铂感温元件在-200～500℃的长期极限温度试验

The Long Term Temperature Limit Test for the Pt Sensing Elements Within -200°to+500℃

对国内两厂家生产的玻璃铂感温元件和作者自制的小型陶瓷骨架铂感温元件,在-200～500℃范围内进行热循环和长期极限温度试验。结果表明诸元件按ZBY301-85标准经试验后,其性能趋于稳定。文中提供了选择性能稳定的铂感温元件的试验方法。

The long term temperature limit test and themal circulation within the range of -200o to 500℃ are implemented on the glass Pt temperature sensing elements manufactured by two domestic factories and a miniature Pt temperature sensing element with ceramic frame made by the author. The experimental results show that these elements tend to be stable after the test according to standard CBY 301-85. The testing method for selecting Pt temperature sensing element with high stability is given.