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 Dм=Do+2ΔR, where Do is diameter of piezoelectric plate. EFFECT: higher efficiency. 1 dwg
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Authors
Dates
1994-03-30—Published
1991-04-17—Filed