BINSFELD ENGINEERING INC.
Torque Calculators
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Units: ENGLISH
Units: METRIC
TorqueTrak
10K
TorqueTrak
TPM2
TorqueTrak
Revolution
Torque Strain
TorqueTrak 10K
Torque Range Calculator
Full Scale Torque
corresponds to 10V output from the RX10K receiver
Outer Diameter (D
O
)
inches
Inner Diameter (D
I
)
inches (enter 0 for solid shaft)
Gage Factor (GF)
(supplied with gages)
Number of Active Gages (N)
(4 for full bridge)
Sys. Output Full Scale (V
fs
)
volts
Bridge Excitation Level (V
exc
)
volts
Modulus of Elasticity (E)
Mpsi (30 Mpsi for steel)
Poisson Ratio (v)
(0.3 for steel)
Transmitter Gain (G
xmt
)
500 (± 4000με)
1000 (± 2000με)
2000 (± 1000με)
4000 (± 500με)
8000 (± 250με)
16000 (± 125με)
Full Scale Torque T
fs
Full Scale Torque T
fs
Scale TorqueTrak 10K Output
Optional
User Full Scale Torque (T
ref
)
ft-lb
(0.25 to 4.0 times Full Scale Torque; with no scaling, T
ref
= T
fs
)
Set System Gain on RX10K receiver to this value
System Gain (G
S
)
Sensitivity (S)
Sensitivity (S)
Verify the Output
Recommended
Shunt 1 Sim. Torque (T1)
Shunt 1 Sim. Torque (T1)
Shunt 2 Sim. Torque (T2)
Shunt 2 Sim. Torque (T2)
Output with Shunt 1 (V1)
Displayed Value 1 on RX10K
Output with Shunt 2 (V1)
Displayed Value 2 on RX10K
NOTE:
Valid for 350 ohm strain gage only. Deviation in the actual Voltage Output or Displayed Value from the Calculated Output value with shunt applied is not an indication of overall system accuracy. Shunt is placed in parallel with one leg of the bridge, exaggerating error that is cancelled in the full bridge circuit. However, Voltage Output should be within +/-1% of the calculated value.
Torque & Power Conversions
Enter Horsepower
hp
Enter RPM
RPM
Torque
Torque
Enter Torque
ft-lb
Enter RPM
RPM
Power
Power
Equations
`"Full Scale Torque", T_(FS)=(V_(FS)*pi*E*4*(D_O^4 - D_I^4))/ (V_(exc)*GF*N*192*(1+v)*G_(xmt)*D_O)`
`"System Gain", G_S = (T_(fs)/T_(ref)) * G_(xmt)`
`"Sensitivity", S = T_(ref)/10`
`"Voltage Output", V = (T/T_(ref)) * V_(fs)`
