引入了一种基于比率法的铂电阻高精度测温方法，简化了接口电路，从而提高了热蒸汽密度和流量计量精度。
Introduced a ratio method to measure the heat stream temperature with platinum resistor, the interface circuit is simplified and the precision for the flow measurement improved largely.
利用最小二乘法，建立过热蒸汽的密度与温度、压力之间的函数关系，实现过热蒸汽的空间曲面补偿法，力求测量误差达到最小。
Use method of the least squares to build function relation between temperature and pressure, the space camber compensation method is realized and makes THD measuring error least.
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