Surface potential detector

Details Surface potential detector Surface potential detector

1986-11-10

1988-02-09

Karlsen, Ernest F.

Electricity: measuring and testing

Electrostatic field

Using modulation-type electrometer

324 72, 324109, 324132, 324140D, G01R 528, G01R 2912

Patent

active

047243937

ABSTRACT:
A surface potential detector of a non-contact type which comprises first and second detecting electrodes arranged in a separated manner from a measured surface so that charge variations are induced on the first and second detecting electrodes on the basis of the potential of the measured surface. The surface potential detector further comprises apparatus for making the amounts of charge variations induced on the first and second detecting electrodes different from each other, first and second detecting devices respectively detecting the amounts of charge variations induced on the first and second detecting electrodes and correction apparatus for performing arithmetic on the ratio between the outputs from the first and second detecting devices to correct the output of the first or second detecting devices on the basis of the ratio.

REFERENCES:
patent: 4205267 (1980-05-01), Williams
patent: 4222007 (1980-09-01), Comstock
patent: 4614908 (1986-09-01), Daniele et al.

Affiliated with

Also associated with

Rating

Surface potential detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface potential detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface potential detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1285222