photoelectrically balanced potentiometer

例句：

1. 1.The photoelectrically balanced potentiometer is used to measure the intensity of light.
   光电平衡电位器用于测量光的强度。
2. 2.The photoelectrically balanced potentiometer was used in the experiment to detect the presence of a specific wavelength.
   光电平衡电位器在实验中被用来检测特定波长的存在。
3. 3. The photoelectrically balanced potentiometer was used to adjust the brightness of the display screen.
   光电平衡电位器被用来调整显示屏的亮度。