本文根据热力学理论,建立了高精度、宽范围水蒸汽热力学状态参数数学模型;分析了相应的测量技术问题;介绍了以8098单片机为数据处理核心的智能化热能测量仪的硬件结构与软件设计。实验结果表明:该仪器是一种多功能综合性智能仪器,其测量精度优于05%。 Based on the theory of thermodynamics, this paper established a mathematical model of thermodynamic parameters of water vapor with high accuracy and wide range, analyzed the corresponding measurement technique problems, and introduced the hardware structure and software design of the intelligent thermal energy meter with 8098 single-chip microcomputer as data processing core. The experimental results show that the instrument is a kind of multi-functional and comprehensive intelligent instrument whose measuring accuracy is better than 05%.