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A Calculation Method of Angular Displacement Based on Hall Effect

A Hall effect and angular displacement technology, applied in the field of optoelectronic pods, to achieve the effect of short calculation time, small calculation amount and wide application range

Active Publication Date: 2020-09-08
TIANJIN JINHANG INST OF TECH PHYSICS
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  • Abstract
  • Description
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: how to calculate the angle value of the pod frame within the range of -180° to 180° for the voltage induced by two linear Hall sensors in a small angle measuring device based on linear Hall sensors, and make the angle values ​​as noise as possible

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  • A Calculation Method of Angular Displacement Based on Hall Effect
  • A Calculation Method of Angular Displacement Based on Hall Effect
  • A Calculation Method of Angular Displacement Based on Hall Effect

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Embodiment Construction

[0038] 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.

[0039] The invention provides a method for calculating angular displacement based on the Hall effect, comprising the following steps:

[0040] The first step, according to figure 1 The structure shown assembles a small angle measurement device based on linear Hall sensors for measuring the angular displacement of the frame. In this device, two linear Hall sensors are used, namely the first Hall sensor and the second Hall sensor, Orthogonally installed on the motor drive circuit board, the end face of the motor output shaft is pasted with a circular magnet. When the magnet rotates with the motor, the two Hall sensors output a voltage signal with a phase difference of 90° through magnetic induction, and the motor and th...

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Abstract

The invention relates to an angular displacement solution method based on a hall effect, and belongs to the technical field of photoelectric pods. According to the angular displacement solution methodbased on the hall effect, based on the hall effect, the angular displacement solution method is designed, and the method is applied in engineering and proved to be capable of effectively solving theproblem of angle solution of an angle measuring device based on a linear hall sensor by testing; a data source comes from hall sensor sampling inside the angle measuring device, the calculation amountis small and the calculation time is short ( system clock is 80 MHz, and the calculation time is less than 100 us), and the real-time requirements are met; and the angular displacement solution method has wide application range, and can be widely applied in similar linear hall sensor-based angle measuring devices.

Description

technical field [0001] The invention belongs to the technical field of photoelectric pods, and in particular relates to a method for calculating angular displacement based on the Hall effect. Background technique [0002] The carrying capacity of small unmanned aerial vehicles is limited, so the miniaturization requirements for the photoelectric pod as its important mission equipment are also put forward. In a small (less than 1.5Kg) four-frame photoelectric pod, the limited space is used to carry photoelectric detection equipment, and the outer frame of the pod needs to make a wide range of angular motion. The use of a single angle sensor is generally large in size. In small pods The application is difficult, so a small angle measurement device based on linear Hall sensor is designed to measure the angular displacement of the frame. The schematic diagram of the device is shown in figure 1 . The device uses two linear Hall sensors to be installed orthogonally on the motor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/30
CPCG01B7/30
Inventor 段东建宋万禄孙拓
Owner TIANJIN JINHANG INST OF TECH PHYSICS
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