Electrostatic voltmeter

Electricity: measuring and testing – Electrostatic field – Using modulation-type electrometer

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C324S072000

Reexamination Certificate

active

07439746

ABSTRACT:
An electrostatic voltmeter has an input sensing terminal, a first operational amplifier, a second operational amplifier, a first reference voltage terminal electrically connected to the non-inverting input of the second operational amplifier, a low reference voltage terminal electrically connected to the output of the second operational amplifier, and a voltage indicator, electrically connected between the low reference voltage terminal and the first reference voltage terminal.

REFERENCES:
patent: 4197493 (1980-04-01), Juve et al.
patent: 4797620 (1989-01-01), Williams
patent: 4878017 (1989-10-01), Williams
patent: 4928057 (1990-05-01), Williams
patent: 6426630 (2002-07-01), Werner, Jr.
patent: 6433552 (2002-08-01), Williams
patent: 6504376 (2003-01-01), Werner, Jr.
patent: 7098644 (2006-08-01), Denison
International Search Report and Written Opinion for PCT/US2007/082705, filed May 2, 2008, Trek, Inc.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electrostatic voltmeter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3993383

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.