Signal conditioning and processing for metallic Hall sensors.

0481377 - ÚFP 2018 RIV CH eng J - Journal Article
Entler, Slavomír - Ďuran, Ivan - Sládek, P. - Vayakis, G. - Kočan, M.
Signal conditioning and processing for metallic Hall sensors.
Fusion Engineering and Design. Roč. 123, November (2017), s. 783-786. ISSN 0920-3796. E-ISSN 1873-7196.
[SOFT 2016: Symposium on Fusion Technology /29./. Prague, 05.09.2016-09.09.2016]
R&D Projects: GA MŠMT LG14002
Institutional support: RVO:61389021
Keywords : Hall sensor * Lock-in * Synchronous detection * Current spinning * Hall effect * Planar hall effect suppression
OECD category: Nuclear related engineering
Impact factor: 1.437, year: 2017
http://www.sciencedirect.com/science/article/pii/S0920379617305070

Two electronics prototypes for the ITER outer vessel steady-state magnetic field Hall sensors based ona lock-in signal processing and current spinning technique were developed. The prototypes, the firstusing a rectangular lock-in signal processing with sensor offset cancellation and the second employ-ing advanced lock-in signal processing with sensor and electronics offset cancellation, were comparedwith a DC technique and commercial lock-in amplifier. The influence of long interconnection cables,white noise, and interfering planar Hall effect to a measurement accuracy was evaluated. The planarHall voltage suppression by the current spinning technique was investigated. Whilst the rectangularlock-in amplifier prototype failed to meet the ITER accuracy requirement, the advanced lock-in amplifierprototype demonstrated required functionality and accuracy.
Permanent Link: http://hdl.handle.net/11104/0277020