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dc.contributor.authorRipka, Pavel
dc.contributor.authorChoi, San On
dc.contributor.authorTipek, Alois
dc.contributor.authorKawahito, Shoji
dc.contributor.authorIshida, Makoto
dc.date.accessioned2012-02-28T10:07:50Z
dc.date.available2012-02-28T10:07:50Z
dc.date.issued2001-07
dc.identifier.citationRipka, P. - Choi, S.O. - Tipek, A.: Pulse Excitation of Micro-Fluxgate Sensors In: IEEE Transactions on Magnetics. 2001, vol. 37, no. 4, p. 1998-2000. ISSN 0018-9464.cze
dc.identifier.urihttp://hdl.handle.net/10467/9222
dc.description.abstractMiniature fluxgate sensors with symmetrical closed core elements on both sides of the planar coils were manufactured using standard microtechnology. The new sensors have shown substantial improvement over the standard single-sided micro.-fluxgate sensors: for the same field range the sensor noise was reduced 10-times to 20 nT rms (20 mHz … 10 Hz) and the perming suppressed below 5 μT, for field shocks of 6 mT. The maximum sensitivity for sinewave excitation was 32 V/μT for 1 MHz frequency and 200 mA p-p excitation current amplitude. Pulse shape of the excitation current allows use of high current peaks to suppress perming, while the rms value is low. Using a 20% duty factor squarewave excitation with 180 mA p-p amplitude, the sensitivity was twice that of the sinewave excitation, while the chip temperature dropped from 80°C to 40°C.eng
dc.language.isocescze
dc.publisherIEEEcze
dc.rights© 2001 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.eng
dc.subjectfluxgateeng
dc.subjectmagnetic field sensorseng
dc.subjectmagnetometerseng
dc.subjectmicrofluxgateeng
dc.titlePulse Excitation of Micro-Fluxgate Sensorscze
dc.typečlánek z tištěného periodikacze
dc.identifier.doi10.1109/20.951033


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