Dynamic Rangefinding Device Using Amplitude-Modulated Continuous UltrasonicWave+

Aim To develop a high speed and high resolution dynamic rangefinding device for the measurement of large distances.Methods The device was comprised of an ultrasonic transmitter and a receiver,and a receiver , and a continuous ultrasonic wave amplitude-modulated by a low- frequency acoustic signal was used. The rangefinding was achieved by detecting the phase difference between the transmitted and received ultrasonic signals. The design principle. hard- ware implementation , experimental results and performance analysis of the device are included. Results and Conclusion Experiments show that the accuracy of the device are included. within 1.5m while its dynamic data update rate can be up to 40kHz.

飞机翼身自动对接测控系统设计与实现

自动对接系统已成为现代飞机制造业保证对接质量、提升生产效率的重要手段。以飞机翼身自动对接测控系统为对象,详细阐述了对接测控系统结构及其工作原理。该系统基于激光跟踪仪开发了靶标点测量软件,实现了大部件位姿的自动测量;其次,在研制了翼身对接支撑定位器基础上,开发了多轴高精度的同步控制软件;此外,系统还开发了集成控制软件实现对接运动规划、可视化仿真及对接数据的管理。该系统已完成原理样机的研制,并通过了1∶1模拟试验件的自动对接测试。