本系统采用电动机电枢供电回路串接采样电阻的方式来实现对小型直流有刷电动机的转速测量。该系统主要由二阶低通滤波电路,小信号放大电路、单片机测量显示电路、开关稳压电源电路等组成。同时自制电机测速装置,用高频磁环作为载体,用线圈绕制磁环,利用电磁感应原理检测电机运行时的漏磁,将变化的磁场信号转化为磁环上的感应电流。用信号处理单元电路将微弱电信号转化为脉冲信号,送由单片机检测,从而达到准确测量电机的速度的要求。In this system, the sampling resistance of armature power supply circuit is connected in series to measure the speed of small DC brush motor. The system is mainly composed of second-order low-pass filter circuit, small signal amplifier circuit, single-chip measurement and display circuit, switching regulated power supply circuit and so on. At the same time, the self-made motor speed measuring device uses high frequency magnetic ring as the carrier, coil winding magnetic ring, and electromagnetic induction principle to detect the leakage of magnetic field during the operation of the motor, which converts the changed magnetic field signal into the induced current on the magnetic ring. The weak electric signal is transformed into pulse signal by signal processing unit circuit, which is sent to single chip computer for detection, so as to meet the requirement of accurate measurement of motor speed.
标签: 直流电动机
上传时间: 2022-03-26
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可语音播报的单片机电阻、电容、电感测试仪设计论文本课题主要研究内容为设计一个基于单片机的RLC智能测量仪器,能够智能地识别出待测元件是电容、电感还是电阻;能精确测量出电阻、电容、电感的参数值,同时还能加入语音播报的功能;可以实现量程电阻的自动转换,无须人工选择档位;对测量仪进行扩充后还实现了二极管、三极管的测量。
上传时间: 2022-07-22
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红外线编码波形的侦测系统
上传时间: 2013-07-21
上传用户:eeworm
计算机和测控系统总线手册
上传时间: 2013-04-15
上传用户:eeworm
激光多普勒测速技术的原理和实践
上传时间: 2013-04-15
上传用户:eeworm
光测原理和技术
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上传时间: 2013-07-11
上传用户:eeworm
电阻样本
上传时间: 2013-04-15
上传用户:eeworm
泉州火炬电子产品样本(贴片电阻,电容,电感) PDF格式 ++
上传时间: 2013-07-22
上传用户:eeworm
电阻样本 new
上传时间: 2013-07-18
上传用户:eeworm
1206电阻YAGEO
上传时间: 2013-05-27
上传用户:eeworm