronic instrument
JPS5289906A (en) Electronic instrument
JPS52146212A (en) Electronic instrument
JPS52141219A (en) Electronic instrument
GB1542833A (en) Measuring arrangements
JPS52109172A (en) Softttouch detection circuit

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920509