基于烟花算法的压阻式压力传感器动态补偿方法

发布时间：2018-11-11 10:08

【摘要】：为了解决在冲击波测试过程中,压力传感器有限的工作带宽和较低的谐振频率导致测试信号发生畸变问题,提出采用烟花算法对传感器进行动态补偿方法,并针对动态补偿改进适应度函数,进一步提高补偿结果的动态性能。通过激波管测试数据得到传感器动态补偿传递函数,可将阶跃压力信号的上升时间补偿至15.0μs,超调量降低到8.27%;对实际炮口冲击波测试数据进行动态补偿,结果显示,动态补偿可有效抑制压力传感器谐振频率的影响,提高超压峰值和正压作用时间的测试精度。
[Abstract]:In order to solve the distortion problem caused by the limited working bandwidth and low resonant frequency of the pressure sensor during the shock wave testing, a dynamic compensation method based on fireworks algorithm is proposed. The dynamic performance of the compensation result is further improved by improving the fitness function of the dynamic compensation. The dynamic compensation transfer function of the sensor can be obtained by the shock tube test data. The rising time of the step pressure signal can be compensated to 15.0 渭 s, and the overshoot can be reduced to 8.27 渭 s. The dynamic compensation of the actual muzzle shock wave test data shows that the dynamic compensation can effectively suppress the influence of the resonant frequency of the pressure sensor and improve the measurement accuracy of the peak overpressure and the positive pressure time.
【作者单位】：长春理工大学电子信息工程学院;
【基金】：总装备部装备运输局科研项目(2013年)
【分类号】：TJ301;TP212

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