The relationship between the generator output power and thermoelectric leg aspect ratio is derived . The matching relationship between the load resistance and aspect ratio and which between the external thermal resistance and aspect ratio are obtained respectively .

导出了 发电器输出功率与 电偶 臂面长比的关系式，获得了负载电阻及外部热阻两者分别与面长比的匹配关系。

The present results can provide the theoretical reference for the reasonable assembly and performance optimization of thermoelectric generation system . ( 5 ) The study on the optimization of thermoelectric leg structure size .

研究结果为温差发电系统的合理装配及性能优化提供了理论参考。（5） 电偶 臂结构尺寸的优化设计研究。