Resolution Increase in the Rotational Speed Signal between Rotational Speed Pulses

Resolution Increase in the Rotational Speed Signal between Rotational Speed Pulses

A method for producing sensor information depends on a rotational speed, using a rotational speed sensor which is adapted to output rotational speed pulses in predetermined angular positions of a physical sensor field that rotates at the rotational speed. In order to increase resolution, a digital a...

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Hauptverfasser: Dietz Timo, Jöckel Wolfgang, Hilser Roland, Schmid Bernhard
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Sprache:eng
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INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
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creator Dietz Timo
Jöckel Wolfgang
Hilser Roland
Schmid Bernhard
description A method for producing sensor information depends on a rotational speed, using a rotational speed sensor which is adapted to output rotational speed pulses in predetermined angular positions of a physical sensor field that rotates at the rotational speed. In order to increase resolution, a digital angle signal each is determined between the pulses. A defined number of most significant bits of said angle information is output to determine the rotational speed so that the interval between two pulses is subdivided into a defined number of subintervals. An angle value which can be unambiguously interpreted by means of the sinusoidal signal can be determined from the cosine signal by using two phase shift sinusoidal signals and an arccos function. The device optionally outputs the angle signal below a threshold value and an impulse signal above the threshold value to determine speed.
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subjects INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PHYSICS
TESTING
title Resolution Increase in the Rotational Speed Signal between Rotational Speed Pulses
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