Method and apparatus for forming electrical contact with an analysis slide.

摘要

This disclosure relates to a method and apparatus for forming electrical contact with an analysis slide (14) of the potentiometric type. A probe unit (80;150), adapted to be electrically connected to an electrometer, comprises a plurality of probe tips (33) which are adapted to penetrate into the electrodes (52, 54) of the analysis slide (14) and to move laterally in a direction generally parallel to the electrode layers (72, 74) after penetration. A means (100;175) is provided for preloading the probe tips to control the force required to effect lateral movement of the tips.