文档介绍：KMI15-1转速型传感器
摘要:转速传感器是用于将旋转物体转速状态转换为电信号的一种传感器。转速传感器可以应用在各种转速测量场合,能适应对旋转物体的低速、高速、稳速和瞬时速度等多种转速状态测量工作,并可将信号传导给控制部门。
集成转速传感器[1]具有灵敏度高、测量范围宽、抗干扰能力强、外围电路简单等优点,是传统分立式转速传感器升级换代产品。文中介绍了KMI15系列磁阻式集成转速传感器工作原理与典型应用,以及针对不足处的改进措施。
关键词:转速传感器,磁阻,电磁干扰滤波器,KMI15。
Abstract: The tachometer generator will be will use in revolving the object rotational speed phase transition for the electrical signal one kind of sensor. The tachometer generator may apply in each kind of tachometric survey situation, can adapt to the revolving object low speed, high speed, steady fast and the instantaneous velocity and so on many kinds of rotational speed condition surveying work, and may give the signal conduction the control division. Integration tachometer generator [5] has the sensitivity high, the survey scope width, anti jamming ability strong, the periphery electric circuit simple and so on the merits, is the traditional separation type tachometer generator turns to a new generation the product. In the article introduced the KMI15 series ic resistance type integration tachometer generator principle of work and the model application, as well as in view of insufficient improvement measure.
Key word: Tachometer generator; ic resistance; ic interference filter; KMI15.
一、主题
转速属于常规电测参数。测量转速时经常采用磁阻式传感器或光电式传感器进行非接触性测量,传统磁阻式传感器是由磁钢、线圈等分立元件构成,亦可用耳塞机改装而成。但这种传感器存在一些缺点:第一,灵敏度低,传感器与转动齿轮最大间隙(亦称磁感应距离)只有零点几毫米;第二,在测量高速旋