MINIATURE ELECTROOPTICAL FORCE TRANSDUCER.

N. Maalej; J. G. Webster

MINIATURE ELECTROOPTICAL FORCE TRANSDUCER.

N. Maalej
, J. G. Webster

Physics

University of Wisconsin-Madison

Research output: Contribution to conference › Paper › peer-review

Abstract

A 4 mm multiplied by 6 mm multiplied by 3 mm electrooptical force-sensing transducer was developed from a metal U-shaped spring. Force compresses the open end of the spring so that it decreases light passing from a light-emitting diode to a light-sensing solar cell. The parts cost 2. The operating range is from 0 to 50 N, but can be changed by using different spring metals and dimensions. Nonlinearity is about plus or minus 7%. Hysteresis is less than 3%. Random error is about 6% peak-to-peak. Temperature-related zero drift is less than 1%/ degree C uncompensated and much lower with compensation. When embedded in a rubber insole, this thin transducer is used to measure force on the sole of the foot during normal human gait.

Original language	British English
Pages	1092-1093
Number of pages	2
State	Published - 1987

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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title = "MINIATURE ELECTROOPTICAL FORCE TRANSDUCER.",

abstract = "A 4 mm multiplied by 6 mm multiplied by 3 mm electrooptical force-sensing transducer was developed from a metal U-shaped spring. Force compresses the open end of the spring so that it decreases light passing from a light-emitting diode to a light-sensing solar cell. The parts cost 2. The operating range is from 0 to 50 N, but can be changed by using different spring metals and dimensions. Nonlinearity is about plus or minus 7\%. Hysteresis is less than 3\%. Random error is about 6\% peak-to-peak. Temperature-related zero drift is less than 1\%/ degree C uncompensated and much lower with compensation. When embedded in a rubber insole, this thin transducer is used to measure force on the sole of the foot during normal human gait.",

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AB - A 4 mm multiplied by 6 mm multiplied by 3 mm electrooptical force-sensing transducer was developed from a metal U-shaped spring. Force compresses the open end of the spring so that it decreases light passing from a light-emitting diode to a light-sensing solar cell. The parts cost 2. The operating range is from 0 to 50 N, but can be changed by using different spring metals and dimensions. Nonlinearity is about plus or minus 7%. Hysteresis is less than 3%. Random error is about 6% peak-to-peak. Temperature-related zero drift is less than 1%/ degree C uncompensated and much lower with compensation. When embedded in a rubber insole, this thin transducer is used to measure force on the sole of the foot during normal human gait.

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ER -

MINIATURE ELECTROOPTICAL FORCE TRANSDUCER.

Abstract

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