Rearrange Equation 2 to put it in the form:
(1")
The relative change in resistance after the application of the shunt resistor is:
(2")
Recalling that the strain is related to a change in resistance by:
(3")
Thus combining Equation 2" and Equation 3" yields an expression for the equivalent strain simulated by the shunt resistor is given by:
(3)
