Title :
Characterization of Magnetic Sensors at the Operational Temperatures of Industrial Applications
Author :
Harmon, S.A.C. ; Hall, M.J. ; Turner, S. ; Hillier, N.
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
Existing measurement facilities do not allow the characterization of magnetic sensors at the operational temperatures encountered in a range of industrial applications. Routine calibration of such sensors can be carried out by various facilities, but are limited to ambient laboratory temperatures only. The National Physical Laboratory (NPL) has developed measurement facilities for the characterization of these sensors over a temperature range of -55 °C to +125 °C reflecting the actual temperatures experienced during their operation. This paper will describe the development of the traceable measurement systems at NPL that enables this characterization and will present results for fluxgate and AMR type sensors.
Keywords :
enhanced magnetoresistance; fluxgate magnetometers; magnetic sensors; magnetoresistive devices; AMR type sensors; anisotropic magnetoresistance; fluxgate type sensors; industrial applications; magnetic sensors; temperature -55 degC to 125 degC; traceable measurement systems; Magnetic sensors; Magnetometers; Sensor phenomena and characterization; Temperature distribution; Temperature measurement; Temperature sensors; Advanced magnetic sensors; harsh environments; low field environment; operational temperatures;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2359331
