MICROPHONE AND SOUND LEVEL METER CALIBRATION IN FREE FIELD BY A NEW METHOD

Zemar M. Defilippo Soares, Samir Gerges, Michael Vorländer
Abstract:
A new method of calibration of microphones and sound level meter based on the sequential comparison method is presented. The proposed method allows to determine the sensibility in free-field without the use of the expensive anechoic chamber. The results here presented are in accordance with the IEC 61672-3.
Keywords:
microphone, sound level meter, free field, sweep sine, windowing
Download:
PWC-2006-TC8-027u.pdf
DOI:
-
Event details
Event name:
XVIII IMEKO World Congress
Title:

Metrology for a Sustainable Development

Place:
Rio de Janeiro, BRAZIL
Time:
17 September 2006 - 22 September 2006