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Chapter 4
38
illustrates how to connect a nonfloating signal source to
your own screw terminal panel using differential inputs. In this case,
the signal source itself provides the bias return path; therefore, you
do not need to provide bias return resistance through software.
R
s
is the signal source resistance while R
v
is the resistance required to
balance the bridge. Note that the negative side of the bridge supply
must be returned to analog ground.
Figure 11: Connecting Differential Inputs to a Screw Terminal Panel
Floating
Signal
Source
+
-
20
36
Analog In 0
Analog In 0 Return
Analog Ground
R
s
Analog In 0
Analog In 0 Return
R
v
R
s
Bridge
+
-
DC Supply
A)
B)
It is recommended that
you use the Open Layers
Control Panel applet to
enable 10 k
Ω
of
resistance to connect
the low side of channel 0
to analog ground (a
physical resistor is not
required). Refer to
for more information.
1
36
20
1
Analog Ground
Screw Terminal Panel
Screw Terminal Panel
Содержание KUSB-3116
Страница 10: ...Contents x...
Страница 14: ...About this Manual xiv...
Страница 15: ...1 1 Overview Hardware Features 2 Supported Software 4 Getting Started Procedure 5...
Страница 20: ...Chapter 1 6...
Страница 21: ...7 2 Preparing to Use a Module Unpacking 9 Checking the System Requirements 10 Installing the Software 11...
Страница 26: ...Chapter 2 12...
Страница 64: ...Chapter 4 50...
Страница 65: ...51 5 Verifying the Operation of a Module Overview 53 Running the Quick Data Acq Application 54...
Страница 75: ...61 A Ground Power and Isolation Connections...
Страница 78: ...Appendix A 64...
Страница 82: ...Index 68...