CA1096653A - Servoed accelerometer utilizing rare earth magnets - Google Patents
Servoed accelerometer utilizing rare earth magnetsInfo
- 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
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)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Control Of Position Or Direction (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Micromachines (AREA)
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 (en) | 1981-03-03 |
Family
ID=25288833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA308,107A Expired CA1096653A (en) | 1977-10-17 | 1978-07-25 | Servoed accelerometer utilizing rare earth magnets |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5459182A (it) |
AU (1) | AU3825078A (it) |
CA (1) | CA1096653A (it) |
DE (1) | DE2833915A1 (it) |
FR (1) | FR2406202A1 (it) |
GB (1) | GB2006439B (it) |
IT (1) | IT1106152B (it) |
SE (1) | SE7810693L (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4250757A (en) * | 1979-11-05 | 1981-02-17 | Sundstrand Data Control, Inc. | Movable element with position sensing means for transducers |
US4245263A (en) * | 1979-05-14 | 1981-01-13 | Honeywell Information Systems Inc. | Write precompensation and write encoding for FM and MFM recording |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3702073A (en) * | 1969-02-28 | 1972-11-07 | Sundstrand Data Control | Accelerometer |
-
1978
- 1978-07-21 AU AU38250/78A patent/AU3825078A/en active Pending
- 1978-07-25 CA CA308,107A patent/CA1096653A/en not_active Expired
- 1978-08-02 JP JP9371378A patent/JPS5459182A/ja active Pending
- 1978-08-02 DE DE19782833915 patent/DE2833915A1/de not_active Withdrawn
- 1978-08-18 FR FR7824185A patent/FR2406202A1/fr not_active Withdrawn
- 1978-10-13 SE SE7810693A patent/SE7810693L/xx unknown
- 1978-10-13 IT IT51491/78A patent/IT1106152B/it active
- 1978-10-17 GB GB7840883A patent/GB2006439B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2006439B (en) | 1982-01-20 |
JPS5459182A (en) | 1979-05-12 |
FR2406202A1 (fr) | 1979-05-11 |
SE7810693L (sv) | 1979-04-18 |
DE2833915A1 (de) | 1979-04-19 |
IT1106152B (it) | 1985-11-11 |
GB2006439A (en) | 1979-05-02 |
IT7851491A0 (it) | 1978-10-13 |
AU3825078A (en) | 1980-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |