[time-nuts] Mechanical clock sound pickup circuit
Raj
vu2zap at gmail.com
Sat Dec 12 07:23:44 EST 2015
Have a look at this page:
http://www.steminc.com/
I have used a number of such products for an entomology study. Picking up the
vibration from a hard wood plant of borers eating the wood.
Raj
At 12/12/2015, you wrote:
>Hello!
>
>I decided to do some experiments with mechanical clocks, so I worked a little
>on picking up escapement ticking sound, with the idea of processing it and
>obtaining a "clean" digital pulse to feed a counter.
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