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Basic Oscilloscope Operation
25 questions By Tony R. Kuphaldt
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Question 7 of 25
A technician prepares to use an oscilloscope to display an AC voltage signal. After turning the oscilloscope on and connecting the Y input probe to the signal source test points, this display appears:
What appears on the oscilloscope screen is a vertical line that moves slowly from left to right. What display control(s) need to be adjusted on the oscilloscope in order to show a normal-looking wave on the screen?
Reveal answerThe “timebase” control needs to be adjusted for fewer seconds per division.
Notes:Discuss the function of both these controls with your students. If possible, demonstrate this scenario using a real oscilloscope and function generator, and have students adjust the controls to get the waveform to display optimally.
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Question 8 of 25
A technician prepares to use an oscilloscope to display an AC voltage signal. After turning the oscilloscope on and connecting the Y input probe to the signal source test points, this display appears:
What display control(s) need to be adjusted on the oscilloscope in order to show a normal-looking wave on the screen?
Reveal answerThe “timebase” control needs to be adjusted for a greater number of seconds per division.
Notes:Discuss the function of both these controls with your students. If possible, demonstrate this scenario using a real oscilloscope and function generator, and have students adjust the controls to get the waveform to display optimally. Challenge your students to think of ways the signal source (function generator) may be adjusted to produce the display, then have them think of ways the oscilloscope controls could be adjusted to fit.
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Question 9 of 25
Determine the frequency of this waveform, as displayed by an oscilloscope with a vertical sensitivity of 2 volts per division and a timebase of 0.5 milliseconds per division:
Reveal answer400 Hz
Notes:This is just a straightforward exercise in determining period and translating that value into frequency.
this is so helpful thank you
Veľká vďaka za poučný článok. Ešte keby tam bolo napísané, ako sa vypočítala tá frekvencia 400 Hz, 40 Hz, 6,67 kHz