CA1096653A - Accelerometre asservi utilisant des aimants de terre rare - Google Patents

Accelerometre asservi utilisant des aimants de terre rare

Info

Publication number
CA1096653A
CA1096653A CA308,107A CA308107A CA1096653A CA 1096653 A CA1096653 A CA 1096653A CA 308107 A CA308107 A CA 308107A CA 1096653 A CA1096653 A CA 1096653A
Authority
CA
Canada
Prior art keywords
proof mass
servoed
accelerometer
temperature
restoring
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
CA308,107A
Other languages
English (en)
Inventor
Norman J. Klein
Victor B. Corey
Graeme A. Blake
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
Application granted granted Critical
Publication of CA1096653A publication Critical patent/CA1096653A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/006—Details of instruments used for thermal compensation
    • 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)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Electromagnets (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Control Of Position Or Direction (AREA)
  • Micromachines (AREA)
CA308,107A 1977-10-17 1978-07-25 Accelerometre asservi utilisant des aimants de terre rare Expired CA1096653A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84301377A 1977-10-17 1977-10-17
US843,013 1977-10-17

Publications (1)

Publication Number Publication Date
CA1096653A true CA1096653A (fr) 1981-03-03

Family

ID=25288833

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308,107A Expired CA1096653A (fr) 1977-10-17 1978-07-25 Accelerometre asservi utilisant des aimants de terre rare

Country Status (8)

Country Link
JP (1) JPS5459182A (fr)
AU (1) AU3825078A (fr)
CA (1) CA1096653A (fr)
DE (1) DE2833915A1 (fr)
FR (1) FR2406202A1 (fr)
GB (1) GB2006439B (fr)
IT (1) IT1106152B (fr)
SE (1) SE7810693L (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245263A (en) * 1979-05-14 1981-01-13 Honeywell Information Systems Inc. Write precompensation and write encoding for FM and MFM recording
US4250757A (en) * 1979-11-05 1981-02-17 Sundstrand Data Control, Inc. Movable element with position sensing means for transducers
FR2558263B1 (fr) * 1984-01-12 1986-04-25 Commissariat Energie Atomique Accelerometre directif et son procede de fabrication par microlithographie
JPS6117959A (ja) * 1984-07-05 1986-01-25 Japan Aviation Electronics Ind Ltd 加速度計
FR2594957B1 (fr) * 1986-02-21 1989-06-16 Schilling Franz Accelerometre a six degres de liberte a suspension electromagnetique
US5060039A (en) * 1988-01-13 1991-10-22 The Charles Stark Draper Laboratory, Inc. Permanent magnet force rebalance micro accelerometer
FR2637984B1 (fr) * 1988-10-19 1991-01-11 Sagem Accelerometre pendulaire asservi a detection electrostatique
US4933515A (en) * 1989-03-09 1990-06-12 Automotive Systems Laboratory, Inc. Accelerometer with dual-magnet sensing mass
US10161956B2 (en) 2016-04-25 2018-12-25 Honeywell International Inc. Reducing bias in an accelerometer via a pole piece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702073A (en) * 1969-02-28 1972-11-07 Sundstrand Data Control Accelerometer

Also Published As

Publication number Publication date
GB2006439B (en) 1982-01-20
GB2006439A (en) 1979-05-02
SE7810693L (sv) 1979-04-18
DE2833915A1 (de) 1979-04-19
IT7851491A0 (it) 1978-10-13
AU3825078A (en) 1980-01-24
FR2406202A1 (fr) 1979-05-11
IT1106152B (it) 1985-11-11
JPS5459182A (en) 1979-05-12

Similar Documents

Publication Publication Date Title
EP0133695B1 (fr) Système de capteurs pour mesurer des paramètres
US4336718A (en) Control circuit for accelerometer
US3688854A (en) Balance with electromagnetic compensation
EP1830193A1 (fr) Accéléromètre asservi
US4051718A (en) Apparatus for measuring the velocity of low frequency vibrations
US2888256A (en) Accelerometers
US4034819A (en) Electromagnetic compensating balance
US3124962A (en) hirtreiter
US3968850A (en) Electromagnet weighing balance
JPS6126625B2 (fr)
US2367614A (en) Regenerative fluxmeter
US4020687A (en) Electrodynamic force measuring apparatus
US2523297A (en) Frequency meter
US2472127A (en) Temperature compensated vibration pickup
US3789672A (en) Accelerometer
DE2833915A1 (de) Servo-beschleunigungsmesser
US3721984A (en) Magnetometer employing magnetically suspended body
RU2063047C1 (ru) Акселерометр
US3413854A (en) Gravimeter
GB919771A (en) Method and device for measuring forces, applicable especially to automatic weighing
US3477293A (en) Apparatus for measuring terrestrial gravity from a moving vehicle
US3478605A (en) Accelerometer and pickoff system
JPS5946340B2 (ja) 加速度計
Van Nierop A low-cost linear accelerometer
KR820000046Y1 (ko) 영구자석을 이용한 전자저울의 트랜스듀서

Legal Events

Date Code Title Description
MKEX Expiry