Title :
AC magnetic flux density standards in the low frequency range
Author :
Park, Po Gyu ; Kim, Y.G. ; Kalabin, V.N. ; Shifrin, V. Ya
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea
Abstract :
An AC magnetic flux density standard system was constructed for calibration in KRISS magnetometers and for the testing of the magnetic field characteristics of sensors and materials in the frequency range below 20 kHz. This system consists of an AC magnetic field converter, a Helmholtz coil, a voltage comparator, a voltmeter, a standard resistor, and a computer with a program for automatic measurement. The expanded uncertainty (k=2) is 0.2% in the range of 1 Hz to 20 kHz.
Keywords :
calibration; comparators (circuits); magnetic flux; magnetic sensors; magnetic variables measurement; magnetometers; measurement standards; resistors; voltmeters; AC magnetic field converter; Helmholtz coil; KRISS magnetometers; ac magnetic flux density standards; automatic measurement; calibration; expanded uncertainty; frequency 1 Hz to 20 kHz; low frequency range; magnetic field characteristics; sensors; standard resistor; voltage comparator; voltmeter; Calibration; Frequency; Magnetic field measurement; Magnetic flux density; Magnetic materials; Magnetic sensors; Magnetometers; Materials testing; Sensor phenomena and characterization; System testing;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574850
