摘要
针对传统灼烧法测量纸张灰分存在耗时长、步骤繁琐、人为误差大等问题,该文基于STM32研究纸张灰分测量。首先,以X射线管为放射源,电离室为探测器,对纸张样本进行测量;之后,针对温度影响灰分测量进行详细研究,通过温度传感器实时监测测量过程中的气隙温度变化,建立了X射线管及其测量域的热仿真模型,提出了温度补偿公式;最后,结合实时温度数据对灰分进行优化补偿,验证补偿效果。实验结果显示,经过温度补偿后X射线法测得的纸张灰分误差更低,均小于1%,测量的可靠性和准确性显著提高。
Aiming at the traditional burning method to measure the ash content of paper,there are long time-consuming,cumbersome steps,human error problems,this paper is based on STM32 to study the measurement of paper ash content.First of all,the X-ray tube as a radioactive source,the ionisation chamber as a detector,the paper samples are measured.After that,a detailed study of the impact of temperature on the measurement of ash,real-time monitoring of the temperature change of the air gap in the measurement process through the temperature sensor,the establishment of the X-ray tube and its measurement domain of the thermal simulation model,proposed the temperature compensation formula.Finally,combined with the real-time temperature data on the ash to optimise the compensation,to validate the compensation effect.The experimental results show that after the temperature compensation,the error of paper ash measured by X-ray method is lower than 1%,and the reliability and accuracy of the measurement are significantly improved.
作者
胡连华
陈文博
HU Lianhua;CHEN Wenbo(School of Electromechanical Engineering,Shaanxi University of Science and Technology,Xi'an 710021,China)
出处
《自动化与仪表》
2025年第4期72-76,81,共6页
Automation & Instrumentation
基金
陕西省2023年重点研发计划项目(2023-YBGY-331,2023JBGS-07)。
关键词
纸张灰分测量
STM32
X射线
热仿真
温度补偿
paper ash measurement
STM32
X-ray
thermal simulation
temperature compensation
