GB1070614A – Accelerometer
– Google Patents
GB1070614A – Accelerometer
– Google Patents
Accelerometer
Info
Publication number
GB1070614A
GB1070614A
GB26877/65A
GB2687765A
GB1070614A
GB 1070614 A
GB1070614 A
GB 1070614A
GB 26877/65 A
GB26877/65 A
GB 26877/65A
GB 2687765 A
GB2687765 A
GB 2687765A
GB 1070614 A
GB1070614 A
GB 1070614A
Authority
GB
United Kingdom
Prior art keywords
proof mass
base member
region
conductive
line
Prior art date
1964-07-02
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
GB26877/65A
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.)
North American Aviation Corp
Original Assignee
North American Aviation 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.)
1964-07-02
Filing date
1965-06-24
Publication date
1967-06-01
1965-06-24
Application filed by North American Aviation Corp
filed
Critical
North American Aviation Corp
1967-06-01
Publication of GB1070614A
publication
Critical
patent/GB1070614A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1,070,614. Accelerometers. NORTH AMERICAN AVIATION, Inc. June 24, 1965 [July 2, 1964], No.26877/65. Heading G1N. An accelerometer includes a proof mass 71 cantilevered from a base member 72 which is itself cantilevered in the opposite direction from a support. The proof mass, which is of insulating material, carries concentric conductive portions 86, 87 on each face, connected to conductive portions such as 87a on the base member. Coil assemblies 50, 60 are mounted on opposite sides of proof mass 71 by means of a conductive bolt 54 which connects the coils in series. One end of each coil is connected through the adjacent conductive region 87 and the corresponding region 87a to external terminals. On each side of the proof mass lies an electrically conductive magnetic member 30, 40, each consisting of a cylindrical core part 31, 41, a permanent magnet 36, 46 and a polepiece 37, 47, defining an annular air gap within which the corresponding coil assembly 50, 60 lies. Clamped between flanges 33, 43 and base member 72 are substantially semicircular shims 39, 49, the ends of which lie on a line A n passing to one side of the centre of the proof mass so that equal portions of conductive regions 86, 87 lie on each side of line A n . The left hand portion of base member 72 is thus clamped and the right hand portion is cantilevered about line A n . In normal operation under vertical acceleration the proof mass 71 pivots about region 73, 83 and the capacitances between flange 33 and region 86 and between flange 43 and region 76, on the other side of disc 71, vary and unbalance a bridge circuit. The unbalance signal is detected and used to vary the direct current flowing in coils 52, 62 to restore the proof mass towards its undeflected position. If horizontal accelerations are present distortion of the base member 72 is confined to pivoting about line A n which has no effect on the capacitances between flanges 33, 43 and regions 76, 86.
GB26877/65A
1964-07-02
1965-06-24
Accelerometer
Expired
GB1070614A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US379931A
US3339419A
(en)
1964-07-02
1964-07-02
Accelerometer
Publications (1)
Publication Number
Publication Date
GB1070614A
true
GB1070614A
(en)
1967-06-01
Family
ID=23499279
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB26877/65A
Expired
GB1070614A
(en)
1964-07-02
1965-06-24
Accelerometer
Country Status (4)
Country
Link
US
(1)
US3339419A
(en)
DE
(1)
DE1523219B1
(en)
FR
(1)
FR1438068A
(en)
GB
(1)
GB1070614A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2421083A
(en)
*
2004-12-09
2006-06-14
Boeing Co
Magnetic Null Accelerometer
Families Citing this family (31)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL136155C
(en)
*
1966-09-09
US3808697A
(en)
*
1968-04-22
1974-05-07
E Hall
Inclinometer
US3702073A
(en)
*
1969-02-28
1972-11-07
Sundstrand Data Control
Accelerometer
US3709042A
(en)
*
1969-05-14
1973-01-09
S Lee
Capacitance accelerometer
US3710629A
(en)
*
1970-07-22
1973-01-16
Singer Co
Three-axis accelerometer
US3789672A
(en)
*
1970-11-12
1974-02-05
Singer General Precision
Accelerometer
AU504091B2
(en)
*
1976-07-06
1979-10-04
Sundstrand Data Control, Inc.
Accelerometer
US4043204A
(en)
*
1976-08-16
1977-08-23
The United States Of America As Represented By The Secretary Of The Army
Magnetic fluid bearing accelerometer
US4182187A
(en)
*
1978-04-24
1980-01-08
Sundstrand Data Control, Inc.
Force balancing assembly for transducers
AU524751B2
(en)
*
1978-05-15
1982-09-30
Sundstrand Data Control, Inc.
Movable element with position sensing means
US4250757A
(en)
*
1979-11-05
1981-02-17
Sundstrand Data Control, Inc.
Movable element with position sensing means for transducers
US4400979A
(en)
*
1981-07-14
1983-08-30
Sundstrand Data Control, Inc.
