Measuring probe for ohmic surface and volume resistivity - uses replaceable contact pins fitted in two rows to surface of insulating plate

摘要

The probe comprises an insulating plate (1) with 2 rows of spring contact pins (4) perpendicular to the surface of the plate, the contact pins in each row being electrically coupled to one another. Pref. the contact pin rows each extend in a straight line or a zig-zag line. The pins can be fitted to the insulating plate so that they are interchangeable, e.g. by fitting them to a metal rail (3) which is itself interchangeable relative to the insulating plate. ADVANTAGE - Provides accurate resistivity measurement for uneven surfaces.