Verification technique for checking wrapped wire electronic boards

US4091325A · kind A · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Ira R. Marcus · Rockville, US
• Albert Lee · Hickory, US

Key dates

• Filing date: Feb 8, 1977
• Grant date: May 23, 1978
• Expiry date: Feb 8, 1997

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R31/67
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A verification technique which greatly simplifies and facilitates the tesg of the wiring of wrapped wire electronic boards. The technique contemplates continuity testing of each branch and discontinuity testing between successive branches. After a continuity test for one branch and a discontinuity test with the next succeeding branch, the two branches are then short-circuited. The procedure is repeated with each wired branch until all branches have been tested, whereupon the short-circuit wire may then be removed. The testing technique may be facilitated by utilizing a numerically controlled terminal locator in combination with a computer generated control tape. The technique also contemplates a visual check to verify that all pins on the board that are intended to be wired are indeed wired, and that all pins on the board which are not intended to be wired are indeed bare.