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在应变测试中使用NI 9237比使用NI 9219的优势在哪里?
我想使用CompactDAQ 或 CompactRIO 从应变计中采集数据. 我有两个选择,一是使用NI 9237 电桥模块,一是使用NI 9219通用电压输入模块 . 使用9237比9219的优势在哪里?
URL:
http://digital.ni.com/public.nsf/allkb/E194B4871C42846E862573C4003A2AC2
量測 strain 時 NI 9237 相對於 NI 9219 的優勢。
我預定使用 compactDAQ 或 compactRIO 量測 Strain Gauge 的資料。NI 9237 橋接器模組與 NI 9219 通用類比輸入模組都是可以滿足我的需求的選擇。我想了解 NI 9237 優於 NI 9219 的地方。
URL:
http://digital.ni.com/public.nsf/allkb/E4B6B7E2D19676D6862573490037056F
Why Am I Getting an Unexpected Reading With My NI-9211?
I am using a NI-9211 to read a thermocouple or other low-voltage signal. My signal is within the ±80 mV specification of the NI-9211. Why am I not reading the expected input temperature or voltage?
URL:
http://digital.ni.com/public.nsf/allkb/301B36B31AB4222A8625733A0053ABB0
Incorrect Analog Input Readings with Isolated CompactDAQ Modules
When I perform a differential analog input with an NI 9205 my readings jump from reading in the correct voltage to zero. How do I fix this?
URL:
http://digital.ni.com/public.nsf/allkb/ED89C864FA1129668625731E000D03CA
cRIOでNI 9219を熱電対と使う場合のCJCチャンネル(FPGA I/Oノード)の作り方
cRIOでNI 9219を熱電対と使おうと考えています。プロジェクトの中のFPGAターゲットでCモジュールの追加でNI 9219を追加しました。FPGA I/OノードとしてCJCチャンネルを作ろうとしましたが、リストに表示されません。 どのようにしたら、CJCチャンネルをFPGA
URL:
http://digital.ni.com/public.nsf/allkb/D99A5902053E0DAE8625731500129D78
NI-9219をCompact DAQで使用する場合のサンプリングレートに関して
Compact DAQでNI-9219により測定を行うと、設定したサンプリングレートでデータは読み取れるのですが、同じデータが繰り返し集録されてしまいます。データの更新頻度を上げるには、どのようにすいればよいでしょうか
URL:
http://digital.ni.com/public.nsf/allkb/3ED773B7C63AB85886257314000C348A
How to Set the Sampling Rate of the NI-9217/9219
When I try to take measurements with the NI-9217 or NI-9219 module, I see many repeated samples. In effect, I only receive new samples at a fraction of the rate that I expect. How can I control the sampling rate of the module?
URL:
http://digital.ni.com/public.nsf/allkb/1015F4182FB8A805862572D1006B4CC1
如何設定 NI-9219 的取樣頻率〈Sampling Rate〉
當我試著用 NI-9219 模組量測訊號時,我得到許多重複的取樣點。實際上,資料值變化的速率只有我設定取樣頻率的幾分之一。我要如何控制 NI-9219 模組的取樣頻率?
URL:
http://digital.ni.com/public.nsf/allkb/5B6B0A73702FB166862573A70028A818
Incorrect Initial Sample with NI 9211, NI 9217, or NI 9219 in NI CompactDAQ
When I perform a hardware-timed acquisition with an NI 9211, NI 9217, or NI 9219 in NI CompactDAQ, the first sample that I read is old/stale. The rest of the data I acquire looks fine, but the first sample is not what I expect.
URL:
http://digital.ni.com/public.nsf/allkb/EC6B7C1528D610CC862572C70063366D
The NI 9217 and NI 9219 2-Wire RTD Support
The Operating Instructions for the NI 9217 and NI 9219 both explain how to connect and measure from a 4-Wire RTD and 3-Wire RTD. Do these modules also support 2-Wire RTD's?
URL:
http://digital.ni.com/public.nsf/allkb/09E99F60C481D613862572C300637341
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