Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Measurement microphone calibration"'
Autor:
Richard Barham
Publikováno v:
International Journal of Audiology. 55:796-801
Calibration service providers for audiometric equipment often encounter impracticalities in fully implementing the International Electrotechnical Commission (IEC) guidelines for the extended high frequency region. This report evaluates some of the wo
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2016, 376, pp.48-59. ⟨10.1016/j.jsv.2016.04.033⟩
Journal of Sound and Vibration, Elsevier, 2016, 376, pp.48-59. ⟨10.1016/j.jsv.2016.04.033⟩
International audience; Abstract This paper addresses the problem of in situ calibration of a pin hole-mounted microphone array for in-duct acoustic measurements. One approach is to individually measure the frequency response of each microphone, by s
Publikováno v:
Measurement. 74:130-142
This paper deals with the definition of calibration procedures that allow the traceability of parameters estimated by contact-microphone based vocal analyzers to be ensured. The parameters of interest are sound pressure level, fundamental frequency a
Autor:
Christophe Schram, Péter Tóth
Publikováno v:
Archives of Acoustics. 39:277-287
This paper presents and compares microphone calibration methods for the simultaneous calibration of small electret microphones in a wave guide. The microphones are simultaneously calibrated to a reference microphone both in amplitude and phase. The c
Autor:
Randall P. Wagner, Steven E. Fick
Publikováno v:
The Journal of the Acoustical Society of America. 142(3)
This article reports the first use of the pressure reciprocity technique to calibrate a micro-electromechanical system (MEMS) microphone. This standardized primary calibration method is conventionally used to calibrate laboratory standard microphones
Autor:
Witold Mickiewicz, Michal Raczynski
Publikováno v:
MMAR
The paper addresses the problem of measurement of an acoustic intensity vector in the acoustic field using a singlechannel mechatronic measurement system. However, in any case, the new probe is not capable of replacing the traditional p-p noise probe
Autor:
Thiago Antônio Bacelar Milhomem, Ricardo E. Musafir, Swen Muller, Zemar Martins Defilippo Soares
Publikováno v:
The Journal of the Acoustical Society of America. 141(5)
This paper presents a procedure for free-field calibration of half-inch laboratory standard microphones by reciprocity that allows the identification and removal of the electrical cross-talk, multiple backscattering, reflections, noise, and all harmo
Publikováno v:
Measurement. 51:281-288
The paper presents the accuracy and precision associated with realization of primary standard of sound using the reciprocity method. An experimental determination of the front cavity volume on Universal Measuring Machine has lead to reaffirmation of
Publikováno v:
Metrologia. 51:129-138
Recent developments are presented in the practical realization of IEC 61094-5 on the pressure calibration of working standard microphones. Particular emphasis is placed on the simultaneous comparison calibration approach, implemented in an open sound
Autor:
R J Jackett, R G Barham
Publikováno v:
Metrologia. 50:170-179
The calibration of laboratory standard microphones by the pressure reciprocity method, as specified in IEC 61094-2, is used throughout the world as the basis for primary measurement standards for sound pressure. While the method has long been used to