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Objectives1. Understand key elements of Mechatronics system,
representation into block diagram
2. Understand concept of transfer function, reduction andanalysis
3. Understand principles of sensors, its characteristics,interfacing with DAQ microcontroller
4. Understand the concept of PLC system and its ladderprogramming, and significance of PLC systems in industrialapplication
5. Understand the system modeling and analysis in time domainand frequency domain.
6. Understand control actions such as Proportional, derivativeand integral and study its significance in industrialapplications.
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Outcomes
1. Identification of key elements of mechatronicssystem and its representation in terms of blockdiagram
2. Understanding the concept of signal processing and useof interfacing systems such as ADC, DAC, digital I/O
3. Interfacing of Sensors, Actuators using appropriate DAQmicro-controller
4. Time and Frequency domain analysis of system model (forcontrol application)
5. PID control implementation on real time systems
6. Development of PLC ladder programming andimplementation of real life system
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SyllabusUnit –I. Introduction to Sensors & Actuators
• Introduction to Mechatronics, Measurement characteristics: - Static and Dynamic
• Sensors:
Position Sensors: - Potentiometer, LVDT, Encoders;
Proximity sensors:- Optical, Inductive , Capacitive;
Motion Sensors:- Variable Reluctance;
Temperature Sensor: RTD, Thermocouples;Force / Pressure Sensors:- Strain gauges;
Flow sensors: - Electromagnetic
• Actuators: Stepper motor, Servo motor, Solenoids
• Selection of sensors
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What is Mechatronics?
✓ Mechatronics is the synergistic combination of Mechanicalengieering (“mecha”for mechanisms), Electronic engineering(“tronics” for electronics), and
software engineering.
✓ The word “Mechatronics” was first coined by Mr. Tetsuro Moria, a senior engineer of a Japanese company, Yaskawa, in 1969.
Cont………..
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Cont………..
✓It is a multi-disciplinary
approach to product and
manufacturing system design.
✓It involves application of
electrical, mechanical, control
and computer engineering to
develop products, processes and
systems with greater
flexibility, ease in redesign and
ability of reprogramming.
✓It concurrently includes all
these disciplines.
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Mechatronics system• A Mechatronics system
integrates various technologies involving
1.Sensors & Measurement systems,
2.Drives & Actuation systems (Mechanical /Pneumatics /Hydraulics),
3.Controlling system (microprocessor / microcontroller /PLC) and software engineering.
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Introduction-✓Mechatronics can also be termed as replacement of mechanics
with electronics or enhance mechanics with electronics.
✓With the help of microelectronics and sensor technology,
mechatronics systems are providing high levels of precision and
reliability.
For example, in modern automobiles, mechanical fuel injection
systems are now replaced with electronic fuel injection systems.
This replacement made the automobiles more efficient and less
pollutant.
✓By employment of reprogrammable microcontrollers or PLC, it is
now easy to add new functions and capabilities to a product or a
system.
✓Today’s domestic washing machines are “intelligent” and four-wheel
passenger automobiles are equipped with safety installations such as
air-bags, parking (proximity) sensors, antitheft electronic keys etc.
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Mechanism
Sensor
ElectronicDevice
Actuator
Physical SignalPhysical Signal
Electronic signalElectronic signal
Power
Power
Mechanical
Electronic
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WHY MECHATR
ONICS
LOW POWER, FAST,
MULTIPLE TASK
EASY TO USE AND CONTROL ACCURACY,
COMPLEX JOBS
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Objective of Mechatronics system
1. Integration of mechanical systems
with electronic and computer systems.
1. To improve efficiency of the system.
2. To reduce cost of production.
3. To achieve high accuracy and precision.
4. For easy control of the system.
5. Customer satisfaction and comfort.
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Mechatronics has evolved through the following stages:
1.Primary Level Mechatronics: Integrates electrical signaling with
mechanical action at the basic control level for e.g. fluid valves and relay
switches
2.Secondary Level Mechatronics: Integrates microelectronics into electrically
controlled devices for e.g. cassette tape player.
3.Tertiary Level Mechantronics: Incorporates advanced control strategy
using microelectronics, microprocessors and other application specific
integrated circuits for e.g. microprocessor based electrical motor used for
actuation purpose in robots.
4.Quaternary Level Mechatronics: This level attempts to improve smartness
a step ahead by introducing intelligence ( artificial neutral network and fuzzy
logic ) and fault detection and isolation ( F.D.I.) capability into the system.
eg: artificial neural network and fuzzy logic technologies.
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The function of Mechatronics engineer is:
Design and prepare the machines and Programming
them , by using the computer, control systems,
electrical and mechanical system .
