Question

15-a. If the strain transducer had nominal resistance of 120 excitation voltage of 2 volts, and a gage factor of 2, nge of 2 volts, and a gage factor of 2, what change of current through the resistor would you expect after we minal resistance of 120 ohms, and per inch? cor would you expect after inducing a strain of 7 micro-inches Strain (€) = GF(1+2V) solve for Rg (=-119.99895)

Answer 1

Answer: RL (1): R8 GF (I+2V) Stain (E) = yV Lwhele 7 l-in /in GE=2 RL= 1202 Hence mubrtitethg the given yalves in eqmation wa have' he lequited velne of Rq -4 (2) 7x10-6 (14) 120 Rg 2(1+2(2)) 7x106 120 lo Rg 7x10 xlo I+ 120 %3D 131

+ 120 -0.875x10-s 11 Rg -120 I+ 0.0000085 Rg Rg = -120 1.00000875 Kg = -119.99895