Hello John C. Polasek:
On Jun 24, 2:04=A0pm, John C. Polasek <jpola...@[EMAIL PROTECTED]
> wrote:
=2E..
> Thank you. I recall a liquid level in the A1BNC system
> which was part of a bridge at 400hz.
> In any real capacitor the function of the plates is to
> contact every bit of the dielectric surface, simply as
> a means of polarizing the dielectric.
As a capacitor, yes. Schaevitz made a "tilt sensor" that involved
varying capacitance by using a liquid with a bubble in it...
http://www.meas-spec.com/myMeas/sensors/MEAS_Pos_Schaevitz_tiltclino.asp#Si=
ngle_Axis_Clinometers
> An insulating film to protect against corrosion
> makes sense but is in no way a factor in the
> capacitors function. In that case it should be
> included in the dielectric stack where because
> of its near-micron thickness it could be ignored.
Which is why "thin dielectric" was brought up.
> Electrolytic capacitors have high capacity this
> way: the dielectric is chemically produced.
> Wiki says the aluminum oxide can withstand
> 1e9 V/m which means in a 100 V capacitor
> the film would be 1/10 micron!
Yes, but that is where an ideal sample ruptures, not "withstands".
And then Nature always sticks some discontinuities in there...
No response required.
David A. Smith
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