Weighing scales – Computer – Electrical
Patent
1994-10-24
1998-02-10
Spyrou, Cassandra C.
Weighing scales
Computer
Electrical
177229, 177211, 177 2511, 177199, G01G 1922, G01G 314, G01G 308, G01G 1900
Patent
active
057171661
ABSTRACT:
The invention is a system for combining the outputs of two transducers to provide a continuous reading over the combined ranges of the two transducers. The system applies an A.C. signal to the appropriate transducer; the steering for the excitation is controlled by the system microprocessor. The transducers are connected in series mechanically such that the low-range transducer is mechanically stopped before it is overloaded. The outputs of the transducers are connected in parallel and applied to the pre-amp which amplifies the A.C. error signal. The signal from the pre-amp is then applied to the analog-to-digital converter (ADC) for conversion. The ADC converts the pre-amp signal which is then sent to the system microprocessor over a serial link. The system microprocessor then applies the appropriate weighing algorithms to the data and then conveys that information to the parent system.
REFERENCES:
patent: 4037675 (1977-07-01), Storace et al.
patent: 4375243 (1983-03-01), Doll
patent: 4572309 (1986-02-01), Nishiyama
patent: 4660667 (1987-04-01), Uchimura et al.
patent: 5004058 (1991-04-01), Langford et al.
patent: 5088330 (1992-02-01), Talmadge
patent: 5117929 (1992-06-01), Nakamura et al.
patent: 5174400 (1992-12-01), Hasegawa et al.
patent: 5210706 (1993-05-01), Nishimaya
patent: 5270494 (1993-12-01), Davis et al.
patent: 5287748 (1994-02-01), Talmadge
Mai Anh
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
Spyrou Cassandra C.
LandOfFree
Method for combining transducer outputs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for combining transducer outputs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for combining transducer outputs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2078780