METHOD FOR WEAKENING INTENSITY OF SOUND WAVES

摘要

FIELD: industrial acoustics. SUBSTANCE: method includes transformation of lengthwise air sound wave into non- polarized crosswise wave in crossing through the first layer of solid material with arbitrary direction of fibers. Then the wave is polarized in crossing through the second layer- polarizer with appropriate fiber direction. Then the wave is polarized for the second time in crossing through the third layers-analyzer with perpendicular fiber direction. In so doing number of analyzer-polarizer pairs is not restricted. The least number of the pairs is three. EFFECT: high efficiency. 2 cl, 5 dwg