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Low-noise magnetic observatory variometer with race-track sensors

SYSNO ASEP	0466154
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Low-noise magnetic observatory variometer with race-track sensors
Author(s)	Janošek, M. (CZ) Petrucha, V. (CZ) Vlk, Michal (GFU-E)_{RID, ORCID}
Source Title	IOP Conference Series: Materials Science and Engineering, 108. - Bristol : IOP Publishing, 2016 - ISSN 1757-8981
Pages	012026/1-012026/4
Number of pages	4 s.
Publication form	Print - P
Action	International Conference on Materials and Applications for Sensors and Transducers (IC-MAST2015) /5./
Event date	27.09.2015 - 30.09.2015
VEvent location	Mykonos
Country	GR - Greece
Event type	WRD
Language	eng - English
Country	GB - United Kingdom
Keywords	observatory magnetometer ; analog to digital conversion ; transducers
Subject RIV	DE - Earth Magnetism, Geodesy, Geography
R&D Projects	LM2015079 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	GFU-E - RVO:67985530
UT WOS	000376204700026
EID SCOPUS	84964770900
DOI	10.1088/1757-899X/108/1/012026
Annotation	We present a low-noise, high-stability observatory magnetometer with race-track sensors, as developed by the Czech Technical University in Prague for National Observatory of Athens. As opposed to the standard instruments, we used our novel race-track fluxgate sensors with planar oval core which were cut by state-of-the art pico-second UV-laser. The noise performance of the complete electronics and sensor chain is below 6 pT/v Hz @ 1 Hz. The electronics uses 24-bit 200-Hz A/D converter with simultaneous sampling and all digital processing is done in FPGA. The variometer with the sensors mounted on a MACOR cube has been successfully calibrated by scalar method.
Workplace	Geophysical Institute
Contact	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Year of Publishing	2017

Number of the records: 1