霍尔传感器原理--中英双语演示课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,霍尔电流传感器及其应用,1,霍尔电流传感器及其应用,根据传感器的工作原理，我们可以划分成多种类型的传感器，如光电传感器，电荷传感器，电位型传感器，半导体传感器，电传感器，磁传感器，谐振式传感器，电动化学式传感器等。,According to the working principle of the sensor,we can divide the sensors into many types,such as photoelectric sensor,charge sensors,potential type sensor,semiconductor sensor,the electricity sensor,magnetic sensor,resonant sensor,electric chemical formula sensor etc.,2,霍尔电流传感器及其应用,霍尔传感器是利用霍尔元件的霍尔效应原理，如电流，磁场，位移，压力等，为电动势输出。它属于电位型传感器。,Hall sensor is the use of hall element based on the Hall effect principle,such as current,magnetic field,the displacement,pressure,etc,into electromotive force output.It belongs to the potential type sensor.,3,霍尔电流传感器及其应用,当我们的金属或半导体晶片放置在一个磁场，并且如果有一个通过它的电流，它会产生电动势，在垂直方向上的电场和磁场，此种物理现象为霍尔效应。,When we place a metal or semiconductor wafer in a magnetic field,and if there is a current through it,it will produce electromotive force in the perpendicular direction of the electric and magnetic field,calling this kind of physical phenomenon Hall effect.,4,霍尔电流传感器及其应用,电子磁场中产生的洛伦兹力的作用下，通电的半导体芯片的载体，偏转和积累分别在芯片的两侧，从而形成一个电场，称为霍尔电场。,Under the action of the Lorentz force generated in the magnetic field,the carrier of energized semiconductor chip,deflect and accumulate respectively on both sides of the chip,thus forming a electric field,called the Hall electric field.,5,霍尔电流传感器及其应用,霍尔电流传感器的性能特性,测量任意波形的电流，如DC，AC，乃至瞬态峰值参数测量的;,精度高。在工作区中的一般霍尔电流传感器模块的精度高于1，并且是适用于任何波形测量精度;,线性度优于0.5;,良好的动态性能。一般的霍尔传感器模块的动态响应时间小于为7s，跟踪速度di/dt是上述50A/s;,工作频段宽。它可以工作在频率范围从0到20 KHZ非常好;,过载能力强。测量范围宽（010000A）;,高可靠性。平均无故障工作是超过510000小时;,体积小，重量轻，易于安装和系统不会带来任何损失,The performance characteristics of Hall current sensor,Measure the arbitrary waveform current,such as DC,AC,and even to transient peak parameters measurement;,High precision.General Hall current sensor modules precision in the work area is higher than 1%,and the precision is suitable for any waveform measurement;,The linearity is better than 0.5%;,Good dynamic performance.The dynamic response time of general Hall sensor module is less than 7s,and the tracking speed di/dt is above 50A/s;,Working band wide.It can work in the frequency range from 0 to 20 KHZ very well;,Strong overload ability.Wide measurement range（010000A）;,High reliability.The average trouble-free working is more than 5 x 10000 hours;,Small size,light weight,easy to install and it will not bring any loss to the system.,6,霍尔电流传感器及其应用,开环电流传感器的原理图,open loop current sensor principle diagram,7,霍尔电流传感器及其应用,闭环电流传感器的原理图,closed loop current sensor principle diagram,8,霍尔电流传感器及其应用,根据霍尔效应做成的霍尔器件，就是以磁场为工作媒体，将物体的运动参量转变为数字电压的形式输出，使之具备传感和开关的功能。,According to the Holzer Holzer effect device made by magnetic field,is working for the media,the parameters of motion object into a digital voltage output,so that with the sensing and switching function.,9,霍尔电流传感器及其应用,迄今为止，已在现代汽车上广泛应用的,霍尔器件,有：在分电器上作信号传感器、,ABS系统,中的速度传感器、汽车速度表和里程表、,液体,物理量,检测器、各种用电负载的电流检测及工作状态诊断、发动机转速及曲轴角度传感器、各种开关，等等。,So far,Holzer device has been widely used in modern cars are:as the signal sensor,the distributor of ABS system speed sensor,vehicle speed and odometer,liquid physical quantity detector,various electric load current detection and diagnosis of working conditions,a variety of motives speed and crankshaft angle sensor,switch,and so on.,10,