An ultrasonic probe for an ultrasonic medical diagnostic apparatus which is composed of a piezoelectric vibrator with electrodes attached onto both surfaces thereof and one or two acoustic matching layers which are provided on the surface of one electrode of the piezoelectric vibrator. One of the acoustic...http://www.google.fr/patents/US4616152?utm_source=gb-gplus-shareBrevet US4616152 - Piezoelectric ultrasonic probe using an epoxy resin and iron carbonyl acoustic matching layer
Piezoelectric ultrasonic probe using an epoxy resin and iron carbonyl ...
