Balance beam scale having digital display

Details Balance beam scale having digital display Balance beam scale having digital display

G - Physics

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G01G 3/14 (2006.01) G01G 1/36 (2006.01) G01G 23/00 (2006.01) G01G 23/01 (2006.01)

Patent

CA 1254591

BALANCE BEAM SCALE HAVING DIGITAL DISPLAY Abstract of the Disclosure A beam scale includes a single weight mounted on a balance beam which is movable to selected posi- tions to establish ranges of weights to be measured. The beam is supported by a flexible member to which a strain gage mechanism is secured to provide a vernier weight signal. The electronic circuitry associated with the scale receives signals indicative of the adjustable weight position and indicative of the de- flection of the beam supporting member and totalizes these signals to produce and display a number indica- tive of the weight applied to the scale. The scale permits the user operator to perform a simple calibra- tion procedure which guarantees the accuracy of sub sequent measurements by zeroing the scale and calibrat- ing it between the zero and fifty pound setting of the adjustable weight. This provide a balance beam scale which has greater accuracy than conventional mechanical balance beam scales and is far easier to use, particularly by an untrained person.

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