专利名称：Pressure pulse source having a positive lens
with a pressure sensor
发明人：Bernd Granz,Georg Koehler,Ulrich Schaetzle申请号：US07/759664申请日：19910913公开号：US05269292A公开日：19931214
摘要：A pressure pulse source, of the type suitable for generating shockwaves, has apositive lens for focusing the pressure pulses onto a focal zone. The positive lens has anacoustic exit face which has a shape, in a focusing zone, for focusing the pressure pulsesand a shape, in at least one measurement zone, which deviates from the shape in thefocusing zone. A pressure sensor containing a piezoelectric polymer foil is disposed atthe measurement zone. The pressure sensor, or a number of such pressure sensors,generate signals which are used to monitor the pressure pulses emerging from thepositive lens, such as by acquiring their peak value.
申请人：SIEMENS AKTIENGESELLSCHAFT
代理机构：Hill, Steadman & Simpson
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