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Magnetoresistive sensors

Magnetoresistive sensors. Invent at 1856 William Thompson Lord Kelvin. Magnetoresistive sensors All types. Anisotropic Magnetoresistive (AMR) Giant Magnetoresistive (GMR) Colossal Magnetoresistance (CMR). Magnetoresistive sensors Theory of AMR. Magnetoresistive sensors Theory of AMR.

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Magnetoresistive sensors

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  1. Magnetoresistive sensors Invent at 1856 William Thompson Lord Kelvin

  2. Magnetoresistive sensorsAll types • Anisotropic Magnetoresistive (AMR) • Giant Magnetoresistive (GMR) • Colossal Magnetoresistance (CMR)

  3. Magnetoresistive sensorsTheory of AMR

  4. Magnetoresistive sensorsTheory of AMR Barber Pole Bias

  5. Magnetoresistive sensorsTheory of AMR

  6. Magnetoresistive sensorsOperation of AMR

  7. Magnetoresistive sensorsOperation of AMR (HMC1501)

  8. Magnetoresistive sensorsOperation of AMR (HMC1501)

  9. Magnetoresistive sensorsOperation of AMR (HMC1501)

  10. Magnetoresistive sensorsOperation of AMR (HMC1512)

  11. Magnetoresistive sensorsOperation of AMR (HMC1512)

  12. Magnetoresistive sensorsOperation of AMR (HMC1512)

  13. Magnetoresistive sensorsOperation of AMR (HMC1512)

  14. Magnetoresistive sensorsTypical application • Cylinder position sensing in pneumatic cylinders • Elevator sensor • Lid sensor for laptop computers • Position sensor for materials handling equipment (lift trucks) • Blood analyzer • Magnetic encoders

  15. Magnetoresistive sensorsComparision of Hall effect & MR technologies

  16. Magnetoresistive sensorsGiant Magnetoresistive (GMR) • Observe at 1988 • Magnetoresistivity > 70%

  17. Magnetoresistive sensorsGiant Magnetoresistive (GMR) - Theory

  18. Magnetoresistive sensorsGiant Magnetoresistive (GMR) - Application • Proximity Detection • Displacement Sensing • Rotational Reference Detection

  19. Colossal Magnetoresistive (CMR) • Observe at 1988 • Magnetoresistivity > 1000% ~ 10000000%

  20. Magnetoresistive sensorsComparison

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