Photoelectricsensing and precision ruling are the main technical base for developing precision rotary platform with digital display.
光电传感和精密刻划技术，是开发精密数显转台的主要技术基础。
2
With a new combining method of optics and electronics, a device based on a multi-beam optical sensor and a photoelectricsensing circuit was setup.
利用光学和电子学结合的方法，建立了基于多光束光学传感器和光电检测电路的检测薄膜特性装置。
3
However, the importance and inherent frangibility of the space-based photoelectric imaging and re-mote sensing device make problem of safety and protection more serious.