• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Forty-channel phased array ultrasonic probe using 0.91Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.09PbTiO/sub 3/ single crystal
【24h】

Forty-channel phased array ultrasonic probe using 0.91Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.09PbTiO/sub 3/ single crystal

机译：使用0.91Pb（Zn / sub 1/3 / Nb / sub 2/3 /）O / sub 3 / -0.09PbTiO / sub 3 /单晶的四通道相控阵超声探头

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A 0.91Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.09PbTiO/sub 3/ (PZN-PT) single crystal with high electromechanical coupling factor (k/sub 33/)<90% has been used to fabricate a 40-channel phased array ultrasonic probe with greater sensitivity and broader bandwidth than conventional probes. This probe has a center frequency of 3.5 MHz and an aperture of about 6.0/spl times/7.5 mm. The standard probe fabrication process was modified for PZN-PT. The dispersion of echo signals was within /spl plusmn/20% of the mean value. After recovery poling, the echo amplitude of the PZN-PT single-crystal probe is 8 and 5 dB higher than that of one- and two-matching-layer PZT probes, respectively. Moreover, the fractional bandwidth of the single-matching-layer PZN-PT probe is broader than that of the two-matching-layer PZT probes. The PZN-PT single crystals provide great improvements in the sensitivity and bandwidth of phased array probes.
机译：具有高机电耦合系数（k / sub 33 /）的0.91Pb（Zn / sub 1/3 / Nb / sub 2/3 /）O / sub 3 / -0.09PbTiO / sub 3 /（PZN-PT）单晶<90％已用于制造40通道相控阵超声探头，该探头具有比常规探头更高的灵敏度和更宽的带宽。该探头的中心频率为3.5 MHz，孔径约为6.0 / spl次/7.5 mm。标准探针制造工艺已针对PZN-PT进行了修改。回波信号的色散在平均值的/ spl加/ 20％以内。恢复极化后，PZN-PT单晶探针的回波幅度分别比一层和两层匹配的PZT探针高8和5 dB。而且，单匹配层PZN-PT探针的分数带宽比两匹配层PZT探针的分数带宽宽。 PZN-PT单晶大大改善了相控阵探头的灵敏度和带宽。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号