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外差激光干涉测量
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外差激光干涉测量
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工学
外差激光干涉测量
释
heterodyne laser interferometer
外差激光干涉测量
干涉光路中测量光和参考光波长(频率)不同,存在一个较小的频差,通过光路设计,使测量光与参考光相互干涉获得干涉信号,其本质是以激光波长作为测量基准,通过监测激光在参考臂、测量臂中光程差、相位差或频差的变化,获得被测目标的位移量或位移相关量。
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combination method
combination number
combination of algorithms
combination of crop and animal production
combination of green space with point、line and surface
combination of health care and elderly care
combination of housing types
combination of judicial and prosecutorial organs
combination of legislature and administration
combination of lenses
combination of medical and support
combination of medicinals
combination of medicine and education
Combination of medicine and nursing
combination of points of namesake channels,combination of points of namesake meridians
combination of political and economic systems
combination of prisms
combination of sentences
combination of several tunes
combination of signs
combination of source rock,reservoir and cap rock
combination of sports and education
combination of structure action
combination of the nature and flavour
combination of use and nourishment
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