发展了测定电离复合速率常数的一种新的激波管方法。在这一方法中使用反射激波加热预混气体使之电离,相继用可控制的强稀疏波使之快速冷却,冷却速度很快,可达106K/s, 使之在冷却过程中,电离远离平衡态。用压电传感器和Langmuir 探针监测状态变化历程和离子浓度,并可获得过程中所有的状态参数。测定了NO+ + e 电离复合速率常数。实验表明这一方法简易可靠 A new shock tube method for determining the rate constant of ionization recombination has been developed. In this method, a reflected shock wave is used to heat the premix gas to ionize it, which is rapidly cooled down by a controllable strong sparse wave one after another. The cooling rate is very fast, up to 106 K / s, allowing it to ionize away from the cooling process Equilibrium A piezoelectric sensor and Langmuir probe are used to monitor the state change and ion concentration, and all the state parameters in the process can be obtained. The ionization rate constants of NO + + e were determined. Experiments show that this method is simple and reliable