Download the Oscilloscope Applications Guidebook from BK Precision (2001, 3rd edition, 43 pages, 2.63 MB pdf file)
This is a good introduction to analog oscilloscopes. Digital scopes are also covered, but for those you can find a more modern introduction in XYZs of Oscilloscopes. The guidebook starts with an explanation of some common oscilloscope terms.On p. 3 are some important guidelines for oscilloscope safety. If follows an explanation of the controls of oscilloscopes and what you can do with them. You can consider this a the minimum you need to know about scopes if you want to work with them effectively. If you are also interested in knowing how a scope works, an easy introduction starts on page 20.
On p. 24 is a short introduction to probes. On page 25 starts the applications section, which includes descriptions of measurements of DC voltage, frequency, time and pulsewidth measurements, pulse rise- and fall time measurements, modulation and phase measurements. A method to quickly check the performance of an amplifier with a square wave generator is described on p. 34. On p. 35 follows a description of X-Y mode applications. The description of the NTSC color video signal on p.42 however is much less important today.
You may also be interested in some other Recommendations for Introductions to Oscilloscopes.
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