Abstract
The development of electronic instrumentation and microphone technology as well as statistical methods of signal processing allows us to measure the acoustic intensity vector with good precision in a broad freqeuncy range. The ability to measure acoustic intensity allows us to improve or simplify some basic measurements as, for instance, the sound power radiated by complex sources, absorption coefficient, transmission loss, etc. The determination of sound power flow makes it possible to improve the efficiency of noise control treatments. Another area of intensity measurement application is the exploration of basic properties of complex acoustic radiators and fields with complex boundary conditions. This paper presents a summary of achievements and projections in future applications.
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