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A Simplified Method for Calibrating a Sound-Level Meter for Use With a Brüel & Kjær Artificial Mastoid

The standard method for calibrating a sound-level meter for use with the Brüel & Kjær Artificial Mastoid for bone vibrator tests entails the use of a signal generator, a precision voltmeter, and possibly a frequency counter. This equipment should be certified annually and traceable to the Natio...

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Published in:American journal of audiology 1998-10, Vol.7 (2), p.61-72
Main Authors: Harris, Richard W., Chanaud, Robert C.
Format: Article
Language:English
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Chanaud, Robert C.
description The standard method for calibrating a sound-level meter for use with the Brüel & Kjær Artificial Mastoid for bone vibrator tests entails the use of a signal generator, a precision voltmeter, and possibly a frequency counter. This equipment should be certified annually and traceable to the National Institute of Standards and Technology (NIST), and its use generally restricts calibration to a laboratory environment and requires a considerable amount of time. We have developed a simplified method for calibrating the sound-level meter by using a sound-level calibrator and microphone. Using the known sensitivities of the microphone and the artificial mastoid, the sound-level calibrator used for calibration of the microphone may also be used for calibration of the sound-level meter to measure force levels with the artificial mastoid.
doi_str_mv 10.1044/1059-0889(1998/011)
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title A Simplified Method for Calibrating a Sound-Level Meter for Use With a Brüel & Kjær Artificial Mastoid
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