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tachometer
tachometer , instrument that indicates the speed, usually in revolutions per minute, at which an engine shaft is rotating. Some tachometers, especially those used in automobiles, are similar in construction and operation to automotive speedometers . Other types, often connected directly to the shaft whose speed they indicate, are small electric generators whose output voltage is proportional to speed. This voltage is applied to a voltmeter whose dial is calibrated in speed units. Another type, used only with engines having an ignition system, operates by counting the pulsations of current or voltage in the ignition system, the number of these being proportional to the speed of the shaft. |
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"tachometer." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "tachometer." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1E1-tachomet.html "tachometer." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-tachomet.html |
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tachometer
ta·chom·e·ter / taˈkämitər; tə-/ • n. an instrument that measures the working speed of an engine (esp. in a road vehicle), typically in revolutions per minute. |
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"tachometer." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "tachometer." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O999-tachometer.html "tachometer." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-tachometer.html |
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tachometer
tachometer instrument for measuring speed. XIX. f. Gr. tákhos speed + METER.
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T. F. HOAD. "tachometer." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "tachometer." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O27-tachometer.html T. F. HOAD. "tachometer." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-tachometer.html |
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tachometer
tachometer
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Cite this article
"tachometer." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "tachometer." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O233-tachometer.html "tachometer." Oxford Dictionary of Rhymes. 2007. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-tachometer.html |
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