THE DESIGN OF A SENSITIVE LOW FREQUENCY COUPLED RESONANT PHOTOACOUSTIC CELL

被引：0
|
作者：
魏墨盦
钱梦禄
机构：
来源：
Chinese Journal of Acoustics | 1983年 / 04期
关键词：
THE DESIGN OF A SENSITIVE LOW FREQUENCY COUPLED RESONANT PHOTOACOUSTIC CELL; PAR;
D O I：
10.15949/j.cnki.0217-9776.1983.04.005
中图分类号：
学科分类号：
摘要：
This paper describes the structure and characters of a coupled resonant photoacoustic cell whichhas a smaller volume and operates at the modulation frequency of several hundred Hz.By the adop-tion of transverse exciting light and differential receiving the detection SNR is increased.Its detec-tion sensitivities for concentration of CHOH and CHhave reached 1.2×10/W Hzand4.2×10/W Hzrespectively.
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页码：328 / 335
页数：8
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