Patent ID: 7852097
Filing Date: 2010-12-14
Classification: G01R

Abstract:
1. A testing system operable to accurately maintain a relative position between a plurality of contact electrodes and a plurality of electrical contacts, the testing system comprising: a first sensor coupled to a first component, the first component configured to hold a device coupled to the plurality of electrical contacts, wherein the first sensor is configured to measure a first parameter along an axis of a three-dimensional coordinate system and wherein the first sensor is coupled to an athermal mount; a second sensor coupled to the first component, the second sensor configured to measure a second parameter along the axis; a control system coupled to the first component configured to receive information from the first sensor and from the second sensor and configured to determine actuation forces based on the information and wherein the actuation forces act on the first component to maintain a desired relative position between the contact electrodes and the electrical contacts; and a plurality of actuators coupled to the first component configured to exert the actuation forces determined by the control system and to eliminate a tilting of the first component caused by contact forces between the contact electrodes and the electrical contacts.