沈阳工业大学学报2013，Vol.35Issue(4)：445-450,6.DOI:10.7688/j.issn.1000-1646.2013.04.15
基于相对湿度的棉花回潮率在线检测
Online detection of cotton moisture regain based on relative humidity
摘要
Abstract
In order to solve the online detection of moisture regain in the processing course of cotton,an online detection method for cotton moisture regain based on relative humidity was proposed.The hardware was designed with adopting an HIH3610 humidity sensor as well as a DS2438 temperature and voltage detector.Then the air temperature and relative humidity in the louver of sampling probe were obtained.The relational model for the temperature,relative humidity and cotton moisture regain was established with the BP neural network.The results show that with increasing the relative humidity,the equilibrium cotton moisture regain obviously increases.With increasing the temperature,the equilibium moisture regain gradually decreases.And the time to reach the moisture balance is about 10 s.In addition,the defective percent of a cotton bale due to the sampling delay is 4.65 ％,and the maximum absolute error of moisture regain for BP model is less than 0.2％.The obtained conclusions show that the online detection method for cotton moisture regain based on relative humidity can meet the requirements in the control accuracy and real time performances for the cotton processing industry.关键词
回潮率/相对湿度/温度/BP神经网络/棉花/在线检测/HIH3610湿度传感器/DS2438温度电压检测器Key words
moisture regain/relative humidity/temperature/BP neural network/cotton/online detection/HIH3610 humidity sensor/DS2438 temperature and voltage detector分类
信息技术与安全科学引用本文复制引用
张成梁,冯显英,杨丙生,李蕾..基于相对湿度的棉花回潮率在线检测[J].沈阳工业大学学报,2013,35(4):445-450,6.基金项目
国家自然科学基金资助项目(50875153) （50875153）
第三批"泉城学者"建设工程项目(20110306). （20110306）
