直九型直升机基准桨叶共锥度校准技术研究

Research of Common Taper Calibration for Type Z9 Helicopter Benchmark Blades

研究了桨叶对激光斩波标定算法,采用高速的CPLD逻辑阵列、36位计数器和高速DSP嵌入式信号处理系统以及通过算法程序引入非线性误差补偿来校准基准桨叶的共锥度参数;建立了直九型基准桨叶共锥度参数校准装置标定系统,其机理为利用模拟桨叶切割激光束,通过光电器件探测这一周期性的光电信号,从而对激光器定位参数进行标定;通过这套系统实现了基准桨叶共锥度参数的校准和溯源。

The calibration algorithm for blades laser chopper is studied. High-speed CPLD logic array, a 36 locus counter and a high-speed DSP embedded signal processing system are used to calibrate the taper parameters of benchmark blades with the introduction of nonlinear error compensation by algorithmic routine. A calibration system is established for taper calibration of type Z9 helicopter benchmark blades. Analog blades are used to cut laser, and opto-electronic devices are used to detect this periodic photoelectric signal, so as to calibrate laser positioning parameters. This system can realize calibration and traceability of benchamark blades taper parameters.