Introduction to electrical_engineering_from_roy_2009

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Introduction to electrical_engineering_from_roy_2009

  1. 1. Electrical Engineering Electrical EngineeringElectrical Engineering Electrical Engineering Overview DEPARTMENT OF ELECTRICAL Wireless EEG system with internet/cell phone /GPS data transfer Capability Wireless EEG system with internet/cell phone /GPS data transfer Capability
  2. 2. Electrical Engineering Why does the world need electrical engineers? There are many challenges in facing the world for sustainable and enhanced quality of life: Transportation Why does the world need electrical engineers? Electrical Engineering Overview Transportation Energy Communication Medicine Housing 2
  3. 3. Electrical Engineering Why does the world need electrical engineers? Electrical Engineers are needed for creating electrical and electronic solutions to these challenges! Electrical Engineering Overview For example….. 3
  4. 4. Electrical Engineering Transportation Power Semiconductors and energy storage technology – Plug-in Hybrid Electric Vehicles (IEEE Spectrum May 2008) Electrical Engineering Overview (IEEE Spectrum May 2008) 4
  5. 5. Electrical Engineering Energy: Photovoltaic Materials Electrical Engineering Overview Renewable Energy – Solar Power from Photovoltaic Materials Wind Power from Generators (IEEE Spectrum, August 2008) 5
  6. 6. Electrical Engineering Communication Integrated Circuits and RF/Microwave Electronics Apple iPHONEiPHONE Electrical Engineering Overview iPHONEiPHONE (IEEE Spectrum October 2007) 6
  7. 7. Electrical Engineering Medical Technologies Implantable radiation sensors to improve cancer therapy Electromagnetic imaging Electrical Engineering Overview (IEE Spectrum June 2008) 7
  8. 8. Electrical Engineering Housing Electronic Systems: energy management Telecommunications security Electrical Engineering Overview security entertainment (IEEE Spectrum May 2008) 8
  9. 9. Electrical Engineering What can you do as an electrical engineering student? Start designing and building electronic systems! Electrical Engineering Electrical Engineering Overview Start designing and building electronic systems! For example… 9
  10. 10. Electrical Engineering Razor-Lazer Music Transmitter Designed and Built by Students Eric A. DeCuir Jr. and David Fryauf Electrical Engineering Overview 10 ••Project Goal:Project Goal: •Transmit stereo music over a laser beam to a remote stereo receiver ••How it works:How it works: •MP3 player outputs varying electrical signal from mini headphone jack this electrical signal is converted into amplitude modulated 635nm laser light via an audio transformer silicon phototransistor converts modulated laser light back into varying electrical signal transducer (speaker) converts electrical energy back into sound by compressing the air in front of a moving cone creating what our ear interprets as sound.
  11. 11. Electrical Engineering Razor-Lazer Music Transmitter Lasers Silicon Music out 3V 9V Audio transformer (1000/8) LED* Electrical Engineering Overview Lasers Silicon photodiodes Music in 3V 9V Audio transformer (1000/8) LED* * LED protects laser diode from voltage spikes
  12. 12. Electrical Engineering Electrical engineers have the opportunity of:Electrical engineers have the opportunity of: -- Advancing the state of the art in any of theAdvancing the state of the art in any of the above fieldsabove fields -- Having a very rewarding professional careerHaving a very rewarding professional career Electrical Engineering Electrical Engineering Overview -- Having a very rewarding professional careerHaving a very rewarding professional career -- Average entry salary of $56,512Average entry salary of $56,512 -- Entering the job market at the right timeEntering the job market at the right time 12
  13. 13. Electrical Engineering •• Texas Instruments, National Semiconductor, Micron,Texas Instruments, National Semiconductor, Micron, IntelIntel •• National Labs (Sandia, NREL, …)National Labs (Sandia, NREL, …) •• Government (NSA, Pine Bluff Arsenal)Government (NSA, Pine Bluff Arsenal) SWEPCO (AEP), SPP, OG&ESWEPCO (AEP), SPP, OG&E EE Employers Electrical Engineering Overview •• SWEPCO (AEP), SPP, OG&ESWEPCO (AEP), SPP, OG&E •• Northrop Grumman, RaytheonNorthrop Grumman, Raytheon •• Small BusinessesSmall Businesses 13
