钇稳定二氧化锆火焰传感器的静态响应特性

By the use of a muffle, the static response of the yttria-stabilized zirconia (YSZ) flame sensor to temperature was measured in the range of 873-1 523 K, and the static calibration curve and response characteristics of the sensor were obtained and analyzed. The results show that the linearity of the YSZ flame sensor is 12.88%; with 24 V excitation voltage, the average sensitivity is 10.02 mV/K; the indexes of hysteresis and repeatability are 2.13% and 2.22%, respectively; the interchangeability between different YSZ flame sensors is 1.22%; the static calibration curve of the sensor can be accurately fitted by the Boltzmann function with an error of less than ±3.5%. The YSZ flame sensor has significant nonlinearity, high sensitivity, good precision and interchangeability, and the overall performance is good. Compared with thermocouples and ion-based flame sensors commonly used for flame detection, the output signal of the YSZ flame sensor in response to the flame temperature is steady and robust, which can effectively improve the accuracy and reliability of flame detection.