Introduction to Mechatronics. Introduction Mechanical + Electronics.

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Presentation transcript:

Introduction to Mechatronics

Introduction Mechanical + Electronics

Introduction Mechanical + Electronics= MechaTronics

Mechatronics The term mechatronics is used to denote a rapidly developing, interdisciplinary field of engineering dealing with the design of products whose function relies on the integration of mechanical and electronic components coordinated by a control architecture. The word mechatronics was coined in Japan in the late 1960s, spread through Europe, and is now commonly used in the United States.

What are the primary disciplines important in the design of mechatronic systems…?

◦ Mechanics, ◦ Electronics, ◦ Controls, and ◦ Computer engineering.

Expectations from a mechatronic system engineer He must be able to ◦ design and select ◦ analog and digital circuits, ◦ microprocessor-based components, ◦ mechanical devices, ◦ sensors and actuators, and ◦ controls so that the final product achieves a desired goal.

The qualities of mechatronic system designer He/she must be a generalist, Willing to seek and apply knowledge from a broad range of sources.

Examples of mechatronic systems An aircraft flight control and navigation system. Automobile air bag safety system and antilock brake systems. Automated manufacturing equipment such as robots. Numerically controlled (NC) machine tools. smart kitchen home appliances such as bread machines and clothes washing machines, and even toys.

Mechatronic system components

Inkjet printer components

Measurement Systems The transducer is a sensing device that converts a physical input into an output, usually a voltage. The signal processor performs filtering, amplification, or other signal conditioning on the transducer output. ◦ The term sensor is often used to refer to the transducer or to the combination of transducer and signal processor. Finally, the recorder is an instrument, a computer, a hard-copy device, or simply a display that maintains the sensor data for online monitoring or subsequent processing.

Digital Thermometer

THREADED DESIGN EXAMPLE DC motor power-op-amp speed controller. Aim: Controlling the rotational speed of a direct current (DC) permanent magnet motor. Major components used, ◦ Pot. ◦ LED. ◦ Microcontroller. ◦ Digital to Analog converter. ◦ Power amplifier. ◦ DC motor.

Functional diagram of the DC motor speed controller

Photograph of the power-amp speed controller

Stepper motor position and speed controller Aim: Controlling the position and speed of a stepper motor, which can be commanded to move in discrete angular increments. Main components used, ◦ Pot. ◦ Push Buttons. ◦ Toggle switch. ◦ LED. ◦ Microcontroller(PIC). ◦ Analog to Digital conveter. ◦ Stepper motor driver. ◦ Stepper motor.

Functional diagram of the stepper motor position and speed controller

Photograph of the stepper motor position and speed controller

DC motor position and speed controller Aim: Control of position and speed of a permanent magnet DC motor. Main components used,  Liquid crystal display (LCD).  H-bridge.  Digital encoder.  Microcontrollers(PIC) 2 nos.  Quadrature decoder and counter.

Functional diagram for the DC motor position and speed controller.

Photograph of the DC motor position and speed controller