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   压电陶瓷调制 的翻译结果: 查询用时:0.182秒
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压电陶瓷调制
相关语句
  相似匹配句对
     Toughening Piezoelectric Ceramics
     压电陶瓷的增韧
短句来源
     PIEZOELECTRIC CERAMIC TRANSFORMER
     压电陶瓷变压器
短句来源
     A modulated laser interferometer used for piezoelectric characteristic measurement of the piezoelectric ceramic is discussed.
     介绍可测量压电陶瓷压电特性的激光干涉调制测量方法。
短句来源
     FIBER OPTIC PHASE MODULATION THEORY AND EXPERIMENT ANALYSIS WITH PZT CYLINDER
     用压电陶瓷实现的光纤相位调制理论与实验分析
短句来源
     the ways of modulation and demodulation;
     调制和解调的方式;
短句来源
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A new structure optical wavelength- selective switch based on fiber loop mirror and fiber Bragg grating is studied.The dynamic range of greater than 17d B and insertion loss of 0 .5d B at wavelength- selective port were obtained.The measured spectra and numerical simulation indicate that the imperfect of the device can be attributed to the definite difference between the two arms,which was about1.35mm.Devices with bettercharacteristics can be developed by decreasing the difference.

提出并实验研究了采用压电陶瓷调制的光纤环形镜与光纤光栅结合的新型波长选择性光纤开关 ,获得了开关动态范围大于 16 d B、波长选择端口插入损耗小于 0 .5d B的实验结果。研究表明光纤环形镜干涉臂长的平衡是器件的关键。

A method for the absolute measurement of distance with the changeable synthetic wavelength chain is presented. The synthetic wavelength chain can be changed according to the distance to be measured. An experiment system is developed based on a home made tunable 633 nm external cavity diode laser and two dual beam interferometers which are set in one straight line. As the interferometers are modulated by PZT, the unknown distance is included in the phase term of an AC signal. The integer and fractional parts...

A method for the absolute measurement of distance with the changeable synthetic wavelength chain is presented. The synthetic wavelength chain can be changed according to the distance to be measured. An experiment system is developed based on a home made tunable 633 nm external cavity diode laser and two dual beam interferometers which are set in one straight line. As the interferometers are modulated by PZT, the unknown distance is included in the phase term of an AC signal. The integer and fractional parts of the synthetic wavelength interference signal are calculated by the measured wavelength and the phase. It is demonstrated that this experiment system has a standard deviation of less than 2 0 μm at a measuring range of 5 mm. A better measurement accuracy can be achieved easily by improving the performances of the experiment equipment.

本文提出一种利用半导体激光器的波长调谐特性实现的可调合成波长链绝对距离干涉测量方法 ,针对不同的待测距离 ,可选择不同的合成波长链 ,完成对待测距离的由粗测到精测的整个过程。文中基于这种方法构建了干涉测量系统 ,该系统利用压电陶瓷调制的在一条直线上的两个双光束干涉仪 ,使待测距离被包含于一个交流信号的相位项中 ,从而使小数条纹的测量转化为相位测量 ,合成波干涉条纹的小数级次由单波长干涉信号的相位测量值计算得到。文中以外尺寸测量为例描述了实验装置 ,实验结果表明 ,在现有的测量系统和实验条件下 ,待测距离小于 5mm时的测量极限偏差优于 2 0μm。

 
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