# Mechatronics | TE Mech & Auto | SPPU | 2015 Course

**Mechatronics**, which is also called **mechatronic engineering**, is a multidisciplinary branch of engineering that focuses on the engineering of both electrical and mechanical systems, and also includes a combination of robotics, electronics, computer, telecommunications, systems, control, and product engineering.As technology advances over time, various subfields of engineering have succeeded in both adapting and multiplying. The intention of mechatronics is to produce a design solution that unifies each of these various subfields. Originally, the field of mechatronics was intended to be nothing more than a combination of mechanics and electronics, hence the name being a combination of both **mecha**nics and elec**tronics**; however, as the complexity of technical systems continued to evolve, the definition had been broadened to include more technical areas.

The word *mechatronics* originated in Japanese-English and was created by Tetsuro Mori, an engineer of Yaskawa Electric Corporation. The word *mechatronics* was registered as trademark by the company in Japan with the registration number of "46-32714" in 1971. However, afterward the company released the right of using the word to public, the word begun being used across the world. Nowadays, the word is translated in each language and the word is considered as an essential term for industry.

French standard NF E 01-010 gives the following definition: "approach aiming at the synergistic integration of mechanics, electronics, control theory, and computer science within product design and manufacturing, in order to improve and/or optimize its functionality".

Many people treat *mechatronics* as a modern buzzword synonymous with robotics and electromechanical engineering.

## Overview

Mechatronics

Abbreviation | MEX | ||||||
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Course | Third Year, Semester II | ||||||

Credits | TH- 03 OR-1 | ||||||

Examination Scheme
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Language | English |

## Table of Contents

## Course Objectives

- Understand key elements of Mechatronics system, representation into block diagram.
- Understand concept of transfer function, reduction and analysis
- Understand principles of sensors, its characteristics, interfacing with DAQ microcontroller
- Understand the concept of PLC system and its ladder programming, and significance of PLC systems in industrial application
- Understand the system modeling and analysis in time domain and frequency domain.
- Understand control actions such as Proportional, derivative and integral and study its significance in industrial applications

## Course Outcomes

After successfully completing the course students will be able to:

- Identification of key elements of mechatronics system and its representation in terms of block diagram
- Understanding the concept of signal processing and use of interfacing systems such as ADC, DAC, digital I/O
- Interfacing of Sensors, Actuators using appropriate DAQ micro-controller
- Time and Frequency domain analysis of system model (for control application)
- PID control implementation on real time systems
- Development of PLC ladder programming and implementation of real life system.

## Syllabus and Notes

### Unit 1: Introduction to Mechatronics, Sensors & Actuators

*[Main Page: *Introduction to Mechatronics, Sensors & Actuators*]*

Introduction to Mechatronics and its Applications;

Measurement Characteristics: Static and Dynamic;

**Sensors:**- Position sensors- Potentiometer, LVDT, incremental Encoder;
- Proximity sensors-Optical, Inductive, Capacitive;
- Temperature sensor-RTD, Thermocouples;
- Force / Pressure Sensors-Strain gauges;
- Flow sensors-Electromagnetic;

**Actuators:**- Stepper motor, Servo motor, Solenoids;

**Selection of Sensor & Actuator**

### Unit 2: Block Diagram Representation

*[Main Page: *Block Diagram Representation*]*

- Introduction to Mechatronic System Design; Identification of key elements of Mechatronics systems and represent into Block Diagram;
- Open and Closed loop Control System; Concept of Transfer Function;
- Block Diagram & Reduction principles;
- Applications of Mechatronic systems: Household, Automotive, Industrial shop floor.

### Unit 3: Data Acquisition

*[Main Page: *Data Acquisition*]*

**Introduction to Signal Communication & Types-**- Synchronous, Asynchronous,
- Serial, Parallel;
- Bit width, Sampling theorem, Aliasing, Sample and hold circuit, Sampling frequency;

- Interfacing of Sensors / Actuators to Data Acquisition system;
- 4 bit Successive Approximation type ADC;
- 4 bit R-2R type DAC;
- Current and Voltage Amplifier.

### Unit 4: Programmable Logic Control

*[Main Page: *Programmable Logic Control*]*

- Introduction to PLC; Architecture of PLC; Selection of PLC;
- Ladder Logic programming for different types of logic gates;
- Latching; Timers, Counter;
- Practical examples of Ladder Programming.

### Unit 5: Frequency Domain Modelling and Analysis

*[Main Page: *Frequency Domain Modelling and Analysis*]*

- Transfer Function based modeling of Mechanical, Thermal and Fluid system;
- Concept of Poles & Zeros; Stability Analysis using Routh Hurwitz Criterion;
- Bode Plots: Introduction to Bode Plot, Gain Margin, Phase Margin, Relative Stability Analysis,
- Frequency Domain Parameters-Natural Frequency, Damping Frequency and Damping Factor;
- Mapping of Pole Zero plot with damping factor, natural frequency and unit step response.

### Unit 6: Control System

*[Main Page: *Control System*]*

- Proportional (P), Integral (I) and Derivative (D) control actions;
- PI, PD and PID control systems in parallel form;
- Unit step Response analysis via Transient response specifications: Percentage overshoot, Rise time, Delay time, Steady state error;
- Manual tuning of PID control;
- Linear Quad
*ratic Control (LQR).*

MECHATRONICS LAB

### List of Practicals

- Measurement of Load / Force using a suitable sensor
- Measurement of Temperature using a suitable sensor
- Measurement of Position using a suitable sensor
- Demonstration of any one of the following applications:

Water Level Indicator

Bottle Filling Plant

Pick and Place Robot

Any other suitable application which comprises of components of Mechatronic system - Interfacing of suitable sensor with Data Acquisition system
- Ladder Diagram simulation, using suitable software, for logic gates
- Real time application of PLC using Ladder logic
- Real time control of Temperature / Flow using PID control
- Real time control of speed of DC motor using PID control
- PID control Design, Tuning using suitable Simulation Software
- Study of Modeling and Analysis of a typical Mechanical System (Estimation of poles, zeros, % overshoot, natural frequency, damping frequency, rise time, settling time)
- Case Study: Design of Mechatronic System (to be performed in a group of 4)

## Previous Years Questions

- MEX (2012-course) Question Papers
- Model Answer Paper: May 2017 Exam
- Exam Writing Tips

## Practical/ Oral Exam Questions

- MEX Exam Expected Oral Questions

## Assignments

Assignment 1 | Assignment 2 |

Assignment 3 | Assignment 4 |

Assignment 5 | Assignment 6 |

## Ask Queries

**Blogs**: Sujit Wagh**Forums**:

## References

**Created, Edited, Notes and developed by Prof Sujit Wagh, Team WikiNote, Vadgaon Bk, Pune****Wikipedia****UniPune website**WikiNote YouTube Channel Common to All Video's