Patent
Method for detecting disturbances when determining the rotational speed of a rotor and evaluation circuit
TLDR
In this paper, the phase difference between a rotational speed signal and a direction of rotation signal is detected by means of a phase difference measure, i.e., the difference between the phase of the signal and the direction of the rotation of the rotor.Abstract:
The invention relates to a rotary encoder and to a method for detecting disturbances in such a rotary encoder. In this case, vibrations or other disturbances are detected by means of the phase difference between a rotational speed signal, which represents a rotational speed of a rotor, and a direction of rotation signal, which represents a direction of rotation of the rotor.read more
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Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object
TL;DR: In this article, an apparatus and a method provide an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object capable of rotating, and a variety of signal formats of the output signal are described.
PatentDOI
Methods and apparatus for vibration detection
TL;DR: In this article, a method for detecting vibration of an object adapted to rotate includes one or more vibration processors selected from: a direction change processor adapted to detect changes in a direction of rotation of the object, a direction-agreement processor, a phase-overlap processor, and a running mode processor that detects an unresponsive output signal from at least one of the at least two channels.
Patent
Sensor module with mold encapsulation for applying a bias magnetic field
Horst Theuss,Helmut Wietschorke +1 more
TL;DR: In this article, a method of manufacturing a sensor module includes providing a substrate comprising a magnetically sensitive sensor element, which is encapsulated with at least one mold material that is configured to apply a bias magnetic field to the sensor element.
Patent
Magnetic field sensors and related techniques that can provide self-test information in a formatted output signal
TL;DR: A magnetic field sensor can provide an output signal indicative of a passing condition or a failing condition of the magnetic field sensors as mentioned in this paper, which can be one of a variety of output signal formats.
Patent
Method of biasing a magneto resistive sensor element
Tobias Werth,Juergen Zimmer +1 more
TL;DR: In this paper, a method of biasing a magneto resistive sensor element is proposed, where a magnet is positioned adjacent to the at least one sensor element for biasing.
References
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Patent
Method for identifying the direction of rotation of a wheel using hall probes
TL;DR: In this article, a method of identifying a direction of rotation of a wheel using Hall probes which are disposed about the circumference of the wheel is presented, where a first, a second and a third Hall probe are disposed successively, so that the second Hall probe lies between the first and third Hall probes.
Patent
Method for identifying direction of rotation of wheel using Hall effect probes
TL;DR: In this article, the authors used Hall effect probes arranged in the peripheral direction of the wheel to measure the direction of rotation of the rotation of a wheel, and two evaluation signals were derived from the three output signals, the first (A) by subtracting output signal (S3) from (S1) and the second (B) by adding (S 1,S 2,S 3) from the sum of which double the value of (S 2) is subtracted.
Patent
Method and assembly for determining rotational speed with variable switching hysteresis
TL;DR: In this paper, a method for detecting the motion, especially speed, of an element relative to a sensor assembly, during which switching signals (1) are evaluated according to a pulse generator that is moved past the sensor, and a switching hysteresis (H) is adapted during the evaluation according to the values of the switching signal (1).
Patent
Method and device for the detection of the movement of an element
TL;DR: In this article, a method for detection of the movement of an element in relation to a sensor arrangement is proposed, where signals (7-15) are evaluated according to a pulse transmitter passing in front of a sensor (3,4,5).