Unity

Basic oscilloscope operation This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/, or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. The terms and conditions of this license allow for free copying, distribution, and/or modification of all licensed works by the general public. Resources and methods for learning about these subjects (list a few here, in preparation for your research):

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Questions Question 1 An oscilloscope is a very useful piece of electronic test equipment. Most everyone has seen an oscilloscope in use, in the form of a heart-rate monitor (electrocardiogram, or EKG) of the type seen in doctor’s offices and hospitals. When monitoring heart beats, what do the two axes (horizontal and vertical) of the oscilloscope screen represent?

OSCILLOSCOPE vertical Y V/div trigger
DC GND AC

timebase X s/div
DC GND AC

In general electronics use, when measuring AC voltage signals, what do the two axes (horizontal and vertical) of the oscilloscope screen represent?

OSCILLOSCOPE vertical Y V/div trigger
DC GND AC

timebase X s/div
DC GND AC

file 00530

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Question 2 The core of an analog oscilloscope is a special type of vacuum tube known as a Cathode Ray Tube, or CRT. While similar in function to the CRT used in televisions, oscilloscope display tubes are specially built for the purpose of serving an a measuring instrument. Explain how a CRT functions. What goes on inside the tube to produce waveform displays on the screen? file 00536

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Question 3 When the vertical (”Y”) axis of an oscilloscope is shorted, the result should be a straight line in the middle of the screen:
OSCILLOSCOPE vertical Y V/div trigger
DC GND AC

timebase X s/div
DC GND AC

Determine the DC polarity of the voltage source, based on this illustration:
OSCILLOSCOPE vertical Y...