Automatic visual tester for electrical and electronic components - performs video scans of different surfaces with unequal intensities of illumination by annular and halogen lamps

The appts. includes a five-axis positioning table (11) on which the unit under test (20) is rotated (18) and translated (16) by a controller (14) linked to a joystick (12). The unit (20) is oriented to the optical axes of two video cameras (23,24) scanning the same field of view under different ligh...

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Bibliographische Detailangaben
Hauptverfasser:	WHALEN, BRIAN L., GRAFTON, MASS., US, DALY, KEVIN R., STOW, MASS., US, SEPAI, DINYAR, FRAMINGHAM, MASS., US, JONES, GEORGE B., STOW, MASS., US, HONG, KHANH, ASHLAND, MASS., US
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS PRINTED CIRCUITS TESTING
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Beschreibung
Zusammenfassung:	The appts. includes a five-axis positioning table (11) on which the unit under test (20) is rotated (18) and translated (16) by a controller (14) linked to a joystick (12). The unit (20) is oriented to the optical axes of two video cameras (23,24) scanning the same field of view under different lighting conditions. Dim lighting (22) illuminates pref. non-planar and non-vertical surfaces, and brighter lighting (32) pref. the relatively plane surfaces. USE/ADVANTAGE - For e.g. solder connections on surface-mount printed circuit boards. Inspection for faults of all types prescribed in Section 4.4 of MIL-STD-2000A is possible.