| 摘要 |
A device (12) that simulates the firing of a firearm (10) includes a piezoelectric crystal (58) for detecting high amplitude acoustic pulses generated when the firing mechanism (18) of the firearm (10) is activated. The piezoelectric crystal (58) provides a voltage pulse to an amplitude detecting circuit (100). If the pulse generated by the piezoelectric crystal (58) is above a threshold value, the amplitude detecting circuit (100) causes a laser diode (153) to be energized. The laser diode (153) directs a beam at the target (20) to allow the user to determine where the "shot" is fired. The laser diode (153) is activated for a sufficiently long period of time to allow the laser spot to be visible to the human eye, and also to allow a streak to be developed if the firearm (10) is pulled slightly by the user when the trigger (16) is pulled. The device is conveniently mounted under the barrel (22) of the firearm (10).
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