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利用业界标准的自动化测试和自动化测量平台——NI PXI实现高精度、高效且高速的测试测量。NI PXI PXI系统提供了高性能的模块化仪器和丰富的I/O，这些I/O具有专用的同步功能和主要的软件功能，适用于从设备检验到自动化生产测试等测试测量应用。NI是PXI行业领导者，提供种类丰富且业界一流的产品和服务。40多年来，NI开发了众多自动化测试和自动化量系统，助力工程师解决全球最严峻的难题。

NI领导组建了PXI标准组织，创建了PXI这个开放式标准，NI PXI硬件利用了最新技术，结合强大的多核处理器、FPGA和其他技术，可增加测量范围和性能。PXI架构使得跨多个模块或多个机箱的测量同步成为可能，

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PXI系统组件
PXI系统由三个主要硬件组件组成：机箱、控制器和模块。系统软件是可重新配置且可定制的。
机箱是PXI系统的“骨架”，相当于台式计算机的机械外壳和主板。机箱可为系统提供电源、散热和通信总线，并支持同一机箱内的多个仪表模块。PXI使用了基于PC的商用PCI和PCI Express总线技术，同时结合了坚固耐用的CompactPCI模块化封装以及重要的定时和同步功能。根据不同的大小规格，机箱可配备4到18个插槽，无论用户需要的是便携式、台式、机架式还是嵌入式系统，PXI机箱均可一一满足。
PXI控制器分集成式控制器和远程控制器两种类型。集成式控制器包含运行PXI系统所需的仪器，无需连接外部PC；而远程控制器则可让您通过台式机、笔记本电脑或服务器计算机控制PXI系统。

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Achieve high precision, high efficiency and high speed test and measurement with NI PXI, the industry standard automated test and measurement platform. The NI PXI PXI system provides high performance modular instrumentation and rich I/ OS with dedicated synchronization and major software functions for test measurement applications ranging from equipment inspection to automated production testing. NI is an industry leader in PXI, offering a wide range of industry-leading products and services. For more than 40 years, NI has developed automated test and measurement systems that help engineers solve the world’s toughest problems.

NI led the formation of the PXI Standards Group to create PXI, an open standard where NI PXI hardware utilizes the latest technologies, combined with powerful multi-core processors, FPgas and other technologies, to increase measurement range and performance. The PXI architecture enables measurement synchronization across multiple modules or chassis,

PXI system components
The PXI system consists of three main hardware components: chassis, controller, and module. The system software is reconfigurable and customizable.
The chassis is the “skeleton” of the PXI system, equivalent to the mechanical shell and motherboard of a desktop computer. The chassis provides power, cooling, and communication buses for the system, and supports multiple instrument modules in the same chassis. The PXI uses commercial PC-based PCI and PCI Express bus technologies, while combining a rugged CompactPCI modular package with important timing and synchronization capabilities. Depending on the size specifications, the chassis can be equipped with 4 to 18 slots, whether the user needs portable, desktop, rack or embedded system, PXI chassis can meet one by one.
PXI controller is divided into two types: integrated controller and remote controller. The integrated controller contains the instruments needed to run the PXI system without connecting to an external PC; The remote controller allows you to control the PXI system from a desktop, laptop, or server computer.

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