GB1163210A - Temperature compensating of Electromagnetic systems of Measuring Instruments - Google Patents

Temperature compensating of Electromagnetic systems of Measuring Instruments

Info

Publication number
GB1163210A
GB1163210A GB57688/68A GB5768868A GB1163210A GB 1163210 A GB1163210 A GB 1163210A GB 57688/68 A GB57688/68 A GB 57688/68A GB 5768868 A GB5768868 A GB 5768868A GB 1163210 A GB1163210 A GB 1163210A
Authority
GB
United Kingdom
Prior art keywords
temperature
gap
ring
magnetic circuit
magnet
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
GB57688/68A
Inventor
Robert Edward Stewart
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.)
Litton Industries Inc
Original Assignee
Litton Industries 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 to NL136155D priority Critical patent/NL136155C/xx
Priority to US578172A priority patent/US3498138A/en
Application filed by Litton Industries Inc filed Critical Litton Industries Inc
Priority to GB42892/67A priority patent/GB1163209A/en
Priority to GB57688/68A priority patent/GB1163210A/en
Priority to DE19671673402 priority patent/DE1673402B1/en
Priority to NL6713054A priority patent/NL6713054A/xx
Priority to FR122705A priority patent/FR1538245A/en
Priority to BE704569D priority patent/BE704569A/xx
Publication of GB1163210A publication Critical patent/GB1163210A/en
Priority to NL7212862.A priority patent/NL158616B/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
    • G01R17/06—Automatic balancing arrangements
    • G01R17/08—Automatic balancing arrangements in which a force or torque representing the measured value is balanced by a force or torque representing the reference value

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gyroscopes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)

Abstract

1,163,210. Temperature compensated electromagnet. LITTON INDUSTRIES Inc. 20 Sept., 1967, No. 57688/68. Divided out of 1,163,209. Heading H1P. Temperature compensation of the electromagnetic system of a measuring instrument comprising a magnetic circuit 50, 78, Fig. 8, including a permanent magnet 50, whose field strength changes with temperature, and a coil 82 suspended in a gap of the circuit, is provided by a member 52, see also Fig. 13, whose dimensions change with temperature and which is arranged to bear against a part 78 of the magnetic circuit defining the above gap so that the width of the gap is altered with changing tem perature. As described the instrument is the accelerometer described and claimed in the parent Specification 1,163,209 (see also Division G1), in which an annular body 84, pivotable under acceleration about a diametral axis, is continuously restored to its null position by the interaction between the coil 82, mounted on the body and supplied with a current dependent on the displacement of the body from its null position, and the magnetic circuit 50, 78. The magnet 50, e.g. of aluminium nickel alloy, is magnetized in a direction perpendicular to the pivot axis of the body 84 and the return path of the magnetic flux is formed by the ring 78. Projections 79, 80, Fig. 13, on the compensating member 52 which bear against the walls of the ring 78 are arranged at the ends of a diameter parallel to the pivot axis of the body 84 so that with increasing temperature the ring 78 is distorted elliptically to reduce the gap at the poles of the magnet 50.
GB57688/68A 1966-09-09 1967-09-20 Temperature compensating of Electromagnetic systems of Measuring Instruments Expired GB1163210A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL136155D NL136155C (en) 1966-09-09
US578172A US3498138A (en) 1966-09-09 1966-09-09 Accelerometer
GB42892/67A GB1163209A (en) 1966-09-09 1967-09-20 Accelerometer
GB57688/68A GB1163210A (en) 1966-09-09 1967-09-20 Temperature compensating of Electromagnetic systems of Measuring Instruments
DE19671673402 DE1673402B1 (en) 1966-09-09 1967-09-23 Accelerometer
NL6713054A NL6713054A (en) 1966-09-09 1967-09-25
FR122705A FR1538245A (en) 1966-09-09 1967-09-28 Accelerometer
BE704569D BE704569A (en) 1966-09-09 1967-10-02
NL7212862.A NL158616B (en) 1966-09-09 1972-09-22 TEMPERATURE COMPENSATED, ELECTROMAGNETICALLY OPERATING MEASUREMENT INSTRUMENT.

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US57817266A 1966-09-09 1966-09-09
GB42892/67A GB1163209A (en) 1966-09-09 1967-09-20 Accelerometer
GB57688/68A GB1163210A (en) 1966-09-09 1967-09-20 Temperature compensating of Electromagnetic systems of Measuring Instruments
DEL0057481 1967-09-23
NL6713054A NL6713054A (en) 1966-09-09 1967-09-25
FR122705A FR1538245A (en) 1966-09-09 1967-09-28 Accelerometer
NL7212862.A NL158616B (en) 1966-09-09 1972-09-22 TEMPERATURE COMPENSATED, ELECTROMAGNETICALLY OPERATING MEASUREMENT INSTRUMENT.

