Active speed/position sensors (Hall or GMR)
Hall effect and GMR sensors are of the active type,
requiring a supply of electrical power. They detect the magnetic fi eld created by the passage of gear teeth or the alternating poles of a ring magnet, delivering an electrical signal that the electronic control system can process to determine the speed and/or angular position of the rotating shaft. Compared to VR sensors, these active sensors are smaller, detect lower speeds and can be used for zero-speed position sensing. They are also immune to angular vibrations.
Electricfil solution - ready technologies
Characteristics
- Temperatures -40°C to +160°C
- Zero-speed sensing
- High withstand capacity to severe environments
Low signal-processing requirements - Large airgaps up to 6 mm for a ring magnet or 3 mm for a metal target
- Typical accuracy: +/- 0.1°
- Small size
- Interface: 2-wire or 3-wire
- Vibration immunity: +/- 1.5°
- Wobble up to 1 mm
Electricfil knowhow
- Design of sensors and complete detection function
- Wide range of packages and interfaces
- Wide range of ASICs available
Par domaine
Par application
- LVDT
- Hall position sensor
- Eddy-current position sensor
- Hall position switch
- VR speed/position sensor
- Active Hall-GMR sensor
- Oil temperature
- Multi-sensor modules
- Ignition wire set
- Integrated ignition units
- Integrated ignit.coil & wire set
- Pencil coils
- Eddy-current speed sensor
- Smart battery sensor
- Hall current sensor
- Temperature sensor
- Active speed/position sensor
- Active speed/pos./direction
- Magnetic ring system
- Magnetic ring module
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