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System
Noise
Calculator
Calculate combined noise level from pump, valve, and pipe sources in a hydraulic system
Input Parameters
Pump Noise (dB(A))
Valve Noise (dB(A))
Number of Similar Sources
Distance to Operator (ft)
Enclosure Type
No Enclosure
Partial Enclosure (-5 dB)
Full Enclosure (-15 dB)
Separate Room (-25 dB)
Calculate
Results
--
Combined Source Level
dB(A)
--
Level at Operator
dB(A)
--
With Enclosure
dB(A)
--
OSHA Compliance
Reference
dB addition: L_total = 10 × log10(sum of 10^(Li/10)) Distance attenuation: -20 × log10(d2/d1) for point source OSHA PEL: 90 dB(A) for 8-hour TWA Action level: 85 dB(A) - hearing protection required