Review on Applications of Photoacoustic Spectrometer
Journal Title: International Journal of Electrical and Electronics Engineering Research (IJEEER) - Year 2017, Vol 7, Issue 4
Abstract
Photoacoustic (PA) effect, is basically generation of acoustic waves on irradiating certain substances by a modulated radiation source. Photoacoustic (PA) effect was discovered by A.G. Bell in 1881. Photoacoustic technique is a powerful tool for the determination of phase transitions in solids, liquids and gases compared to other conventional techniques. To explain the properties of the materials and to develop new materials, a basic understanding of phase transformation is required. PA signal information can be used to investigate the variations in the optical and thermal properties of the materials during phase transitions. The advantage of PA technique is its simplicity in the sample preparation, and its accuracy in the phase transition detection. The designing of photoacoustic spectrometers by using sophisticated systems, such as PC/Microprocessor/ Microcontroller and DSP is reviewed.
Authors and Affiliations
Sapna ,, P. Bhaskar
Keywords
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