1. Hall Effect Sensor Hall effect : Dr. Edvin Hall , 1879
Johns Hopkins University
Hall sensor :
Joe Maupin & Evertt Vorthmann , 1965

2. Hall effect General features
• True solid state
• Long life
• High speed operation - over 100 kHz possible
• Operates with stationary input (zero speed)
• No moving parts
• Logic compatible input and output
• Broad temperature range (-40 to +150°C)
• Highly repeatable operation

3. Hall effect Theory

4. Hall effect Theory

5. Hall effect Theory

6. Hall effect Conditional Circuit
!!! Silicon exhibits the piezoresistance effect

7. Hall effect Conditional Circuit

8. Hall effect Digital Hall sensors

9. Hall effect Analog Hall sensors

10. Hall effect Magnetic system
Unipolar head-on mode
Unipolar slide-by mode
Bipolar slide-by mode
Bipolar slide-by mode (ring magnet)
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11. Hall effect Magnetic system
Unipolar head-on mode
Nonlinear
Accuracy medium

12. Hall effect Magnetic system
Unipolar slide-by mode
Nonlinear
Accuracy low
Symmetric

13. Hall effect Magnetic system
Bipolar slide-by mode
Accuracy medium
Dissymmetry

14. Hall effect Magnetic system

15. Hall effect Magnetic system
Bipolar slide-by mode (ring magnet)

16. Hall effect Magnetic system comparison chart

17. Hall effect Application – Vane operated position sensors

18. Hall effect Application – Vane operated position sensors

19. Hall effect Application – Other in position
Sequence sensor
Proximity sensor
Office machine sensors
Multiple position sensor
Anti-skid sensor
Piston detection sensor

20. Hall effect Application – Sequence sensor
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21. Hall effect Application – Proximity sensor
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22. Hall effect Application – Office machine sensors
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23. Hall effect Application – Multiple position sensor
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24. Hall effect Application – Anti-skid sensor
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25. Hall effect Application – Piston detection sensor
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