发明名称 |
Vibration sensing apparatus |
摘要 |
A sensing device is disclosed which produces a response when the point of impact between an object and a member occurs at a preselected location on the member. When the member vibrates after being impacted by the object, an oscillatory electrical signal is produced by a piezoelectric sensor. Appropriate circuitry is provided for analyzing the oscillatory electrical signal and for producing a response if the object impacted the member at the preselected location. The sensing apparatus is particularly useful in athletics for determining whether a game object contacted the athletic instrument at its "sweet spot".
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申请公布号 |
US4870868(A) |
申请公布日期 |
1989.10.03 |
申请号 |
US19880186843 |
申请日期 |
1988.04.27 |
申请人 |
PENNWALT CORPORATION |
发明人 |
GASTGEB, RAYMOND F.;TOM, EDWARD |
分类号 |
A63B69/38;B06B1/06;G01H1/00;G01N29/04 |
主分类号 |
A63B69/38 |
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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