Two strain gauges with a gauge factor K (which will be the last 2 digits of your student number) are placedon the chest and belly (diaphragm) area of a subject as shown in below figure. The gauges have an initialresistance of 1000 and they are connected to the given Wheatstone Bridge circuit. And output ofWheatstone Bridge circuit is connected to an instrumentation amplifier as shown in below figure. Thegauges measures the extension of chest and belly according to respiration. The resistance values foramplifier is given below.Rs = R, = R4 = 1kN, R. = 1000, Rp = 5000 , Vcc = 5VWhen the subject exhaled the strain gauges are relaxed and when the subject inhaled strain gauge A isstretched 1% and B is stretched 2%. Answer the below questions when the subject is inhaled.21- What will be the resistance value in the strain gauge A, RA ?22- What will be the resistance value in the strain gauge B, Rs ?23- What will be the voltage difference Vg-VA ?24- What will be the amplifier output Vo1 ?StrainGauge AStrainGauge BR2R4VA1RARsRCVoiRpVccRBRORsR2R4VB23.

1. Consider your roll number the last digit to be 02. The value of change is resistance is given…

Two strain gauges with a gauge factor K (which will be the last 2 digits of your student number) are placed on the chest and belly (diaphragm) area of a subject as shown in below figure. The gauges have an initial resistance of 1000 and they are connected to the given Wheatstone Bridge circuit. And output of Wheatstone Bridge circuit is connected to an instrumentation amplifier as shown in below figure. The gauges measures the extension of chest and belly according to respiration. The resistance values for amplifier is given below. Rs = R2 = R4 = 1kN, R. = 1000, Rp = 5000, Vcc = 5V When the subject exhaled the strain gauges are relaxed and when the subject inhaled strain gauge A is stretched 1% and B is stretched 2%. Answer the below questions when the subject is inhaled. 21- What will be the resistance value in the strain gauge A, RA ? 22- What will be the resistance value in the strain gauge B, Rs ? 23- What will be the voltage difference Va-Va ? 24- What will be the amplifier output Vo1 ? Strain Gauge A Strain Gauge B R2 R4 VA RA Rs RC Voi Rp Vcc RB RC Rs R2 R4 VB 2

Two strain gauges with a gauge factor K (which will be the last 2 digits of your student number) are placed on the chest and belly (diaphragm) area of a subject as shown in below figure. The gauges have an initial resistance of 1000 and they are connected to the given Wheatstone Bridge circuit. And output of Wheatstone Bridge circuit is connected to an instrumentation amplifier as shown in below figure. The gauges measures the extension of chest and belly according to respiration. The resistance values for amplifier is given below. Rs = R2 = R4 = 1kN, R. = 1000, Rp = 5000, Vcc = 5V When the subject exhaled the strain gauges are relaxed and when the subject inhaled strain gauge A is stretched 1% and B is stretched 2%. Answer the below questions when the subject is inhaled. 21- What will be the resistance value in the strain gauge A, RA ? 22- What will be the resistance value in the strain gauge B, Rs ? 23- What will be the voltage difference Va-Va ? 24- What will be the amplifier output Vo1 ? Strain Gauge A Strain Gauge B R2 R4 VA RA Rs RC Voi Rp Vcc RB RC Rs R2 R4 VB 2

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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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

Question

Two strain gauges with a gauge factor K (which will be the last 2 digits of your student number) are placed
on the chest and belly (diaphragm) area of a subject as shown in below figure. The gauges have an initial
resistance of 1000 and they are connected to the given Wheatstone Bridge circuit. And output of
Wheatstone Bridge circuit is connected to an instrumentation amplifier as shown in below figure. The
gauges measures the extension of chest and belly according to respiration. The resistance values for
amplifier is given below.
Rs = R, = R4 = 1kN, R. = 1000, Rp = 5000 , Vcc = 5V
When the subject exhaled the strain gauges are relaxed and when the subject inhaled strain gauge A is
stretched 1% and B is stretched 2%. Answer the below questions when the subject is inhaled.
21- What will be the resistance value in the strain gauge A, RA ?
22- What will be the resistance value in the strain gauge B, Rs ?
23- What will be the voltage difference Vg-VA ?
24- What will be the amplifier output Vo1 ?
Strain
Gauge A
Strain
Gauge B
R2
R4
VA
1
RA
Rs
RC
Voi
Rp
Vcc
RB
RO
Rs
R2
R4
VB
2
3.

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