  14. 14. Electrical Engineering 19 Faculty Members19 Faculty Members Fellows of the Institute of Electrical and ElectronicsFellows of the Institute of Electrical and Electronics EngineeringEngineering Distinguished Professor Samir El-Ghazaly Professor Len Schaper Fellows of Other InstitutesFellows of Other Institutes Professor Simon Ang EE Department Electrical Engineering Overview Professor Simon Ang Distinguished Professor Vasu Varadan Distinguished Professor Vijay Varadan Dr. Samir ElDr. Samir El--Ghazaly (elGhazaly (el--ghazal@uark.edu)ghazal@uark.edu) Department Head 3217 Bell Engineering Dr. Juan Carlos Balda (jbalda@uark.edu)Dr. Juan Carlos Balda (jbalda@uark.edu) Associate Department Head 3217 Bell Engineering 14
  15. 15. Electrical Engineering Many opportunities to develop leadership and practical engineering experience: • IEEE • HKN Student Activities Electrical Engineering Overview • HKN • IMAPS • IEEE CPMT • Solar Boat (Annual Solar Splash Competition) 15
  16. 16. Electrical Engineering The Department has dedicated more than $55K in scholarship funds for the 2008-2009 FEP class. Several scholarships will be available for top EE Scholarships Electrical Engineering Overview Several scholarships will be available for top students, typically $1000 to $2000 per year • Up to 3 years provided that the student maintains required academic standards. 16
  17. 17. Electrical Engineering EE faculty members normally provide opportunities for undergraduate to engage in research work at their laboratories. These opportunities not only enhance your EE Undergrad Research Electrical Engineering Overview These opportunities not only enhance your undergraduate learning experience but: (1) you could use this work up to 6 hours of ELEG6 hours of ELEG technical electivestechnical electives, and (2) Many cases you are areare paid for conductingpaid for conducting research!research! 17
  18. 18. Electrical Engineering Dr. SimonDr. Simon Ang’sAng’s ResearchResearch ELEG 2113ELEG 2113 Brain Probes and Sensors E-coli bacteria detection e-coli Olfactory bulb recording in rat Electrical Engineering Overview Microsystems Microthruster for micro spacecraft Nano-Spring Nano-Electrical Contact
  19. 19. Electrical Engineering Medical ImagingMedical Imaging Microwave Techniques for Breast CancerMicrowave Techniques for Breast Cancer Dr. Magda ElDr. Magda El--ShenaweeShenawee ELEG 3133ELEG 3133 –– ELEG 3703ELEG 3703 TransmittingTransmitting AntennaAntenna ReceivingReceiving AntennaAntenna BreastBreast TumorTumor Electrical Engineering Overview DEPARTMENT OF ELECTRICAL Radar SystemRadar System Wave penetrationWave penetration∝ 1/(frequency, tissue conductivity)1/(frequency, tissue conductivity) High frequency waveHigh frequency wave Low frequency waveLow frequency wave Not goodNot good GoodGood GoodGood Not goodNot good
  20. 20. Electrical Engineering Semiconductor NanostructuresSemiconductor Nanostructures Dr. Omar ManasrehDr. Omar Manasreh ELEG 3213ELEG 3213 To deep space applications Electrical Engineering Overview DEPARTMENT OF ELECTRICAL From mine detection using giant rats To 15 or more color detection systems using lighter weight and smaller size satellites 12 11 10 9 8 800 900 1000 1100 1200 1300 1400 0 1x10 3 2x10 3 3x10 3 4x10 3 5x10 3 Wavelength (µm) VB =0.6 V Photoresponse(arbit.units) Wavenumber (cm -1 ) T=7.0K VB =2.0 V Sample No. SC-QWIP bottom Stack GaAs/Al0.09 Ga0.91 As Multi-Color Focal Plane Arrays Infrared Detectors Based on Semiconductor Nanostructures Nanocrystals
  21. 21. Electrical Engineering MixedMixed--Signal ApplicationsSignal Applications Dr. Alan MantoothDr. Alan Mantooth ELEG 3223ELEG 3223 Electrical Engineering Overview DEPARTMENT OF ELECTRICAL
  22. 22. Electrical Engineering Smart Vest with CNT NanoSmart Vest with CNT Nano--Fibers andFibers and SensorsSensors Dr. Vijay VaradanDr. Vijay Varadan Aligned multiwalled carbon nanotubes Vegus nerve stimulator Electrical Engineering Overview DEPARTMENT OF ELECTRICAL Wireless smart vest for ECG, EKG, Respiration etc., and for blood flow , oxygen and viscosity of blood measurement
  23. 23. Electrical Engineering What’s in your cell phone?What’s in your cell phone? Dr. Len SchaperDr. Len Schaper ELEG 3913ELEG 3913 Electrical Engineering Overview DEPARTMENT OF ELECTRICAL There may be only 1010 –– 15 integrated circuits15 integrated circuits on both sides of a cell phone printed circuit board, but several hundred passive componentshundred passive components (resistors and capacitors) highlighted in yellow. Research work at UAResearch work at UA is finding manufacturing processes to build these passive components on a layer .002” thick within the circuit board, freeing up space on the front and back of the board for more ICs andfreeing up space on the front and back of the board for more ICs and additional functionsadditional functions. In cell phones, Thin is In!
