Charge amplifier calibration comparison among NIST, CENAM, and INMETRO

This paper presents the results obtained in an international laboratory comparison among NIST/USA, CENAM/Mexico and INMETRO/Brazil which was focused on the electric calibration of a charge amplifier B & K model 2626 from 50 Hz to 5 kHz. One of the main concerns of this comparison was to conclude...

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Veröffentlicht in:The Journal of the Acoustical Society of America 2002-11, Vol.112 (5_Supplement), p.2343-2343
Hauptverfasser: Ripper, Gustavo P., Payne, Beverly F., Silva-Pineda, Guillermo
Format: Artikel
Sprache:eng
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Zusammenfassung:This paper presents the results obtained in an international laboratory comparison among NIST/USA, CENAM/Mexico and INMETRO/Brazil which was focused on the electric calibration of a charge amplifier B & K model 2626 from 50 Hz to 5 kHz. One of the main concerns of this comparison was to conclude all measurements within the period of 1 month, in order to minimize the influence of long-term temporal instabilities. Each participating laboratory carried out the measurements in accordance with a calibration protocol, which was established to avoid the effect of additional sources of uncertainty. The results are compared with the ones obtained during the former comparison SIM.AUV.V-K1 and the conclusions are presented.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4779473