NI_基于计算机技术的测量与自动化系统方案.ppt

Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation National Instruments has continued to leverage off-the-shelf technology to push the limits of measurement accuracy and sample rates. In the graphic above you will see just a few of the points we have added over the past year: 7 digit digital multimeter and LCR (capacitance and inductance) meter (PXI-4072) Dual 24-bit audio analyzer/generator with -118 dB of dynamic range (PXI-4461) 100 MHz Digital Waveform Generator/Analyzer with -2.0 to 5.5 V voltage levels, programmable in 10 mV steps (PXI-6552) 200 MS/s, 12-Bit Digitizer and -75dBc spurious-free dynamic range (SFDR) (PXI-5124) Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation Computer-Based Measurement and Automation Seminar * ? National Instruments Corporation cRIO is part of the NI platform of programmable automation controllers. For automation customers have always had to choose between PLC based automation, with bullet proof hardware but limiting software, or PC based automation, with full featured software but a weak form factor. ARC (Automation Research Corporation?) an industry analyst did a study of industrial controllers and found that new controllers from both the PC side and the PLC side are filling this historical gap. These controllers have the formfactor of the PLC, but software becomes a very important part of the controller. These PACs have PC like software and functionality with PLC like formfactor and hardware specifications. With the increased complexity of machines, programmable automation controllers pr