Lab HB18-12 Scope, Function Generator, Meter
Real Components      15 points
OEET 120

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 Connections
  1. Set the meter to AC volts
  2. Check to be sure the following is true:
    • The function generator's leads are connected to the function generator's 50 ohm output.
    • The function generator's offset knob is set to "no offset."
    • The input coupling for the channel 1 scope probes is set to DC.
    • The channel 1 scope probes is set at X1 (as opposed to X10).
    • The scope is set to use channel 1 only.
  3. Use a breadboard to make connections as follows:
    • Connect the scope probe, the function generator red lead, and the red meter lead.
    • Connect the scope ground clip, the function generator black lead, and the meter black lead.

Measurements
  1. Set the function generator for a 1kHz sine wave.
  2. Set scope channel 1 volts/div knob to 5 volts.
  3. Adjust the scope's triggering to make the sine wave stand still.
  4. Adjust the scope so that you get one or two cycles of the sine wave.
  5. Adjust the function generator's amplitude knob so that you get a 10-volt-peak sine wave (as observed on the scope).
  6. Multiply this by 0.707:  ____________ This gives you the RMS (root mean square) voltage, which should be very close to what the AC voltmeter reads.
  7. Use the scope to accurately measure the period for one cycle: ______________
  8. Calculate the frequency of the waveform based on this period: ______________
  9. Fill in the table shown below, being sure to do the following each time you switch to a different waveform:
    • If necessary, adjust the function generator's amplitude so that the waveform is exactly 20 volts peak-to-peak.
 
Voltmeter Readings
Meter set to DC or AC? Offset (function generator) Sine Wave,
volts		 Square Wave,
volts		 Triangle Wave,
volts		 Positive Pulse,
volts
AC None
DC None
AC Bottom of wave lined up with zero line
DC Bottom of wave lined up with zero line
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