Weighing scales – With testing
Patent
1984-11-05
1986-02-25
Miller, Jr., George H.
Weighing scales
With testing
177164, 177211, 73 1B, 7386267, G01G 1952, G01G 2314, G01G 314, G01L 122
Patent
active
045723095
ABSTRACT:
A load cell type weight-measuring device includes a load cell; a test voltage generator for generating a voltage equal to a rated output voltage of the load cell; a zero-point setting circuit; an amplifying circuit; a switching circuit for selectively coupling the load cell and test voltage generator to the amplifying circuit; and a data processing circuit for generating weight data corresponding to an output signal from the amplifying circuit. The amplifying circuit includes a first amplifier of a gain 1 for amplifying an output voltage from the zero-point setting circuit; first and second resistors; and a second amplifier whose first input terminal is connected to an output terminal of the first amplifier through the first resistor and is connected to its own output terminal through the second resistor and whose second input terminal is connected to the switching circuit.
REFERENCES:
patent: 4061198 (1977-12-01), Caldicott
patent: 4139069 (1979-02-01), Domis et al.
patent: 4294322 (1981-10-01), Nishiyama
patent: 4417631 (1983-11-01), Jonnson
Miller Jr. George H.
Tokyo Electric Co. Ltd.
LandOfFree
Load cell type weight-measuring device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load cell type weight-measuring device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load cell type weight-measuring device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1008372