GB1163210A - Temperature compensating of Electromagnetic systems of Measuring Instruments - Google Patents
Temperature compensating of Electromagnetic systems of Measuring InstrumentsInfo
- 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
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.
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)
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)
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)
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 |
-
0
- NL NL136155D patent/NL136155C/xx active
-
1966
- 1966-09-09 US US578172A patent/US3498138A/en not_active Expired - Lifetime
-
1967
- 1967-09-20 GB GB42892/67A patent/GB1163209A/en not_active Expired
- 1967-09-20 GB GB57688/68A patent/GB1163210A/en not_active Expired
- 1967-09-23 DE DE19671673402 patent/DE1673402B1/en not_active Withdrawn
- 1967-09-25 NL NL6713054A patent/NL6713054A/xx unknown
- 1967-09-28 FR FR122705A patent/FR1538245A/en not_active Expired
- 1967-10-02 BE BE704569D patent/BE704569A/xx not_active IP Right Cessation
-
1972
- 1972-09-22 NL NL7212862.A patent/NL158616B/en not_active IP Right Cessation
Cited By (2)
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 |