Using the circuit shown in Figure 476, simulate the effect in Multisim varying the strain gauge RG2 from 120 to 120:1 in increments

Using the circuit shown in Figure 4–76, simulate the effect in Multisim varying the strain gauge RG2 from 120 Ω to 120:1 Ω in increments of 0:001 Ω. Plot the resulting output versus percent of stress (ΔL=L).

RGI + +VREF=25 V VTR RA RA RB RG1 RG2 = 120 2 = = RG2+AR RB 0-5 mV 10 w 10 w 10 www + 0-5 V 10 FIGURE 4-76