The type of sound
divided according to the noise characteristics have 3
1.Continuous loud noise (continuous Noise) is formed continuously, divided into 2 style is the noise continuous static. (steady-state Noise) and sounds great d continuous unstable (Non steady state Noise)
1.1 conveyor continues static (Steady-state Noise) is characterized with loud continuous volume change, no more than 3 decibels. Like the sound of a loom spinner fan noise, etc. u
1.2 loud continuous unstable (Non - steady state Noise) is characterized by continuous noise. The level changes over the Gila 10 conveyor เดชิ bell, like the sound of circular saw, grinder, etc.
2.Noise periodically (lntermittent Noise) is a sound not to Ames. There was a silence or lighter than the periodic al secret around, such as noise of pump / compressor, voice traffic, aircraft noise that fly, etc. 3
.Noise impact or impact (lmpact or lmpulse Noise) is the sound occurs and ends quickly. In เวลาน้อยกว่า 1 seconds. Changes of more than 40 เดชิ bell, such as noise stamping pole and im pump work breaks the knock hard.
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