CASSETTE TO MEASURE ACOUSTIC CHARACTERISTICS OF LIQUID SAMPLES UNDER HIGH PRESSURE Russian patent published in 1999 - IPC

FIELD: measurement technology. SUBSTANCE: given cassette has cylindrical shell with flat butts which includes resonance cavity filled with tested sample. Hole is drilled in side wall. Butts of shell carry electroacoustic laminated converters. Cassette also has aid to compress assembled cassette in axial direction and bushing that tightly embraces cassette and shuts hole in shell. Cassette is provided with two butt covers. Each cover is installed on side of proper butt of shell and has hole in mentioned butt coinciding with resonance cavity of shell. Corresponding tip is tightly put into hole in opposite butt. EFFECT: increased accuracy of measurements, simplified design, characteristics of cassette do not deteriorate because of pressure differential. 11 cl, 25 dwg