基于 CS5550 工业测量仪表的设计：ADCMeter.ddb 中包含电路原理图和样品PCB图。本系统以 STC 系列 51 单片机为控制核心，使用高精度 CS5550 A/D 芯片来采集微弱的模拟信号量（如热电偶，热电阻信号量），可在线校准（零校准，满量程校准），校准数据保存到 93C46 中，作为以后 CS5550 运行的校准参数。本系统还包括两行八个数字位的数码管实时地显示采集数据，并可通过板上按键输入，进行输入信号变换的切换。另外还可增加串口通信部分，将采集的数据传输给上位机或其它控制单元。还具有超限报警输出、控制输出等功能。本系统以模块的方式进行编码，各模块的相关程序以文件为单位进行编写。-Based on the CS5550 industrial design of measuring instruments ADCMeter: DDB contains j circuit principle diagram and sample PCB. This system to STC series 51-series microcomputer as the core, the use of high precision CS5550 A/D chip to collect weak analogue quantity (such as thermocouple signal), thermal resistance, on-line calibration (zero calibration, full range calibration), calibration data to 93C46, as CS5550 operation after the calibration parameter. This system includes two lines of eight digit place of digital data real-time display tube, and through the plate buttons on the input signal transform input, the switch. Also can increase the serial communication, data gathering part to PC or other control unit. Also has the off-gauge alarm output, the output control etc. Function. In this system, the module way of each module in relevant procedures for the units in written documents.