A measurement technique for the analysis of magnetic field emissions by power electronic equipment

2002 ◽  
Author(s):  
Angrisani ◽  
D'Arco ◽  
De Capua
Keyword(s):  
Magnetic Field ◽  
Measurement Technique ◽  
Electronic Equipment ◽  
Power Electronic ◽  
Field Emissions

Ultra-low frequency (ULF) magnetic field emissions associated with some major earthquakes occurred in Indian Subcontinent

2020 ◽  
Vol 211 ◽  
pp. 105469
Author(s):  
Swati ◽  
Birbal Singh ◽  
Devbrat Pundhir ◽  
Ashwini K. Sinha ◽  
K. Madhusudan Rao ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Indian Subcontinent ◽  
Low Frequency ◽  
Field Emissions

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

2014 ◽  
Vol 565 ◽  
pp. 133-137
Author(s):  
Athirot Mano ◽  
Wisut Titiroongruang
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Flux Density ◽  
Measurement Technique ◽  
Field Measurement ◽  
High Accuracy ◽  
Two Dimensions ◽  
Magnetic Flux Density ◽  
Magnetic Field Measurement ◽  
Hall Sensors

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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