【摘要】 本文探讨了利用双光栅实时测量大视角入射激光波长和方位的理论依据，并进行了误差分析；尝试了利用双光栅实时测量大视角入时激光波长和方位的方法；预见到双光栅是实时测量大视角、宽频带、脉冲激光波长的有效元件。更多还原

【Abstract】 This paper offers a method of using twin-grating to measure laser wavelength of inci-dence at a big angle and the incident angle Theoretically,the measurement accuracy of the method has been analyzed.The experimental results show that the measurement accuracy of wavelength and incident angie is up to 10A and 10￣(-3),respectively更多还原