  24. 24. Electrical Engineering Embedded Systems at UAEmbedded Systems at UA Dr. Scott SmithDr. Scott Smith ELEG 2903, ELEG 2913ELEG 2903, ELEG 2913 Embedded systems are ubiquitous in our daily lives • e.g. cell phone, MP3 player, PDA, GPS receiver, video game systems Bay Area Rapid Transit (BART) Train Control System Electric Wheelchair Capable of Autonomously Traversing Stairs Fishing System for Tetraplegics Electrical Engineering Overview DEPARTMENT OF ELECTRICAL
  25. 25. Electrical Engineering Radio Frequency Identification (RFID)Radio Frequency Identification (RFID) Dr. Kazem SohrabyDr. Kazem Sohraby ELEG 3123, ELEG 3133ELEG 3123, ELEG 3133 Electrical Engineering Overview DEPARTMENT OF ELECTRICAL Main Functions • Reader-to-Tag • Tag-to-Reader • Reader-to-Server • Server-to-Reader Basic Operations to Identify Tags RFID System Architecture
  26. 26. Electrical Engineering Microwave & Optics Laboratory for Imaging & Characterization Dr. Vasundara VaradanDr. Vasundara Varadan Research Areas Applications Negative Property MW Materials Collision Avoidance Automotive Radars, Stealth Materials, Cloaks for ‘Invisibility”, LTCC fabrication of metamaterials Broadband MW Characterization 5-110 GHz, -40°C-1500°C, MW ceramics, biological tissues, phantoms MW Imaging Early detection of Breast Cancer Non-Destructive Evaluation (NDE) Non-contact security screening for detection of objects concealed under clothes & footwear - protects privacy of airport passengers!! Embedded Sensor Systems Self-contained, compact point of care medical monitoring systems - cough, pulse, blood pressure, respiration Electrical Engineering Overview - cough, pulse, blood pressure, respiration Fully automated computer controlled imaging, scanning, characterization. MW characterization of critical MW devices, antenna substrates, space tiles, shielding & radar absorbing materials, normal and cancerous breast tissue phantoms, etc. Excellent opportunities for undergraduate research, international summer research programs
  27. 27. Electrical Engineering Power Electronics and Power SystemsPower Electronics and Power Systems Dr. Juan Carlos Balda,Dr. Juan Carlos Balda, Dr. Alan Mantooth, Dr. Roy McCannDr. Alan Mantooth, Dr. Roy McCann Electrical Engineering Overview DEPARTMENT OF ELECTRICAL www.climatetechnology.gov/library/2005/tech-options/tor2005-135.pdf
  28. 28. Electrical Engineering QUESTIONS?QUESTIONS? www.ee.uark.eduwww.ee.uark.edu EE Contact Electrical Engineering Overview www.ee.uark.eduwww.ee.uark.edu --oror googlegoogle “electrical“electrical engineering university ofengineering university of arkansasarkansas”” 28
  29. 29. Electrical Engineering Freshman Year 1 GNEG 1111 Intro to Engineering I 3 GNEG 1121 Intro to Engineering II 3 ENGL 1013 Composition I 4 MATH 2564 Calculus II 3 CHEM 1103 University Chemistry I 4 XXXX XXX4 Freshman Science Elective 4 PHYS 2054 University Physics I 3 XXXX XXX3 University Core Elective 4 MATH 2554 Calculus I 3 ENGL 1023 Technical Composition II 15 semester hours 15 semester hours Sophomore Year Electrical Engineering Overview 29 Sophomore Year 3 ELEG 2903 Digital Design I 3 CSCE 2003 Programming Foundations I 0 ELEG 2900L Digital Design I Lab 1 CSCE 2001L Prog. Found. I Lab 3 ELEG 2103 Electric Circuits I 3 ELEG 2113 Electric Circuits II 1 ELEG 2101L Electric Circuits I Lab 1 ELEG 2111L Electric Circuits II Lab 4 MATH 2574 Calculus III 3 ELEG 2913 Digital Design II 4 XXXX XXX4 Sophomore Science Elective 0 ELEG 2910L Digital Design II Lab 4 MATH 3404 Differential Equations 3 History Government Requirement 15 semester hours 18 semester hours
  30. 30. Electrical Engineering Junior Year 3 ELEG 3123 Systems and Signals 3 ELEG 3223 Electronics II 1 ELEG 3121L System & Signal Lab 1 ELEG 3221L Electronics II Lab 3 ELEG 3213 Electronics I 3 ELEG 3303 Energy Conversion 1 ELEG 3211L Electronics I Lab 1 ELEG 3301L Energy Conversion Lab 3 ELEG 3923 Microprocessor Design 3 ELEG 3703 Electromagnetics 0 ELEG 3920L Microprocessor Design Lab 3 Humanities/Social Science Elective 3 CSCE 2013 Programming Foundations II 1 CSCE 2011L Prog. Foundations II Lab Electrical Engineering Overview 30 1 CSCE 2011L Prog. Foundations II Lab 3 Math/Science elective 18 semester hours 14 semester hours Senior Year 1 ELEG 4061 EE Design I 1 ELEG 4071 EE Design II 3 ELEG 4143 Stochastic Signal Processing 6 Electrical Eng Technical Elective 3 Electrical Engineering Technical Elective 3 Technical Elective 3 Engineering Science Elective 3 Upper-level humanities/Social Science Elective 3 Technical Elective 3 Humanities/Social Science Elective 3 Upper-level Hum/Social Science Elective 16 semester hours 16 semester hours

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