A multi-function instrument that can measure multiple quantities using a changeover switch. Testers are one type of instrument, and can measure DC voltage, current, resistance, and AC voltage, and may also have additional functions for special applications (such as low-frequency output and temperature measurement). A typical example of a digital instrument is the digital multimeter, which can display DC voltage, current, and AC voltage digitally. It can display 3 to 5 digits and is more accurate than the analog method. [Hirayama Hiroyuki] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
一つの計器で切換えスイッチを使い,複数の量を測定することのできる多機能計器のこと。テスターはその一種で,直流電圧,電流,抵抗,交流電圧を測定することのできるもので,さらに特殊な用途(例えば低周波出力,温度測定など)の付加機能を有する場合もある。ディジタル計器ではディジタルマルチメーターが代表例で,直流電圧,電流,交流電圧をディジタル表示できる。3~5桁の表示が可能でアナログ方式より精度がよい。【平山 宏之】
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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