Ultrasonic probe having a backing member of microballoons in ure

Details Ultrasonic probe having a backing member of microballoons in ure Ultrasonic probe having a backing member of microballoons in ure

1984-06-07

1986-02-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310334, 310335, 73632, H01L 4108

Patent

active

045715203

ABSTRACT:
An ultrasonic probe for use in ultrasonic imaging systems includes an array of piezoelectric transducer elements. The array is backed by a rear member of an energy absorbing material composed of a mixture of urethane rubber and microballoons. The rear member has a Shore-A hardness greater than 85, an ultrasonic absorption coefficient greater than 1.5 dB/mm at the frequency of energy generated by the array and an acoustic impedance in the range between 1.0.times.10.sup.5 g/cm.sup.2 sec and 3.0.times.10.sup.5 g/cm.sup.2 sec. Alternatively, the rear member is composed of a mixture of thermosetting resin, microballoons and solid particles. Preferably, a thermosetting resin layer is provided between the array and the rear member to ensure against disconnection of wire leads from transducer electrodes.

REFERENCES:
patent: 2707755 (1955-05-01), Hardie et al.
patent: 3661146 (1972-05-01), Peronneau et al.
patent: 3789656 (1974-02-01), Miller
patent: 3950660 (1976-04-01), McElroy
patent: 3969927 (1976-07-01), Yoshida et al.
patent: 4240003 (1980-12-01), Larson
patent: 4297607 (1981-10-01), Lynnworth et al.
patent: 4373401 (1983-02-01), Baumoel
patent: 4479069 (1984-10-01), Miller
patent: 4482834 (1984-11-01), Dias et al.
patent: 4523122 (1985-06-01), Tone et al.

Affiliated with

Also associated with

Rating

Ultrasonic probe having a backing member of microballoons in ure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic probe having a backing member of microballoons in ure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic probe having a backing member of microballoons in ure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1552050