Product Introduction: Sound absorbing wedges are necessary sound absorbing structures for building precision level anechoic chambers, used for testing the electroacoustic parameters of electronic products, and for measuring the noise of various mechanical, electromechanical, light industrial, household appliances, and other products.



Type:

1. Classified by shape: pointed sound absorbing wedge and flat sound absorbing wedge.

2. Divided by the number of unit splits: single split, double split, and triple split;

3. Divided by the length of the wedge: long wedge and short wedge;

3. According to the sound absorption materials, they are divided into metal surface sound absorption tips, fabric surface sound absorption tips, polyurethane sponge tips, etc.



Cutoff frequency: The lowest frequency with a sound absorption coefficient equal to or greater than 99% is called the cutoff frequency. According to research experience, the cutoff frequency of the sound absorbing wedge is approximately equivalent to or slightly lower than the frequency of a 1/4 wavelength length of the sound absorbing structure.



Usage: Generally used as internal structural material for anechoic rooms, installed on walls, ceilings, and floors. Sound absorbing wedges are installed on every surface of a fully anechoic room, while semi anechoic rooms generally do not have sound absorbing wedges installed on the ground.