Piezo-elektrische materialen en hun toepassingen

Ferro-electricity and the piezo-electric effects are briefly described. Natural materials having such proporties are mentioned. But the main attention is given to the relatively young, man-made piezo-electric ceramic materials and (PZT: lood-titasaat-zirkonaat) the different shapes in which they are available. The most recent development of these is the multilayer configuration. The dynamic behaviour is briefly mentioned. Its application in vibrating systems for various purposesdiscussed. Finally a number of different, well known as well as recently developed, applications is surveyed.