ULTRASONIC HF-TRANSDUCER FOR SONICATION OF BATH FLUID Russian patent published in 1994 - IPC

FIELD: cleaning of contaminated parts. SUBSTANCE: transducer has membranes secured to common base over its edges by means of fasteners. Installed on each membrane is piezoelectric plate rigidly connected to it. Thickness of isolating area of each membrane H (mm) is related to resonance frequency f (MHz) of its piezoelectric plate as h: f = 0.2-0.5; width of isolating area of membrane ΔR=(20-60)h, and membrane diameter D_м=D_o+2ΔR, where D_o is diameter of piezoelectric plate. EFFECT: higher efficiency. 1 dwg