Weighing apparatus with an adjustable ratio of stresses in the load bearing members
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United States of America Patent
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-
Mar 9, 1993
Grant Date -
N/A
app pub date -
Jul 2, 1991
filing date -
Jul 2, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spring formed as a Roberval-based frame of conventional material is combined with a smaller sensor in the form of a deflectable load cell of material such as a ceramic. The combination associates the higher load capacity spring with the sensor capable of performing in a manner substantially free of system error. A method for configuring the assembly for optimal system error rejection is described wherein a transmission beam carrying out a load sharing function exhibits a stress selectively greater than the average stress exhibited by the spring.
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