基于环形样品池的激光粒度测量方法

发布时间：2018-03-11 14:39

本文选题：散射　切入点：环形样品池　出处：《光学学报》2017年10期 　论文类型：期刊论文

【摘要】：为了扩展散射角的接收范围,提高激光粒度仪对亚微米颗粒的测量精度和分辨率,提出了一种结构简单的环形样品池方法。该方法理论上能够连续无缝地接收0°~180°的散射光,且具有测量下限低的优势。基于环形样品池测量方法,搭建了新型激光粒度测量装置,并对50,100,200,400nm的标准粒子样品以及由它们组合而成的混合样品进行了测量实验,并与传统样品池的测量结果进行了比较。结果表明,环形样品池方法能够准确分辨体积中位径比值为1∶2的标准粒子混合样品。对于亚微米颗粒,环形样品池方法具有测量下限低、测量精度高、分辨率高和可靠性高的特点。
[Abstract]:In order to extend the receiving range of scattering angle and improve the measurement accuracy and resolution of submicron particles by laser particle size meter, a simple ring sample cell method is proposed. The method can receive continuously and seamlessly the scattering light of 0 掳or 180 掳. Based on the measurement method of annular sample cell, a new laser particle size measuring device was built, and the measurement experiments were carried out on the standard particle samples of 50 ~ 100 ~ 200 ~ 200 ~ 400nm and the mixed samples composed of them. The results show that the annular sample cell method can accurately distinguish the standard particle mixture samples with a volume median diameter ratio of 1: 2. For submicron particles, The annular sample cell method has the characteristics of low measuring limit, high precision, high resolution and high reliability.
【作者单位】：天津大学精密仪器与光电子工程学院;光电信息技术教育部重点实验室;珠海真理光学仪器有限公司;
【基金】：国家自然科学基金(61275012)
【分类号】：TH744.5

【相似文献】