液晶激光稳功率器

Laser Power Stabilizator in Liquid Crystal

用液晶制作激光稳功率器，控制电路采用了ＰＩＤ调节器．它能有效地抑制激光器输出光功率的低频大幅度波动，使其减弱至±０．１５％／ｈ内．且有体积小，成本低，使用方便的特点．可用于计量，测试和仪器定标等场合．

A laser power stabilizator is made of liquid crystal cell and its control circuit adopts a PID regulator. It is effective for controlling low frequency fluctuation in output power of lasers. The power stabilization is up to±0. 15%/h. This stabilizator is notable for its small volume, low price and easy operation. It can be applied to many fields such as measuring, testing and instrument calibrating, etc.