Acoustic techniques have found application in many industrial sectors, including biomedicine, sonar and non-destructive evaluation.
They can be passive (acoustic emission) or active (where ultrasound is passed into a material), and yield information on the physical properties of a sample (e.g. viscosity, density or particle size).
Hence, acoustic methods are now also of interest in the field of process analysis and control.
This short course will cover the background to acoustic methods, the challenges in applying such techniques on-line and review some successful case studies.