发动机测试现场的实验环境普遍存在强振动、高噪声等干扰条件，常规的用于光学实验室的激光诊断测量系统庞大、复杂且易受干扰，无法直接应用到这样的恶劣环境中。通过模块化设计和有针对性的抗振动设计，研制了一台可用于发动机现场测试、体积相对较小、结构紧凑的集成化相干反斯托克斯拉曼散射(CARS)诊断系统。测温实验前测量了发动机测试过程中的振动结果，分析了振动来源和特点，有针对性地采取了减振措施,进一步降低了振动对集成化系统的干扰。利用集成化CARS系统测量了超声速燃烧室出口喷流的温度，获得了单脉冲CARS温度拟合结果和温度随时间的变化。测量结果显示不稳定燃烧状态下的温度抖动范围大于稳定燃烧状态，但平均温度低于稳定燃烧状态，表明不稳定燃烧的效率相对较低。

The environment of engine test is usually companied with strong vibration and intense noise. The laboratorial laser combustion diagnostic systems can not be directly used in the harsh environment of engine test. Through modularization and anti-vibrating engineering designs, an integrated mobile coherent anti-Stokes Raman scattering (CARS) system is developed, which can be used in the engine test. To analyze the sources and characteristics of vibrations, the vibrations in the engine test are measured. Some de-vibrating techniques are utilized accordingly, and vibrations on the mobile CARS system decrease effectively. Employing the mobile CARS system, single pulse CARS measurements and temperature evolution on a model supersonic engine combustor are obtained. According to the results, temperature range of unstable combustion is higher than that of stable combustion, but the mean temperature is lower, indicating that the efficiency of unstable combustion is lower.