電磁流量計與渦輪流量計的性能比較

電磁流量計與渦輪流量計的性能比較

1、電磁流量計：被測介質粘度、midudengwuxingcanshudebianhuahuichanshengjianjieyingxiang，danjianjieyingxiangkezaixiuzhengwuxingyingxiangshikaolv。youyuliuliangyibiaojiegouhexingzhuangdefuzaxingjijiagongzhuangpeidelisanxing，caiyongjisuandefangfaduiqiqiangtisuicaozuotiaojiandebianhuajingquedijinxingxiuzhengyibanshi不可能的，根據試驗的數據針對所有流量計擬合出滿足準確度要求的經驗公式也不可能。

2、從廣義上講，被測介質的均勻度、含氣（液）量、雜質含量等來流條件，也屬於流量計操作條件的範疇
，但其對流量儀表性能的影響更加複雜，有時在線實流檢定也難以解決。

3、渦輪流量計：對於容積流量計而言，在進行流量儀表的型式鑒定、樣yang機ji試shi驗yan或huo質zhi檢jian抽chou查zha時shi，自zi然ran吸xi氣qi式shi發fa動dong機ji被bei改gai裝zhuang為wei增zeng壓ya式shi發fa動dong機ji後hou，不bu管guan是shi采cai用yong廢fei氣qi渦wo輪lun增zeng壓ya器qi還hai是shi機ji械xie增zeng壓ya器qi
，渦wo街jie流liu量liang計ji都dou會hui遇yu到dao進jin氣qi溫wen度du高gao的de問wen題ti，自zi然ran吸xi氣qi式shi發fa動dong機ji的de進jin氣qi溫wen度du不bu管guan發fa動dong機ji在zai什shen麼me狀zhuang態tai下xia都dou沒mei有you大da的de變bian化hua
，不bu管guan是shi裝zhuang在zai空kong氣qi流liu量liang計ji內nei，還hai是shi離li節jie氣qi門men不bu遠yuan的de進jin氣qi歧qi管guan上shang或huo風feng隔ge箱xiang處chu，都dou相xiang差cha不bu大da;對dui於yu速su度du式shi渦wo輪lun流liu量liang計ji，操cao作zuo條tiao件jian改gai變bian將jiang引yin起qi其qi流liu通tong麵mian積ji的de變bian化hua
，從cong而er導dao致zhi儀yi表biao係xi數shu的de變bian化hua。如ru果guo檢jian定ding時shi流liu量liang儀yi表biao的de操cao作zuo條tiao件jian能neng與yu實shi際ji使shi用yong時shi相xiang同tong或huo接jie近jin，則ze離li線xian檢jian定ding即ji可ke滿man足zu要yao求qiu。但dan是shi
，由you於yu操cao作zuo條tiao件jian的de複fu雜za性xing和he多duo變bian性xing，離li線xian檢jian定ding往wang往wang不bu能neng複fu現xian實shi際ji操cao作zuo條tiao件jian，隻zhi有you在zai線xian實shi流liu檢jian定ding才cai能neng解jie決jue高gao準zhun確que度du的de流liu量liang測ce量liang問wen題ti，否fou則ze要yao考kao慮lv附fu加jia的de誤wu差cha。