研制的激光双镜干涉仪比马赫-陈得尔干涉仪除具有较高的干涉光束强度、更大的视场口径、更好的抗振性、结构更简单及成本很低等优点外,还具有与马赫干涉仪完全相同的干涉信息处理方法,并且灵敏度还高一倍。干涉条纹的方向与宽度可任意调节。不需苛刻的实验环境和复杂的调节过程,适于大多数流场干涉显示的定量研究。 文中将讨论仪器的原理及特点,并给出部份实际应用中的结果。 In addition to the advantages of high interference beam intensity, larger field of view aperture, better vibration resistance, simpler structure and lower cost, the laser dual mirror interferometer Bimach-Chendel interferometer also It has exactly the same interference information processing method as the Mach interferometer, and its sensitivity is doubled. The direction and width of interference fringes can be adjusted freely. Without harsh experimental environment and complex adjustment process, suitable for most of the flow field interference display quantitative research. The article will discuss the principle and characteristics of the instrument, and gives some practical results.