# Transducers

Instrumentation is the art and science of measuring and controlling different variables such as flow, level, temperature, angle, displacement etc. A basic instrumentation system consists of various devices. One of these various devices is a transducer. A transducer plays a very important role in any instrumentation system.

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An electrical transducer is a device which is capable of converting the physical quantity into a proportional electrical quantity such as voltage or electric current. Hence it converts any quantity to be measured into usable electrical signal. This physical quantity which is to be measured can be pressure, level, temperature, displacement etc. The output which is obtained from the transducer is in the electrical form and is equivalent to the measured quantity. For example, a temperature transducer will convert temperature to an equivalent electrical potential. This output signal can be used to control the physical quantity or display it.

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Chapter 1

### Prerequisite & Transducer Basics

1.1 Prerequisite measurements and operational amplifier concepts

1.2 Transducer Basics

1.3 Gate problem 1.1 & 1.2

1.4 potentiometer

1.5 Inductive Transducers ( LVDT)

1.6 Capacitive Transducers

1.7 Gate problems on Capacitive Transducers

Chapter 2

### Strain gauge & Torque measurement, temperature measurement

2.1  Strain gauge basics

2.2  Strain gauge signal conditioning

2.3  Force & torque measurement

2.4  Temperature measurement - 1

2.5  Temperature measurement - 2

2.6  Temperature measurement - 3

2.7  Temperature measurement - 4

Chapter 3

### Pressure & Level measurement

3.1  Pressure measurement basics & manometer

3.2  Gate Problems on manometer

3.3  Mechanical manometer ( Ring Type & Bell Type manometer)

3.4  Elastic Pressure Sensor & High Pressure measurement

3.5  Vacuum measurement + Gate Questions

3.6  Level measurement ( Direct Method)

Chapter 4

### Flow Measurement

4.1 Flow Measurement + basics + Characterization of flow

4.2 Differential pressure flow meters ( venturi criteria meter )

4.3  Problems On Differential Pressure Flow meter

4.4  Pitot static tube rotameter

4.5  Variable area & Variable Pressure Flow meter

4.6  Indirect Flow Meters I : Electromagnetic Flow Meter & Turbine flow meter

4.7  Indirect Flow Meters II : Ultrasonic flow meter & Hot Wire Anemometer

4.8  GATE Problems

Chapter 5

### Miscellaneous measurement

5.1 velocity measurement Part - 1

5.2 velocity measurement Part - 2

5.3 Acceleration measurement

5.4 Gate Questions

5.5 PH measurement

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### FAQ's

The validity for These videos will be till 30th April 2020 irrespective of date of Buying. You may listen to the videos n number of Times with a good internet connection anytime anywhere.