| 摘要 |
An apparatus for sensing impact of a body on a strip located on a support, characterised by comprising: a strip (2) of material presenting piezoelectric characteristics, applicable to a support in the region to be monitored; at least one continuous tape (4) made of conductive material and associated with said strip (2) in a manner parallel to it; a device (6) connected to said tape to condition the electric signal generated by the impact of said body on said strip (2); a device (12) for sensing said signal; a device (18) for indicating the sensed signal.
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