Road surface condition sensor based on scanning detection of backward power

A method of detecting dry, icy and wet road surface conditions based on scanniag detection of single wavelength backward power is proposed in this letter. The detector is used to receive the backward scattered power which changes with the incidence angle. The relationship between backward power and incidence angle is used to find out the effective angle range and distinguish method. Experiment and simulation show that it is feasible to classifv these three conditions within incidence angle of 5.3 degree.

全自动精确扫描两器管端加工机的开发研究

两器是指空调换热器即蒸发器和冷凝器。在空调制冷行业中,管片式换热器(冷凝器、蒸发器)是空调机及制冷设备中的关键部件,其换热器换热效率的高低是评价空调机及制冷设备质量的重要指标。全自动精确扫描管端加工机是空调器生产专用设备,用于将高速冲床加工好的铝翅片和铜U型管胀接在一起,实现了两器的铜管扩口后端板的固定,以满足生产工艺的需要。介绍了研制开发的新一代成型机,智能全自动扫描定位检测,具有自动化程度高、工作效率高、使用方便、冲口平稳、性能可靠等优点。