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Elements of Mechatronics
Modeling
Analysis
Integrated
Design
testing
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Mechatronics system
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Example
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Mechatronics Applications-
✓ Smart consumer products: home security, camera,
microwave oven, toaster, dish washer, laundry washer-
dryer, climate control units, etc.
✓ Medical: implant-devices, assisted surgery, etc.
✓ Defense: unmanned air, ground, and underwater
vehicles, smart munitions, jet engines, etc.
✓ Manufacturing: robotics, machines, processes, etc.
✓ Automotive: climate control, antilock brake, active
suspension, cruise control, air bags, engine
management, safety, etc.
✓ Network-centric, distributed systems: distributed
robotics, tele robotics, intelligent highways, etc.
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Applications of Mechatronics Systems
MEMS
Tools Computers
Cars
Consumer Electronics
Stealth Bomber
High Speed Trains
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Mechatronics Systems in Manufacturing Applications
•Desktop sized Factory
•Build small parts with a small
factory
•Greatly reduces space, energy, and
materials
Micro Factory Micro Factory Drilling Unit
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Mechatronics Systems in Manufacturing Applications
CNC Bending
•Fully automated bending: load sheet metal and the finished
bent parts come out
•Can bend complex shapes
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Mechatronics Systems in Transportation Applications
Typical Applications •Brake-By-Wire system
•Steer-By-Wire
•Integrated vehicle dynamics
•Camless engines
•Integrated starter alternator
Automobiles
✓Reliability
✓Reduced weight
✓Fuel economy
✓Manufacturing flexibility
✓Design freedom
✓Advanced safety features
✓Cost
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✓Train Position and Velocity
constantly monitored from
main command center.
✓Error margin in scheduling
no more than 30 seconds
✓Fastest trains use magnetic
levitation
High Speed Trains
JR-Maglev
Top Speed: 574 km/h (357 mph)
Country: Japan
Transrapid
Top Speed: 550 km/h (340 mph)
Country: German
Magnetic Levitation
Transportation Applications
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AdvantagesSimple and intuitive personal transportation
device
Systems Uses✓Tilt and pressure sensors
✓Microcontroller
✓Motors
✓Onboard power source
Segway
Transportation Applications
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System Can•Carry 340 lb
•Run 4 mph
•Climb, run, and walk
•Move over rough terrain
Big Dog
AdvantagesRobot with rough-terrain mobility that could
carry equipment to remote location.
Smart Robotics Application
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Robots can vacuum floors and clean gutters so you don't have to.
Cleans Gutter Vacuum Floors
Smart Robotics Application
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Prosthetics
Arms, Legs, and other body parts can be
replaced with electromechanical ones.
Medical Applications
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Used by patients with slow or erratic heart
rates. The pacemaker will set a normal heart
rate when it sees an irregular heart rhythm.
Monitors the heart. If heart
fibrillates or stops completely it
will shock the heart at high voltage
to restore a normal heart rhythm.
Pace Maker
Implantable Defibrillation
Medical Applications
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•Advanced technology is making our soldiers safer.
•Some planes can now be flown remotely.
Unmanned Aerial Vehicle Stealth Bomber
Defense Applications
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System Uses✓Proximity sensors
✓Control circuitry
✓Electromechanical valves
✓Independent power source
Advantages•Reduces spread of germs by making device
hands free
•Reduces wasted water by automatically turning
off when not in use
Sanitation Applications
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Advantages•Reduces spread of germs by making device hands free
•Reduces wasted materials by controlling how much is
dispensed
Systems Uses✓Motion sensors
✓Control circuitry
✓Electromechanical actuators
✓Independent power source
Soap Dispenser
Paper Towel Dispenser
Sanitation Applications
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Smoke Detector System
Smart Home Applications
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Why Mechatronics ?Advantages 1.High level of integration.
2.Increased functionality and better design.
3.More use of electronics and software.
4.Use of artificial intelligence and intelligent process control
5.Assume responsibility for a process and operation with little
interference of operators.
6.Multisensory and programs environments.
7.High reliability and safety.
8.The products produced are cost effective and very good quality.
9. High degree of flexibility
10. Greater extent of machine utilization
11. Greater productivity
12. High life expected by proper maintenance.
13. The integration of sensor and control system in a complex
system reduces capital expenses
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Disadvantages of Mechatronics System
1.The initial cost is very high.
2.The complicated design and system.
3.The repair and maintenance in complex.
4.Its replacement is difficult, that it is difficult to change old
system to new system.
5. Imperative to have Knowledge of different engineering fields
for design and implementation.
6.Specific problem of various systems will have to be
addressed separately and properly
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CAREER PATHS – MECHATRONICS Engg
Automobile Medical
Robotics
Manufacturing
Aerospace
Material Processing