Apparatus for electrical function testing of wiring matrices, particularly of printed circuit boards

US4967148A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Guenter Doemens · Holzkirchen, DE
• Thomas Rose · Worms, DE

Key dates

• Filing date: Aug 28, 1989
• Grant date: Oct 30, 1990
• Expiry date: Aug 28, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R1/07371
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Apparatus for electrical function testing of wiring matrices, particularly of printed circuit boards. In the electrical function testing of wiring matrices, particularly of printed circuit boards, the number of required leads and switch elements can be drastically reduced. In the present apparatus, every measuring locations of the printed circuit board can be selected by an associated busbar and by an intermediate mask that prevents the contacting of non-selected measuring locations. The busbars preferably are orientated transversely relative to the principal direction of the wiring of the printed circuit board. The bus bar interconnecting a number of elements, each of the contact elements being a test probe.