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Particular strain gage orientation for a six component load measurement device
Particular strain gage orientation for a six component load measurement device
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机译:六分量载荷测量设备的特定应变计方向
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摘要
Disclosed is a particular method of strain gage placement on a cylindrical or tubular device for measuring the three force and three moment components of a load. The prescribed parameters of this method optimize measurement sensitivity of the gages and simplify production. On any calibrated cylindrical or tubular device (e.g., a prosthetic or robotic arm), at least six strain gages shall be attached and wired independently or in an independent bridge configuration. A first set of at least three gages shall be oriented approximately sixty degrees or less from either side of the long axis of the device. Then, a second set of at least three gages shall be oriented between approximately forty-five and one hundred-twenty degrees to the first set of gages, and approximately no greater than sixty degrees from either side of the long axis of the device. Each respective gage shall be equally spaced from each other around the periphery of the device. A computer or other such calculation means shall be employed to determine the components and compensate for drift and noise.
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