SCC-SG Series Strain-Gauge Modules User Guide
12
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resistors are socketed for easy replacement. Refer to the
SCC-SG03
Half-Bridge Connection
In a half-bridge configuration, you use two active strain-gauge elements.
A half-bridge completion reference inside the SCC-SG03 completes the
bridge configuration. There are two half-bridge configuration types
supported by NI software, and one quarter-bridge configuration type that
requires half-bridge completion. The following sections describe how to
connect half-bridge strain-gauge configuration types I and II and
quarter-bridge strain-gauge configuration type II.
The SCC-SG03 module label displays the icon shown in Figure 6.
This icon label also represents the module bridge configuration.
Figure 6.
SCC-SG03 Icon
Half-Bridge Type I
This section provides information for the half-bridge strain-gauge
configuration type I. The half-bridge type I measures either axial or
bending strain.
Figure 7 shows a general half-bridge type I circuit diagram.
Figure 7.
Half-Bridge Type I Circuit Diagram
R
1
R
L
R
2
R
L
R
L
R
4
(+ )
R
3
(– )
+
–
–
+
V
EX
V
CH
