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Method and system for detecting polarity of magnet, equipment and storage medium

A polarity detection and magnet technology, applied in the field of laser projection, can solve problems such as errors, and achieve accurate detection, fast and convenient detection methods

Active Publication Date: 2019-01-04
GOERTEK OPTICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the polarity of the magnet is reversed, the projection of the scanning galvanometer will be wrong. However, there is currently no effective and fast way to detect whether the polarity of the magnet is reversed.

Method used

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  • Method and system for detecting polarity of magnet, equipment and storage medium
  • Method and system for detecting polarity of magnet, equipment and storage medium
  • Method and system for detecting polarity of magnet, equipment and storage medium

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Embodiment Construction

[0043] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0044]In view of the fact that there is no detection method for detecting whether the polarity of the magnet is reversed in the prior art, the embodiment of the present application provides a detection method for the polarity of the magnet. The direction is related to the direction of the polarity of the magnet. Before the actuator is packaged, when t...

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PUM

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Abstract

An embodiment of the invention provides a method and system for detecting the polarity of a magnet, equipment and a storage medium. When a voltage is not applied to a coil surrounding the scanning galvanometer, a laser is emitted to the scanning galvanometer, and a first screen image when the scanning galvanometer reflects the laser to an imaging screen is acquired. When the voltage is applied tothe coil, the laser is emitted to the scanning galvanometer, and a second screen image when the scanning galvanometer reflects the laser light to the imaging screen is acquired. The installation stateof a magnet polarity of a magnetic field environment is provided to the coil according to the projection position of the laser in the first screen image and the projection position of the laser in the second screen. The method for detecting the polarity of the magnet in the embodiment of the invention is quick and convenient, and whether the magnetic is installed in reverse can be accurately detected.

Description

technical field [0001] The present application relates to the technical field of laser projection, and in particular to a magnet polarity detection method, device, system and storage medium. Background technique [0002] The internal actuator of laser projection includes a coil, MEMS vibrating mirror (scanning vibrating mirror), magnet and other components. The coil and MEMS vibrating mirror are fixed on the bracket, and a magnetic field environment is formed between the two poles of the magnet. The coil and MEMS vibrating mirror on the bracket are suspended In a magnetic field environment, after the coil is energized, it will drive the scanning galvanometer to rotate to a certain angle, and then start to project. [0003] If the polarity of the magnet is reversed, the projection of the scanning galvanometer will be wrong. However, there is currently no effective and fast method for detecting whether the polarity of the magnet is reversed. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): G01R33/12G01R33/02
CPCG01R33/02G01R33/1253
Inventor 赵团伟郝瑞娜
Owner GOERTEK OPTICAL TECH CO LTD
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