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The displacement of an object is measured using a linear potentiometer with resistance Rp = 1.8 k as shown in Figure A5. The potentiometer output is connected to a load with resistance R₁ through an operational amplifier circuit. The load is uncertain in a range [200 № -1 kN]. The input voltage Vin is 3.3 V. The total resistance element length is 250 mm. (a) Explain the operation of this circuit, including a justification for the operational amplifier stage. (b) Initially, the sliding contact is positioned such that X is one third of L. The linear displacement of the object causes the sliding contact to move such that the voltage drop of the load resistance 0.8 V. Determine the displacement of the object and the direction in which it moves. (1-x)Rp L A RL Vin xRp Figure A5

The displacement of an object is measured using a linear potentiometer with resistance Rp = 1.8 k as shown in Figure A5. The potentiometer output is connected to a load with resistance R₁ through an operational amplifier circuit. The load is uncertain in a range [200 № -1 kN]. The input voltage Vin is 3.3 V. The total resistance element length is 250 mm. (a) Explain the operation of this circuit, including a justification for the operational amplifier stage. (b) Initially, the sliding contact is positioned such that X is one third of L. The linear displacement of the object causes the sliding contact to move such that the voltage drop of the load resistance 0.8 V. Determine the displacement of the object and the direction in which it moves. (1-x)Rp L A RL Vin xRp Figure A5

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The displacement of an object is measured using a linear potentiometer with resistance Rp = 1.8 k as shown in Figure A5. The potentiometer output is connected to a load with resistance R₁ through an operational amplifier circuit. The load is uncertain in a range [200 № -1 kN]. The input voltage Vin is 3.3 V. The total resistance element length is 250 mm. (a) Explain the operation of this circuit, including a justification for the operational amplifier stage. (b) Initially, the sliding contact is positioned such that X is one third of L. The linear displacement of the object causes the sliding contact to move such that the voltage drop of the load resistance 0.8 V. Determine the displacement of the object and the direction in which it moves. (1-x)Rp L A RL Vin xRp Figure A5
Transcribed Image Text:The displacement of an object is measured using a linear potentiometer with resistance Rp = 1.8 k as shown in Figure A5. The potentiometer output is connected to a load with resistance R₁ through an operational amplifier circuit. The load is uncertain in a range [200 № -1 kN]. The input voltage Vin is 3.3 V. The total resistance element length is 250 mm. (a) Explain the operation of this circuit, including a justification for the operational amplifier stage. (b) Initially, the sliding contact is positioned such that X is one third of L. The linear displacement of the object causes the sliding contact to move such that the voltage drop of the load resistance 0.8 V. Determine the displacement of the object and the direction in which it moves. (1-x)Rp L A RL Vin xRp Figure A5
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