Title :
Computations of the accuracy of VSM
Author_Institution :
Center for Meas. Stand., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
The accuracy of the measurements by vibrating-sample magnetometer (VSM) has been studied by the computations of the sensitivity function. The arrangement of the coils is important to approach a wide spatial-uniformity of the sensitivity function. The errors due to the directional displacements of the sphere are lower than 2% if the mis-alignments are controlled to within some specific values. The uncertain radius of the sphere is also an origin of errors.
Keywords :
error analysis; magnetometers; measurement errors; performance evaluation; sensitivity analysis; VSM; accuracy; directional displacements; errors; misalignments; sensitivity function; spatial-uniformity; vibrating-sample magnetometer; Calibration; Coils; Displacement control; Error correction; Magnetic fields; Magnetic moments; Measurement standards; Open loop systems; SQUID magnetometers; Vibration measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546547
