A photoelectric angle sensing device and method for measuring multi-turn angles using the same

Abstract

The invention relates to the technical field of angle measurement, and provides a photoelectric angle sensing device, and a method for measuring multiple turn angles by using the photoelectric angle sensing device. The method comprises the following steps of: step 1, separately acquiring output angle information of a photoelectric angle sensor A and a photoelectric angle sensor B to obtain an angle difference value of the photoelectric angle sensor A and the photoelectric angle sensor B; step 2, determining the number of turns of the photoelectric angle sensor A by using the angle difference value between the photoelectric angle sensor A and the photoelectric angle sensor B obtained in the step 1; step 3, obtaining multiple turn angle values of the photoelectric angle sensor A according tothe number of turns of the photoelectric angle sensor A determined in the step 2; and step 4, obtaining multiple turn angle values of an input shaft. According to method for measuring the multiple turn angles by using the photoelectric angle sensing device, the function of rapidly outputting the multiple turn angles after power-on can be realized; externally recorded angle and the number of turnsare not needed; and the measurement precision is high.

Description

technical field [0001] The invention relates to the technical field of angle measurement, in particular to a photoelectric angle sensing device and a method for measuring multi-turn angles using the same. Background technique [0002] The angle sensor is a sensor that perceives the rotation angle of the rotating shaft. It can convert the linear displacement or angular displacement of the machine into a sensor element that has a certain functional relationship with it, and outputs a resistance or voltage. It can be used for the measurement of physical quantities such as linear displacement and angular displacement. . [0003] The traditional method of measuring the multi-turn angle is to use an angle encoder to measure the single-turn angle, and use an external recording module or a potentiometer or other sensor with the function of counting the circle to record the number of turns, so as to realize the measurement of the multi-turn angle. The existing defects are: the numbe...

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Problems solved by technology

[0004] The present invention mainly solves the technical problems such as the limited number of measurement circles and the low accuracy of measuring multi-turn angles in the existing multi-turn angle measurement technology, and proposes a photoelectric angle sensing device and a method for using it to measure multi-turn angles, which can be realized in the above The function of quickly outputting multi-turn angles after power-on does not require external recording of angle and number of turns information, high measurement accuracy, and no mechanical limit

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