基于烧结工艺的差阻仪器内部绝缘解决方案  

Solutions for Internal Insulation of Differential Resistance Sensor Based on Sintering process

作　　者：傅罗真 丁新 沈浩 蔡纯 Fu Luozhen;Ding Xin;Shen Hao;Cai Chun(NARI Group Corporation/State Grid Electric Power Research Institute,Nanjing,210003,China)

机构地区：[1]南瑞集团(国网电力科学研究院)有限公司,江苏南京210003

出　　处：《现代科学仪器》2023年第6期236-240,共5页Modern Scientific Instruments

摘　　要：通过分析差阻仪器内部绝缘下降的电气模型,确定引起绝缘下降的关键问题所在;引入烧结工艺,通过不同材料的烧结实验,得到线胀系数合适的材料搭配和合适的线胀系数差异范围;通过生产试制和长期观测,验证了使用烧结工艺后的差阻仪器内部绝缘性能的长期稳定性和零点漂移情况。结果表明,采用烧结工艺的差阻仪器内部绝缘性能长期稳定;差阻仪器零点漂移现象明显改善,温度影响有所降低。The key issues causing insulation decline have been analyzed according to the electric model of differential resistance sensor.Based on the sintering process of different linear expansion coefficients of materials,an applicable combination and a suitable differential range of coefficient of linear expansion was analyzed and verified.The long-term stability of the internal insulation performance of the differential resistance sensor after the sintering process was verified by trial manufacture and long-term observation experiment.Important emphasis is given to the internal insulation performance is steady,the zero-drift of the differential resistance sensor isimproved,and the temperature effect is reduced.

关 键 词：差阻仪器 内部绝缘 零点漂移 温度系数 烧结工艺 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]