The Measurement about the Relative Displacement Vector of the Earths Magnetic Field
This The article proposes a new approach of measuring the objects relative displacement vector on the earths surface and develops measuring circuit and data processing circuit.We use three magnetic sensors which are mutually vertical and dedicated chip PN111096 to measure. The three magnetic sensors all have their respective magentic circuit and temperature-compensation circuit and the antiinterference circuit.PNI11096 opens data register for magnetic sensor. Under the control of PN111096,the three magnetic sensors measure the three mutually perpendicular component data of X, Y, Z.And then the sensors convey results to SCM by SPI interface. System storages the earths magnetic field intensity data of the departure AO and the destination Al while measuring. So get the changes of the earths magnetic flux density .Therefore,we can calculate the objects relative displacement vector.The article analyses the interfrence factors in the measurement process and the corresponding disposal methods.Finally,the paper describes the technologys applicate prospect.
Earths magnetic field Displacement vector Magnetic Sensor SCM
Lixiu Ma Boxue Tan Guiqin Zhang Changmei Yu
Shandong University of Technology School of Electrical and Electronic Engineering Zibo, China
国际会议
杭州
英文
43-45
2011-08-26（万方平台首次上网日期，不代表论文的发表时间）