問(wèn)答題
【簡(jiǎn)答題】用K分度熱電偶測(cè)溫時(shí),熱端濁度為t℃時(shí)測(cè)得熱電勢(shì)E(t,t0)=16.395毫伏,同時(shí)測(cè)得冷端環(huán)境溫度為50℃,求熱端的實(shí)際溫度。已知K分度熱電偶在50℃時(shí)的熱電勢(shì)值為2.022毫伏,450℃時(shí)的熱電勢(shì)值為18.531毫伏,448.7時(shí)的熱電勢(shì)值為18.417毫伏。
答案:
E(t,0℃)=E(t,t0)+E(t0,()0℃)=16.395+2.022=18.417(毫伏)()所以熱端的實(shí)際溫...