SCC-SG Series Strain-Gauge Modules User Guide
24
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Quarter-Bridge Type I
This section provides information for the quarter-bridge strain-gauge
configuration type I. The quarter-bridge type I measures either axial or
bending strain.
Figure 17.
Quarter-Bridge Type I Measuring Axial and Bending Strain
A quarter-bridge type I has the following characteristics:
•
A single active strain-gauge element is mounted in the principle
direction of axial or bending strain.
•
A passive quarter-bridge completion resistor (dummy resistor) is
required in addition to half-bridge completion.
•
Temperature variation in specimen decreases the accuracy of the
measurements.
•
Sensitivity at 1000
µε
is
∼
0.5 m
V
OUT
/
V
EX
input.
•
Used with the SCC-SG01/02.
Quarter-bridge Type II
This section provides information for the quarter-bridge strain-gauge
configuration type II. The quarter-bridge type II measures either axial or
bending strain.
Figure 18.
Quarter-Bridge Type II Measuring Axial and Bending Strain
R
4
(+ )
R
4
(+ )
Axial
Bending
R
3
R
4
(+ )
R
4
(+ )
R
3
Axial
Bending
