A new design of friction sensor, intended for use in industrial process applications, such as metal forming, has been developed. The sensor consists of a diaphragm whose outer surface is flush with the surface of the tool and whose inner surface is instrumented with strain gauges. Relative to previous sensor designs, this sensor offers reduced disturbance of the frictional interaction between the tool and the workpiece. A proof-of-concept prototype has been constructed and tested in a laboratory test apparatus. The results of testing validate the anticipated performance, based on finite element modeling. The sensor is able to measure both shear and normal forces and, of greater significance, is able to simultaneously differentiate between the two types of loading.
An Embedded Friction Sensor Based on a Strain-Gauged Diaphragm
Contributed by the Manufacturing Engineering Division for publication in the Journal of Manufacturing Science and Engineering. Manuscript received February 2000; Revised September 2001. Associate Editor: M. Wang.
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Dellah , A., Wild, P. M., Moore , T. N., Shalaby , M., and Jeswiet, J. (July 11, 2002). "An Embedded Friction Sensor Based on a Strain-Gauged Diaphragm ." ASME. J. Manuf. Sci. Eng. August 2002; 124(3): 523–527. https://doi.org/10.1115/1.1461839
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