Re: [CAD_CAM_EDM_DRO] Re: Make your own linear scales

At 12:52 AM 3/2/02 +0000, you wrote:

>Pick up the received signal from the microphone and compare it
>against the transmitted signal. At 40kHz, the wave-lenght is
>about .025".

Hi, Mariss,

I've been working on some (unrelated) sonar stuff recently. You're
off by about 10:1 there, wavelength is more like 0.025 *foot*
(about 1/3").

Neat concept, though.

Best regards,

Spehro Pefhany --"it's the network..." "The Journey is the reward"
speff@... Info for manufacturers: http://www.trexon.com
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