Patent ID: 6288476
Filing Date: 2001-09-11
Classification: B01J,B06B,B08B,G01N,G10K,Y10S

Abstract:
An ultrasonic transducer, comprising a backplate, front driver, at least one piezoceramic disposed between the backplate and front driver, and a bias bolt connected between the front driver and backplate to provide compressive force on the piezoceramic, the piezoceramic being responsive to applied ultrasonic energy wherein the transducer resonates through a range of frequencies within a bandwidth, the backplate being shaped non-linearly so as to modify the ultrasonic power corresponding to each frequency within the bandwidth, wherein the bolt has a bolt head and wherein the front driver comprises a form fit aperture-sink to the bolt head, further comprising a nut screwed onto the bolt adjacent to the backplate, the aperture-sink preventing counter-rotation of the bolt while screwing the nut onto the bolt.