User`s guide

118



The relationship between measured strain and change in output can be found as,


To achieve an output signal of 1mV per , the gain (G) needs to satisfy:

 

  

  
Therefore,
 
 

For this experiment, gage factor (F) is 2.095.
3.1.4 Calculate the strain simulated by Shunt Resistors
Calculate the strain simulated by shunt resistors.
The connected shunt resistors are parallel to the gage, the equivalent resistance is:


 

Therefore,


 

 

Gage factor is 2.095 0.5% for the gauge chosen for this experiment. Resistance without
deformation is 120.
Eq.76
Eq.77
Eq.74
Eq.75