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AU514456B2 - Capacitance measuring circuit for accelerometer - Google Patents

Capacitance measuring circuit for accelerometer

Info

Publication number
AU514456B2
AU514456B2 AU45673/79A AU4567379A AU514456B2 AU 514456 B2 AU514456 B2 AU 514456B2 AU 45673/79 A AU45673/79 A AU 45673/79A AU 4567379 A AU4567379 A AU 4567379A AU 514456 B2 AU514456 B2 AU 514456B2
Authority
AU
Australia
Prior art keywords
accelerometer
measuring circuit
capacitance measuring
capacitance
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.)
Ceased
Application number
AU45673/79A
Other versions
AU4567379A (en
Inventor
Frederick V. Holdren
Hans W. Hugli
John M. Kubler
Martin E. Larson
Michael M. Vanschoiack
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
Application filed by Sundstrand Data Control Inc filed Critical Sundstrand Data Control Inc
Priority to AU45673/79A priority Critical patent/AU514456B2/en
Publication of AU4567379A publication Critical patent/AU4567379A/en
Application granted granted Critical
Publication of AU514456B2 publication Critical patent/AU514456B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G01P15/125—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 capacitive pick-up
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
AU45673/79A 1976-07-06 1979-03-30 Capacitance measuring circuit for accelerometer Ceased AU514456B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45673/79A AU514456B2 (en) 1976-07-06 1979-03-30 Capacitance measuring circuit for accelerometer

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US702389 1976-07-06
US702781 1976-07-06
US702385 1976-07-06
AU45673/79A AU514456B2 (en) 1976-07-06 1979-03-30 Capacitance measuring circuit for accelerometer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU22487/77A Division AU504091B2 (en) 1976-07-06 1977-02-21 Accelerometer

Publications (2)

Publication Number Publication Date
AU4567379A AU4567379A (en) 1979-08-09
AU514456B2 true AU514456B2 (en) 1981-02-12

Family

ID=3732766

Family Applications (1)

Application Number Title Priority Date Filing Date
AU45673/79A Ceased AU514456B2 (en) 1976-07-06 1979-03-30 Capacitance measuring circuit for accelerometer

Country Status (1)

Country Link
AU (1) AU514456B2 (en)

Also Published As

Publication number Publication date
AU4567379A (en) 1979-08-09

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