Dust concentration detection method based on multi-angle light scattering
A technology of dust concentration detection and multi-angle light scattering, which is used in measurement devices, suspension and porous material analysis, scientific instruments, etc. It can solve problems such as differences in detection units and algorithms, and achieve the effect of reducing relative errors.
Active Publication Date: 2021-09-17
CHINA COAL TECH ENG GRP CHONGQING RES INST
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since the concentration of coal mine dust reaches the mg level, which is at least 1000 times that of the atmospheric environment, there is still a lack of research on multi-angle light scattering for underground coal mine dust, and there are differences in the relevant detection units and algorithms.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0030] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a dust concentration detection method based on multi-angle light scattering, which belongs to the technical field of dust detection. The method comprises the following steps of S1, placing a multi-angle light scattering detection unit in a dust concentration detection environment to obtain AD values output by two angle photoelectric sensors, S2, measuring a standard dust concentration value by adopting a filter membrane mass concentration method, S3, respectively establishing a curve m(x) and a curve n(x) according to the standard dust concentration value and the two AD values, S4, dividing m(x) and n(x) into i interpolation functions mi(x) and ni(x) according to a spline interpolation principle, and then calculating an AD fusion value gi(x) by using a multi-angle light scattering fusion algorithm, S5, establishing a dust concentration detection regression equation G(x), S6, substituting the gi(x) into the G(x), and calculating the dust concentration value detected by the angle light scattering unit. The relative error of dust concentration detection is reduced.
Description
technical field [0001] The invention belongs to the technical field of dust detection, and relates to a dust concentration detection method based on multi-angle light scattering. Background technique [0002] The dust generated by underground coal mine production not only increases the risk of occupational diseases for operators, but also reduces the visibility of the production environment and increases the risk of dust explosion, so that the physical and mental health of operators and the safety of the working environment cannot be guaranteed. Therefore, online continuous detection of dust concentration is a prerequisite for preventing dust occupational hazards and ensuring safe production. At present, the most widely used online detection method of dust concentration is the light scattering method. The popularization of dust concentration detection technology based on this method has proved the feasibility of light scattering method for online detection of coal mine dust...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 赵政吴付祥李德文刘国庆王宇廷胥奎石婧李征真罗小博焦敏吕二忠惠立锋张强晏丹邓勤
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST