Specifications

Single-Channel Bending Full Bridge Measurements
This program makes a bending full bridge strain measurement on channel 7
of multiplexer card number 1.
!Clear and reset the multimeter.
CLEAR 70903
OUTPUT 70903;"*RST"
!Specify the gage factor for the channel measured.
OUTPUT 70903;"STR:GFAC 2.115E-6,(@107)"
!Measure the channel’s unstrained reference.
OUTPUT 70903;"CAL:STR (@107)"
DISP "Add tension to the specimen; then press ’Continue’"
PAUSE
DISP ""
!Measure the strain on the channel. Enter and display the reading.
OUTPUT 70903;"MEAS:STR:FBEN? (@107)"
ENTER 70903;Strn_rdg
PRINT Strn_rdg
END
Comments • The wiring diagram used for this example (FBENding) is on page 30.
• When making full bridge measurements, the channel’s bridge
selection jumper must be in the "FULL" position.
• Specifying the gage factor as 2.115E-6 returns the strain
measurements in microstrain.
• A gage factor must be specified and an unstrained reference must be
measured for each channel.
40 Making Strain Gage Measurements Chapter 3
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