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oscilloscope
oscilloscope An item of electronic test equipment that can display a wide variety of waveforms of electric signals. It does this effectively by “plotting” the amplitude variations of the signal with time on a display device, normally a cathode-ray tube. The electron beam of the CRT is deflected horizontally so that the display is scanned linearly with respect to time. Vertical beam deflections, derived from the input signal, are then superimposed on the display, the horizontal and vertical deflections being synchronized by means of trigger circuits. Most oscilloscopes provide at least two input channels allowing waveforms from different sources to be compared. Some oscilloscopes provide two timebases, allowing selected portions of a waveform to be displayed at a higher frequency by inserting a defined delay in the orizontal scan. See also storage oscilloscope.
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JOHN DAINTITH. "oscilloscope." A Dictionary of Computing. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "oscilloscope." A Dictionary of Computing. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O11-oscilloscope.html JOHN DAINTITH. "oscilloscope." A Dictionary of Computing. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-oscilloscope.html |
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oscilloscope
oscilloscope , electronic device used to produce visual displays corresponding to electrical signals. Displays of such nonelectrical phenomena as the variations of a sound's intensity can be made if the phenomena are converted into electrical signals. The display is formed by a moving dot on the screen of a cathode-ray tube . For most applications horizontal deflecting circuits move the dot in a repetitive cycle from left to right, and then, very quickly, back to its starting position to begin the next sweep. If during this process the vertical deflecting circuits move the dot up and down in response to the variations of the signal to be observed, a wavelike picture of the signal appears on the screen. An oscilloscope is one of the most valuable tools of an engineer or electronics technician. |
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"oscilloscope." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "oscilloscope." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-oscillos.html "oscilloscope." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-oscillos.html |
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oscilloscope
oscilloscope (cathode-ray oscilloscope) Electronic instrument in which a cathode-ray tube (CRT) system displays how quantities, such as voltage or current, vary over a period of time. The electron beam that traces the pattern on the screen is moved by a time-base generator within the oscilloscope. The result is generally a curve or graph on the screen.
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"oscilloscope." World Encyclopedia. 2005. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "oscilloscope." World Encyclopedia. 2005. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O142-oscilloscope.html "oscilloscope." World Encyclopedia. 2005. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-oscilloscope.html |
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oscilloscope
oscilloscope (oss-il-ŏ-skohp) n. a cathode-ray tube designed to display electronically a wave form corresponding to the electrical data fed into it. Oscilloscopes are used to provide a continuous record of many different measurements, such as the activity of the heart and brain. See electrocardiography, electroencephalography.
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"oscilloscope." A Dictionary of Nursing. 2008. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "oscilloscope." A Dictionary of Nursing. 2008. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O62-oscilloscope.html "oscilloscope." A Dictionary of Nursing. 2008. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-oscilloscope.html |
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oscilloscope
os·cil·lo·scope / əˈsiləˌskōp/ • n. a device for viewing oscillations, as of electrical voltage or current, by a display on the screen of a cathode-ray tube. DERIVATIVES: os·cil·lo·scop·ic / əˌsiləˈskäpik/ adj. |
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"oscilloscope." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "oscilloscope." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O999-oscilloscope.html "oscilloscope." The Oxford Pocket Dictionary of Current English. 2009. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-oscilloscope.html |
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