Quantitative analysis of a closed photoacoustic cell that uses a high compliance
piezoelectric transducer

Hodgkinson, Jane; Johnson, Mark; Dakin, John P.

dc.contributor.author	Hodgkinson, Jane	-
dc.contributor.author	Johnson, Mark	-
dc.contributor.author	Dakin, John P.	-
dc.date.accessioned	2010-12-17T13:35:22Z
dc.date.available	2010-12-17T13:35:22Z
dc.date.issued	2005-01-01T00:00:00Z	-
dc.identifier.citation	Jane Hodgkinson, Mark Johnson, and John P. Dakin. Quantitative analysis of a closed photoacoustic cell that uses a high compliance piezoelectric transducer. Journal of Applied Physics, 2005, Vol.98, 084908	en_UK
dc.identifier.issn	0021-8979	-
dc.identifier.uri	http://dx.doi.org/10.1063/1.2108147	-
dc.identifier.uri	http://dspace.lib.cranfield.ac.uk/handle/1826/4299
dc.description.abstract	A treatment of the operation of low-frequency closed photoacoustic cells is presented, which considers the compliance of various cell elements. The optimum detector, according to our predictions, has a sensor whose compliance is large compared to that of the fluid enclosed by the cell. A simple photoacoustic cell has been built, incorporating a thin-walled piezoelectric cylinder. It was used to test the theory, and demonstrate photoacoustic detection of an absorber in aqueous solution, excited by a low power 678nm laser diode modulated at 110Hz. We have detected absorbances as low as approximately 3Ã¯Â Â´10 -3 cm -1 (SNR=1), corresponding to the absorption of light with a modulated power of 50Ã¯Â ÂW	en_UK
dc.language.iso	en_UK	en_UK
dc.publisher	American Institute of Physics	en_UK
dc.title	Quantitative analysis of a closed photoacoustic cell that uses a high compliance piezoelectric transducer	en_UK
dc.type	Article	en_UK