S系列DAQ板卡的基准时钟稳定性有多高?
硬件: Wireless Sensor Network>>WSN Gateways>>NI 9792>>NI 2810>>IMAQ - CameraLink>>IMAQ-1000 PCI Camera Link I/O Extension Board>>PCI-6110
问题: NI 6115, NI 6110和NI 6111的基准时钟稳定性有多高?
解答: S系列板卡的基准时钟精度在50ppm,也就是+/- 0.005%。随着晶振的老化,这个值会有一定程度的偏差,最坏的情况下,每年会有+/- 5ppm的偏差。National Instruments的目录册上把这个值变成了100ppm,因为它没有考虑晶振老化的问题。如果需要更多的关于时钟稳定性的信息,请察看下面的链接。
相关链接: KnowledgeBase 1F5DD5KD: What Is Meant by the Stability of an Onboard Clock?
附件:
报告日期: 09/22/2000
最近更新: 07/27/2004
文档编号: 21L6FML8
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