Development of ultrasonic transducers for ranging and imaging in heavy liquid metal

被引：4
|
作者：
Kazys, R [1 ]
Sliteris, R [1 ]
Voleisis, A [1 ]
Voleisiene, B [1 ]
Abderrahim, A [1 ]
Kupschus, P [1 ]
机构：
[1] Kaunas Univ Technol, Ultrasound Inst, Kaunas, Lithuania
来源：
PROCEEDINGS OF THE IEEE SENSORS 2004, VOLS 1-3 | 2004年
关键词：
high temperature ultrasonic transducer; heavy liquid metal;
D O I：
10.1109/ICSENS.2004.1426249
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper is devoted to a description of development of high temperature, gamma and neutron radiation resistant ultrasonic transducers which must operate continuously in a liquid Pb/Bi up to 450 degrees C. Known ultrasonic transducers are not intended for such harsh conditions. The main problems are acoustic coupling of the piezoelement to the protector and wetting of the transducer by a heavy liquid metal. For the first time piezoelement was attached to the transducer body by gold-to-gold diffusion bonding process, acoustic coupling between the transducer and the liquid metal alloy was achieved by front face coating by a protective diamond like carbon (DLC) layer. Due to a high radiation only a limited number of materials may be used in the transducer design. The transducers with the bismuth titanate piezoelectric elements showed no noticeable changes of pulse responses and transfer coefficients. The housing of the transducers is made of stainless steel AISI 316, it is laser welded and the high temperature circle divide I mm 15 m long mineral cable is used.
引用
收藏
页码：646 / 649
页数：4
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