(a) noise source control
1, to eliminate the root causes of noise: improve the structure, improve the production process, reduce mechanical friction, change the shape of the nozzle
2, the use of sound-absorbing, acoustic isolation equipment
(b) from the noise transmission pathway control<
1, blocking the transmission pathway
2, change the installation direction of machinery and equipment
3, principle noise source
(C) protection of the receiver
Protection of the receiver, in addition to reducing the exposure time of the personnel in the noise environment, can be taken to a variety of personal protection means, such as wearing earplugs, ear muffs, or helmets and so on.