该测试仪是用热敏电阻为敏感元件的程序控制快速测定液体导热率的仪器.针对国内外同类仪器测量精度低、测试范围窄等问题,对该种热导率测试仪的热传导机制进行了系统的研究,建立了非稳态局部散热的点热源导热模型.它采 The tester is a thermistor as a sensitive component of the program to quickly determine the liquid thermal conductivity of the instrument.Aimed at the domestic and foreign similar instruments measuring accuracy is low, the test range is narrow and so on, the thermal conductivity of the thermal conductivity tester was Based on the research of the system, a point heat source heat transfer model with local heat dissipation is established