饱和氧浓度铅铋共晶合金中Cu/Cu2O型氧传感器性能研究  

Accuracy and Responsiveness Test Study of Cu/CuO Oxygen Sensor in Oxygen Saturated Lead-Bismuth Eutectic

作　　者：许裕恒 牛风雷[1] 张瑜 赵云淦[1] Xu Yuheng;Niu Fenglei;Zhang Yu;Zhao Yungan(North China Electric Power University,Beijing,102206,China)

机构地区：[1]华北电力大学核科学与工程学院,北京102206

出　　处：《核动力工程》2020年第4期181-184,共4页Nuclear Power Engineering

基　　金：国家自然科学基金资助项目(11635005)。

摘　　要：共晶在池式液态铅铋合金固态氧控实验装置平台上进行了Cu/Cu2O型氧传感器的研发和测试,氧控平台从500℃阶梯式降温到300℃,降温过程铅铋合金中通入95%Ar+5%O2的混合气体令液态铅铋共晶合金(LBE)保持氧饱和状态。结果表明,在300~500℃温度区间内,采用Cu/Cu2O作为参比电极的氧传感器从准确性、响应性上都表现出良好的性能;氧传感器能迅速地对因温度变化而带来的氧浓度变化做出响应;氧传感器测量的电动势与理论电动势的相对误差保持在±3%内,氧浓度误差保持在±10%内,信号波动小于1.7 mV。Cu/Cu2O oxygen sensor was tested on the pool type experimental device for solid-phase oxygen control. Experimental device was cooled from 500℃ step-by-step to 300℃. 95%Ar+5% O2 was injected during cooling process. The test indicates that the Cu/Cu2O oxygen sensor shows good performance in terms of accuracy and responsiveness in the temperature range from 300℃ to 500℃. Oxygen sensors can respond to the changes of oxygen concentration caused by temperature change quickly. The relative deviation between the electromotive force(EMF) of the oxygen sensor and the theoretical EMF remains within ±3%, and the oxygen concentration relative deviation is maintained within ±10%. Oxygen sensor signal fluctuation in the test is within 1.7 mV.

关 键 词：液态铅铋共晶合金(LBE) 固态氧控 氧浓度 氧传感器 

分 类 号：TL349[核科学技术—核技术及应用]