National Instruments PCI-1200 Uživatelský manuál Strana 22

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Chapter 2 Installation and Configuration
© National Instruments Corporation 2-5 PCI-1200 User Manual
Considerations for using the NRSE configuration are discussed in
Chapter 3, Signal Connections. Notice that in this mode, the signal return
path is through the negative terminal of the amplifier at the connector
through the AISENSE/AIGND pin.
DIFF Input (Four Channels)
DIFF input means that each input signal has its own reference, and the
difference between each signal and its reference is measured. The signal
and its reference are each assigned an input channel. With this input
configuration, the PCI-1200 can monitor four differential analog input
signals.
Considerations for using the DIFF configuration are discussed in
Chapter 3, Signal Connections. Notice that the signal return path is through
the amplifiers negative terminal and through channel 1, 3, 5, or 7,
depending on which channel pair you select.
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