Staudenraus, JoachimEisenmenger, Wolfgang2010-08-032016-03-312010-08-032016-03-311993347638899http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-56209http://elib.uni-stuttgart.de/handle/11682/4974http://dx.doi.org/10.18419/opus-4957Aimed at lithotripter acoustic output measurements, a new fibre-optic probe hydrophone overcomes most of the problems involved with the use of piezoelectric hydrophone technology in non-linear ultrasonic and shock-wave fields. The fibre-optic principle allows for extremely wide bandwidth (larger than 1 GHz) and superior electromagnetic shielding. Contrary to hitherto existing hydrophones a high cavitation threshold at the water-silica interface provides undistorted detection of strong rarefractional pulse pressures. Considering pure compression there is good agreement between maximum pulse pressure derived from fibre-optic hydrophone theory and the corresponding amplitudes obtained from acoustically calibrated PVDF membrane and needle hydrophones.eninfo:eu-repo/semantics/openAccessHydrophon , Piezoelektrizität530article