基于电磁感应的新型汽车速度检测装置研制DEVELOPMENT OF A NEW AUTOMOBILE SPEED DETECTION DEVICE BASED ON ELECTROMAGNETIC INDUCTION
杨家赫,周欣鹏,朱宜昌,董亚萍,张亚萍
摘要(Abstract):
为减少超速汽车使用"电子狗"提前减速以逃避惩罚的现象,基于动生和感生电动势的产生原理,设计了一种利用汽车压力作为测速启动信号的新型汽车速度检测装置,并进行了理论分析和实验验证。有压力作用于压电换能模块上时,该模块会通过永磁铁与金属线圈的电磁感应,将压力转化输出为类正弦交流电;该交流电经过降压稳流电路后,驱动红外发射电路编码后发射红外信号;信息采集部分接收到红外信号后,对其解调、解码后计算得到速度。模拟实验结果表明,该装置测量速度的准确度在95%以上,并可以拓展应用于检测具有一定重量任意物体的平移速度,是一种具有较高实用价值的新型测速装置。
关键词(KeyWords): 电磁感应;压力发电;被动测速;红外线编码解码;能量收集
基金项目(Foundation): 教育部产学合作协同育人项目(201902282053);; 中国石油大学(华东)混合式教学改革项目(HJ201813);; 山东省大学生创新创业训练计划项目(S202010425003)
作者(Author): 杨家赫,周欣鹏,朱宜昌,董亚萍,张亚萍
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