Robotic twin probe for measurement on printed circuit boards and

Details Robotic twin probe for measurement on printed circuit boards and Robotic twin probe for measurement on printed circuit boards and

1997-10-31

1999-11-30

Nguyen, Vinh P.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

G01R 106

Patent

active

059949090

ABSTRACT:
An automated system and method for testing circuitry utilizes robotics to place probe leads at selected points on a circuit board with extreme precision. The robotics includes motors and associated control software. The control software can process user input and direct the motors to place the probe leads. The control software also directs the probe to perform the testing and provides the test results to the user. Three motors position the probe leads as directed by the control software. The motors utilize a polar coordinate positioning system. A rotational motor positions a second probe lead in a rotational direction relative to a first probe lead. A radial motor positions the second probe lead in a radial direction relative to the first probe lead. A Z-direction motor positions both probe leads in a Z-direction relative to the circuitry and engages the probe leads with the circuitry.

REFERENCES:
patent: 3727119 (1973-04-01), Stanley et al.
patent: 4881177 (1989-11-01), McClean et al.
patent: 5006793 (1991-04-01), Gleason
patent: 5264788 (1993-11-01), Smith
patent: 5473254 (1995-12-01), Asar
patent: 5550844 (1996-08-01), Lucas
IBM Technical Disclosure Bulletin, "Probe Collision Avoidance Procedure for Parametric Testers", vol. 32 (No. 8B), pp. 438-442, (Jan. 1, 1990).
M. Takahashi, "Manufacturers Consider Fixtureless In-Circuit Testers", JEE Journal of Electronic Engineering, vol. 27 (No. 287), pp. 58-64, (Nov. 1, 1990).

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