Apparatus for automatically inspecting electrical connecting pin

Details Apparatus for automatically inspecting electrical connecting pin Apparatus for automatically inspecting electrical connecting pin

1985-02-28

1987-09-22

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

356380, 356383, 356394, 358106, 358107, G06K 900

Patent

active

046960473

ABSTRACT:
An automatic pin inspection apparatus and method inspects a plurality of pins that are arranged in a predetermined configuration such as parallel rows and converts the image of the pins to a digital signal for application to a computer system. The digital system is compared with a known reference stored in a memory within the digital computer system and units that do not meet specified tolerances are rejected. A conveyer mechanism ensures the automation of the process. A centering technique is implemented and compensates for the jittering due to the movement of pins to ensure proper alignment of the image prior to the comparison being made.

REFERENCES:
patent: 4264202 (1981-04-01), Guglioatta et al.
patent: 4398256 (1983-08-01), Nussmeier
patent: 4472056 (1984-09-01), Nakagawa et al.
patent: 4531230 (1985-07-01), Brogardh
patent: 4550432 (1985-10-01), Andersson
patent: 4553843 (1985-11-01), Langley et al.

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