本文介绍了我们研制的固体推进剂燃速测定的新方法—光电转换法。对其测量原理,尤其对如何提高测量精度做了较详细的分析。文中对利用该方法的燃烧室结构做了简单介绍,并且分析了该方法的优点——操作简单、工作效率高及节省人力和原材料。最后给出了测定双基火药和复合火药燃速的部分数据。并且与通常采用的燃速测定方法——靶线法做了比较,得出了该法的精度高于靶线法的结果。 This article describes a new method for the determination of the burning rate of solid propellants - photoelectric conversion method. Its measurement principle, especially on how to improve the measurement accuracy made a more detailed analysis. In this paper, the combustion chamber structure using this method is briefly introduced, and the advantages of the method are analyzed - simple operation, high working efficiency and manpower saving and raw material saving. Finally, some data for determining the burning rate of double-base gunpowder and compound gunpowder are given. Compared with the commonly used burning rate method - target line method, the accuracy of this method is higher than that of the target line method.