Method of treating an ultrasonic transducer element

Details Method of treating an ultrasonic transducer element Method of treating an ultrasonic transducer element

G - Physics

01

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G01B 17/00 (2006.01) G01H 11/06 (2006.01) G01S 7/521 (2006.01) G01S 15/87 (2006.01) G10K 11/34 (2006.01) G01S 15/42 (2006.01) G01S 15/88 (2006.01)

Patent

CA 1284238

ABSTRACT Ultrasonic apparatus for use in detecting an object having a transducer. The transducer has an array of at least one element coupled directly into air. The apparatus also includes a transmitter which may be multi-channel, a receiver which may be multi-channel, a transmit receive switch, and a computer for causing operation of said transmit receive switch to cause sequential supplying of pulses of energy from the transmitter to the element or elements of the transducer and for receiving energy received by the transducer. The element or elements of the transducer are provided with a roughened surface to produce high frequency ultrasonic energy. Also disclosed is a method for treating an element for use in a transducer in ultrasonic apparatus comprising the steps of providing a planar surface on the element, and forming sandpaper-like annular grooves in the planar surface and a method of chemically etching the surface so that it can be used for one plate of a capacitor.

577185

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