Physics, 17.03.2020 02:17, anthonycraig0205

Consider a piezoresistive sensor with the Wheatstone bridge circuit. In this circuit, R1 and R4 have fixed resistance of 10 kΩ while R2 and R3 are piezoresistors which have 10 kΩ + ΔR. The bias voltage V of the Wheatstone bridge circuit is 3 V. Both piezoresistors have piezoresistivity coefficient of 70 x 10-11 Pa-1 and under 1 MPa longitudinal stress (transverse stress is negligible). (a) What is the output voltage (V2 – V1) of the Wheatstone bridge circuit? (b) What is the total power consumption of the Wheatstone bridge circuit?

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Consider a piezoresistive sensor with the Wheatstone bridge circuit. In this circuit, R1 and R4 have...