Transportable calibration system for scalar geomagnetometers

Autor: V. N. Kalabin, V A Ryabkov, T I Chikvadze, V Ya Shifrin, Po Gyu Park
Rok vydání: 2005
Předmět:
Zdroj: Metrologia. 42:394-399
ISSN: 1681-7575
0026-1394
DOI: 10.1088/0026-1394/42/5/009
Popis: A working example of a transportable calibration system with reproduction by a highly stable scalar magnetic flux density (MFD) in the range from 20 µT to 100 µT was researched and developed. The random standard deviation was 0.003 nT for a 1 s interval of measurements, which included uncertainty due to reproduction and the measurement canal. The MFD instability did not exceed 0.03 nT for 10 h. The systematic uncertainty was 0.2 nT when the dimensions of the sensor sample were 80 mm or less.
Databáze: OpenAIRE