基于旋转-振荡试验系统的强弱电信号传输与测量

为了解决飞机尾旋特性研究中出现的强弱电信号同步传输干扰和测量问题,提出一种基于旋转-振荡试验系统的强弱电信号传输与测量方法。介绍了旋转-振荡试验系统结构,研制了多通道引电滑环和前置式数据采集系统,解决了多通道电信号传输、同一滑环内强弱电信号同步传输的干扰问题;通过控制系统优化和支杆优化设计,解决了模型角位移按正弦函数振荡、模型振荡角位移与气动力信号同步测量问题。试验应用结果表明:该方法解决了强弱电信号同步传输干扰和测量问题,试验数据精准度达到试验技术要求。

Transmission and Measurement About Strong and Weak Electrical Signals Based on Rotary Oscillation Test System

The multi axis dynamic test system of rotary oscillating is an important equipment to study the plane spin characteristics. In the experiment, multi channel strong and weak electrical signals weak signal transmit from the rotating arc orbit to the ground measuring and controlling equipment at the same time. Through the development of multi channel electrical slip ring and the front data acquisition system, solved the problem of multi channel strong and weak electrical signals weak signal synchronous transmission and signal interference between the channels in the same slide ring. Through the optimization design of control system and the model supporting rod design, solved the angular displacement of plane model oscillate according to the sine wave functions, model of oscillating angle and aerodynamic force signal measured synchronously. The results showed that solving the problem of multi channel strong and weak electrical signals interference and measurement, the test data accuracy meet technological requirement.