Compact laser vibrometer for industrial and medical applications
Compact laser vibrometer for industrial and medical applications
复制标题
适用于工业和医疗应用的紧凑型激光测振仪
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. Lewin
中科院分区：
文献类型：
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作者：
A. Lewin
激光干涉式测振仪作为一种灵敏、准确、高带宽和线性的测量系统已被广泛接受。对于许多应用，干涉传感器头的内部复杂性和最终尺寸限制了广泛使用。本文介绍了一种新的小型化干涉传感器头的性能和工作原理，它保留了前面提到的系统的重要特性，但体现在一个强大的紧凑型外壳不大于一个典型的手电筒。在声学范围内的速度分辨率已被发现是高达50纳米/秒，在10赫兹RBW。这种新型传感器头的尺寸允许其安装在平衡显微镜组件上或机器内，防水设计允许在临床应用或工业环境中进行消毒清洁。
Laser interferometric vibrometers are now well known and accepted as sensitive, accurate, high bandwidth and linear measurement system. For many applications the internal complexity and resultant size of the interferometric sensor head limits the widespread use. This paper describes the performance and principle of operation of a new miniaturized interferometric sensor head which retains the important characteristics of the previously mentioned systems, but embodied in a robust compact housing no larger thana typical torchlight. Velocity resolution in the acoustic range has been found to be up to 50 nanometers/sec in a 10 Hz RBW. The size of this new sensor head allows it to be mounted on balanced microscope assemblies or within machinery, and the waterproof design allows disinfectant cleaning in clinical applications or operation in industrial environments.