Patent ID: 7245063
Filing Date: 2007-07-17
Classification: B06B,G01N,G10K

Abstract:
1. An ultrasonic phased array transducer system comprising: an ultrasonic phased array transducer having a piezo central element with an active area, a concentric piezo ring element enclosing said piezo central element, said piezo ring element having an active area greater than said piezo central element active area, a concentric sectored piezo ring enclosing said piezo ring element, said sectored piezo ring having first and second piezo sector elements, said sectored piezo ring further having an active area greater than said piezo ring element active area; a driver/processor with a plurality of input/output ports; a first electrical channel connecting said piezo central element to a first input/output port in said driver/processor, said first electrical channel including a first impedance matching circuit functioning to match electrical characteristics of said piezo central element to said first input/output port; a second electrical channel connecting said piezo ring element to a second input/output port in said driver/processor, said second electrical channel including a second impedance matching circuit functioning to match electrical characteristics of said piezo ring element to said second input/output port; and a third electrical channel connecting said piezo sector element to a third input/output port in said driver/processor, said third electrical channel including a third impedance matching circuit functioning to match electrical characteristics of said piezo sector element to said third input/output port.