燃烧驱动全气相碘激光器需要通过燃烧产生所需要的氟原子,但是用于点火的脉冲源对微弱信号测试产生了严重干扰。为了解决燃烧驱动点火控制脉冲源对微弱信号测试的干扰,基于燃烧室内气体一旦点燃压力就迅速升高的特点,采用仪表、集成电路等研制了一套具有反馈控制的闭环点火控制系统。对系统的工作原理和硬件组成分别进行了介绍。实验表明,本系统既可以保证系统正常点火,又能保证系统在无干扰的情况下实现测试。 Combustion-driven, gas-phase iodine lasers require the production of the required fluorine atoms by combustion, but the pulsed sources used for ignition cause severe disturbances in weak signal tests. In order to solve the problem that the ignition source of combustion control ignites the weak signal test, a closed-loop ignition control system with feedback control is developed based on the characteristic that the gas in the combustion chamber rapidly rises once the ignition pressure rises. The working principle of the system and hardware components were introduced. Experiments show that the system can not only ensure the normal ignition of the system, but also ensure that the system can achieve the test without interference.