Acceleration sensor |
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| 申请号 | JP40580390 | 申请日 | 1990-12-25 | 公开(公告)号 | JPH04221772A | 公开(公告)日 | 1992-08-12 |
| 申请人 | Takata Kk; | 发明人 | SHIMOZONO SHIGERU; YOSHIMURA KAZUO; SATO TATSU; | ||||
| 摘要 | PURPOSE: To electrically detect breakage of the tip, with which the electric conductor of a magnetized inertial body makes contact, of an electrode by a method wherein an acceleration sensor to detect a speed change during collision of a vehicle has the magnetized body located to the interior thereof and comprises mainly a cylinder body to the end surface of which a pair of electrodes are located, and a pair of the electrodes are energized as a result of an electric conductor, located to the end surface of the magnetized inertial body, making contact with the electrodes. CONSTITUTION: Slits 40a and 42a extending from a base end part toward a tip part are formed in electrodes 40 and 42, respectively. The one half sides of the electrodes are respectively connected to terminals 50 and 52 for connecting a lead wire with the slits 40a and 42 therebetween, and an electric resistor 54 is spanned between the other half sides. When the tip side of the electrode is broken, the one half side and the other half side of the electrode are separated by means of the slip and no current flows between the electrodes. COPYRIGHT: (C)1992,JPO&Japio |
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