LABORATORY NOISE-ABSORBING SCREEN FOR THE STUDY OF THE EFFICIENCY OF NOISE PROTECTORS

摘要

The claimed technical solution relates to noise reduction structures and can be used in the educational process to study the properties of noise screens in the organization of protection from noise exposure created by vehicles, industrial equipment, etc. It contains a supporting box part and a box lid, on the upper part of which there is a slotted perforation in which angular elements are installed, creating adjustable slotted gaps. The bearing part and the cover, when connected, form a closed volume. The width of the slit, its depth and the distance between the inner surfaces of the rear wall and the corner elements are selected in such a way as to provide the required spectrum of absorbed frequencies. The technical result consists in creating the conditions for studying, within the framework of the educational process, the properties of noise shields used in organizing protection against noise exposure created by vehicles, industrial equipment, etc. 11 s.p. f-ly; 6 ill.