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8. Noise measurement
8.1 Airborne noise
8.1.1 Measuring noise at a given point in space
It is done with a sound pressure meter and uses
a microphone that converts sound pressure into an electrical signal;
an electrical signal amplification system;
frequency weighting or analysis filters (if required);
...
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Bibliography
Circuit calculation codes
Pressure fluctuations emitted by a pump (or valve) must be analyzed to determine the risk they represent for the circuit (stresses, vibration levels, natural frequencies, forces exerted on the structure).
As we have already seen
Standardization
All aspects of testing standards are covered in depth in the reference . We have extracted the most important passages:
Airborne noise measurement
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