发明名称 |
OPTISCHER SPANNUNGSSENSOR FÜR EINEN SICHERHEITSGURT |
摘要 |
A belt tension sensor (10/10') includes an armature (22) that is displaced in relation to belt tension and an optical sensing mechanism that detects armature displacement as a measure of belt tension. In a first mechanization, a lens element (38) is mounted on the armature (22) for movement therewith, and light emitted by a light source (34) passes through the lens element (38) before impinging on a light responsive element (36); the lens element (38) variably diffuses the emitted light in relation to the belt tension, and the light impinging on the light responsive element (36) provides a measure of the belt tension. In a second mechanization, the armature (22) includes a protuberance (52) that abuts and variably collapses a compressible optical waveguide (50) to vary its optical transmissivity in relation to the armature displacement, and the optical transmissivity of the optical waveguide (50) provides a measure of the belt tension. |
申请公布号 |
AT477149(T) |
申请公布日期 |
2010.08.15 |
申请号 |
AT20060075697T |
申请日期 |
2006.03.24 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
MURPHY, MORGAN D.;SANFTLEBEN, HENRY M.;ROE, PAMELA A. |
分类号 |
B60R21/01 |
主分类号 |
B60R21/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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