Re: Air and Water pressure measurements


linnix wrote:
Ancient_Hacker wrote:

OK, the main goal is to map the contour and
measure the water level in a moving hillside.

Okay, that's helpful. Those pressure sensors sound about right for the
job.

Of course there's plenty of environmental and packaging issues, so
you'd better build up one or two of these pipes and test them out in
the real world. You only get a few millivolts per psi, so you'll need
some pretty stable and low-offset op-amps to condition the signals.

The hardest problem might be to get the 1 meter vertical positioning
accuracy for the pipe's position-- hope you have some laser surveying
equipment. I don't think GPS is up to the task.
How do they measure hillside slump nowadays anyway?

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