Force transducer flexure with conductors on surfaces in the neutral bending plane
US4441366A
(en)
*
1981-07-14
1984-04-10
Sundstrand Data Control, Inc.
Flexure with electrical conductor
US4399700A
(en)
*
1981-07-14
1983-08-23
Sundstrand Data Control, Inc.
Force transducer flexure with conductors on surfaces in the neutral bending plane
US4398418A
(en)
*
1981-08-13
1983-08-16
Rockwell International Corporation
Three-axis accelerometer having improved magnet configuration
US4414848A
(en)
*
1981-08-13
1983-11-15
Rockwell International Corporation
Three-axis accelerometer
US4372520A
(en)
*
1981-08-13
1983-02-08
Rockwell International Corporation
Suspension for three-axis accelerometer
US4372162A
(en)
*
1981-08-13
1983-02-08
Rockwell International Corporation
Three-axis accelerometer having dynamic bias compensation
US4398417A
(en)
*
1981-08-13
1983-08-16
Rockwell International Corporation
Three-axis accelerometer having flexure bearing with overload protection
FR2560997B1
(en)
*
1984-03-06
1987-06-05
Sfena
ACCELEROMETRIC SENSOR WITH PLANE PENDULAR STRUCTURE
US4555944A
(en)
*
1984-05-01
1985-12-03
Sundstrand Data Control, Inc.
Method and apparatus for producing a controlled preload on a transducer assembly
US4555945A
(en)
*
1984-05-01
1985-12-03
Sundstrand Data Control, Inc.
Method and apparatus for producing a controlled preload on a transducer assembly by means of a composite material sleeve
JPS6117959A
(en)
*
1984-07-05
1986-01-25
Japan Aviation Electronics Ind Ltd
Accelerometer
US4726228A
(en)
*
1986-04-16
1988-02-23
Sundstrand Data Control, Inc.
Accelerometer proof mass interface
US4748848A
(en)
*
1987-01-16
1988-06-07
Valentine Research, Inc.
Accelerometer
US4932258A
(en)
*
1988-06-29
1990-06-12
Sundstrand Data Control, Inc.
Stress compensated transducer
US5024089A
(en)
*
1988-06-29
1991-06-18
Sundstrand Data Control, Inc.
Stress compensated transducer
US5239871A
(en)
*
1990-12-17
1993-08-31
Texas Instruments Incorporated
Capacitive accelerometer
US5203210A
(en)
*
1991-06-11
1993-04-20
Sundstrand Corporation
Accelerometer with fastener isolation
US5814727A
(en)
*
1993-11-08
1998-09-29
Motorola, Inc.
Semiconductor accelerometer having reduced sensor plate flexure
TWI275891B
(en)
*
2005-04-29
2007-03-11
Optronics Technology Inc A
An electromagnetic actuated adjusting device for camera lens
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2089745A
(en)
*
1934-04-30
1937-08-10
Graf Anton
Gravity instrument
GB804848A
(en)
*
1949-03-28
1958-11-26
Sperry Gyroscope Co Ltd
An improved axial-motion support
GB804849A
(en)
*
1950-04-12
1958-11-26
Sperry Gyroscope Co Ltd
Improvements in or relating to accelerometers and to control systems employing accelerometers
US2959459A
(en)
*
1953-08-04
1960-11-08
James J Ryan
Flight recorder
DE1026105B
(en)
*
1953-09-29
1958-03-13
Daimler Benz Ag
Electric accelerometer
GB813351A
(en)
*
1955-09-19
1959-05-13
Daimler Benz Ag
Improvements relating to electrical acceleration-measuring or vibration-measuring apparatus
US2916279A
(en)
*
1956-03-19
1959-12-08
Austin N Stanton
Acceleration and velocity detection devices and systems
US3020767A
(en)
*
1959-10-05
1962-02-13
Kistler Instr Corp
Linear accelerometer
US3133446A
(en)
*
1961-04-17
1964-05-19
Gen Precision Inc
Light weight, precision linear accelerometer
1964
1964-07-02
US
US379931A
patent/US3339419A/en
not_active
Expired – Lifetime
1965
1965-06-24
GB
GB26877/65A
patent/GB1070614A/en
not_active
Expired
1965-06-29
DE
DE1965N0026960
patent/DE1523219B1/en
not_active
Withdrawn
1965-06-30
FR
FR22911A
patent/FR1438068A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2421083A
(en)
*
2004-12-09
2006-06-14
Boeing Co
Magnetic Null Accelerometer
GB2421083B
(en)
*
2004-12-09
2008-07-16
Boeing Co
Magnetic null accelerometer
Also Published As
Publication number
Publication date
US3339419A
(en)
1967-09-05
FR1438068A
(en)
1966-05-06
DE1523219B1
(en)
1971-09-09
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