气敏传感器及其检测电路的设计是基于DGA(DissolvedGasesAnalysis)牵引变压器绝缘在线监测技术的关键环节。为检测传感器性能,设计了气敏传感器测试实验;在实际检测中,采用多个传感器组成传感器阵列,并利用径向基(RBF)原理解决了传感器阵列相互干扰性问题,通过比较试验数据与标准测试仪测量结果,验证了传感器阵列的有效性和稳定性。 Gas sensor and its detection circuit design is based on DGA (DissolvedGasesAnalysis) traction transformer insulation on-line monitoring of key technologies. In order to test the performance of the sensor, a gas sensor testing experiment was designed. In actual testing, the sensor array was composed of multiple sensors and the mutual interference of the sensor array was solved by using the Radial Basis Function (RBF) principle. By comparing the test data with the standard Tester measurement results verify the effectiveness and stability of the sensor array.