Porous adaptation layer in an ultrasonic applicator

Details Porous adaptation layer in an ultrasonic applicator Porous adaptation layer in an ultrasonic applicator

1985-07-26

1987-08-11

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310326, 310334, 73632, 73642, H01L 4108

Patent

active

046864091

ABSTRACT:
A material is disclosed for use as an adaptation layer in ultrasonic transducer units of the type which have a piezo-ceramic transducer. The material is porous, and the acoustic impedance of the material can be adjusted (in one embodiment, to 12.times.10.sup.6 kg/cm.sup.2 s) by adjusting the porosity of the material. In preferred embodiments, the material is piezo-electric and may have a porosity gradient.

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"Experimentelle Untersuchungen zum Aufbau von Ultraschallbreitbandwandlern", Biomedizinische Technik, vol. 27, Book 7-8, pp. 182-185.

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