Method of pull-testing wire connectors on an electrical device

Details Method of pull-testing wire connectors on an electrical device Method of pull-testing wire connectors on an electrical device

1989-01-27

1990-01-23

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

7386239, G01N 308

Patent

active

048950289

ABSTRACT:
In pull-testing wire bonds on an electrical device, an upward pulling force is applied to a wire loop by a motor-driven loading arm through a hook which is connected to the free end of a flexible cantilever beam in the arm. A strain gauge is provided on the beam to measure its deflection and thus the applied pulling force and supply a signal corresponding to this measured force. The actual forces applied to the bonds is calculated by generating a signal signifying the distance the hook has moved when the strain gauge starts to generate a signal.

REFERENCES:
patent: 3572108 (1971-03-01), McShane et al.

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