Magnetic anomaly detection is a kind of magnetic technology of target - detection . it is developed with the progress of magnetic sensors , which is based on the phenomena that ferrous objects disturbs the magnetic lines of force of the earth . so we can gain the neccesary informatin of the target through processing the data of the magnetic anomaly signatures . this technology has a wide perspective in the future . this paper will study the technoly of mad through a lot of experiment . the platform for the experiment is made 本论文通过大量实验对磁异信号目标探测技术进行了研究,研制了磁异信号目标探测技术试验平台,利用amr磁阻传感器开发了提取磁异信号特征量?磁梯度计,并基于磁场梯度计通过实验对模拟磁性目标的磁异常场的分布进行了研究,用图示法将其分布特征表现出来,发现了磁异信号测量的最佳角度,并给出了理论分析和结论。
