Apparatus and method for use in inspecting a joint

Details Apparatus and method for use in inspecting a joint Apparatus and method for use in inspecting a joint

1988-10-20

1992-03-17

Dixon, Joseph L.

Boots, shoes, and leggings

73582, 33833, 33556, G01H 1300, G01B 322

Patent

active

050974238

ABSTRACT:
A hand-held probe assembly has two fixed probe legs and two movable probe legs disposed in a linear array. A pair of probe legs, one of which is fixed and one of which is movable, is engageable with a first plate edge portion. A second pair of fixed and movable probe legs is engageable with a second plate edge portion. Retractable alignment legs engage a joint between the plate edge portions to aid in positioning the probe assembly relative to the plate edge portions. In an alternative embodiment of the invention, an alignment leg engages opposite sides of a joint between the plate edge portions to hold the probe assembly centered relative to the joint. The probe assembly generates electrical signals corresponding to the extent of movement of the movable probe legs. Using these electrical signals, a microcomputer calculates the peak angle and the mismatch at the joint between the plate edge portions. If the calculated values of the peak angle and the mismatch are within predetermined limit values stored in a memory, then the geometry of the joint conforms to specification requirements.

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