微粉粒度检测系统的设计  

Design of Detecting System for Powder Particle Size

作　　者：李银华[1] 齐健翔[1] 

机构地区：[1]郑州轻工业学院电气信息工程学院,河南郑州450002

出　　处：《仪表技术与传感器》2011年第8期98-100,共3页Instrument Technique and Sensor

摘　　要：传统的沉降式微粉粒度检测仪器易受人为因素和环境因素的干扰,导致测量结果失真。为了提高测量结果的准确性和可重复性,在样品颗粒的沉降过程中,利用光强传感器和温度传感器测量出不同时刻的沉积高度和环境温度,通过对采集的高度、温度等数据进行动态分析,最终得出被测样品的粒度分布。系统实现了微分粒度的自动化检测,为后续的生产加工提供了有力保障。The original instrument of powder particle size measurement based on sedimentation method is easy to be disturbed by human and environmental factors,leading to the measurement result in a lack of accuracy.In order to improve the accuracy and reproducibility of the result,in the process of sample particles＇settlement,the design measured the deposition height and environmental temperature at different times by the use of light intensity sensor and temperature sensor,and got the distribution of sample particle size by analyzing the gathered data of height and temperature dynamically.This system achieves automatic detection of the powder particle size,and provides strong assurance for the follow-up production and processing.

关 键 词：沉降法 斯托克斯定律 传感器技术 光电检测 信息融合 比尔-朗伯特定律 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]