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对姿态控制发动机参数特别是对燃烧室压力、发动机推力和推进剂流率进行快速检测和处理,必须采用快速数据采集和处理系统。实现这种系统的难度很大,一般要求系统的测量误差小于1%。姿态控制发动机有稳态和脉冲两种工作方式。在脉冲工作方式下,脉冲时间短(几十毫秒至几千毫秒),脉冲次数多(几万次),需要进行大量的数据处理。此外,发动机性能参数绝对值极小,如推力只有几十克至几千克,流量只有几百毫克至几十克每秒,因此,必须专门研制特殊传感器,才能测得发动机的主要工作参数。
For attitude control engine parameters, especially for rapid detection and treatment of combustor pressure, engine thrust and propellant flow rates, a fast data acquisition and processing system must be used. To achieve this system is very difficult, the general requirements of the system measurement error of less than 1%. Gesture control The engine has two working modes of steady state and pulse. In the pulse mode of operation, the pulse time is short (tens of milliseconds to several thousand milliseconds), the number of pulses (tens of thousands of times) requires a large amount of data processing. In addition, the absolute engine performance parameters are extremely small, such as the thrust of only tens of grams to several kilograms, the flow of only a few hundred milligrams to tens of grams per second, therefore, must be specially developed special sensors to measure the main engine operating parameters.