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We present a technique for contactless angular position sensing that allows low power consumption while keeping dynamic properties comparable to existing sensors. The technique essentially consists in combining a recently developed sensing element, the so-called Circular Vertical Hall Device, with a simple and robust signal treatment based on phase detection. Because of its low startup time, this...
The paper presents various methods of angle measurement as well as the miniature Hall effect angle measuring sensor and a special test stand for it. Similar sensors are going to be used to measure the angle of rotation of the mobile parts of the artificial human hand-shape manipulator that is just being designed in the Bialystok Technical University.
This paper presents a new technique to sense the direction of the magnetic field, enabling a new generation of contactless 360deg absolute angle encoders. The sensor consists of a microchip that contains a special ring-shaped Hall element. It is the first sensor that gives the angle value without the need of computing an arctan function. In addition, we demonstrate that this system is compatible with...
Speed and position measurements of rotating shafts are very important in the field of mechanical engineering. In automotive applications, magnetic field sensors for such measurements (camshaft, crankshaft, anti-lock braking system, windshield wiper, etc.) have the largest market share of all sensor types. Camshaft applications are challenging due to their requirements on high angular accuracy under...
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