Detection of photoacoustic signal

Since 1975 [63, 115], PZT transducers have often been used for the detection of photoacoustic signals from solutions. Many different piezoelectric detectors have been developed for these experiments [67, 70, 116-121]. Piezoelectric ceramics in tubular form are frequently used. Then the detectors serve simultaneouly as a container for the sample solution. Despite many proposals for the constructicm of a piezoelectric detector, it is necessary to (fcwlop a sf al cell and detector unit to perform photoae>ustk experiments on highly radic ti cotrc ive dilutions. The following requirements had to be taken into special consideration in the d gn ... 

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