常見例句Analyzing the whole measuring process of the Ohm meter,an estimate formula for the resistance uncertainty is derived. 從分析歐姆表測(cè)量的全過程出發(fā)，導(dǎo)出了電阻測(cè)量不確定度的估計(jì)公式.Micro ohm meter has been used to measure the contact resistance commonly at present. 目前最常用的接觸電阻測(cè)試儀器是微歐儀，這些儀器普遍採(cǎi)用大電流恒流源，因此躰積和重量都很大。Analyzing the whole measuring process of the Ohm meter, an estimate formula for the resistance uncertainty is derived. 儅微安表改裝爲(wèi)歐姆表後 ,儅電池電壓變化時(shí) ,改裝表測(cè)量值會(huì)産生很大誤差。DVM is not accurate in measuring resistance below 20 ohm due to the lead resistance, unless it is a 4 wired ohm meter. 數(shù)字式電壓表在測(cè)量低於20歐姆的電阻時(shí)，會(huì)因爲(wèi)引腳的電阻而使測(cè)量不準(zhǔn)確.;除非它是一個(gè)四線歐姆表DVM is not accurate in measuring resistance below 20 ohm due to the lead resistance, unless it is a4 wired ohm meter. 數(shù)字式電壓表在測(cè)量低於20歐姆的電阻時(shí)，會(huì)因爲(wèi)引腳的電阻而使測(cè)量不準(zhǔn)確.;除非它是一個(gè)四線歐姆表When a microampere meter is changed to an Ohm meter valtage is changed and there will be big errors in the measuring value. 儅微安表改裝爲(wèi)歐姆表後,儅電池電壓變化時(shí),改裝表測(cè)量值會(huì)産生很大誤差。 返回 ohm meter