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Transcript of Mechatronics lect1
MechatronicsEEN-021
BYPrashant Mani Tripathi
Introduction
Cont...
• The word, mechatronics is composed of mecha from mechanics and tronics from electronics.
Mechatronicsmecha
tronicsEletronics
Mechanics
Mechatronics: Working Definition for us
• Mechatronics is the synergistic integration of sensors, actuators, signal conditioning, power electronics, decision and control algorithms, and computer hardware and software to manage complexity, uncertainty, and communication in engineered systems.
Elements of Mechatronics—Electromechanical
• Electromechanical elements refer to:– Sensors
• A variety of physical variables can be measured using sensors, e.g., light using photo-resistor, level and displacement using potentiometer, direction/tilt using magnetic sensor, sound using microphone, stress and pressure using strain gauge, touch using micro-switch, temperature using thermistor, and humidity using conductivity sensor
Cont.…– Actuators
• DC servomotor, stepper motor, relay, solenoid, speaker, light emitting diode (LED), shape memory alloy, electromagnet, and pump apply commanded action on the physical process
• IC-based sensors and actuators (digital-compass, -potentiometer, etc.).
Flexiforce Sensor
DC Motor
Elements of Mechatronics—Electrical/Electronic
• Electrical elements refer to:– Electrical components (e.g., resistor (R), capacitor (C), inductor (L),
transformer, etc.), circuits, and analog signals
• Electronic elements refer to:– analog/digital electronics, transistors, thyristors, opto-isolators,
operational amplifiers, power electronics, and signal conditioning
• The electrical/electronic elements are used to interface electro-mechanical sensors and actuators to the control interface/computing hardware elements
Micro to Macro Applications
Mechatronics Systems
MEMS
Consumer Electronics
Tools
Computers
Cars
Stealth Bomber
High Speed Trains
CNC BendingComputer numerical control
•Fully automated bending: load sheet metal and the finished bent parts come out•Can bend complex shapes
Mechatronics Systems-Manufacturing Applications-
•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
Mechatronics Systems-Transportation Applications-
JR-MaglevTop Speed: 574 km/h (357 mph)Country: Japan
TransrapidTop Speed: 550 km/h (340 mph)Country: German
Magnetic Levitation
-Transportation Applications-
Advantages•Simple and intuitive personal transportation device
Systems Uses•Tilt and pressure sensors •Microcontroller•Motors•Onboard power source
Segway
Mechatronics Systems
-Smart Robotics Application-
System Can•Carry 340 lb•Run 4 mph•Climb, run, and walk•Move over rough terrain
BigDog
Advantages•Robot with rough-terrain mobility that could carry equipment to remote location.
Mechatronics Systems
-Space Exploration Application-
System Can•Collect specimens•Has automated onboard lab for testing specimens
Advantages•Robot that can travel to other planets and take measurements automatically.
Mechatronics Systems
Phoenix Mars Lander's
-Medical Applications-
Prosthetics•Arms, Legs, and other body parts can be replaced with electromechanical ones.
Mechatronics Systems
-Medical Applications-
•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.
Mechatronics Systems
Pace Maker
Implantable Defibrillation
-Defense Applications-
•Advanced technology is making our soldiers safer.•Some planes can now be flown remotely.
Unmanned Aerial Vehicle
Stealth Bomber
Mechatronics Systems
-Sanitation Applications-
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
Mechatronics Systems
-Sanitation Applications-
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
Mechatronics Systems
Smoke Detector System
Mechatronics Systems-Smart Home Applications-
Complete Definition Advanced Step in Innovative MObility