Balance beam scale having digital display
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United States of America Patent
Stats
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Mar 17, 1987
Grant Date -
N/A
app pub date -
Mar 7, 1986
filing date -
Mar 7, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A beam scale includes a single weight mounted on a balance beam which is movable to selected positions 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 deflection of the beam supporting member and totalizes these signals to produce and display a number indicative of the weight applied to the scale. The scale permits the user operator to perform a simple calibration procedure which guarantees the accuracy of subsequent measurements by zeroing the scale and calibrating it between the zero and fifty pound setting of the adjustable weight. This provides 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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