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Hybrid Dual-Sensor Magnetic Measurement System

📑 5 slides 👁 31 views 📅 3/16/2026
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Hybrid Dual-Sensor System

Combines GMR and TMR sensors for enhanced magnetic field measurement.

Hybrid Dual-Sensor System
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GMR Sensor Technology

  • Uses layered magnetic materials to detect resistance changes in magnetic fields.
  • Structure: Ferromagnetic layers separated by a non-magnetic metal spacer.
  • Working principle: Resistance varies with parallel or antiparallel magnetic alignment.
  • Ideal for medium to strong magnetic field measurements.
GMR Sensor Technology
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TMR Sensor Technology

  • Relies on quantum tunneling through an ultra-thin insulating barrier.
  • Structure: Ferromagnetic layers with an insulating spacer for electron tunneling.
  • Higher sensitivity than GMR, especially in weak magnetic fields.
  • Resistance changes significantly with magnetic alignment.
TMR Sensor Technology
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Dual-Sensor Auto-Range

  • TMR measures weak fields; GMR handles stronger fields for extended dynamic range.
  • Intelligent algorithm automatically switches between sensors based on field strength.
  • Eliminates inaccuracies from single-sensor limitations.
  • Graphical representation shows seamless transition between sensor responses.
Dual-Sensor Auto-Range
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Conclusion & Benefits

  • Solves dynamic range, temperature drift, and long-term stability issues.
  • Integrates auto-range, temperature compensation, and self-calibration.
  • Enhances accuracy for industrial and automotive applications.
  • Future-proof solution for reliable magnetic field measurements.
Conclusion & Benefits
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