Inverse Wiedemann effect sensor with pulse excitation

0343160 - FZÚ 2011 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Malátek, M. - Kraus, Luděk
Inverse Wiedemann effect sensor with pulse excitation.
Sensors, 2006. 5th IEEE Conference on. New York: IEEE, 2006, s. 1028-1030. ISBN 978-1-4244-0375-2.
[Sensors, 2006. 5th IEEE Conference on. Daegu (KR), 22.10.2006-25.10.2006]
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: Wiedemann effect * DC current excitation
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
http://www.doi.org/10.1109/ICSENS.2007.355800

The investigation of field sensor based on inverse Wiedemann effect is reported. The sensor was excited by unipolar pulses of 40 to 60 mA with duration from 1 to 5 us. The best sensitivity and linearity of the pulses with the highest DC component. Additional improvement of the sensitivity was reached by tuning the pick-up coil by parallel capacitor. It has been also proven that controlled integration is more favorable detection technique for the pulse excitation than synchronous demodulation.
Trvalý link: http://hdl.handle.net/11104/0005898