the dash when the bridge is configured so the output decreases with increasing strain. Use a
dashed code when the bridge is configured so the output increases with increasing strain. A
dashed code sets the polarity of V
r
to negative.
Table 18-1: StrainCalc() configuration codes
BrConfig code Configuration
1
Quarter-bridge strain gage:
2
Half-bridge strain gage. One gage parallel to strain, the other at 90°
to strain:
3
Half-bridge strain gage. One gage parallel to +ɛ, the other parallel
to -ɛ:
4
Full-bridge strain gage. Two gages parallel to +ɛ, the other two
parallel to -ɛ:
18. Measurements99