Accelerometer |
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| 申请号 | JP22405391 | 申请日 | 1991-09-04 | 公开(公告)号 | JPH04256865A | 公开(公告)日 | 1992-09-11 |
| 申请人 | Automot Syst Lab Inc; | 发明人 | REONAADO DABURIYU BEAA; SUCHIIBUN JIEI ANDAASON; DONARUDO EI DEYUUDA; ROBAATO BII KORUTEN; | ||||
| 摘要 | PURPOSE: To achieve a rapid response for an acceleration input with a short continuation time by providing a conductive, nonmagnetic material pipe that interacts with a magnetic detection body and gives a magnetic damping force when the magnetic detection body moves. CONSTITUTION: A housing 12 made of iron or steel houses a pipe 14 that is made of a conductive, nonmagnetic material such as copper. The pipe 14 is supported for the housing 12 by a sealing sleeve 16. A magnetic detection body 30 in the pipe 14 generates a high magnetic flux density that is not relatively affected by the influence of temperature change over a desired operating range of an acceleration meter 10. The pipe 14 performs electromagnetic damping for the magnetic detection body 30 that changes proportionately with the traveling speed of the magnetic detection body 30. Further, current in the direction of circumference is induced in the pipe due to the move of the magnetic detection body 30 in the pipe 14, and the current in the direction of circumference generates a magnetic field that is against the succeeding move of the magnetic detection body 30. COPYRIGHT: (C)1992,JPO |
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