"1"^^ . "B\u011Bhem \u0159e\u0161en\u00ED projektu jsme navrhli dvou-dom\u00E9nov\u00FD model ortogon\u00E1ln\u00EDho fluxgate senzoru, kter\u00FD l\u00E9pe charakterizuje fluxgate efekt v tenk\u00FDch vrstv\u00E1ch, ne\u017E dosavadn\u00ED model Primdahla. Platnost modelu jsme experiment\u00E1ln\u011B ov\u011B\u0159ili. Vytvo\u0159ili jsme tak\u00E9 jednoduch\u00FD model pro nov\u011B navr\u017Een\u00FD bezc\u00EDvkov\u00FD fluxgate senzor, jeho\u017E princip byl patentov\u00E1n (n\u00E1rodn\u00ED a evropsk\u00FD patent). Ve spolupr\u00E1ci se \u0161pan\u011Blsk\u00FDmi partn"@cs . "27"^^ . "27"^^ . . "Fluxgates are the most sensitive room-temperature magnetic sensors. Up to now the efforts to miniaturize them led to substantial degradation of their parameters.Our recent results suggest that transverse fluxgate effect in thin layers is promising for future miniature magnetic sensors with high resolution (below 1 nT) and good stability (10 nT in the wide temperature range). We also have found that the single-domain model developed by Primdahl cannot explain the principle of operation of these sensorsand it cannot be used for their design. We will develop and verify a new model for thin-film transverse fluxgates. The basic technology used for the new sensors will be electrodeposition of amorphous, nanocrystalline and microcrystalline layers. We also plan to test laser ablation and other technologies available at the Institute of Physics. We will study mechanisms of induced anisotropy in these layers and their effect on sensor performance.In the frame of the proposed project we also plan to design"@en . "Fluxgate effect in thin layers"@en . . . . "0"^^ . "Fluxgate efekt v tenk\u00FDch vrstv\u00E1ch" . "magnetic sensors" . "We proposed and experimentally verified new two-domain model of orthogonal fluxgate sensor. This model describes the fluxgate effect in thin films better than the commonly accepted model developed by Primdahl. The model was experimentally verified.\u00A0 We also patented new coilless fluxgate sensor and developed a simple model for this device. In collaboration with our Spanish partners we improved te"@en . . . "2010-12-31+01:00"^^ . . . "2008-01-01+01:00"^^ . . . . "2010-04-16+02:00"^^ . "Fluxgate senzory jsou nejcitliv\u011Bj\u0161\u00ED magnetick\u00E9 senzory, kter\u00E9 pracuj\u00ED za pokojov\u00FDch teplot. Dosavadn\u00ED pokusy o jejich miniaturizaci v\u0161ak vedly k prudk\u00E9mu zhor\u0161en\u00ED parametr\u016F.Na\u0161e ned\u00E1vn\u00E9 v\u00FDsledky nazna\u010Duj\u00ED, \u017Ee transvers\u00E1ln\u00ED fluxgate efekt v tenk\u00FDch vrstv\u00E1ch je nad\u011Bjn\u00FDm principem pro budouc\u00ED miniaturn\u00ED magnetick\u00E9 senzory s vysok\u00FDm rozli\u0161en\u00EDm (pod 1 nT) a dobrou stabilitou (10 nT v \u0161irok\u00E9m rozsahu teplot). Z\u00E1rove\u0148 jsme v\u0161ak zjistili, \u017Ee jednodom\u00E9nov\u00FD model odvozen\u00FD Primdahlem nevysv\u011Btluje uspokojiv\u011B princip \u010Dinnosti t\u011Bchto senzor\u016F a nen\u00ED ho mo\u017Eno pou\u017E\u00EDt p\u0159i jejich n\u00E1vrhu.Odvod\u00EDme a verifikujeme nov\u00FD model \u010Dinnosti tenkovrstv\u00FDch fluxgate senzor\u016F.Z\u00E1kladn\u00ED technologi\u00ED pro nov\u00E9 senzory bude elektrodepozice amorfn\u00EDch, nanokrystalick\u00FDch a mikrokrystalick\u00FDch vrstev. Pl\u00E1nujeme i vyzkou\u0161en\u00ED laserov\u00E9 ablace a dal\u0161\u00EDch technologi\u00ED dostupn\u00FDch ve Fyzik\u00E1ln\u00EDm \u00FAstavu. Budeme studovat mechanismy indukovan\u00E9 anizotropie v t\u011Bchto vrstv\u00E1ch a jej\u00ED vliv na parametry.Chceme tak\u00E9 ov\u011B\u0159it i zcela nov\u00FD typ" . "http://www.isvav.cz/projectDetail.do?rowId=GA102/08/0743"^^ . "GA102/08/0743" . . "magnetic sensors; fluxgate"@en . . . . "2015-02-09+01:00"^^ . . "1"^^ . . .