Method and apparatus for measuring normal contact forces in elec

Details Method and apparatus for measuring normal contact forces in elec Method and apparatus for measuring normal contact forces in elec

1980-12-29

1983-04-19

Ruehl, Charles A.

Measuring and testing

Spring testing

7386254, 7386265, G01L 122, G01L 500

Patent

active

043801714

ABSTRACT:
An apparatus for measuring the contact force of a terminal mounted in a multi-terminal circuit board connector, the measured force being applied normal to the surface of a circuit board received in the connector, has a transducer employing four strain gauges connected in a bridge arrangement with pairs of the gauges being positioned at opposite ends of a fully supported beam. The strain at the end points of the beam are averaged by the strain gauges so that no matter where the forces are applied normal to the beam by the terminal being measured, the deflection is always negligible and the area of the beam upon which the contact force is applied is not critical.

REFERENCES:
patent: 2626523 (1953-01-01), Pike
patent: 3388590 (1968-06-01), Dryden
patent: 4246783 (1981-01-01), Steven et al.

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