摘要
提出了一种基于AT89系列单片机的手提式电梯限速器测试仪,该仪器主要由电源变换模块和测控系统模块组成。电源变换模块为测试装置提供工作电压,测控系统模块内含驱动电机和单片机测控系统。单片机控制伺服电机驱动被测电梯限速器的轮盘,通过霍尔开关采集限速器轮盘的转速,结合轮盘的节圆直径即可计算出轿厢移动的速度。限速器的电气动作速度和机械动作速度分别通过电气开关和机械限位来捕捉。给出了测试装置的结构组成,分析了测试装置的测控原理,最终研制出了测试仪的样机。
Based on AT89 series single-chip microcomputer, a type of portable testing device for elevator speed governor is presented which is mainly made up of power converting module and measuring-controlling module. The power converting module supplies working power for the testing device and the measuring-controlling module includes a driving motor and a single-chip micro-computer measuring-controlling system. The single-chip micro-computer controls the servo motor to drive the speed governor＇s wheel. Through a Hall switch, the rotating speed of the wheel can be measured and the lift car＇s moving speed can be calculated combined with the pitch circle diameter. The electrical acting speed and mechanical acting speed of the speed governor can be captured with the aid of an electrical switch and a mechanical limit switch. The components of the testing device are introduced, the working principle of the testing device is analyzed, and finally the prototype of the testing device is developed.
出处
《微型机与应用》
2014年第11期94-96,共3页
Microcomputer & Its Applications
基金
国家级大学生创新创业训练项目(201310359006)
