干涉测量的

To measure the nonlinearity in laser heterodyne interferometer, a novel method to measure the nonlinearity was proposed.

为了精确测量激光外差干涉非线性误差，提出了一种新的激光外差干涉非线性误差测量方法。

Based on theory and practice, the advantages and disadvantages, the applicable range andobtainable accuracy of six methods on homogeneity measurement of optical materials——holographical interferometry, Mach-Zender interferometry, Twyman - Green interferometry,star-point method, Foucault shadow method and resolving method——are analysed.

本文从理论和实践相结合的角度，分析了测量光学材料均匀性的全息干涉法、马赫陈德尔干涉法、台曼-格林干涉法、星点法、刀口阴影法、鉴别率法等六种方法的优缺点、适用范围及所能达到的测量精度。

We placed the lens holder, testing lens, and the assistant lens in the testing optical path. When the testing lens was mounted in the lens holder, we took five dynamic interferograms. After rotating the testing lens by 180 degrees along the edge of the testing lens, we took another set of interferograms. Then, we could evaluate the centering error of the testing optical element by analysing these two sets of interferograms.

在待测光程中加入透镜治具、待测透镜与辅助透镜，当待测透镜贴靠於透镜治具，此时撷取五张连续相移干涉图，之后由待测透镜配合透镜治具沿待测透镜外缘旋转180度，再撷取另一组干涉图形，最后由两组干涉图进行分析，以测量光学元件的偏心误差值。

F the magnifying effect of Moire which consists of grating and laser interferometric fringes, the small displacements of interferometric fringes,which are caused by small angular change,are magnified several thousands times,thus,the sensitivity of measuring system is greatly improved.

其原理是用一个光栅与激光干涉条纹组成莫尔条纹，利用莫尔条纹的放大作用将干涉条纹在微小角变下的微小移动放大几千倍，从而大大提高了测量灵敏度，使测量精度提高到0。

Based on laser interferometer theory,Multi-wave interferometer by phase-shift ing method is applied on high-reflective coated optical flatness measurement.

本文以光干涉原理为基础，分析多光束干涉原理特点及其在平面形貌测量中应用可能，提出应用移相方法对被测镀高反膜表面进行调制，得到一系列被调制的干涉图样，经计算机对干涉图样进行自动采集和图像解包裹，获得被测表面的三维形貌数据，并通过实际测试验证了该方法的可行性和科学性。

Design of Phase-shift Power Amplifier for Control of Active Magnetic Bearing;2. A digital control of phase-shift circuit;3. Based on laser interferometer theory,Multi-wave interferometer by phase-shift ing method is applied on high-reflective coated optical flatness measurement.

本文以光干涉原理为基础，分析多光束干涉原理特点及其在平面形貌测量中应用可能，提出应用移相方法对被测镀高反膜表面进行调制，得到一系列被调制的干涉图样，经计算机对干涉图样进行自动采集和图像解包裹，获得被测表面的三维形貌数据，并通过实际测试验证了该方法的可行性和科学性。

When parallel laser beam is irradiating the bubble in the prism, circular interference fringe is produced in the far-field. Based on the far-field theoretical model, the angle position of interference fringes outside the prism is measured with spectrometer and converted into the angle position of interference fringes inside the prism according to Snell's law and then bubble diameter is calculated with computing software Mathematica, the relative difference of which is 0.2%.

平行激光束照射到棱镜中的气泡时，在远场将产生圆环状干涉条纹，利用气泡远场干涉理论模型，使用分光仪对三棱镜外干涉条纹角位置进行测量，由折射定律换算为棱镜内干涉条纹角位置，进而使用计算软件mathematica计算出气泡直径，其相对差为0.2%。

The interferometer introduced in this paper has such properties as simple optical arrangment for holographic recording, automatic insurence of the optical path quality and reproducibility of receded wavefronts in different reference background.

本文所介绍的干涉仪具有全息记录光路简单、自动保证基本等光程、所记录的波前可以在不同的参考背景中复现等项特点，适用于有很高时空分辨要求的干涉测量。

Designed a set of Fiber Bragg Grating sensor system based on phase generated carrier and unbalanced M-Z interference sy- stem,it is used to check the temperature of bubble in the boiler and the reaction of rail when the machine is shearing, meanwhile, it gave its own thoughts for Fiber Bragg Grating sensor system's installing method when doing parameter measuring.

设计了一套基于相位载波零差法和非平衡M-Z干涉系统的光纤Bragg光栅传感系统，用来检测锅炉汽包温度和切削时车床床身导轨的应变，并对在参数测量时光纤光栅传感系统的安置方式提出了自己的思考。

According to t he refined D-InsAR functional model some basic D-InSAR models have been derived, such as two-pass, there-pass and four-pass method. Some concise error analyses have al so been give during the derivation.

根据完善后的数学模型，推导了差分干涉测量基本的两轨、三轨、四轨算法的模型公式，并对其中的误差源进行了相应的理论分析。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。