SCC-SG Series Strain-Gauge Modules User Guide
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Half-Bridge Type II...................................................................13
Quarter-Bridge Type II..............................................................14
SCC-SG04/24 Full-Bridge Connection............................................16
Full-Bridge Type I.....................................................................16
Full-Bridge Type II ...................................................................17
Full-Bridge Type III ..................................................................18
Configuring the SCC System ..................................................................20
Traditional NI-DAQ .........................................................................20
NI-DAQmx.......................................................................................20
Virtual Channels, Physical Channels, and Tasks .............................21
Creating a Virtual Channel in Traditional NI-DAQ..................21
Creating an NI-DAQmx Task or Global Channel.....................22
Wheatstone Bridges..........................................................................23
Quarter-Bridge Type I ......................................................................24
Quarter-bridge Type II .....................................................................24
Half-Bridge I ....................................................................................25
Half-Bridge II ...................................................................................26
Full-Bridge Type I............................................................................26
Full-Bridge Type II...........................................................................27
Full-Bridge Type III .........................................................................28
Filtering ............................................................................................29
Amplification....................................................................................29
Excitation..........................................................................................29
Bridge Completion ...........................................................................30
Offset Nulling Adjustment ...............................................................30
Nulling Range Adjustment........................................................31
Shunt Calibration Using the SCC-SG11 ..........................................32
Connecting the SCC-SG11 Shunt Resistors..............................32
Using Shunt Calibration to Correct for Gain Error ...................36
Replacing the Quarter-Bridge Completion Resistors .......................37
Replacing the Nulling Resistors .......................................................38
Replacing the Shunt Resistors ..........................................................38
..............................................................................39
Converting Voltage Measurements to Units of Strain .....................39
Strain Equations................................................................................40
Formulas and Variable Definitions ...........................................41
Quarter-Bridge Type I ...............................................................41
Quarter-Bridge Type II..............................................................42
Half-Bridge Type I ....................................................................42
Half-Bridge Type II...................................................................42
Full-Bridge Type I.....................................................................42
Full-Bridge Type II ...................................................................43
Full-Bridge Type III ..................................................................43
