y computer, and through data simulation to show the vector distribution of spatial Рmagnetic field intensity,so as to realize the visual measurement and display function of spatial magnetic field. РExperimental results show that the accuracy of the magnetic field measurement system is 1 (xT, the measuring Рrange is ±8 500 (xT, and the measurement error is 0.62%.This visualization measurement system of spatial Рmagnetic field has high precision,wide range , which can visually display the spatial magnetic field distribution, Рcan assist university physics experiments teaching, also can be applied to the measurement of complex and Рvariable magnetic fields.РKey words: three-dimensional magnetic field; magnetic induction intensity; magnetic sensor ； single chip Рmicrocomputer ； data simulation
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