在理论分析的基础上, 对国际上目前广泛采用的干涉法测量光纤布拉格光栅(FBG)传感系统中的光波长移动所存在的相位测量原理误差进......

研究了一种基于渐变滤光片的2～14 m常温红外光谱辐射计，实现了2%测量波长的分辨率。针对单片渐变滤光片的波长范围限制，采用三块渐变......

　　In high power laser system,accurate measurement of transmittance and reflectance at specific wavelengths is often re......

To modulate the tunneling gap with the lock-in amplifier in the scanning tunneling microscopy(STM), information of the t......