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Magnetoresistive sensors Invent at 1856 William Thompson Lord Kelvin
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
2cos
Barber Pole Bias
Magnetoresistive sensors
Theory of AMR
Magnetoresistive sensors
Operation of AMR
Magnetoresistive sensors
Operation of AMR (HMC1501)
Magnetoresistive sensors
Operation of AMR (HMC1501)
Magnetoresistive sensors
Operation of AMR (HMC1501)
Magnetoresistive sensors
Operation of AMR (HMC1512)
Magnetoresistive sensors
Operation of AMR (HMC1512)
Magnetoresistive sensors
Operation of AMR (HMC1512)
Magnetoresistive sensors
Operation of AMR (HMC1512)
Magnetoresistive sensors
Typical 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
Magnetoresistive sensors
Comparision of Hall effect & MR technologies
Magnetoresistive sensors
Giant Magnetoresistive (GMR)
Observe at 1988 Magnetoresistivity > 70%
Magnetoresistive sensors
Giant Magnetoresistive (GMR) - Theory
Magnetoresistive sensors
Giant Magnetoresistive (GMR) - Application
Proximity Detection Displacement Sensing Rotational Reference Detection
Colossal Magnetoresistive (CMR)
Observe at 1988 Magnetoresistivity > 1000% ~ 10000000%
Magnetoresistive sensors
Comparison
