Photoacoustic analyzer

摘要

A photoacoustic analyzer comprises an analyzing cell having a beam entrance window and including a cylindrical piezoelectric transducer element forming at least a part of the wall thereof, and a laser beam emitter emitting a laser beam directed toward and into the analyzing cell through the beam entrance window. In the photoacoustic analyzer, the ratio r/ro between the radius r of the inner side of the analyzing cell and the radius ro of the incident laser beam is selected to lie within the range of 1