Publications (1)

Publication Number Publication Date
GB1163210A true GB1163210A (en) 1969-09-04

Family

ID=27561665

Family Applications (2)

Application Number Title Priority Date Filing Date
GB42892/67A Expired GB1163209A (en) 1966-09-09 1967-09-20 Accelerometer
GB57688/68A Expired GB1163210A (en) 1966-09-09 1967-09-20 Temperature compensating of Electromagnetic systems of Measuring Instruments

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB42892/67A Expired GB1163209A (en) 1966-09-09 1967-09-20 Accelerometer

Country Status (6)

Country Link
US (1) US3498138A (en)
BE (1) BE704569A (en)
DE (1) DE1673402B1 (en)
FR (1) FR1538245A (en)
GB (2) GB1163209A (en)
NL (3) NL6713054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112798993A (en) * 2021-04-08 2021-05-14 中国电子科技集团公司第九研究所 Device and method for measuring temperature coefficient of permanent magnet material based on accelerometer

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182187A (en) * 1978-04-24 1980-01-08 Sundstrand Data Control, Inc. Force balancing assembly for transducers
US4284096A (en) * 1980-06-04 1981-08-18 Ford Motor Company Automatic transmission governor having deceleration sensitive pressure switching feature
US4338819A (en) * 1980-09-08 1982-07-13 Systron-Donner Corporation Accelerometer including an overall arrangement for reducing temperature related errors
US4399700A (en) * 1981-07-14 1983-08-23 Sundstrand Data Control, Inc. Force transducer flexure with conductors on surfaces in the neutral bending plane
US4394405A (en) * 1981-07-14 1983-07-19 Sundstrand Data Control, Inc. Method of making force transducer flexure
US4441366A (en) * 1981-07-14 1984-04-10 Sundstrand Data Control, Inc. Flexure with electrical conductor
US4400979A (en) * 1981-07-14 1983-08-30 Sundstrand Data Control, Inc. Force transducer flexure with conductors on surfaces in the neutral bending plane
US4699006A (en) * 1984-03-19 1987-10-13 The Charles Stark Draper Laboratory, Inc. Vibratory digital integrating accelerometer
US4736629A (en) * 1985-12-20 1988-04-12 Silicon Designs, Inc. Micro-miniature accelerometer
US4872342A (en) * 1986-06-27 1989-10-10 Sundstrand Data Control, Inc. Translational accelerometer and accelerometer assembly method
DE3785736T2 (en) * 1986-06-27 1993-08-19 Sundstrand Data Control TRANSLATION ACCELERATOR.
DE3625411A1 (en) * 1986-07-26 1988-02-04 Messerschmitt Boelkow Blohm CAPACITIVE ACCELERATION SENSOR
US4987780A (en) * 1987-11-16 1991-01-29 Litton Systems, Inc. Integrated accelerometer assembly
JP2789218B2 (en) * 1989-05-29 1998-08-20 株式会社トキメック Accelerometer
US5253526A (en) * 1990-05-30 1993-10-19 Copal Company Limited Capacitive acceleration sensor with free diaphragm
US5249465A (en) * 1990-12-11 1993-10-05 Motorola, Inc. Accelerometer utilizing an annular mass
US5220835A (en) * 1991-09-12 1993-06-22 Ford Motor Company Torsion beam accelerometer
US5404749A (en) * 1993-04-07 1995-04-11 Ford Motor Company Boron doped silicon accelerometer sense element
US6199874B1 (en) 1993-05-26 2001-03-13 Cornell Research Foundation Inc. Microelectromechanical accelerometer for automotive applications
US5610335A (en) * 1993-05-26 1997-03-11 Cornell Research Foundation Microelectromechanical lateral accelerometer
US5600067A (en) * 1993-08-18 1997-02-04 Alliedsignal, Inc. Torque wire thermal strain relief
US5640133A (en) * 1995-06-23 1997-06-17 Cornell Research Foundation, Inc. Capacitance based tunable micromechanical resonators
US5978972A (en) * 1996-06-14 1999-11-09 Johns Hopkins University Helmet system including at least three accelerometers and mass memory and method for recording in real-time orthogonal acceleration data of a head
US5644086A (en) * 1996-10-08 1997-07-01 Tokyo Gas Co., Ltd. Preloaded linear beam vibration sensor
US5914553A (en) * 1997-06-16 1999-06-22 Cornell Research Foundation, Inc. Multistable tunable micromechanical resonators
US10180445B2 (en) 2016-06-08 2019-01-15 Honeywell International Inc. Reducing bias in an accelerometer via current adjustment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959459A (en) * 1953-08-04 1960-11-08 James J Ryan Flight recorder
GB783104A (en) * 1955-01-13 1957-09-18 Mini Of Supply Improvements in accelerometers
US3339419A (en) * 1964-07-02 1967-09-05 North American Aviation Inc Accelerometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112798993A (en) * 2021-04-08 2021-05-14 中国电子科技集团公司第九研究所 Device and method for measuring temperature coefficient of permanent magnet material based on accelerometer
CN112798993B (en) * 2021-04-08 2021-07-13 中国电子科技集团公司第九研究所 Device and method for measuring temperature coefficient of permanent magnet material based on accelerometer

Also Published As

Publication number Publication date
NL158616B (en) 1978-11-15
GB1163209A (en) 1969-09-04
US3498138A (en) 1970-03-03
NL6713054A (en) 1969-03-27
DE1673402B1 (en) 1970-12-03
FR1538245A (en) 1968-08-30
NL7212862A (en) 1972-12-27
BE704569A (en) 1968-04-02
NL136155C (en)

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Legal Events

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