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Forum 在测试系统中使用合成仪器优势和劣势分析
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  • 合成仪器
  • ats
  • 测试系统
Related

在测试系统中使用合成仪器优势和劣势分析

Grace
Grace over 15 years ago

几十年来,基于台式仪器的自动测试系统(ATS)一直是航空和国防应用中采用的主导架构。在20 世纪80 年代后期,基于VXI的模块化系统克服了机架和堆叠方法的多个缺点。特别是安装在多插槽主机中的基于板卡的仪器降低了系统的尺寸和重量。VXI 背板的速度和功能还增强了触发能力,加快了数据传送速度。但是,所有这些商业技术的生命周期一般要远远短于典型的航空或国防系统,可能会影响ATS的长期维护和支持。

   

这些问题推动着合成仪器(SI)方法的出现。合成仪器的概念非常简单,即允许配置和重新配置模块化硬件和软件单元,创建多部测量设备的功能。这种构件方法可以通过简单地更换一个模块,如数字化器或向下变频器,来更新或升级ATS 或测试程序集(TPS)。它还可以降低ATS 使用期间的软件升级负担。

 

   

“在测试系统中使用合成仪器”是安捷伦一系列应用指南中的第五个应用指南,旨在帮助您从GPIB、VXI或PXI 有效转向LAN仪器扩展协议(LXI)。本指南的目的是帮助您分析SI对您当前或未来要求的潜在价值。为便于讨论,本指南简要回顾了SI 历史,比较了机架和堆叠系统与基于SI 的系统,描述了SI 的前期应用,演示了怎样使用SI 仿真传统仪器。本指南还包括与合成仪器有关的词汇表。

 

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