气体红外监测技术在煤制油领域的研究与应用

煤制油等煤化工领域的有毒有害、易燃易爆气体无处不在,针对目前常规气体监测设备的不足,对气体红外监测技术进行了研发与应用。简述了气体红外监测技术的研发背景和意义,介绍了气体红外监测技术的系统组成与工作原理,分析了该技术的技术特点、存在的风险及应对措施。红外监测仪在煤制油现场的试验表明,该技术具有一定的可靠性、先进性,成果转化和产业化的前景较好。

红外监测技术在强度试验中的应用研究

本文采用高精度红外热像仪实时监测金属元件在静力拉伸试验和振动疲劳试验过程中材料表面温度变化,结合损伤和破坏的物理过程,对试验结果进行分析。分析表明,通过红外监测金属在载荷试验过程中表面温度变化情况,可以成为了解金属裂纹萌生、扩展等过程比较有效的无损监测手段。

近红外光谱监测技术在小儿先天性心脏病术后临床应用专家共识

先天性心脏病(CHD)术后良好的脏器保护,尤其是脑、肾、胃肠等重要脏器的保护,不仅能提升生存率,而且还能极大的改善预后。近红外光监测技术(NIRS)可以实时无创多部位监测,定量提供重要脏器局部氧合的指标,有效地预警和指导CHD术后治疗和脏器保护,从而改善CHD患儿术后的转归。本专家共识对NIRS的工作原理,使用人群,使用方法学,在小儿CHD中的应用,包括脑部区域氧饱和度(rSO_(2))监测、腹部rSO_(2)监测、肾区rSO_(2)监测及体外膜肺氧合(ECMO)期间rSO_(2)监测等内容进行总结,旨在规范和指导NIRS的临床应用。

Condition Assessment of Oil-Paper Transformer Insulating System

Damages of power transformers are caused partly by construction setting but also by operation （i. e., due to operational and degradation parameters）. A long-term operation and exceeding of the limit values of transformer abbreviate the lifetime of this device very dramatically. A condition of insulating system oilpaper is principal diagnostic indicator that has its essential influence to failure-free operation of power transformers. The paper deals with a description of the experience with developed monitoring system, which is focused mainly on a control of oil filling of experimental transformer. Relative humidity, amount of dissolved gases and increased temperature are observed, as they have decisive influence on insulating system of transformer. Monitoring of these characteristics is completed with analysis of oil samples by infrared spectroscopy in mode of Attenuated Total Reflection technique.