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Use of a coupled microphone simulator to compare measurements of electrical transfer impedance in the reciprocity calibration of microphones - Euromet project A312.

Jarvis, D (1996) Use of a coupled microphone simulator to compare measurements of electrical transfer impedance in the reciprocity calibration of microphones - Euromet project A312. NPL Report. CIRA(EXT)008

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Abstract

The NPL coupled microphone simulator mimics two IEC type LSIP microphones coupled by a 3 cm3 coupler, in order to test measurement systems used for the primary reciprocity calibration of microphones. This report presents results obtained with the device at NPL (National Physical Laboratory, UK), PTB (Physikalisch- Technische Bundesanstalt, Germany), the Danish Primary Laboratory for Acoustics (DPLA), and the Danish Technical University (DTU). The coupled microphone simulator has helped to identify and eliminate a number of small errors in the performance of these systems and has been shown to be a very effective tool for monitoring the stability of such systems over periods of several years.

Item Type: Report/Guide (NPL Report)
NPL Report No.: CIRA(EXT)008
Subjects: Acoustics
Acoustics > Sound in Air
Last Modified: 02 Feb 2018 13:18
URI: http://eprintspublications.npl.co.uk/id/eprint/441

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