• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Measurement of ultrasonic pressure by heterodyne interferometry with a fiber-tip sensor
【24h】

Measurement of ultrasonic pressure by heterodyne interferometry with a fiber-tip sensor

机译：光纤尖端传感器通过外差干涉测量法测量超声波压力

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 fiber-optic measurement system is described that allows ultrasound to be detected in fluids. It is based on a heterodyne interferometer, and the sensing element consists of a metal-coated fiber tip. The heterodyne technique permits direct acquisition of the sound pressure. The required ac photodetection is carried out with wide bandwidth, and the system provides high temporal and spatial resolution. For optimum performance the system parameters are matched to the sound-wave properties of the current application with the aid of theoretical and numerical calculations. The fiber-optic sensor system was applied to two problems of ultrasonic exposimetry in which the favorable features of the measurement technique were exploited. Shock waves from an electromagnetic lithotripter were investigated by use of the wide bandwidth of the system, and the subharmonic in an ultrasonic cleaner was detected, which indicates cavitatien.
机译：描述了一种光纤测量系统，其允许在流体中检测超声。它基于外差干涉仪，传感元件由金属涂层光纤尖端组成。外差技术允许直接获取声压。所需的交流光电检测是在较宽的带宽下进行的，并且系统提供了高的时间和空间分辨率。为了获得最佳性能，借助理论和数值计算，将系统参数与当前应用的声波属性相匹配。光纤传感器系统被应用于超声测光的两个问题，其中利用了测量技术的有利特征。使用系统的宽带宽研究了来自电磁碎石机的冲击波，并在超声波清洁器中检测到次谐波，表明存在维生素。

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