Vibration sensing apparatus

Details Vibration sensing apparatus Vibration sensing apparatus

1988-04-27

1989-10-03

Noland, Tom

Measuring and testing

Vibration

Sensing apparatus

273 29A, G01N 2900

Patent

active

048708682

ABSTRACT:
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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