Method and apparatus for measuring small electrical signals

Details Method and apparatus for measuring small electrical signals Method and apparatus for measuring small electrical signals

1989-09-19

1992-06-09

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With storage means for voltage or current

324130, 36457101, 36457105, G01R 3128, G01R 3500

Patent

active

051210517

ABSTRACT:
A method of and an apparatus for measuring small electrical signals with a computer-supported error-compensating measuring circuit (10) which includes a multiplexer (13), a following amplifier (15), an analog-to-digital converter (16) and a calculation device (17). The multiplexer has at least one pair of measuring signal input terminals (n-1, n) and one pair of zero volt input terminals (A, B) and connects them repeatedly to the following amplifier (15) for signal recording. Memories for digitized signals are present in order to correct, by means of the calculation device, actual measuring signals with correction values determined from a set of first measured signals so that a precise indication value is produced independent of offset errors and their variation.

REFERENCES:
patent: 4200933 (1980-04-01), Nickel et al.
patent: 4208625 (1980-06-01), Piso
patent: 4229703 (1980-10-01), Bustin
patent: 4364027 (1982-12-01), Murooka
patent: 4418392 (1983-11-01), Hata
patent: 4437164 (1984-03-01), Branch,III
patent: 4553091 (1985-11-01), Bristol
patent: 4581714 (1986-04-01), Reid
patent: 4663586 (1987-05-01), Swerlein et al.
patent: 4677588 (1987-06-01), Malka et al.
patent: 4779039 (1988-10-01), Baker
patent: 4799005 (1989-01-01), Fernandes
patent: 4816752 (1989-03-01), Michalski et al.
patent: 4829236 (1989-05-01), Brenardi et al.
patent: 4839819 (1989-06-01), Begin et al.
patent: 4884021 (1989-11-01), Hammond et al.
patent: 4914720 (1990-04-01), Knodle et al.

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