Experimental Study Based On The Objectives Of The Magnetic Anomaly Signal Detection

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. Magnetic gradiometer sensors based on the AMR sensors are build up and by which the experiment of magnetic anomaly field of ferrous targets are made which show the characters through the way of figure.It give the model of searching sensors imitating the way that bacteria look for the food and then the searching sensors for the ferrous targets are made up ,which are also based on the HMC1022-AMR sensors.Then the research of the searching and the results was given.At last,the conclusions of this paper are given and the suggestions for future study are made.