| 摘要 |
A shock sensor (20; 58) has a housing (27) with a Terfenol-D type sensing element (22; 76) positioned inside a sensing coil (26; 74). A permanent biasing magnet (24) is positioned in engagement with the Terfenol-D sensing element (22; 76), and a spacer engages the Terfenol-D sensing element (22; 76) and extends from the housing (27). The housing (27) has a beam (34; 64) with one or two mounting holes through which fasteners (52) extend to mount the shock sensor (20; 58) to a structural element (54). The housing (27) places the spacer in compression against the structural element (54). In an alternative embodiment a DC current (72) can be supplied to the sensing coil (26; 74) to provide the biasing magnetic field. A high frequency filter (78) separates the shock sensing signal from the applied DC biasing current.
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