National Instruments 9201 用户手册

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页码 28
NI 9201/9221
10
ni.com
You can connect single-ended voltage signals to the NI 9201/9221. 
Connect the positive lead of the voltage signal to AI. Connect the 
ground signal to COM. Refer to Figure 3 for an illustration of 
connecting a single-ended voltage signal to the NI 9201/9221.
 
Figure 4.  Connecting a Single-Ended Voltage Signal to the NI 9201/9221
Note
You must use 2-wire ferrules to create a secure 
connection when connecting more than one wire to a 
single terminal on the NI 9201/9221 with screw terminal.
Wiring for High-Vibration Applications
If an application using the NI 9201/9221 with screw terminal is 
subject to high vibration, National Instruments recommends that 
you either use ferrules to terminate wires to the detachable 
COM
AI
+
Voltage
Source
NI 9201/9221