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Hall element angle measuring and calculating compensation method based on high-order polynomial

A high-order polynomial and Hall element technology, applied in electrical components, electric components, electromechanical devices, etc., can solve problems such as low accuracy of Hall element welding positions, large magnet installation errors, and uneven distribution of magnet magnetic fields, etc., to achieve The effect of meeting real-time requirements, small amount of calculation, and short calculation time

Active Publication Date: 2019-02-19
TIANJIN JINHANG INST OF TECH PHYSICS
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: how to design a method for constructing and compensating an angle-solving model based on Hall elements, so as to solve the problem that in practical applications, the real-time angle measurement technology based on Hall elements has a large installation error of the magnet, and the magnet Non-uniform distribution of magnetic field, low accuracy of Hall element welding position, etc.

Method used

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  • Hall element angle measuring and calculating compensation method based on high-order polynomial
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  • Hall element angle measuring and calculating compensation method based on high-order polynomial

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Embodiment Construction

[0036] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] The present invention provides a high-order polynomial-based Hall element angle measurement and angle compensation method, comprising the following steps:

[0038] 1. Data collection

[0039] The motor stator is installed on the horizontal one-dimensional turntable through the structural tooling, the Hall element on the angle measuring circuit is fixedly connected to the turntable table, and the turntable base is locked and fixed by the cantilever structural tooling. At this time, the motor stator and the rotor The relative rotation angle is the same as the reading of the turntable, turn the turntable table clockwise until it reaches the mechanical limit, and record the current turntable angle value. Then start...

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Abstract

The invention relates to a hall element angle measuring and calculating compensation method based on a high-order polynomial, and belongs to the technical field of high-integration and high-accuracy miniature servo systems. The method is applied to engineering, tests show that the method can effectively solve the problem of angle calculating of an angle measuring device based on a hall sensor, data sources are sampled by the hall sensor in the angle measuring device, calculated amount is less, calculated time is short, real-time requirements are met, and a calculating method is wide in application range and can be universally applied to similar angle measuring devices based on linear hall sensors.

Description

technical field [0001] The invention belongs to the technical field of high-integration and high-precision small servo systems, and in particular relates to a high-order polynomial-based Hall element angle measurement and angle compensation method. Background technique [0002] The development trend of lightweight and miniaturization of drones has made the structure, size and weight of photoelectric pods, which are important mission equipment, pay more and more attention to the requirements of miniaturization. If a separate angle sensor is used as the feedback element of the position and tracking loop in the small photoelectric pod, the volume and weight are generally large, and it is difficult to apply it in the small pod. Therefore, a small measuring sensor based on the Hall sensor is designed. Angle device, used to measure the angular displacement of the frame, see the schematic diagram of the device figure 1 . [0003] The device is installed on the motor drive circuit...

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Application Information

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IPC IPC(8): H02K11/20H02K11/215
CPCH02K11/20H02K11/215
Inventor 孙拓段东建林秋月唐帅
Owner TIANJIN JINHANG INST OF TECH PHYSICS
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