激光粒度測(cè)試結(jié)果影響因素分析
[Abstract]:In view of the fact that there are many brands and models of laser granulometer in the market at present, but the results of laser particle size measurement are quite different, the standard sample of spherical quartz powder developed by Tsinghua University is taken as the test sample, and the laser particle size meter from different manufacturers is used. The laser scattering method was used to compare the results of laser particle size measurement under different complex refractive index. It is found that the results of laser granulometer for the same sample are quite different from each other. Refractive index and absorptivity have great influence on particle size detection results, and the influence of refractive index is greater than that of absorptivity, but with the increase of absorptivity, the fluctuation of particle size detection result caused by the change of refractive index can be gradually counteracted. The test results tend to be stable. It is found that the smaller the residual value is, the smaller the deviation between the theoretical scattering light intensity and the actual measured light intensity is, and the more stable the detection result is, by searching for the variation law between the fitting residuals and the particle size detection results. However, it is found that there is no reliable basis for judging the refractive index of the sample according to the residual value of laser particle size testing users. By comparing the minimum residual values of different samples, it is found that the refractive index and absorptivity of the same sample are different in different particle size ranges. It is proved that the method of particle size measurement based on the fixed refractive index and absorptivity of each substance in the particle size detection industry is lack of practical basis.
【作者單位】: 太原理工大學(xué)礦業(yè)工程學(xué)院;北京海林節(jié)能科技股份有限公司;清華大學(xué)材料學(xué)院;淄博清大粉體材料工程有限公司;
【基金】:全國標(biāo)準(zhǔn)樣品技術(shù)委員會(huì)標(biāo)準(zhǔn)樣品研制項(xiàng)目(S2014125)
【分類號(hào)】:TB302
【相似文獻(xiàn)】
相關(guān)期刊論文 前6條
1 譚立新;余志明;蔡一湘;;激光粒度法測(cè)試結(jié)果與庫爾特法、沉降法的比較[J];中國粉體技術(shù);2009年03期
2 劉強(qiáng);張娟;王紹文;田原;張虎;侯業(yè)茂;鄭坤;;淺談干濕激光粒度法對(duì)系統(tǒng)粉粒度影響[J];糧食加工;2013年05期
3 李龍;朱海濤;廉園園;王軍;馬志武;;圖像粒度法和激光粒度法在長(zhǎng)6油層中粒度檢測(cè)方法適用性研究[J];遼寧化工;2014年07期
4 魯應(yīng)華;;激光粒度法測(cè)定煤粉粒度分布[J];大氮肥;2012年05期
5 張霜玉;呂馥言;夏正猛;郝雪弟;吳淼;;激光粒度法與篩分法測(cè)量洗煤泥粒度分布對(duì)比[J];中國粉體技術(shù);2014年02期
6 ;[J];;年期
相關(guān)會(huì)議論文 前3條
1 汪瑞俊;宋正啟;;兩種激光粒度分布儀分辨率的對(duì)比分析[A];第十五屆中國科協(xié)年會(huì)第16分會(huì)場(chǎng):現(xiàn)代顆粒測(cè)試技術(shù)的發(fā)展及應(yīng)用研討會(huì)論文集[C];2013年
2 簡(jiǎn)淼夫;王清華;;激光粒度測(cè)試的非理想聚焦問題研究[A];第六屆全國顆粒測(cè)試學(xué)術(shù)會(huì)議論文集[C];2005年
3 李彩榮;劉纏牢;;基于CCD傳感的激光粒度測(cè)試技術(shù)研究[A];2011西部光子學(xué)學(xué)術(shù)會(huì)議論文摘要集[C];2011年
相關(guān)碩士學(xué)位論文 前5條
1 沈少偉;基于散射原理的激光粒度測(cè)試儀研究[D];國防科學(xué)技術(shù)大學(xué);2008年
2 孫興文;基于USB總線的激光粒度數(shù)據(jù)采集處理系統(tǒng)的研制[D];天津大學(xué);2005年
3 劉翠翠;基于組合頻譜的激光粒度測(cè)試優(yōu)化技術(shù)研究[D];河北工業(yè)大學(xué);2014年
4 徐樂樂;USB總線在激光粒度測(cè)試儀中的應(yīng)用研究[D];天津大學(xué);2006年
5 張志勇;基于PCI總線的激光粒度測(cè)量系統(tǒng)的研究[D];天津大學(xué);2004年
,本文編號(hào):2273187
本文鏈接:http://sikaile.net/kejilunwen/cailiaohuaxuelunwen/2273187.html