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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F07%3A03132629%21RIV08-MSM-21230___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Je prezentována nová technika zpracování výstupního signálu pulsně buzených PCB fluxgate senzorů. Návrh elektroniky je založen na průběhu výstupního signálu s bipolárními pulsy a amplitudou a polaritou odpovídající měřenému poli. Jsou využity dva spínané integrátory aktivní pouze v době přítomnosti těchto pulsů. Dále byl úspěšně implentován zpětnovazební režim PCB fluxgate senzorů. Výsledky ukazují výrazné zlepšení z hlediska šumu pulsně buzených senzorů, v porovnání s klasickou detekcí na druhé harmonické. Nejlepší výsledky, dosažené s PCB sensory byly z hlediska šumu 20 pT/sqrt Hz @ 1 Hz, nelinearita lepší než 70 ppm (v rozsahu +- 50 uT ) a stabilita offsetu 3.7 nT během 3.5 hodiny. A novel technique of signal extraction method for pulse excited printed circuit board (PCB) fluxgate sensors is presented. The signal extraction electronics takes an advantage of the sensor output voltage waveform shape with bipolar consecutive pulses with polarity and amplitude corresponding to the measured field and utilizes two gated integrators active only in the presence of the sensor output pulses. The feedback loop operation has also been implemented and successfully verified for PCB fluxgate sensors. The results indicate a significant improvement in the noise of pulse-excited sensors when compared to classical 2nd harmonic detection of signal from these pulse excited sensors. The best results with PCB fluxgate sensor were noise of 20 pT/sqrt Hz @ 1 Hz, linearity error below 70 ppm (in +- 50 uT full scale range), offset stability of 3.7 nT within 3.5 hours. A novel technique of signal extraction method for pulse excited printed circuit board (PCB) fluxgate sensors is presented. The signal extraction electronics takes an advantage of the sensor output voltage waveform shape with bipolar consecutive pulses with polarity and amplitude corresponding to the measured field and utilizes two gated integrators active only in the presence of the sensor output pulses. The feedback loop operation has also been implemented and successfully verified for PCB fluxgate sensors. The results indicate a significant improvement in the noise of pulse-excited sensors when compared to classical 2nd harmonic detection of signal from these pulse excited sensors. The best results with PCB fluxgate sensor were noise of 20 pT/sqrt Hz @ 1 Hz, linearity error below 70 ppm (in +- 50 uT full scale range), offset stability of 3.7 nT within 3.5 hours.
dcterms:title
Nízkopříkonové fluxgate senzory s hradlovaným integrátorem Low-power Fluxgate Signal Processing Using Gated Differential Integrator Low-power Fluxgate Signal Processing Using Gated Differential Integrator
skos:prefLabel
Low-power Fluxgate Signal Processing Using Gated Differential Integrator Nízkopříkonové fluxgate senzory s hradlovaným integrátorem Low-power Fluxgate Signal Processing Using Gated Differential Integrator
skos:notation
RIV/68407700:21230/07:03132629!RIV08-MSM-21230___
n4:strany
149;152
n4:aktivita
n15:Z
n4:aktivity
Z(MSM6840770015)
n4:cisloPeriodika
1
n4:dodaniDat
n8:2008
n4:domaciTvurceVysledku
n7:3157644 n7:2948354 n7:9294635
n4:druhVysledku
n18:J
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n5:predkladatel
n4:idSjednocenehoVysledku
431504
n4:idVysledku
RIV/68407700:21230/07:03132629
n4:jazykVysledku
n9:eng
n4:klicovaSlova
fluxgate
n4:klicoveSlovo
n10:fluxgate
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[AF799CCCBFFF]
n4:nazevZdroje
Sensor Letters
n4:obor
n13:JB
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n8:2007
n4:svazekPeriodika
5
n4:tvurceVysledku
Ripka, Pavel Janošek, Michal Kubík, Jan
n4:zamer
n11:MSM6840770015
s:issn
1546-198X
s:numberOfPages
4
n12:organizacniJednotka
21230