【摘要】 本文针对催化燃烧氢气传感器敏感体工作温度的准确测量，提出了敏感体热态电阻的测试方法，建立了敏感体热态电阻与工作温度的线性对应关系，实现了不同氢气浓度下敏感体热态电阻的测量，并精确计算出不同氢气浓度下敏感体的工作温度。实验发现，敏感体补偿元件的工作温度随氢气浓度的递增逐渐减小，敏感体敏感元件的工作温度随氢气浓度的递增逐渐增大，速率为(40～50)℃/1%VOL。更多还原

【Abstract】 A method for thermal resistance testing of the sensitive substances is proposed for catalytic combustion hydrogen sensors, aiming to accurately measure the working temperature of the sensitive substances.A linear corresponding relationship between the thermal resistance of the sensitive substances and the working temperature is established, and the measurements of the thermal resistance of the sensitive substances under different hydrogen concentrations are achieved.The working temperatures of the sensitive substances under different hydrogen concentrations are accurately calculated.It is found by experiment that the working temperature of the sensitive substances compensation element gradually decreases with the increase of hydrogen concentration, while the working temperature of the sensitive substances sensitive element gradually increases with the increase of hydrogen concentration, with a rate of(40～50)℃/1 % VOL.更多还原