一种基于8255A的自整角机信号控制技术研究  

Research on control technology of synchro signal based on 8255A

作　　者：吕文发[1] Lv Wenfa(Jiangsu Automation Research Institute of CSIC,Lianyungang 222006,China)

机构地区：[1]中国船舶重工集团公司,江苏自动化研究所,江苏连云港222006

出　　处：《电子技术应用》2020年第10期64-68,共5页Application of Electronic Technique

摘　　要：自整角机信号是一种高频高电压交流模拟信号,在火控系统中用来传递角度信息,电压的高低代表不同的角度大小,便于计算机系统处理,需将这些模拟信号进行数字化转换。提出了一种以8255A为控制芯片,利用模/数、数/模转换控制器对交流自整角机信号进行实时数字采集和模拟转换处理的控制方法,模/数转换器完成对外部输入的交流自整角机模拟信号进行数字化采集发计算机系统,数/模转换器完成对计算机系统的控制数据进行自整角机模拟化转换后发外部设备,8255A完成对转换数据进行输入输出控制。该控制方法具有控制灵活、电路简单、实时性强、可靠性高等特点,在火控系统中得到广泛应用。The signal of Selsyn is a kind of high frequency and high voltage AC analog signal, which is used to transmit angle information in the fire control system. The voltage level represents different angle sizes, which is convenient for the computer system to process. It is necessary to digitize these analog signals. In this paper, 8255 A is used as the control chip, and the analog-to-digital and digital-to-analog conversion controllers are used to carry out real-time signal of selsyn, a control method of digital acquisition and analog conversion processing is proposed. The analog-to-digital converter completes the digital acquisition of the analog signal of the external input AC selsyn and sends it to the computer system. The digital/analog converter completes the analog conversion of the computer system and sends it to the external equipment. The 8255 A completes the input and output control of the conversion data. It has the characteristics of flexible control, simple circuit, strong real-time, high reliability and so on. It is widely used in fire control system.

关 键 词：自整角机 8255A 控制 转换 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]