Dust concentration image collecting device and collecting method

Abstract

The invention discloses an image collecting device and collecting method capable of collecting incident light, scattered light and transmission light information about dust concentration. The image collecting device comprises a light emitter, a light splitter and a light collector, wherein the light splitter splits probe light emitted from the light emitter into transmission light and reflected light, the light collector collects the reflected light and the transmission light penetrating through dust and comprises an optical fiber branch circuit, an optical fiber main circuit, an optical fiber coupler, a collection lens and a CCD camera, the optical fiber branch circuit is arranged at an exit port of the reflected light, the optical fiber main circuit is arranged at an exit port of the transmission light, light outlets of the optical fiber branch circuit and the optical fiber main circuit are connected to an inlet of the optical fiber coupler, and the collecting lens and the CCD camera are connected to an outlet of the optical fiber coupler sequentially. According to the device, the design complexity of the incident light, scattered light and transmission light collecting device is simplified, besides, the measurement accuracy of the incident light, scattered light and transmission light information is improved, and measurement signals can be collected in real time on line.

Description

technical field [0001] The invention relates to a dust concentration image collection device and a collection method, belonging to the technical field of dust concentration measurement. Background technique [0002] The optical method has the advantages of high sensitivity, high precision, good repeatability, no disturbance, and real-time online measurement. It is unique among many dust concentration measurement methods, especially the light scattering method and light transmission method, which meet the requirements of real-time online measurement. Therefore, It is more and more widely used in actual measurement. figure 1 For the existing optical collection system, photodetectors are used to collect forward scattered or transmitted light signals, and the photodetectors are distributed around the measurement area. The voltage value of each photodetector is converted into a digital signal through a data conversion module. The specific principle is as follows: the laser 1 em...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to propose a collection device that can not only collect incident light information, but also capture scattered light and transmitted light information in view of the deficiencies and defects of the optical information collection device in the existing dust concentration measurement system. method to improve the accuracy of the online dust concentration measurement system based on the optical method

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