Calculation Vibrating Screen

169, was then operated with vibration only with the Side 1 screens processing coal and the sound level measurements were repeated. The background-noise-corrected sound levels due to the test screen for vibration only operation were then calculated by L = 10LOG (10 0.1L P,4 − 10 01. L P,3 Pv, ib ) (2) where L P,vib is the background noise ...

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