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- W2390513122 abstract "Objective: In magnetic therapy studies,magnetic induction values of magnetic sources can be got through relevant theoretical calculation,but there are certain differences between theoretical values and actual values of space magnetic induction of magnetic sources due to various reasons.This study used circular permanent magnetic sources as research objects,to investigate the consistency of theoretical values and measured values of space magnetic induction of circular permanent magnetic sources to provide basis for quantitative application of magnetic sources.Methods: Taking 30 circular magnetic sources with nominal value of magnetic induction 100mT in pole center,and selected those which magnetic inductions of N,S pole center had smaller differences,On the basis of the polar center magnetic induction values,using finite element numerical calculation method to finish theoretical analysis and magnetic field calculation of magnetic sources,got theoretical values of magnetic induction;At the same time,designed measurement device for spatial magnetic field measurement of magnetic sources,got the measured values corresponding to the theoretical calculation point,analyzed the differences of theoretical values and measured values.Results: The measured values and theory values of selected space magnetic induction magnetic sources had the same trend.In the N,S polar center axis of magnetic sources numerical anastomosis situation was the best,in other positions the error rate was lower than 30%;in direction of magnetic source chamfering the error was bigger,the error rate could be more than 100%.Conclusions: The differences of theory calculated values and measured values of magnetic field induction are system errors,so the theoretical values of space magnetic induction can be used for preliminary guidance of quantitative study of magnetic therapy.But to grasp the magnetic induction of space position of magnetic source accurately,it must need practical measurement or the theoretical calculation result be fixed." @default.
- W2390513122 created "2016-06-24" @default.
- W2390513122 creator A5031243207 @default.
- W2390513122 date "2012-01-01" @default.
- W2390513122 modified "2023-09-23" @default.
- W2390513122 title "Analysis on Theoretical Values and Measured Values of Space Magnetic Induction of Circular Permanent Magnetic Sources Used in Therapy" @default.
- W2390513122 hasPublicationYear "2012" @default.
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