FIELD: metrology.
SUBSTANCE: measurement unit contains a remote spacer mounted on the mounting frame, as well as the first and second soundproof belts. Test specimen is mounted on a spacer with the possibility of the test specimen protruding beyond the excitation chamber, as well as with the possibility of location between the first and second soundproofing belts. Excitation source is formed by an electrodynamic vibrator and a force sensor, by means of which the electrodynamic vibrator is made connected to form a structural connection with the mounting frame, as well as an electrodynamic acoustic emitter located in the excitation chamber. Recorders of vibroacoustic parameters are formed by at least one measuring microphone located in the cavity of the receiving chamber and at least one accelerometer located on the surface of the test specimen. Dynamic excitation of oscillations of the sample under study is carried out by means of an electrodynamic vibrator and an electrodynamic acoustic emitter, and the registration of the vibration-damping and sound-insulating properties of the sample under study is carried out by means of measuring microphones and accelerometers.
EFFECT: improving the accuracy of determining vibration-damping and soundproofing properties of enclosing structures.
2 cl, 3 dwg
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