Am 07.07.2013 02:13, schrieb Peter Hollenbeck:
> Stuart Island, British Columbia
>
> Interesting idea.
> Ocean water temperature here is about 10C and air temperature, when we are
> here April through October, ranges from about 10 to 20. I will have to
> experiment to see if the differential would be a reliable indicator. It's
> difficult to say what the temperature of a dry bilge might be, as it is
> below the water line but separated from the water by 3/4" plywood plus
> epoxy and paint.
>
If the difference is not high enough, you can place a heating element
(e.g. a PTC resistor) near the sensor. Once there is a water drop
between the two, heat conduction will drastically increase giving you a
reliable readout.
Kind regards
Jan
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