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Decreased Counter Measurement Resolution With Digital Filtering
Why does my counter resolution decrease when I use a digital filter on a counter input task with an NI M-Series or TIO device?
URL:
http://digital.ni.com/public.nsf/allkb/176C93DAEB2FD1798625733A004D295D
将数字滤波器设为有效的时候,计数器返回了不正确的测量值
当我在使用NI M系列板卡或者TIO板卡进行计数器输入任务的时候,使用了数字滤波器。为什么计数器的测量值不正确呢?
URL:
http://digital.ni.com/public.nsf/allkb/378B112E4E57EC63862573C90049ED22
Continuous Pulse Output Jitter on TIO Devices
There is no jitter specification on pulse train output for these devices: PCI-6601 PCI/PXI-6602 PXI-6608 PCI/PXI-6624
URL:
http://digital.ni.com/public.nsf/allkb/4800AB742BD73442862572C3005D9961
Where Can I Find The Warranty For My NI Hardware?
I'm trying to find the warranty information for my NI hardware. Where can I find it?
URL:
http://digital.ni.com/public.nsf/allkb/8341879DC763DF5886257289005D816E
如何配置6608实时时钟用于GPS定时同步?
我想用6608计数器/定时器卡来做GPS定时信号同步测量。例子程序调用了Clock Program Hardware (NI-TIO).vi,但是我不知道如何配置我需要的参数。我该怎么做?
URL:
http://digital.ni.com/public.nsf/allkb/85ED10316000275D48257264000F11DE
用于热电偶测量的NI推荐硬件
NI Home This Document is not yet Rated Rate this Document 用于热电偶测量的NI推荐硬件 硬件: Multifunction DAQ (MIOE Series, Multifunction DAQ (MIOM Series, Multifunction DAQ (MIOPortable>>USB-9211A, SCXI>>Modules>>SCXI-1102, SCXI>>Terminal Blocks>>SCXI-1303, SCXI>>Modules>>SCXI-1112, SCXI>>Modules>>SCXI-1125,
URL:
http://digital.ni.com/public.nsf/allkb/5728F1E2C606756E4825724400233160
Scan Clock和Update Clock有什么区别?
我有一块E系列的数据采集卡(DAQ),我想知道这些时钟有什么作用,它们之间有什么区别?
URL:
http://digital.ni.com/public.nsf/allkb/3CD08F3CAD482C4748257237003A0CFA
6601 和 6602 计数器/定时器 DAQ 板卡的输入阻抗是多少?
NI Home This Document is not yet Rated Rate this Document 6601 和 6602 计数器/定时器 DAQ 板卡的输入阻抗是多少? 硬件: Counter/Timers (TIODevices>>PCI-6602, Counter/Timers (TIODevices>>PCI-6602 问题: 6601 和 6602 计数器/定时器 DAQ 板卡的输入阻抗是多少? 解答: 输入阻抗依赖于内部 ASIC 的下拉电阻值。6601/6602 使用手册中指出下拉电流从 10 μA 到 200 μA。这对应于输入阻抗在 25 kΩ 到 500
URL:
http://digital.ni.com/public.nsf/allkb/3F5405C9D8FFE7854825718C001BE998
PCI-6601 或者 PCI-6602 最大的输出频率是多少?
NI Home This Document is not yet Rated Rate this Document PCI-6601 或者 PCI-6602 最大的输出频率是多少? 硬件: Counter/Timers (TIODevices>>PCI-6602, Counter/Timers (TIODevices>>PCI-6602 问题: PCI-6601 或者 PCI-6602 最大的输出频率是多少? 解答: 您能获得的最大输出频率依赖于您使用的时基以及您指定的脉冲。首先,我们先来看时基。时基越快,您能得到的输出频率越快。PCI-6601 最大的时基是 20 MHz,PCI-6602
URL:
http://digital.ni.com/public.nsf/allkb/02CD99540F52A4274825718C00279095
PCI-6624 周期测量精度
利用 PCI-6624 执行一个周期测量时,精确度是 500 ns。时基是 20 MHz,为什么精确度不是 50 ns?
URL:
http://digital.ni.com/public.nsf/allkb/8FA81810C8B94B7B4825718C00325504
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