Piezo electric detector with at least two long, sensitive, supple elements

摘要

Piezoelectric detector with at least one pair of very long supple sensitive elements the respective electrodes of which are connected in parallel. The interconnection is made by interlacing the sensitive elements in such a way that the two electrodes of each of them are alternately in electrical contact with two electrodes of at least one other sensitive element. The detector can be made by winding at least one pair of sensitive elements on a support (4) following two interlaced, oppositely directed helices. The chosen configuration ensures at one and the same time good mechanical strength and simplifies the electrical connections by virtue of the multiple electrical contacts between the electrodes. …??Application to the construction of hydrophones for example. …IMAGE…