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  • Není k dispozici (cs)
  • Sensors based on the giant magnetoresistance (GMR) effect have been used for years as the reading heads in the hard-disk technology. However, just a simple on/off detection function has been required in that application. Various techniques have been developed to make the GMRs suitable for a linear measurement of a magnetic field. Using a proper technique, we can achieve an alternating output signal of the sensor, that can be convenient for further signal processing. This paper deals with the method of alternating sensitive-axis field biasing and its influence on the sensor properties. We show that a squarewave biasing is preferred over the sinewave one, as it results in a higher sensor sensitivity and lower noise. With optimized reading circuits, we achieved a sensitivity of 20 mV/V/kA/m,a hysteresis of 0.5% in the ± 300 A/m range and a noise PSD value of 30 mA/m RMS/sqrt(Hz) at 1 Hz.
  • Sensors based on the giant magnetoresistance (GMR) effect have been used for years as the reading heads in the hard-disk technology. However, just a simple on/off detection function has been required in that application. Various techniques have been developed to make the GMRs suitable for a linear measurement of a magnetic field. Using a proper technique, we can achieve an alternating output signal of the sensor, that can be convenient for further signal processing. This paper deals with the method of alternating sensitive-axis field biasing and its influence on the sensor properties. We show that a squarewave biasing is preferred over the sinewave one, as it results in a higher sensor sensitivity and lower noise. With optimized reading circuits, we achieved a sensitivity of 20 mV/V/kA/m,a hysteresis of 0.5% in the ± 300 A/m range and a noise PSD value of 30 mA/m RMS/sqrt(Hz) at 1 Hz. (en)
Title
  • Není k dispozici (cs)
  • Improved GMR Sensor Biasing Design
  • Improved GMR Sensor Biasing Design (en)
skos:prefLabel
  • Není k dispozici (cs)
  • Improved GMR Sensor Biasing Design
  • Improved GMR Sensor Biasing Design (en)
skos:notation
  • RIV/68407700:21230/04:03094824!RIV/2005/MSM/212305/N
http://linked.open.../vavai/riv/strany
  • 254 ; 258
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 212300016)
http://linked.open...iv/cisloPeriodika
  • 1-3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
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http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 567523
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21230/04:03094824
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  • Not available (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [3870E513D3E1]
http://linked.open...i/riv/nazevZdroje
  • Sensors and Actuators
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 110
http://linked.open...iv/tvurceVysledku
  • Ripka, Pavel
  • Vopálenský, Michal
  • Kubík, Jan
  • Tondra, M.
http://linked.open...n/vavai/riv/zamer
issn
  • 0924-4247
number of pages
http://localhost/t...ganizacniJednotka
  • 21230
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