FR2406202A1 - Accelerometre insensible a la temperature - Google Patents
Accelerometre insensible a la temperatureInfo
- Publication number
- FR2406202A1 FR2406202A1 FR7824185A FR7824185A FR2406202A1 FR 2406202 A1 FR2406202 A1 FR 2406202A1 FR 7824185 A FR7824185 A FR 7824185A FR 7824185 A FR7824185 A FR 7824185A FR 2406202 A1 FR2406202 A1 FR 2406202A1
- Authority
- FR
- France
- Prior art keywords
- accelerometer
- mass
- temperature
- insensitive
- witness
- 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.)
- Withdrawn
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)
- Control Of Position Or Direction (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Micromachines (AREA)
Abstract
Accéléromètre insensible à la température. La stabilité à la température d'un accéléromètre asservi comprenant une masse témoin, un détecteur mesurant l'écart de ladite masse et un dispositif de rappel comprenant une bobine coopérant avec un aimant permanent, de façon à rappeler la masse témoin à une position neutre de référence, est considérablement améliorée à l'aide d'aimants permanents qui sont en un matériau contenant des éléments tels que du cobalt, du gadolinium et du samarium. Application aux appareils utilisés pour mesurer une force d'accelération.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84301377A | 1977-10-17 | 1977-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2406202A1 true FR2406202A1 (fr) | 1979-05-11 |
Family
ID=25288833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7824185A Withdrawn FR2406202A1 (fr) | 1977-10-17 | 1978-08-18 | Accelerometre insensible a la temperature |
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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468913A2 (fr) * | 1979-11-05 | 1981-05-08 | Sundstrand Data Control | Dispositif destine a un transducteur comportant une structure fixe |
Families Citing this family (8)
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 |
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 |
Citations (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/fr not_active Expired
- 1978-08-02 DE DE19782833915 patent/DE2833915A1/de not_active Withdrawn
- 1978-08-02 JP JP9371378A patent/JPS5459182A/ja active Pending
- 1978-08-18 FR FR7824185A patent/FR2406202A1/fr not_active Withdrawn
- 1978-10-13 IT IT51491/78A patent/IT1106152B/it active
- 1978-10-13 SE SE7810693A patent/SE7810693L/xx unknown
- 1978-10-17 GB GB7840883A patent/GB2006439B/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3702073A (en) * | 1969-02-28 | 1972-11-07 | Sundstrand Data Control | Accelerometer |
Non-Patent Citations (1)
Title |
---|
EXBK/75 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468913A2 (fr) * | 1979-11-05 | 1981-05-08 | Sundstrand Data Control | Dispositif destine a un transducteur comportant une structure fixe |
Also Published As
Publication number | Publication date |
---|---|
DE2833915A1 (de) | 1979-04-19 |
AU3825078A (en) | 1980-01-24 |
GB2006439A (en) | 1979-05-02 |
JPS5459182A (en) | 1979-05-12 |
GB2006439B (en) | 1982-01-20 |
IT1106152B (it) | 1985-11-11 |
IT7851491A0 (it) | 1978-10-13 |
CA1096653A (fr) | 1981-03-03 |
SE7810693L (sv) | 1979-04-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |