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B3: Single Grid (1/4 Bridge)
Step 1: Calculate Full Scale Strain,
FS
(inches/inch) that
corresponds to the maximum system output of 10.0V.
Using the values listed in the table below, this equation reduces to:
Legend of Terms
FS
Full Scale Strain (inches/inch; 10
-6
inches/inch =
1 microstrain)
GF
Gage Factor (specified on strain gage package)
G
XMT
Telemetry Transmitter Gain (user configurable, typical
is 4000 for ±2000 microstrain range)
TX
const
Transmitter constant = 2.5 volts
V
FS
Full Scale Output of System = 10 volts
Example:
GF (gage factor from gage package) = 2.045
G
XMT
(TX10K gain setting) = 4000
(16)
FS
=
= 1956 x 10
-6
inches/inch
(2.045)(4000)
so 10 V output from the RX10K indicates 1956 microstrain or 196
microstrain/volt.
For information on output scaling and calibration, see section B1.
(V
FS
)(4)
=
FS
(TX
const
)(GF)(G
XMT
)
(16)
=
FS
(GF)(G
XMT
)
Summary of Contents for TorqueTrak 10K-LP
Page 1: ...TorqueTrak 10K LP Torque Telemetry System User s Guide 869501 9_F ...
Page 2: ......
Page 45: ... 43 ...
