Patent ID: 7170251
Filing Date: 2007-01-30
Classification: B23K,B41M,G01R,G02B,G05B,Y02P

Abstract:
1. A diagnostic system for analyzing a limited rotation motor system, said diagnostic system comprising: first transform means for receiving a first digital signal that is representative of a motor control signal, and for providing a motor control frequency domain signal that is representative of a frequency domain representation of the motor control signal; second transform means for receiving a second digital signal that is representative of a position detection signal, and for providing a position detection frequency domain signal that is representative of a frequency domain representation of the position detection signal; closed loop frequency response means for identifying a representation of the frequency response of the limited rotation motor responsive to the motor control frequency domain signal and the position detection frequency domain signal; and diagnostic means for comparing the representation of the frequency response with a previously recorded representation of a prior frequency response to identify an error condition with respect to the limited rotation motor system.