Patent ID: 6067860
Filing Date: 2000-05-30
Classification: G01N

Abstract:
A method for evaluating the integrity of a circuit device, the method comprising:stabilizing a portion of the circuit device relative to another portion of the circuit device;providing a controllable servo motor having a shaft;providing a servo-controller having a feedback circuit including a position command circuit and a position sensor that monitors the performance of the servo motor, wherein the servo-controller is constructed and arranged to cause the servo motor to controllably rotate the shaft;securing the shaft to the other portion of the circuit device;obtaining position data with the position sensor and sending a position feedback signal to the position command circuit;combining the position feedback signal with a signal from a controller input;using the servo-controller and the combined signals to provide a torque to the circuit with the servo-controller; andat least reducing the torque in response to detecting a failure condition of the circuit device.