Applications of wavelet threshold method in denoising optical interferometer signals 小波阈值法在光干涉信号除噪中的应用
A security-monitoring system based on Mach-Zehnder optical fiber interferometer is introduced in this paper. 基于马赫-曾德尔干涉原理设计了一种新型干涉式光纤入侵监测系统。
The dynamic parameters of the micro tactile sensor are tested by using the self feedback optical fiber interferometer. 并采用自反馈光纤式麦克尔逊干涉仪测试了其动态特性参数。
Methods The sensor is based on principle of the two-fiber optical interferometer and the temperature modulation function on phase with the help of CCD image sensor and computer system. 方法应用双光纤干涉和温度对相位的调制原理并借助CCD图像传感器、计算机系统。
Measuring laser linewidth with Young's optical fiber interferometer 扬氏光纤干涉仪测量激光谱线线宽
The measurement of micro-displacement uses high-accuracy inductance type micrometer and optical interferometer. 微位移测量采用高精度电感式测微仪与光学干涉仪。
Delamination detection at web/ flange junction of I-section GFRP beam with fiber optical interferometer sensor 用光纤干涉仪检测I形复合材料梁腹板/翼缘连接处的分层
Optical Tomography Interferometer Design and Information Processing 光学干涉层析仪的设计与信息处理研究
The Demands of Optical Interferometer on Cat's Eye Retroreflector and Its Rail 光干涉仪对猫眼后向反射器及其导轨的要求
Based on the optical heterodyne interferometer and transmission ellipsometry, a new fast measurement technique of nanometer film was presented computational. 结合激光外差干涉法和透射式椭偏测量原理,研究了一种快速、高精度测量纳米厚度薄膜光学参数的方法。
A new and safe pipeline detection method based on distributed optical fiber is put forward in this dissertation and distributed optical fiber sensor based on principle of optical interferometer was designed. 本文提出了一种新型的管道安全分布式光纤检测方法,采用光纤干涉仪原理设计了分布式光纤传感器。
In the present paper we report a method for measuring CW or pulsed laser linewidth with Young's optical fiber interferometer consisted of two single-mode fibers. We have measured several linewidths of lasers as well as the time evolution of single copper vapor lagers. 本文介绍了一个用二根单模光纤组成的扬氏干涉仪来测量连续或脉冲激光谱线宽度的方法,实测了几种激光的线宽及铜蒸气激光在一个脉冲时间内光谱线宽的时间过程。
With using absolute optical interferometer for measuring length of block gauge, it is necessary to solve the problem of phase jump for reflecting of light on its surface. 在用绝对光波干涉法测量量块长度时,必须解决光在量块表面反射时的位相跃变问题。
Quasi-white Light Optical Fiber Interferometer for Large Range Absolute Distance Measurement 大量程光纤准白光干涉绝对测距技术
From the fitting curve, possible factors were analyzed which effect the contrast of interference stripes in optical fiber interferometer. It can provide helpful references to improve the stripe contrast. 从条纹对比度的拟合曲线出发,分析了可能影响光纤干涉仪干涉信号对比度的主要因素,为实验中条纹对比度的进一步提高提供有益的参考。
We have developed a new system of Optical Coherence Tomography in our laboratory based on fiber optical Michelson interferometer with an axial resolution of 12 μ m and lateral resolution of 8 μ m. 本文简要讨论了光学相干层析技术的基本原理,然后介绍了本实验室建立的以光纤麦克尔逊干涉仪为主体的纵向分辨率目前达到12μm,横向分辨率为8μm光学相干层析系统。
Strain measurement inside of composites by embedded optical fiber interferometer 埋入光纤进行复合材料中的应变测量
The phase noise and sensitivity analysis of a novel optical fiber interferometer 一种新型光纤干涉仪的相位噪声及灵敏度分析
Integrated optical interferometer based on bonding technology 基于键合技术的新型集成光学干涉仪
Coordinate measuring machine and optical interferometer are preferred instruments before and after polishing, respectively. Problems exist in both methods. 在抛光前后宜分别采用坐标测量机和光学干涉仪,两种方法都存在一些问题有待解决。
In this thesis, about interference and double beam optical stellar interferometer basic theories are briefly stated first. 本文首先简述了天文光干涉测量技术的理论基础、以双光束干涉为主体的恒星光干涉仪以及综合孔径成像原理。
Research on Vibration Frequency Spectrum Measurement Based on Optical Fiber Interferometer 基于光纤干涉仪的振动频谱测量技术研究
Surface Sticked Fiber Optical Interferometer for the Detection of Delamination in Composites 表面粘贴光纤干涉仪测量复合材料梁的分层
The measurement of frequency-shift of He-Ne laser by means of an optical fiber interferometer 光纤干涉法监测He-Ne激光器的频率漂移
Measured Values of Methane Optical Interferometer meter and Temperature Fluctuation 光干涉式甲烷测定器的量值与温度波动
A new technique for optical fiber interferometer sensor use is possible, namely that associated with the use of low coherence, broad band spectral sources such as light emitting diodes ( LED), multimode laser diodes or halogen lamps. 光纤干涉传感器可以使用一种新技术,即低相干、宽带光源,比如光发射二极管(LED),多模激光二极管或者卤素灯。
This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system. 研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
The quantitative visualization of the density field of double Mach reflection with optical interferometer 光学干涉技术定量显示双马赫反射的密度场
By pressing the beam continuously using a hammer, the output curve can be obtained from the fiber optical interferometer. One can judge if there exists delamination, and where the delamination is from the curve exactly. 通过用榔头连续下压梁,由光纤干涉仪可以得到一条输出曲线,从这条曲线就可以准确判断梁内部是否存在分层,以及分层的位置。
The technique which Optical interferometer with low coherence and broad band light drive accomplished physical measurement is called white light interference measuring technique. Its merit is that it can be accomplished measurement of absolute quantities and high accuracy and anti-jamming features. 采用低相干、宽谱带光源驱动的光学干涉仪实现物理量测量称为白光干涉测量技术,它的优点是可对绝对物理量实现测量,具有测量精度高、抗干扰性好等特点。