Transcription of 6 SOUND MEASURING INSTRUMENTS - WHO
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6 SOUND MEASURING INSTRUMENTS - WHO
Figure SOUND level meter block diagram6 SOUND MEASURING INSTRUMENTSP rofessor J. MalchaireUnit Hygi ne et Physiologie du TravailUniversit Catholique de Louvain (UCL)Clos Chapelle-aux-Champs 3038B-1200 INTRODUCTIONThis chapter describes the noise MEASURING INSTRUMENTS most widely used in the practice ofoccupational hygiene. The planning, the strategy and the practical aspects of a noise survey arediscussed in Chapter types of MEASURING systems can be used for the measurement of SOUND depending onthe purpose of the study, the characteristics of SOUND and the extent of information that is desiredabout the SOUND .
126 Sound measuring instruments 20 kHz, the frequency response of the sound level meter should be good, with variations smaller than 1 dB, over that range.
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