User's Guide
This document is subject to change without prior notification.
Binsfeld Engineering Inc. | 231-334-4383 www.binsfeld.com 869610-9_A2 Pg. 43
Legend of Terms
V
S
Voltage Output with Shunt Applied (V)
ε
S
Strain Simulated by Shunt (µe, GF = 2.0)
ε
FS
Full Scale Strain (µe, GF = 2.0)
Z
Scale Factor (one if no scaling)
V
FS
Full Scale Voltage Output (V) (10V)
In this example, with Reference 1 applied, the calibrated Voltage Output
would be calculated as follows:
Adjust the System Gain setting until the output matches this value. The
adjustment is typically small (<0.5%). The system is now ready to
measure torque with the desired output scaling.
NOTE: When the Gage Factor is not 2.0, the actual Full Scale Strain and
Simulated Strain values are affected proportionately. In the example
above with a Gage Factor of 2.08, Full Scale Strain is technically
480.7µe, not 500. However, the Simulated Strain is likewise affected
(Ref 1 becomes 96.14µe, not 100). The ratio of Simulated Strain to Full
Scale Strain remains constant (20%) and the calculation above remains
valid.
Also, if the gage resistance is not 350
Ω, the Reference 1 & 2 Simulated
Strain values are not 100 and 500 µe, respectively. Use our online
calculator or the equation on page 33 to calculate the simulated strain in
this instance (use GF = 2.0).
100 µe
───── (0.9802) (10 V) = V
S
= 1.9604 V
500 µe
ε
S
V
S
= ── (Z)(V
FS
)
ε
FS