An Embedded Friction Sensor Based on a Strain-Gauged Diaphragm

[+] Author and Article Information
A. Dellah, P. M. Wild, T. N. Moore, M. Shalaby, J. Jeswiet

Department of Mechanical Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada

J. Manuf. Sci. Eng 124(3), 523-527 (Jul 11, 2002) (5 pages) doi:10.1115/1.1461839 History: Received February 01, 2000; Revised September 01, 2001; Online July 11, 2002
Copyright © 2002 by ASME
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Illustration of the diaphragm sensor concept
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Strain distribution on rear surface of diaphragm (Normal Stress=4.39 MPa, Shear Stress=0.439 MPa in positive x-direction)
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(a) Photograph of sensor tee with a dime; (b) insertion of sensor tee into sensor block; (c) section of sensor block and sensor
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Friction sensor calibration instrument
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(a) Experimental response of sensor to shear force variations at different normal loads; (b) finite element modeled response of sensor to shear force variations at different normal loads
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(a) Experimental measured strain versus normal force; (b) finite element modeled strain versus normal force
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(a) Interpretation of dual gage sensor output based on experimental data; (b) interpretation of dual gage sensor output based on finite element data




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