Abstract：To measure the temperature and velocity of the thermal plasma jet, an enthalpy probe system is developed. The enthalpy probe is not only a compensated calorimeter that can obtain the temperature of the plasma through measuring its enthalpy, but also a water-cooled pitot tube that can obtain the velocity of the plasma jet through measuring the stagnation pressure. Due to the advanced manufacture technology, the outer diameter of the probe can be reduced to 3. 8 mm, which significantly improves the sensibility and reliability of the probe. The measurement shows that the probe works safely under the temperature of 8 515 K. The temperature and the velocity of the plasma jet at the nozzle exit are also estimated from the arc power and the torch efficiency and in good accordance with the measuring results of the probe.
作者简介: 安连彤(1977 -)，男，辽宁沈阳人，广东海洋大学讲师，博士，主要从事等离子喷涂电弧特性研究。angry-angel@ sohu. com
引用本文:
安连彤，孙成琪，高阳. 量热探针在热等离子射流测量中的应用[J]. 计量学报, 2014, 35(5): 445-448.
AN Lian-tong, SUN Cheng-qi,GAO Yang. Application of Enthalpy Probe in Measuring Temperature and Velocity of Thermal Plasma Jet. Acta Metrologica Sinica, 2014, 35(5): 445-448.
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2014, Vol. 35 
