[time-nuts] Mechanical clock sound pickup circuit

Raj vu2zap at gmail.com
Sat Dec 12 12:23:44 UTC 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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