Instrumentation I Notes – Fourth Semester IOE Notes

1. Instrumentations Systems (2 hours)

1.1 Functions of components of instrumentation system introduction, signal processing , Signal transmission ,output indication

1.2 Need for electrical, electronics, pneumatic and hydraulic working media systems and conversion devices

1.3 Analog and digital systems

2. Theory of measurement (10 hours)

2.1 Static performance parameters ‐ accuracy, precision, sensitivity, resolution and linearity

2.2 Dynamic performance parameters ‐ response time, frequency response and bandwidth

2.3 Error in measurement

2.4 Statistical analysis of error in measurement

2.5 Measurement of voltage & current (moving coil & moving iron instruments)

2.6 Measurement of low, high & medium resistances

2.7 AC bridge & measurement of inductance and capacitance

3. Transducer (8 hours)

3.1 Introduction

3.2 Classification

3.3 Application

3.3.1 Measurement of mechanical variables, displacement, strain. velocity. acceleration and vibration

3.3.2 Measurement of process variables ‐ temperature pressure, level, fluid flow, chemical constituents in gases or liquids, pH and humidity.

3.3.3 Measurement of bio‐physical variables blood pressure and

myoelectric potentials

4. Electrical Signal Processing and transmission (6 hours)

4.1 Basic Op‐amp characteristics

4.2 Instrumentation amplifier

4.3 Signal amplification, attenuation, integration, differentiation, network isolation, wave shaping

4.4 Effect of noise, analog filtering, digital filtering

4.5 Optical communication, fibre optics, electro‐optic conversion devices

5. Analog ‐ Digital and Digital ‐ Analog Conversion (6 hours)

5.1 Analog signal and digital signal

5.2 Digital to analog convertors ‐ weighted resistor type, R‐2R ladder type, DAC Errors

5.3 Analog to digital convertors ‐ successive approximation type, ramp type, dual ramp type, flash type, ADC errors

6. Digital Instrumentation (5 hours)

6.1 Sample data system, sample and hold circuit

6.2 Components of data acquisition system

6.3 Interfacing to the computer

7. Electrical equipment (8 hours)

7.1 Wattmeter

7.1.1 Types

7.1.2 Working principles

7.2 Energy meter

7.2.1 Types

7.2.2 Working principles

7.3 Frequency meter

7.3.1 Types

7.3.2 Working principles

7.4 Power factor meter

7.5 Instrument transformers

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Diwas Pandey
Diwas Pandey
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