PIEZOELECTRIC TRANSDUCER OF ULTRASONIC DIAGNOSTIC PROBE,申请号RU20030132802-传众专利搜索

PIEZOELECTRIC TRANSDUCER OF ULTRASONIC DIAGNOSTIC PROBE

申请公布号：RU2253191(C1)

申请号：RU20030132802

申请日期：2003.11.12

申请公布日期：2005.05.27

发明人：ALFEROV JU.E.;DRONOV A.N.;SAGATELJAN G.R.;MARDANOV R.KH.

分类号：H04R17/00;G01N29/24

主分类号：H04R17/00

摘要：FIELD: ultrasonic diagnostics; piezoelectric transducers for univariate medical probes (echoencephalographs, ocular ultrasonographs). ^ SUBSTANCE: proposed piezoelectric transducer has piezoceramic strip inserted in acoustic isolation bushing, and also damper holding different-size particles distributed along damper axis in compliance with their size. In addition it has flat inductance coil installed on acoustic isolation bushing on side opposing piezoceramic strip. Different-size particles of damper are, essentially, mixture of piezoceramic powder and granules made of piezoceramic powder. Non-hardening material is used as binder. Inner surface of acoustic isolation bushing is covered with magnetostrictive metal layer. ^ EFFECT: enhanced attenuation factor, sensitivity, and shielding reliability, facilitated manufacture. ^ 3 cl, 1 dwg