Quantitative analysis of a closed photoacoustic cell that uses a high compliance piezoelectric transducer
| 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.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 3ï ´10 -3 cm -1 (SNR=1), corresponding to the absorption of light with a modulated power of 50ï ÂW | en_UK |
| 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.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 |