摘要
测量动态压力信号的传感器频响较高,信号范围较宽;针对被测对象的特点,依托现有采集器具有的多通道同时采集、FRI(有限长冲击响应)数字滤波、单通道高采样率、16位的高分辨率等技术特点[3],设计一款高性能调节器;它与采集器的特性形成优势互补,组成的采集系统既能准确采集动态压力的全压信号、同时又能分离出其中的交流分量进行采集;通过验证,该测试系统能够为飞行试验提供准确可靠的动态压力数据,成功的解决了以往的动态压力测试技术难题。
The sensor to measure dynamic pressure signals have high frequency response and wide signal range. Based on the characteristic of the signal to be measured, design a high performance regulator according as the feature of sampler available such as sampling multi channels simultaneously, finit--impuls--response digital filter, high sample rate each channel, 16--bit precision data. This regulator compensate the samplers and reversely. Both total pressure and ahernating portion can be measured in the dynamic pressure measument system consisted of the regulator and samplers. Through the test, the system for flight test can provide accurate and reliable dynamic pressure data, successfully resolved the problem of dynamic pressure testing technology.
出处
《计算机测量与控制》
CSCD
北大核心
2012年第6期1480-1482,共3页
Computer Measurement &Control
关键词
飞行试验
动态压力
采集系统
flight test
dynamic pressure
acquisition system
