Resistive Bridge Pressure Sensor AR=0% at Atmospheric Pressure AR= +10% at Max. Rated Pressure R3 R1 www 1K 1K+AR U1 R2
Posted: Thu May 05, 2022 2:50 pm
Resistive Bridge Pressure Sensor AR=0% at Atmospheric Pressure AR= +10% at Max. Rated Pressure R3 R1 www 1K 1K+AR U1 R2 Wh 1V U2 R6 ww 20K R5 1K R4 www 1K 1K+AR (c) The circuit shown is a resistive bridge signal conditioning circuit. When exposed to the maximum rated pressure, bridge elements R3 and R4 increase by the percentage indicated. Without reference to any circuit formulae you may know, find Vout for the maximum rated pressure being applied. Produce a fully annotated schematic including the voltage magnitudes and polarities across all resistances as well as the current magnitudes and directions in every circuit branch. Justify your answers in detail. Assume all components are ideal. [10 marks] (d) For an analog to digital converter, what is the minimum number of bits required for a minimum input dynamic range of 95dB? For a converter with your calculated number of bits, if the input full scale is +10V what is the minimum conversion error in volts that can be expected assuming no noise in the input signal? [4 marks] Vout 2