The biggest experiment , with arms up to four kilometres ( about two and a half miles ) long , is called the laser interferometer gravitational wave observatory , or ligo 有着4公里（约2 . 5英里）长的激光干涉管臂的实验装置，被称作激光干涉重力波观象台或ligo ，迄今为止是世界上同类最大的实验装置。
This thesis describes the research on the development of double - frequency laser interferometer and automatic measuring calibration system of displacement sensor made for chengdu aircraft industrial ( group ) 本学位论文以为成都飞机工业集团公司研制双频激光干涉仪和位移传感器自动检定系统为基础，完成了以下研究工作： 1
However , you have to rotate the laser head and interference system in order to obtain continuous beam in measurement operation and can not utilize the existing laser interferometer performing tracking measurement in practice 这样的测量系统实现比较容易，但必须对整个系统统筹进行设计，现有的激光干涉仪无法实现跟踪测量。
Laser interferometer systems provide a means for probing the refractive index of transparent specimens subjected to dynamic compression . previous interferometer measurements of optical properties under shock loading are reviewed 在国内首次分析利用加窗visar技术测试冲击载荷下晶体折射率的理论，并建立了实验测试技术与系统，对小于20gpa冲击压力下的lif晶体折射率进行了测量。
The paper introduces the approach to checking and measuring , to identifying the errors occurred in the three - axis numerical controlled machine tools with laser interferometer , and builds up the figure model of such errors based on the instruments mentioned above 摘要介绍了利用激光干涉仪检测和辨识数控机床几何精度的方法，建立了基于激光干涉仪的三坐标数控机床几何误差的数学模型。
This paper introduces the sensors of temperature , humidity and pressure , applied in the laser interferometer for gauge block measurement with double wavelengths , describes the principle , design , uncertainty of measurement , as well as the method of calibration 摘要本文介绍了双波长激光量块干涉仪中使用的温度、湿度和气压传感器，描述了其工作原理、设计方案、测量不确定度以及校准方法。
The position errors are measured by two dimension single - frequency laser interferometer , the pitch and yaw errors are tested using phase shifting interferometer with a resolution of 0 . 1nm , the linearity along motion axis is investigated by autocollimator with 0 . 01 " uncertainty 利用单频激光干涉仪测试其运动定位误差特性，相位偏移干涉法测试运动转角误差，光电自准仪测试其运动偏摆误差。
Dual frequency laser interferometer is the best precise and longest instrument to measure presently . with its good characteristic , the dual frequency laser interferometer is used in many fields , especially in the precise measurement of the long displacement and dimension 双频激光干涉仪是目前精度最高、量程最大的长度计量仪器，以其良好的性能，在许多场合，特别是在大长度与大位移的精密测量中获得广泛应用。
A multifunctional laser interferometer which can be used to measure the three dimension microcosmic profile and roughness of optical component is introduced in this dissertation . it covers microscopy , polarized interferometry and real - time phase detection algorithms 本文提出并实现了一种由光学显微系统、偏振干涉技术和条纹扫描波面位相实时检测技术相结合，集三维轮廓测量和粗糙度测量为一体的多功能激光数字化干涉显微系统。
So it is very important to study the method and technology by dual frequency laser interferometer without orbit . and it is a significative task to study a kind of instrument to measure automatically without orbit . this paper adopts a measurement project to track the measurement reflector mirror without orbit by theoretical analyzing and simulant experiment 本文通过理论分析和模拟实验，确定采用一种外置光路激光跟踪测量的方法，即：在双频激光干涉仪前面，设置一个两维跟踪反射镜，当测量反射镜移动时，测控系统驱动控制两维跟踪反射镜旋转，跟踪测量目标靶镜的运动，保证测量信号不中断，从而实现跟踪测量。
