FPGA在智能压力传感器系统中的应用  

Application of FPGA in Intelligent Pressure Sensor System

作　　者：张娟 

机构地区：[1]陕西省高速公路建设集团公司,陕西西安710054

出　　处：《现代电子技术》2009年第16期193-195,共3页Modern Electronics Technique

摘　　要：传统的压力传感器系统结构复杂,易受干扰,而智能传感器系统能够将传感器、数据采集、微处理器和数据接口集成在一起,具有强大功能和良好抗干扰性能。在设计中利用FPGA具有构建系统灵活,可实现片上系统的优点,将系统中的嵌入式CPU、片上存储器、数据接口电路以及数据采集控制模块集成在一个芯片上,简化了系统的设计;同时采用多种误差消除方法,构建一个具有零点漂移校准、随机误差消除和温度补偿功能的智能压力传感器系统,给出了FPGA数据采集控制功能模块的仿真结果。结果表明系统运行正确。A normal pressure sensor system is easily disturbed, which has complex construction. An intelligent sensor system can incorporate sensor with data acquisition and microprocessor,digital interface,so it has a high anti- disturbing performance and multifunction. FPGA is applied in the intelligent sensor system considering the advantages of flexible construction and SoC,which may integrate embed CPU, RAM and digital interface circuit into a single chip and reduce the design. Meanwhile, many anti- disturbing methods are used in this system. An intelligent sensor system based on FPGA is constructed with zero drift calibrated and random errors eliminated and temperature compensated function. The simulation of DAS function on FPGA is given. The result shows the system runs correctly.

关 键 词：FPGA 智能压力传感器 SOC 温度补偿 数据采集系统 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]