Method and apparatus for electrically contacting a material specimen to the conductors of a coaxial cable

摘要

A specimen holder has flexible walls to provide good electrical contact between a material to be tested for its electrical properties and the conductors of a coaxial cable. The walls of the specimen holder are tubular in shape and coaxial and have a plurality of longitudinal slots spaced therearound to provide strips which are flexible in the radial direction. The walls are permanently distorted in a radial direction to urge them towards each other and into spring-like contact with an annular material specimen inserted between them. The specimen holder is particularly suited for measuring the electromagnetic shielding effectiveness of materials.