Design And Implementation Of Overhauser Magnetometer Pc Software

The Overhauser magnetometer reduces power consumption based on the traditional proton precession magnetometer while further accensating sensitivity.When the Overhauser magnetometer is used to obtain the magnetic anomaly of the target,due to the complexity of the actual geological problem,it is often necessary to perform targeted data processing on the measured magnetic anomaly.In order to realize the industrialization requirements of Overhauser magnetometer of this group,improve the supporting equipment and enrich the software function of PC,for the magnetometer independently developed by our group,This paper designed a PC software JEMLab?Electrical Sensing Laboratory of Jilin University?,based on VC++programming language and MFC framework.Its installation program has been engraved into DVD-ROM,and the application has become the supporting equipment for the research and development of JOM and JPM magnetometers.The interface functions that JEMLab has realized include:the construction of the main interface and interface controls;receiving the magnetometer data through the USB serial port of the computer;the image display of the magnetic data graph;the writing and reading of the magnetic data file in the computer Take;and other external program link functions.The data processing functions that JEMLab has realized include:for the magnetic measurement data to be interfered by the geomagnetic daily variation,the experiment proves that the magnetic anomaly curve obtained after using the JOM-4S magnetometer for field measurement and running the diurnal correction program in the software Significantly filtering the disturbance of geomagnetic daily variation;for the acquisition of the magnetic field reference value in a certain space,this paper discusses the normal field correction method through the IGRF-12 international geomagnetic reference field.The error of calculating the geomagnetic field by running IGRF-12 in software is less than 0.1nT;for the latitude and longitude coordinates measured by the JOM magnetometer,this paper discusses in detail the method of converting it into Gaussian projection and UTM projection to generate the plan.The experiment proves that the measured value of the attached GPS data is measured by the JOM-4S magnetometer.After coordinate transformation processing,the measurement location can be accurately located in the satellite map.When the calculation error of UTM projection and other map processing software is less than0.1m,the back calculation error is less than 10^-4°;The modified application requirements,the software design implements the data editor.