高分辨力驱动轮传感器的研究与设计

Design and research of high resolution driving wheel sensor

现有的驱动轮传感器采用的是单相光电式,分辨力低、抗干扰能力差,且不具备判向功能。在诸如瞬时滑转率测试等分辨力要求比较高的情况下不能满足要求。因此,对其进行了研究,采用先对传感器信号进行格雷码编码,然后,再进行处理的方案,设计出了具有高分辨力(提高了32倍)的驱动轮传感器,不担提高了抗干扰能力,并使其具有判向功能,同时,也简化了码盘的加工和制作。

At present the driving wheel sensor has been designed as single phase optical sensor with low resolution and low ability of anti-jamming and can not distinguish turning direction. It can not meet the need of such circumstances that need high resolution such as the test of instantaneous sliding ratio. So a new plan is designed. In the plan, the sensor signal is first Gray coded before being processed, thus high resolution driving- wheel sensor is performed （32 times are improved ）. It improves anti-jamming ability and has the ability of distinguishing turning direction. Meanwhile the process of the photoelectric coder is simplified.