APPLICATION NOTE
4
Figure 5: Strain Gauge Bridge Circuit
For example, as strain gauge is part of a pressure sensor, the full-scale output is 50 mV with a bias voltage of 10
V and the full scale corresponds to a pressure of 500 psi. Within the normal operating range, the bridge output
is 10V*(F*SENS). In this case, with the full-scale output 50 mV at F = 500, the SENS = 50mV/(10V*500) =
10e-6.
Figure 6: Simulation result for Strain Gauge Bridge circuit
