A High Accuracy of Magnetometer by Using Independent Directional Magnetic Field Measurement Technique

Athirot Mano; Wisut Titiroongruang

doi:10.4028/www.scientific.net/AMM.565.133

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 565A High Accuracy of Magnetometer by Using...

A High Accuracy of Magnetometer by Using Independent Directional Magnetic Field Measurement Technique

Abstract:

In a measurement of magnetic flux density with high accuracy by using Hall effect sensor must be considered position of Hall sensor, that perfect perpendicular with magnetic flux line for measurement. Only one Hall element can cause measuring error. Therefore, this paper presents an application of independent directional magnetic field measurement technique on two dimensions for high accuracy magnetometer. It is presented by using two Hall sensors locate perpendicular to each other and use the relation of the two voltage output signal from both Hall sensors to calculate constant Hall voltage and Magnetic flux density with high accuracy by using trigonometric function with Lab-View programming. And as the result of experiment, this technique can reduce the limitation in term of this angle in the range magnetic flux density can be measured 0-1800 gauss. A calibration curve of this system compare with standard Gauss meter shows the coefficient of determination (R²) equal to 1 and has the accuracy percentage as less than 0.5%.

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Periodical:

Applied Mechanics and Materials (Volume 565)

Pages:

133-137

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.565.133

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Online since:

June 2014

Authors:

Athirot Mano*, Wisut Titiroongruang

Keywords:

Hall Effect Sensor, Magnetometer, Measurement Technique

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References

[1] Athirot Mano, Santi Chatruprachewin, Laddawan Supadee, Chaba Suriyaammaranon and Wisut Titiroongruang, Independent Directional Magnetic Field Measurement Technique, Proceeding of the 33rd Electrical Engineering Conference(EECON-33)(2010).

DOI: 10.1109/inec.2010.5424598

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DOI: 10.4028/www.scientific.net/amr.811.347

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