自整角机系统精粗通道的软件合成算法

针对某位置随动控制系统中位置角检测的问题,对位置检测通道中的主要元器件和精粗通道位置角度合成软件进行了研究和分析。在实际随动控制系统的位置反馈检测中,使用了SDC17xx自整角机转换器和型号为MSP320LF2407的DSP芯片,建立了DSP与自整角机转换器之间的电路接口关系;采用了精粗通道位置角合成方式,在对自整角机精粗通道传统理论公式进行分析总结基础上,提出了新的精粗通道位置角合成经验公式代替理论公式,消除了精粗通道位置角合成理论公式出现的误差。通过DSP对数据实时采集,并对采集的数字信号采用经验公式进行精粗合成,最终实现了位置信号的精确检测。研究结果表明,用简易的经验公式,采用软件计算代替复杂的硬件设计,节省了成本,提高了产品的可靠性。

Software synthesis algorithm of coarse and fine channels in the system of selsyn

Aiming at the problem of detection of angular position in one position servo control system,the key components in the channel of detecting angular position and the software of synthesis angular position of the coarse and fine channels were analyzed.The selsyn converter SDC 17xx and DSP type of TMS320LF2407 were used in the position feedback detection circuit of the practical servo control system to establish circuit interface relationship between DSP,the mode of synthesis of coarse and fine angles was adopted,based on analyzing and summarizing,a new practical formula was presented instead of theoretical one to eliminate the theoretical synthesis error.Through the collection of the coarse and fine positions timely and the coarse and fine position synthesis of the digital signals with practical formula by DSP,the exact detection of the angular position was achieved.The results indicate that reducing cost and improving reliability can be realized with simple software compute instead of complex hardware design.