摘要
论述了无转速转矩传感器的刮水器电动机机械特性测试基本原理;分析了小波脊线与信号瞬时频率的关系, 提出了基于小波脊线的刮水器电动机机械特性测试新方法。对实测数据进行处理的结果表明,该方法能够实现无传感器的刮水器电动机机械特性快速准确测试。同时由于小波基函数具有良好的时频局部特性,该方法具有很强的抗干扰性能。
The essential theory of the mechanical characteristic test of the wiper motor without torque and speed sensors is discussed in this paper. The relationship between wavelet ridge and instantaneous fi＇equency is analyzed and a new method of the mechanical characteristic test of the wiper motor based on wavelet ridge algorithm is proposed. Experimental results show that the mechanical characteristic curve of the wiper motor can be rapidly and exactly acquired based on wavelet ridge.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2006年第6期141-144,149,共5页
Journal of Mechanical Engineering
基金
国家自然科学基金资助项目(50307011
60374056)。
关键词
小波脊线
瞬时频率
刮水器电动机
机械特性测试
Wavelet ridge Instantaneous fi＇equency Wiper motor Mechanical characteristic test
