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2. Oscilloscope - Wikipedia

   en.wikipedia.org/wiki/Oscilloscope

   Early high-speed visualisations of electrical voltages were made with an electro-mechanical oscillograph, [2] [3] invented by André Blondel in 1893. These gave valuable insights into high speed voltage changes, but had a frequency response in single kHz, and were superseded by the oscilloscope which used a cathode-ray tube (CRT) as its display element.

3. Oscilloscope types - Wikipedia

   en.wikipedia.org/wiki/Oscilloscope_types

   The oscilloscope's own signal analysis software can extract many useful time-domain features (e.g., rise time, pulse width, amplitude), frequency spectra, histograms and statistics, persistence maps, and a large number of parameters meaningful to engineers in specialized fields such as telecommunications, disk drive analysis and power electronics..

4. Clipping (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Clipping_(signal_processing)

   Clipping can be detected by viewing the signal (on an oscilloscope, for example), and observing that the tops and bottoms of waves aren't smooth anymore. When working with images, some tools can highlight all pixels that are pure white, allowing the user to identify larger groups of white pixels and decide if too much clipping has occurred.

5. Tektronix - Wikipedia

   en.wikipedia.org/wiki/Tektronix

   Hughes Aircraft Company is credited with the first working storage oscilloscope (the model 104D) but it was made in very small numbers and is extremely rare today. [18] In 1966, Tektronix brought out a line of high-frequency full-function oscilloscopes called the 400 series. The oscilloscopes were packed with features for field work applications.

6. Test probe - Wikipedia

   en.wikipedia.org/wiki/Test_probe

   A different probe technique is needed for high frequency signals. A high frequency oscilloscope presents a matched load (usually 50 ohms) at its input, which minimizes reflections at the scope. Probing with a matching 50-ohm transmission line would offer high frequency performance, but it would unduly load most circuits.

7. Spectrum analyzer - Wikipedia

   en.wikipedia.org/wiki/Spectrum_analyzer

   The display of a spectrum analyzer has frequency displayed on the horizontal axis and the amplitude on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope, which plots amplitude on the vertical axis but time on the horizontal axis. In fact, some lab instruments can function either as an oscilloscope or a ...