RECENT DEVELOPMENT IN INSTRUMENTATION FOR PHOTO-ACOUSTIC SPECTROSCOPY OF SOLIDS AND LIQUIDS
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Date
1977
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Ohio State University
Abstract
Until recently, Photoacoustic Spectroscopy (PAS) of solids and liquids was a technique limited to those researchers with the time, interest, funds and necessary expertise in optics, acoustics and electronics. In many cases, such experimental PAS systems were plagued by instrumentation problems which resulted in poor signal-to-noise ratios. During the past year, however, significant advances in PAS instrumentation were made and the first commercial PAS spectrometer was introduced. In this paper, a review will be presented of the PAS method, recent improvements in PAS instrumentation and some typical PAS spectra obtained.
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Author Institution: Princeton Applied Research Corporation