用标准件对梯度磁场定标  

Based on the CCD Measuring Thermal Expansion Coefficient of Metal Wire

作　　者：周珺[1] 

机构地区：[1]兰州交通大学,甘肃兰州730070

出　　处：《大学物理实验》2015年第3期42-44,共3页Physical Experiment of College

摘　　要：就标准厚度卡片在霍尔传感器的定标方面的应用作了有益的探讨。在纵向测量微小长度时,霍尔片处于磁场边缘位置,其对磁场的梯度更大,即灵敏度更高,且靠中心位置的线性更好。The standard thickness of the card in the application of hall sensor calibration for the beneficial dis-cussion. When longitudinal measure small length, hole position on the verge of magnetic field, the magnetic field gradient is bigger,the higher sensitivity,and linear better by the center position.

关 键 词：梯度磁场 定标 位移传感器 卡片 

分 类 号：O4-33[理学—物理]