PSN-L Email List Message

Subject: Water/Laser geophone instrumentation
From: Geoff gmvoeth@.........
Date: Tue, 04 Jun 2013 19:13:13 +0000

Hello PSN,

TWO ideas to play with,

I was just playing around with a drink container of water.
The container was about 1/3 full.
I took a laser pointer and reflected the laser light
off the surface of the water.
The reflection seemed to exhibit motion related to
the water from which it was reflected.


Would it be possible, to use a setup like this,
to detect seismic motions ?

1. Tub of water of some design.
2. reflected laser light off the surface somehow.
3. laser light sensor to detect disturbances
    down to the nano-meter of motion ??
4. at this moment in time, ignore planes of motion.

In addition, how about an adaptive optics sensor like
the astronomers use to detect tornadic or helical winds in the
atmosphere ?

Any thoughts about this ??

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