Amplifiers – Sum and difference amplifiers
Patent
1986-10-06
1989-03-21
Wan, Gene
Amplifiers
Sum and difference amplifiers
330252, H03F 345
Patent
active
048147214
ABSTRACT:
A signal converter adapted for use in a nuclear fuel tube inspection system that inspects the inner diameter and outer diameter of the tubes by comparing their actual diameters to the corresponding nominal values and uses that comparison to reject or pass each fuel tube. The signal converter receives signals corresponding to the inner and outer diameters, adds those signals to inverted reference signals corresponding to the nominal values for the inner and outer diameters, shifts the difference signals by an appropriate level, and amplifies the difference signals. The amplified difference signals can be applied to an analog to digital converter and then supplied to a microprocessor for processing. The signal converter increases the resolution of the inspection system without reducing the range of signal levels that it can process.
REFERENCES:
patent: 3299367 (1967-01-01), Howden
patent: 3872395 (1975-03-01), Holland
patent: 4085379 (1978-04-01), Kubach et al.
patent: 4087758 (1978-05-01), Hareyama
patent: 4152659 (1979-05-01), Gordon
patent: 4190806 (1980-02-01), Wermuth
patent: 4320351 (1982-03-01), Brown, Jr. et al.
patent: 4354156 (1982-10-01), Kennedy
patent: 4429282 (1984-01-01), Saari
patent: 4484146 (1984-11-01), Naito
patent: 4527128 (1985-07-01), Bittner et al.
patent: 4567437 (1986-01-01), Hubbard
Breakey Gerald A.
Zana Lawrence J.
Wan Gene
Westinghouse Electric Corp.
LandOfFree
Signal converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-479803