introduction to labs by behzad malek. lab sessions lab: tuesday-session 1 (cby b302: 13:30-14:30);...
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ELG2336Introduction to Labs
By Behzad Malek
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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 [email protected] Behzad [email protected]
4 Labs 15% of the final mark Lab reports due date
One week after each lab Two weeks for each lab
General info
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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 !
In the Lab
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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
In the Lab
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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.
Lab reports format
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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!
Lab reports format
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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!!!
Lab reports graphs
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Electronically via email by midnight the week after each lab
.doc or .docx only Zero tolerance for copying results
Lab reports submission
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Breadboard
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Resistance (ohm Ω) Two terminal electrical component R=V/I (volt/amp)
Resistor
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Series/ Parallel Connection
Series
Parallel
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Series Connection on BB
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Parallel Connection on BB
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Series or Parallel?
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Power Supply
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Function GeneratorTo generate AC signals• Shape• Amplitude• Frequency
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Digital Millimetre Only DC (or rms) Voltmeter Ammeter Ohmmeter Short circuit check
Oscilloscope Voltage AC, also DC R = V/I I = V/R
Measurement Devices
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DMM
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DMM
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Measure Voltage
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Measure Current
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Measure Ohm
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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)
Capacitor
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Polar Capacitor
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Oscilloscope
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Cables vs. Probes
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Cables
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Coaxial Cable