Introduction to Electrical Engineering Everything you always wanted to

Introduction to Electrical Engineering Everything you always wanted to know but were afraid to ask M. Holtzman & B. Pejcinovic

What is Engineering? Engineering is the discipline and profession of applying technical and scientific knowledge and utilizing natural laws and physical resources in order to design and implement materials, structures, machines, devices, systems, and processes that realize a desired objective and meet specified criteria. Wikipedia The profession in which knowledge of the mathematical and natural sciences, gained by study, experience and practice, is applied with judgment to develop ways to use, economically, the materials and forces of nature for the benefit of mankind. ABET

Some Quotes “Engineering is not merely knowing and being knowledgeable, like a walking encyclopedia; engineering is not merely analysis; engineering is not merely the possession of the capacity to get elegant solutions to nonexistent engineering problems; engineering is practicing the art of the organized forcing of technological change. Engineers operate at the interface between science and society. ” Dean Gordon Brown “Scientists explore what is; engineers create what has not been.” Theodore Von Karman “Engineering is sometimes thought of as an applied science, but engineering is far more. The essence of engineering is design and making things happen for the benefit of humanity.” Martha Sloan, Am. Assoc. Engr. Soc. Chair “For a list of all the ways technology has failed to improve the quality of life, please press three.” Alice Kahn

What Makes an Engineer? Curiosity about how things work The desire to solve interesting problems Interest in design and experimentation Some affinity for using math and science Good teamwork and communication skills Creative and adaptable Eager to keep learning new things You don’t have to be a genius to be an Engineer

Engineering Jobs Research Development Testing Design Analysis Systems Manufacturing Operations Tech support Sales Consulting Management

Engineering Fields Aerospace Agricultural Biomedical Chemical Civil Electrical Environmental Industrial Materials Mechanical Mining Nuclear Petroleum Power Systems

Some Examples Aerospace engineers might work on spacecraft, aircraft or missiles. They could be concerned with aerodynamics, structures or propulsion systems. For example, a team of design engineers at an aerospace company is designing an aircraft engine fan blade. They run detailed computer analyses and do on-engine testing. Reliability, efficiency, cost and weight are all design constraints. The goal is to push current design barriers to optimize these constraints, probably making some trade-offs between efficiency, cost and weight. The final design must be certified by the FAA.

More examples Test engineers design and perform tests to verify integrity, reliability and quality of products before they are introduced to the public. For example, test engineers use a “chicken gun” to fire birds at the windshields of planes and high-speed train locomotives to ensure the windshields can withstand a high-speed impact. Biomedical engineers help develop artificial limbs and joints to provide mobility to the physically impaired. They also develop mechanical and electrical devices to aid in diagnosis and treatment. http://online.wsj.com/article/SB1000142405270230479 5804579097570008603700.html

What about Electrical Engineering? Computers Communications Circuits and devices Control Instrumentation Signal processing Bioengineering Power

Computers Computer engineers design and develop computer hardware Also design and develop software that controls or interfaces the computer and its components such as operating systems and compilers Work on computer architecture to improve speed and efficiency Also computer networks, security, artificial intelligence, voice recognition, etc.

Communications – satellites, GPS, fiber optics, lasers, wireless Circuits and devices– micro (and nano) technology, circuit design, device fabrication and packaging, MEMS, photovoltaics Control – almost all machines and plants have control systems to monitor and self-correct processes.

Instrumentation – measurement devices (temperature, pressure, flow, etc.), systems to transmit information (telemetry) Signal processing – signals are electronically filtered, amplified or otherwise modified, e.g., active noise control Bioengineering – develop devices to aid in diagnosis and treatment, e.g., MRI, CAT scans, pacemakers, cardiac monitors, prosthetics Power – production and distribution of electrical power, alternative energy technologies

Engineering Job Market Engineers make some of the highest amounts of any career with a 4-year degree Employers want the “total package” – graduates who are not just academically well-prepared, but have excellent communication and interpersonal skills, teamwork and leadership experience and technical and computer proficiency Salary data from NACE report 2014

Top 20 Majors by Salary Potential Major 1 Petroleum Engineering 2 Actuarial Mathematics 3 Nuclear Engineering 4 Chemical Engineering 5 Aerospace Engineering 6 - tie Electrical Engineering (EE) 6 - tie Computer Engineering (CE) 8 Computer Science (CS) 9 Physics 10 Mechanical Engineering (ME) 11 Materials Science & Engineering 12 Software Engineering 13 Statistics 14 Government 15 Economics 16 Applied Mathematics 17 Industrial Engineering (IE) Management Information 18 Systems (MIS) 19 Biomedical Engineering (BME) 20 Civil Engineering (CE) Starting Salary 103,000 58,700 67,600 68,200 62,800 64,300 65,300 59,800 53,100 60,900 62,700 60,500 52,500 43,200 50,100 52,800 61,100 Mid-Career Salary 160,000 120,000 117,000 115,000 109,000 106,000 106,000 102,000 101,000 99,700 99,500 99,300 98,900 97,100 96,700 96,200 94,400 53,800 92,200 59,000 54,300 91,700 91,100

So Why Be an Engineer? Great variety and challenge in your work Build or improve lasting and tangible products Use your creativity to solve problems and help humankind Good salary and job prospects Is it fun and do you like it?

Individual assignment You will explore one of these areas (fields) of ECE in more depth Read the assignment carefully and start right away Make sure that you write about something that you care about, even if that is not what you will pursue as a career