Patent ID: 6378536
Filing Date: 2002-04-30
Classification: B06B,B08B,G01H,G01V,Y10S

Abstract:
An ultrasonic cleaning device fault detector for monitoring working of a vibrating device of an ultrasonic cleaning device, said ultrasonic cleaning device fault detector comprising:an ultrasonic wave converter, operating with said vibrating device at a common central frequency, sensing ultrasonic waves generated by said vibrating device and producing therefrom an analog signal; an amplifier, amplifying said analog signal generated by said ultrasonic wave converter; a band-pass filter, operating with said vibrating device at a common central frequency, filtering out external noise in said analog signal; and an integrator, converting said analog signal from said ultrasonic wave converter into an electric voltage digital signal output, thereby indicating whether said vibrating device of said ultrasonic cleaning device is generating appropriate sonic waves.