Casella CEL-352 dBadge Instrukcja Obsługi Pobierz pdf (Strona 32)

Casella CEL-35X dBadge Users Handbook – Page 32

10 APPENDIX

10.1 Glossary of Terms

This Appendix gives a glossary of the acoustic terminology used in

this handbook and in the CEL-35X dBadge and dB35 software. For

further information, please contact Casella CEL or your local

representative.

A-Weighting

A standard weighting of the audible frequencies designed to

approximate the response of the human ear to noise.

Acoustic Calibrator

An instrument that provides a reference noise source with a

standard level and frequency used to calibrate and check the

performance of sound level meters and noise dosimeters.

ANSI S1.25 - 1991

The U.S. Standard for Noise Dosimeters.

C-Weighting

A standard weighting of the audible frequencies. In the dBadge

system it is used for the measurement of peak sound pressure

level.

Criterion Level (CL)

This is the normalised eight hour average weighted sound level in

dB that corresponds to the maximum permitted daily exposure or

100% noise dose.

Criterion Time (CT)

This is the time, in hours, used in the calculation of the %Dose.

dB(A)

A-weighted sound level in decibels.

dB(C)

C-weighted sound level in decibels.

dB(Z)

Z-weighted sound level in decibels.

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 40 41

Brak uwag

Casella CEL-352 dBadge Instrukcja Obsługi Strona 32