2 MINIATURE CERAMIC ULTRASONIC PROBES
2 MINIATURE CERAMIC ULTRASONIC PROBES
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DOI：
10.1088/0022-3735/14/12/017
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发表时间：
1981-01-01
期刊：
影响因子：
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通讯作者：
CHIVERS, RC
中科院分区：
文献类型：
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作者：
LEWIN, PA;CHIVERS, RC
介绍了两种用于液体中低频声压测量的微型陶瓷水听器的设计、结构和性能。其中一个器件有一个直径1.6 mm的圆柱形元件，具有良好的定向特性，在0.7 MHz范围内的灵敏度约为-224dBRe 1VµpA-1。另一种探头采用0.5 mm圆盘，在0.5~6 MHz频率范围内的灵敏度为-245dBRe 1VµpA-1，方向响应的均匀性随频率的增加而减小。并对探针的稳定性进行了讨论。
The design, construction and performance of two types of miniature ceramic hydrophones are described, which are intended for acoustic pressure measurements in liquids at low megahertz frequencies. One of the devices has a 1.6 mm diameter cylindrical element with good directional characteristics and a sensitivity of approximately-224 dB re 1 V mu Pa-1 up to 0.7 MHz. The other probe uses a 0.5 mm disc showing a sensitivity of-245 dB re 1 V mu Pa-1 from 0.5 to 6 MHz and diminishing uniformity of directional response with increasing frequency. The stability of the probes is also discussed.