实验室标准传声器静压和温度修正系数的测量

doi:10.3969/j.issn.1000-1158.2012.04.11

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Abstract To investigate the static pressure coefficient and temperature coefficient of the laboratory standard microphones, a static pressure and temperature control system was developed based on the coupler reciprocity system. The sensitivities under different pressure and temperature conditions were dealt with application of Straight Line Fitting Method and the pressure and temperature coefficient at different frequency was obtained. The results show that in low frequency the coefficients hold the line, and at half of the resonant frequency of diaphragm, the pressure coefficient gets its max., while the temperature coefficient gets its min.

Key words： Metrology LS microphones Pressure sensitivity Static pressure coefficient Temperature coefficient

PACS:

TB95

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	Articles by authors
	HE LONG-biao
	BAI Ying
	QIU Jian-min
	ZHONG Bo
	NIU Feng

Cite this article:

HE LONG-biao,BAI Ying,QIU Jian-min, et al. Measurement of the Pressure and Temperature Coefficient of Laboratory Standard Microphone[J]. Acta Metrologica Sinica, 2012, 33(4): 336-339.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2012.04.11 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2012/V33/I4/336

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