Magnetic Encoder
A sensor that measures angle or displacement using changes in a magnetic field. It consists of a permanent magnet and a magnetically sensitive element such as a Hall or magnetoresistive sensor. It has no mechanical contact, offers a long service life, resists interference from dust, oil and light, and can output absolute angles without zero-position calibration.
Timeline (last 90 days)
TAKTO ONE is an open-source hand exoskeleton that equips each of the 12 finger joints with an independent magnetic encoder and carries two IMUs, driving the virtual hand in a headset through sensor fusion rather than relying on camera tracking.
In TAKTO ONE, the two IMUs handle the overall orientation of the palm and the back of the hand, and the 12 magnetic encoders handle the finger joint angles; fusing the two and combining with the encoders' absolute angle data can suppress the effect of IMU drift.
The working principle of a magnetic encoder is to mount a permanent magnet on a rotating shaft, paired with a Hall-effect sensor chip fixed on a circuit board that detects changes in magnetic field direction to calculate the shaft's angle
The most important improvement in the new version of Exocontrol is the adoption of magnetic encoders and bearings
In teleoperation scenarios, the response latency of magnetic encoders is typically at the microsecond level, far below the millisecond-level response time of human body movements.
A typical 12-bit magnetic encoder can provide 4096 resolution steps, corresponding to an angular resolution of approximately 0.088°
Compared to traditional potentiometers or optical encoders, magnetic encoders offer advantages including non-contact measurement, resistance to dust and oil contamination, long service life, and high resolution
All Facts (7)
TAKTO ONE is an open-source hand exoskeleton that equips each of the 12 finger joints with an independent magnetic encoder and carries two IMUs, driving the virtual hand in a headset through sensor fusion rather than relying on camera tracking.
50%UnverifiedIn TAKTO ONE, the two IMUs handle the overall orientation of the palm and the back of the hand, and the 12 magnetic encoders handle the finger joint angles; fusing the two and combining with the encoders' absolute angle data can suppress the effect of IMU drift.
50%UnverifiedThe working principle of a magnetic encoder is to mount a permanent magnet on a rotating shaft, paired with a Hall-effect sensor chip fixed on a circuit board that detects changes in magnetic field direction to calculate the shaft's angle
50%UnverifiedThe most important improvement in the new version of Exocontrol is the adoption of magnetic encoders and bearings
50%UnverifiedIn teleoperation scenarios, the response latency of magnetic encoders is typically at the microsecond level, far below the millisecond-level response time of human body movements.
50%UnverifiedA typical 12-bit magnetic encoder can provide 4096 resolution steps, corresponding to an angular resolution of approximately 0.088°
50%UnverifiedCompared to traditional potentiometers or optical encoders, magnetic encoders offer advantages including non-contact measurement, resistance to dust and oil contamination, long service life, and high resolution
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