一种磁场测量仪的设计

为了方便准确地测量永磁体表面磁场强弱，脉冲磁场强弱;判断磁场极性;文章介绍了利用霍尔片做传感器，由全电子电路完成放大、求绝对值、上下报警等功能的实用高斯计电路及其原理.根据实际需要选配纵向或轴向探关，配置液晶显示，根据表头显示数值的正负，结合探头可判断磁场极性;上下限根据实测要求可随时更改设定，当所测磁场超出上限或下限时，声光报警指示.特别适合弱磁场的测量.

Design of One Magnetic Field Measure

In order to measure,easily and accurately,strongly or weakly magnetic field for the surface of perpetual magnet and the pulse;and judge the extreme for magneticfield. There introduce how to make sensors by using Hall slice, and the instrument of Gauss to measuring circuit and its principles with the functions of amplification ,attaining absolute value and giving an alarm by pure electron circuit. Select longitudinal or horizontal probe,according to fact;rig Liquid Crystaldisplay. The extreme for magnetic field can be judged by positive or negative number that the dial displaying and combining with probe. The bottommost or topmosthas been set up can be changed at any time in view of actual necessary. When magnetic field has been measured surpasses the bottommost or topmost, audio alarm andlight alarm will work. It fits especially measuring weakly magnetic field.