Patent
Linear output non-contacting angular position sensor
TLDR
In this paper, a rotatable arc segment magnet is arranged to rotate about the stationary components of the sensor, which include a pair of stationary flux concentrators, separated by a Hall probe.Abstract:
A linear output and non-contacting angular position sensor has a rotatable arc segment magnet arranged to rotate about the stationary components of the sensor, which include a pair of stationary flux concentrators, separated by a Hall probe; or, the magnet may be arranged to rotate at the center of the sensor with the stationary components fixed outside the magnet. With either arrangement, the Hall probe produces a direct 0 to 5 V d.c. output which varies linearly with the rotational angle of the magnet as the magnet rotates through a predetermined angle. The predetermined angle of rotation is generally equal to the arc formed by the flux concentrators and the arc of the magnet is generally 20-40% greater than the arc of the flux concentrators.read more
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Patent
Rotation angle detecting device
TL;DR: In this paper, an improved rotation angle detecting device that detects a rotation angle of a first member relative to a second member is proposed, which includes a magnet unit fixed to the first member and a pair of magnetic sensors fixed on the second member to provide output signals whose phase is different from each other at different angles.
Patent
Capacitive angular position sensor
TL;DR: In this article, a rotatable body is estimated by measuring the voltage induced by four receiver electrodes forming two receiver pairs and comparing the values of the voltage pairs to known values from calibration, giving the angular position.
Patent
Linear or rotary position sensor with a permanent magnet for detecting a ferromagnetic target
TL;DR: In this paper, the authors proposed a contactless magnetic sensor for measuring the angular or linear movement of a ferromagnetic target, which is capable of detecting a piece of position information as soon as the sensor is powered without degrading the performance.
Patent
Throttle-opening detecting apparatus
TL;DR: In this article, a case mounted on a handle bar of a vehicle, a throttle grip mounted on the leading end side of the handle bar from the case, a detect member incorporated in the case and linked with the throttle grip, and a throttle-opening sensor for detecting the rotation angle of the detect member.
Patent
Magnetic linear position sensor
TL;DR: A magnetic linear position sensor as mentioned in this paper consists of a first yoke which is made of soft magnetic material; a first magnet which is placed at the yoke, and whose surface is the N-pole and is inclined; a second magnet that is placed in a position opposite to the surface of the first magnet and in a direction facing the surface, and a magnetoelectric transducer placed in the air gap.
References
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Patent
Measuring device for contactless determination of relative angular position with an improved linear range
TL;DR: In this paper, a stator with slot-like stator air gaps was used to measure a rotational angle of greater than ±75° with a linear response measurement curve, where the null point of the magnetic induction B was shifted to the beginning of the linear range of the mechanical measuring range.