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ELG2336

ELG2336. Introduction to Labs By Behzad Malek. General info. Lab sessions Lab: Tuesday-Session 1 (CBY B302: 13:30-14:30); Session 2 (CBY B302: 14:30-15:30) (Starts Jan 13 2008) Possibly extending 15 min TAs Ahmad abarghout@mcrlab.uottawa.ca Behzad bmalek@site.uottawa.ca

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ELG2336

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  1. ELG2336 Introduction to Labs By BehzadMalek

  2. General info • Lab sessions • Lab: Tuesday-Session 1 (CBY B302: 13:30-14:30); Session 2 (CBY B302: 14:30-15:30) (Starts Jan 13 2008) • Possibly extending 15 min • TAs • Ahmad abarghout@mcrlab.uottawa.ca • Behzadbmalek@site.uottawa.ca • 4 Labs 15% of the final mark • Lab reports due date • One week after each lab • Two weeks for each lab

  3. In the Lab • Three students in the same group • Find partners before you come to the lab • From the same session • Your responsibility if change sessions • Attendance for all group members • We sign the experiment results sheet as attendance • You have to two weeks to get your experiment results checked • If finish early, may skip the next week! • We are there to help, take advantage !

  4. In the Lab • 5-10 min tutorial • Arrive prepared • (Keep breadboard and return at the end!), or lose marks! • Power off the equipments • Clean your desk • Do not waste time • Make sure you sign before leaving

  5. Lab reports format • No copying from Lab Manual • 5 steps • Problem identification/ experiment goal (abstract) • Gathering information • Experiment • Implementation • Measurement • Multisim (software testing) – can be before the experiment! • Conclusions – explain sources of errors, findings, etc.

  6. Lab reports format • Focus on measurements • CALCULATE experiment errors • Accurate graphs • Name and unit on all axis • Hand drawn graphs have to make sense in scale • Answer all questions • I like tables! • I hate texts! • Concise yet Precise!

  7. Lab reports graphs • Experiments + multisim • Pictures from the screen • Save the graph • Or print screen, save in Paint then include in the lab report • Graphs from oscilloscope • Camera phones (take a shot) • Resolution to read the axis • Include selections or settings on the scope • Be scientific!!!

  8. Lab reports submission • Electronically via email by midnight the week after each lab • .doc or .docx only • Zero tolerance for copying results

  9. Breadboard

  10. Resistor • Resistance (ohm Ω) • Two terminal electrical component • R=V/I (volt/amp)

  11. Series/ Parallel Connection Series Parallel

  12. Series Connection on BB

  13. Parallel Connection on BB

  14. Series or Parallel?

  15. Power Supply

  16. Function Generator • To generate AC signals • Shape • Amplitude • Frequency

  17. Measurement Devices • Digital Millimetre • Only DC (or rms) • Voltmeter • Ammeter • Ohmmeter • Short circuit check • Oscilloscope • Voltage AC, also DC • R = V/I  I = V/R

  18. DMM

  19. DMM

  20. Measure Voltage

  21. Measure Current

  22. Measure Ohm

  23. Capacitor • Capacitance (farad) • i = C dv/dt • Reading capacitor • Pico farad 1e-12 (10^-12) • 151 = 150 pf • 105 = 10 x 10^5 pf = 1 uf • Polar capacitors • Look for sidebar (negative)

  24. Polar Capacitor

  25. Oscilloscope

  26. Cables vs. Probes

  27. Cables

  28. Coaxial Cable

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