SOWACS: how to make a Capacitive sensor ?

[Bruce at Findasensor <asowacspost@findasensor.com>]

Sowacers

Bruce writes:
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I  came  across  a  fairly  old webpage that describes a
capacitive sensor as used by R¸diger Kaufmann :
http://zoology.uibk.ac.at/terrestrik/kaufmann/rk_sens.html

It  describes  a  "home  made"  sensor complete with design schematic,
connected  to a Hobo logger, for use in Alpine research. Can it really
be this easy?!?

The 3 page pdf describes it in more detail, and is made by CYCLOBIOS,
Dreiheiligenstr.1a, A-6020 Innsbruck, Austria, Austrian Patent AT403213B, © Cyclobios 1997
(CYCLOBIOS, is "a cooperative of people from  our  department who make scientific equipment available to other
researchers."  Institut  f¸r Zoologie und Limnologie, Technikerstrasse
25, A-6020 Innsbruck, Austria


Has anyone seen or heard or perhaps used such a thing?

http://zoology.uibk.ac.at/terrestrik/kaufmann/soilmois.pdf

(I have put this info and links up on the capacitance sensor page):
www.sowacs.com\sensors\capacitance.html

Bruce

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