在数字化测控及检测系统中,对现场各种信号源信息的获取主要由各种类型传感器及数据采集通道组成,系统的技术指标通常也由这两方面决定。主要就传感器输出及模拟输入A/D分辨率进行了辨析,对传感器与数据采集(即模拟输入A/D)的理性选型及合理匹配进行了简要分析,旨在达到降低系统误差,提高系统精度等级的目的,进而为系统准确度提供保证。 In the digital measurement and control and detection system, the information of various signal sources in the field is mainly composed of various types of sensors and data acquisition channels, and the technical indicators of the system are usually also determined by these two aspects. Mainly on the sensor output and analog input A / D resolution were analyzed, the sensor and data acquisition (ie analog input A / D) rational selection and reasonable matching were briefly analyzed to achieve the goal of reducing system error and improve the system The purpose of the accuracy level, and thus provide a guarantee for system accuracy.