Re: [PSUBS-MAILIST] A gadget is needed

[Tim (Doc) Williams <doc@caffeina.com>]

How about a diaphram? When the diaphram distorts have it trigger a
microswitch. That way you can calibrate the depth by the pressure on the
membrane and the position of the microswitch. Of course the inside ot the
sensor would be at 1 atmosphere.

Tim

 On Wed, 02 Feb 2000, Michael B
Holt wrote: > As a part of the Turtle idea, I need a device that will limit the
> maximum depth.   The device to do this should be simple, > absolutely reliable
and inexpensive. > 

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