Signal-to-Noise Analysis of the Improved Open Photoacoustic Helmholtz Cell
نویسندگان
چکیده
منابع مشابه
Signal-to-Noise Analysis of the Improved Open Photoacoustic Helmholtz Cell
Open photoacoustic cells are often used in continuous-flow photoacoustic measurements. Such cells are sensitive to external noise penetration. The improved open photoacoustic Helmholtz cell has much better external noise attenuation than the previously known designs. This paper describes how mechanical dimensions of such a cell influence its signal-to-noise ratio. The analysis was performed by ...
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A phenomenon which is usually considered as the main disadvantage of photoacoustic Helmholtz cells is photoacoustic background signal resulting from the light absorption by the cell windows. Although there are methods which reduce this background signal, e.g. light wavelength modulation or time domain filtering of the photoacoustic response from the sample, the methods are limited to particular...
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ژورنال
عنوان ژورنال: International Journal of Thermophysics
سال: 2014
ISSN: 0195-928X,1572-9567
DOI: 10.1007/s10765-014-1735-9