Active speed/position sensor and direction sensor
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 use to determine the speed and at the same
time the direction of rotation of the shaft.
This is particularly useful for the Stop & Start function,
making it possible to detect the direction of rotation and
exact stop position of the crankshaft for quicker restart
and lower starting load.
Electricfil solution - ready technologies
Characteristics
- Temperatures -40°C to +160°C
- Zero-speed sensing (e.g. crankshaft),
TPO function (e.g. camshaft) - High withstand capacity to severe environments
- Low signal-processing requirements
- Large airgaps up to 2 mm
- Accuracy: +/-0.5°
- Jitter +/-0.02°
- No tooth lost at direction change
- Interface: 3-wire, PWM output
Electricfil knowhow
- 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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- En Europe
- En Amérique
- En Asie et Océanie