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Acoustic Sound Receiver

2017-09-06 21:41  
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The receiver is an audio amplifier fed by SPKR1, a piezo speaker that is used as a microphone. A scope or headphone
Acoustic Sound Receiver

s can be used as a detector. The scope can be triggered horizontally by the transmitted acoustic pulse; the vertical display can be used to drive the delay time, and hence the distance.

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