Love is when each person is more concerned for the other than for one's self. "David Frost"
Wednesday, 23 November 2016
World Fibonacci Day
Today is 23 November, and this day is considered as world Fibonacci day because, when we look at today's date, i.e. 11/23, it makes the first four digits of Fibonacci series. Fibonacci series starts with 1 and every next digit is the sum of previous two digits.
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| World Fibonacci Day |
Starting with the 1, we get next digit by adding previous two digits i.e. 0+1=1. Now we have two digits 1,1. Sum these two to get the next digit i.e. 1+1=2. The series becomes 1,1,2. Adding 1 and 2 we get the next digit i.e. 1+2=3. Now the series is 1,1,2,3. This is similar to today's date, i.e 11/23.
Happy Fibonacci Day to you!
Tuesday, 22 November 2016
Introduction to Mechatronics System Design
Mechatronics is the engineering field, a combination of major subfields i.e. mechanical engineering, electronics, computer engineering and control engineering. With the advancements in technology, the number of subfields multiply. Mechatronics engineers find ways to solve problem looking into every branch of science that is the reason why it has grown up so early after it's introduction. Recently to subfields i.e. telecommunications engineering and systems engineering are also included in this field.
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| Mechatronics System as a combination of mechanical systems, electronic systems, computer systems and control systems |
Mechanical engineering is used to design the structure of the system and drive mechanism. Electronic systems incorporates the electronic devices and circuits that will send and receive required signals in the form of electrical energy. Control systems define the stability and response of the system with respect to the given input. Computer systems convert the instruction written in the form of easy to understand program into the signals that drive the electronic circuits. Finally the output of the electronic circuit drives the mechanical systems.
Sensors and transducers are incorporated in the circuits to automate the systems. Artificially intelligent systems that take decisions on their own can also be made. Telecommunication engineering is applied to these systems for control the mechanisms from distant places. These are some of it's features but not all, there is lot more to explore in this field. This is our motivation to study this course.
Monday, 21 November 2016
Introduction to Applied Physics
Physics, like other branches of science, would not be explained without experimental observations and quantitative measurements. The core purpose of physics is to discover those limited number of those fundamental laws that are related to some natural phenomena, and to use them to create new theories that can help predict the consequences of other experiments. These fundamental laws are often in the form of some mathematical expressions, those expressions which help us understand and analyse the results of new experiments.
When an experiment cannot be explained using one or more than one of the existing theories, there is a need to devise or update the existing theories to the level where they can explain and analyse the experiment. Some theories have limitations while other which are general are not limited to some specifications. "For example, the laws of motion discovered by Isaac Newton (1642–1727) in the 17th century accurately describe the motion of bodies at normal speeds but do not apply to objects moving at speeds comparable with the speed of light." (Quoted From "Fundamentals of Physics" by Halliday and Resnick,) "In contrast, the special theory of relativity developed by Albert Einstein (1879–1955) in the early 1900s gives the same results as Newton’s laws at low speeds but also correctly describes motion at speeds approaching the speed of light." Here we say that Newton's theory was specific to the bodies moving with normal speeds, while, Einstein's theory was more general that can describe the motion of bodies moving with normal speeds as well as high speeds.
The physics which was developed before 20th Century is called Classical Physics. It includes all the experimental and theoretical work done in classical mechanics, electromagnetism and thermodynamics. The major contributions in the classical physics are provided by Newton. He is known to be one of the originators of the calculus.
The physics which began to develop near the end of 19th century is called Modern Physics. The motivation behind the discovery of this new era physics or modern physics was, that, many natural phenomena occurring in the nature were still undefined in scope of Classical Physics. This led to the development of new theories i.e. Theory of Relativity and Quantum Mechanics. Theory of relativity was developed by Einstein and it gave the scientists new ways to think about space, time, and energy. The quantum mechanics is the results of the hard work of number of distinguished scientists. It applies on both, microscopic and macroscopic worlds.
Thus, Physics is the core subject for many engineering courses, because it provides both experimental and mathematical explanation of the physical phenomena occurring in nature. It is important because it provides the explanation of other sciences as well. Our motivation towards studying this course is to understand and analyze many physical phenomena around us, which should be a hobby for an engineer.
Saturday, 12 November 2016
Introduction to Electric Circuits and Network Analysis
Electric circuit theory is the most fundamental and basic theory upon which electrical engineering and all of its branches(Power Electronics, Electric Machines, Control, Electronics, Communications, and instrumentation etc) are based. Power Electronics, Electric Machines, Control Systems, Instrumentation, and Electronic Devices are the core subjects for a mechatronics engineering student.
In mechatronics engineering, we are interested in controlling mechanisms(Mechanical) through the use of the some electronic devices and software program. While doing this we often come across the scenarios where we have to make meaningful interconnection of electronic devices to achieve the desired objective. Prior to the study the interconnections of electronic devices, it is necessary to study the interconnection of electrical devices.
The prime objective of interconnecting electrical devices with each other is to transfer the required amount of energy(electric) from one point to another. Interconnections made this way is is referred to as an electric circuit.
The prime objective of interconnecting electrical devices with each other is to transfer the required amount of energy(electric) from one point to another. Interconnections made this way is is referred to as an electric circuit.
An electric circuit is an interconnection of electrical elements.
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| A simple Electrical Circuit |
A simple electric circuit is shown above in the figure. In this course we will start from the basic and easy circuits and move towards more complex circuits. We will discuss in this course those techniques which will help us analyze the more complex circuits. Our objective in this course will be to discuss various network analysis techniques, which will tell us how the circuit responds when given a specific input.
