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The need for a convenient means of measurement of the actual contact force for a pin and socket connector is outlined and the design of a piezoelectric strain gauge suitable for use with in-line connectors is described. PZT is used for the strain sensitive element of the gauge, and the relatively large electric charges produced by small strains permit the use of a very simple electrical circuit. With sufficient experimental care, variations in contact force for different sockets of a given type may be correlated with variations in contact resistance.
Instrumentation and Measurement, IEEE Transactions on (Volume:18 , Issue: 2 )
Date of Publication: June 1969