縷(lv)紗(sha)(sha)(sha)(sha)(sha)(sha)測長儀是(shi)(shi)評價紗(sha)(sha)(sha)(sha)(sha)(sha)線(xian)、纖維長絲等(deng)線(xian)密度(du)技術(shu)指(zhi)標的(de)(de)(de)儀器(qi)(qi)，廣泛(fan)使用于(yu)紡織企業、檢(jian)測機(ji)構、質檢(jian)執(zhi)法(fa)單位和科(ke)研機(ji)構的(de)(de)(de)中心實(shi)驗(yan)室。由紗(sha)(sha)(sha)(sha)(sha)(sha)框、張力器(qi)(qi)、橫(heng)動(dong)(dong)排(pai)紗(sha)(sha)(sha)(sha)(sha)(sha)器(qi)(qi)、導(dao)紗(sha)(sha)(sha)(sha)(sha)(sha)架和控(kong)制(zhi)(zhi)面(mian)板五部分構成(cheng)。紗(sha)(sha)(sha)(sha)(sha)(sha)測長儀每繞取一圈(quan)紗(sha)(sha)(sha)(sha)(sha)(sha)線(xian)就得到一圈(quan)的(de)(de)(de)長度(du)，因此紗(sha)(sha)(sha)(sha)(sha)(sha)線(xian)的(de)(de)(de)張力影(ying)響長度(du)，圈(quan)數越(yue)多(duo)積累(lei)長度(du)差別(bie)越(yue)大，所以，張力器(qi)(qi)在本儀器(qi)(qi)上(shang)是(shi)(shi)一道(dao)獨特(te)技術(shu)特(te)征。紗(sha)(sha)(sha)(sha)(sha)(sha)框是(shi)(shi)六角菱形結構，紗(sha)(sha)(sha)(sha)(sha)(sha)框圈(quan)長是(shi)(shi)計量繞紗(sha)(sha)(sha)(sha)(sha)(sha)總(zong)長的(de)(de)(de)基礎。導(dao)紗(sha)(sha)(sha)(sha)(sha)(sha)架是(shi)(shi)試(shi)(shi)樣紗(sha)(sha)(sha)(sha)(sha)(sha)路(lu)(lu)路(lu)(lu)徑控(kong)制(zhi)(zhi)器(qi)(qi)之一，試(shi)(shi)樣進入儀器(qi)(qi)試(shi)(shi)驗(yan)路(lu)(lu)徑入口(kou)。控(kong)制(zhi)(zhi)面(mian)板是(shi)(shi)控(kong)制(zhi)(zhi)儀器(qi)(qi)運轉的(de)(de)(de)樞紐，橫(heng)動(dong)(dong)排(pai)紗(sha)(sha)(sha)(sha)(sha)(sha)器(qi)(qi)也是(shi)(shi)試(shi)(shi)樣紗(sha)(sha)(sha)(sha)(sha)(sha)路(lu)(lu)路(lu)(lu)徑控(kong)制(zhi)(zhi)器(qi)(qi)之一，電機(ji)驅動(dong)(dong)凸(tu)輪推動(dong)(dong)排(pai)紗(sha)(sha)(sha)(sha)(sha)(sha)桿往(wang)復運動(dong)(dong)，排(pai)紗(sha)(sha)(sha)(sha)(sha)(sha)桿上(shang)裝有導(dao)紗(sha)(sha)(sha)(sha)(sha)(sha)鉤(gou)，導(dao)紗(sha)(sha)(sha)(sha)(sha)(sha)鉤(gou)里的(de)(de)(de)試(shi)(shi)樣在紗(sha)(sha)(sha)(sha)(sha)(sha)框纏繞的(de)(de)(de)過程中均勻、有序排(pai)列(lie)。