翻訳と辞書 Words near each other ・ Tack (square sail) ・ Tack Ching Girls' Secondary School ・ Tack cloth ・ Tack Lake (Minnesota) ・ Tachiyaku ・ Tachiyama Mineemon ・ Tachiyeh ・ Tachlifa the Palestinian ・ Tachlovice ・ Tacho (disambiguation) ・ Tacho people ・ Tachocline ・ Tachognya ・ Tachograph ・ Tachoires ・ Tachometer ・ Tachoni tribe (Luhya) ・ Tachopteryx thoreyi ・ Tachornis ・ Tachosa ・ Tachosa acronyctoides ・ Tachosa aspera ・ Tachosa fumata ・ Tachosa guichardi ・ Tachosa sagittalis ・ TachoSil ・ Tachott ・ Tachouda ・ Tachov ・ Tachov (Česká Lípa District) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Tachometer ： ウィキペディア英語版 Tachometer A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common. The word comes from Greek ''ταχος'' (''tachos'' "speed") and ''metron'' ("measure"). ==History== The first mechanical tachometers were based on measuring the centrifugal force, similar to the operation of a centrifugal governor. The inventor is assumed to be the German engineer Dietrich Uhlhorn; he used it for measuring the speed of machines in 1817. Since 1840, it has been used to measure the speed of locomotives. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tachometer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.