Question: a1 = 3 and b2 = 5 A bridge strain gauge sensor composed by four equal strain gauges each of value (10xB1) 2 is used

a1 = 3 and b2 = 5 a1 = 3 and b2 = 5 A bridge strain gauge sensor

A bridge strain gauge sensor composed by four equal strain gauges each of value (10xB1) 2 is used to monitor deformation of a cantilever beam at a construction site. The strain gauge is polarized by a 5 V DC source and its output is monitored by a fully differential amplifier. Knowing that the resistance of the sensor gauges varies under strain according to the following relationship: AR=(0.001 "B2) [Q] per (al) [kPa] Plot (10 marks) and assess (10 marks) the pressure/strain gauge voltage in the range [0 to 1000] kPa Design the amplifier required to interface the full range [0 to 1000] kPa to an Arduino (0 to 5 V analogue range). (10 marks) A bridge strain gauge sensor composed by four equal strain gauges each of value (10xB1) 2 is used to monitor deformation of a cantilever beam at a construction site. The strain gauge is polarized by a 5 V DC source and its output is monitored by a fully differential amplifier. Knowing that the resistance of the sensor gauges varies under strain according to the following relationship: AR=(0.001 "B2) [Q] per (al) [kPa] Plot (10 marks) and assess (10 marks) the pressure/strain gauge voltage in the range [0 to 1000] kPa Design the amplifier required to interface the full range [0 to 1000] kPa to an Arduino (0 to 5 V analogue range). (10 marks)

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