I'm reading this in s.e.b but yeah capacitance has always seemed a better way to sense levels to me, does it work well for non-conductive liquids like oil or gasoline? (conductive sensors can't work there) can it be used with compressed (non-liquid) gasses?
Bye. Jasen
for plants they use ultrasonics to measure the distance to the waterlevel as the pumps are of a size that can't be directly switched by a floating switch.
or a sensor with hysterisis (those floats have it)
Bye. Jasen
The hydrogen overvoltage of iron makes stainless steel largely useless for most electrolysis.
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And
i made a water level sensor once using a Ping-Pong ball inside a little tube that would push against a resistor plate. just sealed the wire, outer enclosure and it produced a roughly shaped analog value.. never had any problems with it.
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