近年来，计算机技术和计算算法的进步使得该理论在激光粒度测试仪中的应用和实现成为可能。
With the development of computer technology and calculation algorithm theory in recent years, this theory is used in particle sizing.
本文主要介绍粒径测试技术方法及其新进展，包括传统的直接测量法、筛析法、沉降法和以计算机为依托的激光粒度测试仪法；
The authors introduced the methods and advance of grain size analysis technique, including direct measurement, sieving analysis, setting method and the laser grain-size analyzer;
本论文的主要工作：1。在充分了解CY7C68013等元器件的知识基础上，设计基于USB总线的激光粒度测试仪数据采集硬件系统。
The main work includes: 1. Designing the data acquisition hardware system of Laser Particle Sizer based on USB bus after knowing well such components as CY7C68013. 2.
激光散射法粒度测试仪在固定波长下，通过探测粒子场在前向某个小角度范围内的相对散射光能而得到粒子的尺寸分布信息。
The Laser particle Sizer may obtain the information of particle size and distribution by detecting the relative energy scattered by the particles, with the fixed wavelength.
激光散射法粒度测试仪在固定波长下，通过探测粒子场在前向某个小角度范围内的相对散射光能而得到粒子的尺寸分布信息。
The Laser particle Sizer may obtain the information of particle size and distribution by detecting the relative energy scattered by the particles, with the fixed wavelength.
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