Glass sound insulation comparing device

Abstract

The invention relates to the technical field of glass performance testing, especially simultaneous testing of sound insulation of sound-insulating glass and non-sound-insulating glass, and particularly discloses a glass sound insulation comparing device. The glass sound insulation comparing device comprises a signal generator, a loudspeaker and two sound level meters with spectrum analyzing functions, and further comprises a sound insulation testing box, a first sound-insulating plate and a second sound-insulating plate, wherein the first sound-insulating plate partitions the sound insulationtesting box into a reverberation zone and a testing zone; the second sound-insulating plate partitions the testing zone into a first testing zone and a second testing zone; the loudspeaker is fixed into the reverberation zone; a first window and a second window are formed in the first sound-insulating plate; the two sound level meters with the spectrum analyzing functions are mounted inside the first testing zone and the second testing zone respectively. The glass sound insulation comparing device can simultaneously test the sound insulation of the sound-insulating glass and the non-sound-insulating glass, so that more intuitive sound insulation comparison is achieved and the sound insulation testing efficiency is improved; the glass sound insulation comparing device can reduce interference of the external environment on a testing process and a testing result, so that the testing result is more accurate.

Description

Technical field: [0001] The invention relates to the technical field of glass performance testing, in particular to simultaneously testing the sound insulation performance of sound-insulating glass and non-sound-insulating glass, in particular to a glass sound-insulation performance comparison device. Background technique: [0002] At present, the sound insulation performance test of glass is mainly carried out in the sound insulation laboratory. The sound insulation laboratory is composed of two reverberation chambers with a volume of not less than 50 cubic meters and an anechoic enclosure. The test equipment mainly includes noise generators, filters , power amplifier, microphone, loudspeaker, sound intensity probe, dual-channel analyzer, computer and sound pressure, sound intensity calibrator, etc.; when testing, randomly select three flat samples and cut them into specified sizes, or make the same material 1. For the flat test sample of the specified size made by the same...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a glass sound insulation performance comparison device for the shortcomings of the above-mentioned prior art that the sound insulation performance of sound insulation glass and non-sound insulation glass cannot be tested at the same time, and the test results may be easily affected by the outside world.

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