基于光电码盘的三轴转台测角系统

The Angle-measurement System of Three-axis Turntable Based on Photoelectric Encoder

测角系统是三轴转台的关键系统。目前转台测角系统大多采用模拟电路,原理复杂,不易实现,且精度难以预测。介绍一种基于光电码盘的小型三轴飞行仿真转台测角系统的设计方案以及软硬件的实现。该测角系统具有结构简单、测量精度高、完全数字化控制等特点。实验表明,系统可以满足转台进行小型、微型飞机的半实物仿真的要求。

The angle-measurement system is the key system of three-axis turntable. The paper presents the design of an angle-measurement system based on photoelectric encodes for a small three-axis flight test turntable and introduces the realization of the hardware and software of the angle-measurement system in detail. The angle-measure system has the features of simple framework and high precision. This simulator can meet the demands of ground tests and the hardware-in-the-loop simulations of flight control systems for many kinds of small aircraft and micro- aircrafts.