Objective A microprocessor controlled photoacoustic spectrometer for extracavity measurements was developed and applied to the study of the dynamics of chemical relaxation. A quantitative interpretation not only of the photoacoustic signal but also of the behaviour of the resonance frequency and resonance halfwidth was achieved. All measurements were performed with a cylindrical resonator. Fields of science engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarecomputer processors Programme(s) FP1-STIMULATION 1C - Plan (EEC) to stimulate European scientific and technical cooperation and interchange, 1985-1988 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG EU contribution No data Address Seminarstrasse 2 69117 HEIDELBERG Germany See on map Total cost No data Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all University of Strathclyde United Kingdom EU contribution No data Address 50 George Street G1 1BA Glasgow See on map Total cost No data