Ultrasonic probe
First Claim
1. An ultrasonic probe comprising a compound piezoelectric material made of piezoelectric ceramic and an organic polymer material, a ceramic material as an electric terminal takeout portion along the end portion of said compound piezoelectric material, plural-line array electrodes provided on one surface of said compound piezoelectric material and said ceramic material, said ceramic material being divided at the same interval as that of the array electrodes, the same material as said organic polymer material being provided in the grooves which divide said ceramic material, end electric terminals being provided which are taken out form the array electrode portion of said ceramic material corresponding to the electric terminal takeout portion from the array electrodes provided on said complex piezoelectric material.
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Accused Products
Abstract
Disclosed is an ultrasonic probe using a compound piezoelectric material made of piezoelectric ceramic and organic polymer. On one principal plane of the compound piezoelectric material, electrodes and electric terminals conducting to these electrodes are formed, and these electrodes and electric terminals are divided into a plurality. On the other principal plane of the compound piezoelectric material, a common electrode is provided, and an acoustic matching layer is mounted on it either intact or divided in correspondence to the divided electrodes. By using part of the compound piezoelectric material as the electric terminal take-out portion, the mechanical strength of the electric terminal take-out portion can be improved, which is particularly preferable for the ultrasonic probe driven at high frequency.
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Citations
4 Claims
- 1. An ultrasonic probe comprising a compound piezoelectric material made of piezoelectric ceramic and an organic polymer material, a ceramic material as an electric terminal takeout portion along the end portion of said compound piezoelectric material, plural-line array electrodes provided on one surface of said compound piezoelectric material and said ceramic material, said ceramic material being divided at the same interval as that of the array electrodes, the same material as said organic polymer material being provided in the grooves which divide said ceramic material, end electric terminals being provided which are taken out form the array electrode portion of said ceramic material corresponding to the electric terminal takeout portion from the array electrodes provided on said complex piezoelectric material.
Specification