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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. (cs)
- 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. (en)
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Title
| - Low-power Fluxgate Signal Processing Using Gated Differential Integrator
- Nízkopříkonové fluxgate senzory s hradlovaným integrátorem (cs)
- Low-power Fluxgate Signal Processing Using Gated Differential Integrator (en)
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skos:prefLabel
| - Low-power Fluxgate Signal Processing Using Gated Differential Integrator
- Nízkopříkonové fluxgate senzory s hradlovaným integrátorem (cs)
- Low-power Fluxgate Signal Processing Using Gated Differential Integrator (en)
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skos:notation
| - RIV/68407700:21230/07:03132629!RIV08-MSM-21230___
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http://linked.open.../vavai/riv/strany
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| - RIV/68407700:21230/07:03132629
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicoveSlovo
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| - US - Spojené státy americké
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http://linked.open...in/vavai/riv/obor
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http://linked.open...iv/tvurceVysledku
| - Janošek, Michal
- Ripka, Pavel
- Kubík, Jan
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http://linked.open...n/vavai/riv/zamer
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