德國賀德克蓄能器，德國倍加福P+F傳感器，德國克拉克Burkert流量計，德國西克賀德克編碼器等。
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應(yīng)用比較多的換能器是外夾式和插入式。單聲道超聲波流量計結(jié)構(gòu)簡單、使用方便，但這種流量計對流態(tài)分布變化適應(yīng)性差，微電子技術(shù)和計算機技術(shù)的飛躍發(fā)展極大地推動儀表更新?lián)Q代，新型流量計如雨后春筍般涌現(xiàn)出來。至今，據(jù)稱已有上百種流量計投向市場，現(xiàn)場使用中許多棘手的難題可望獲得解決。我國開展近代流量測量技術(shù)的工作比較晚，被設(shè)置在測量流動通道6的上游端并相對于孔眼11和12，用于減少被測量的流體流入孔眼11和12;測量控制部件19，用于測量超聲波換能器8和9之間的超聲波的傳播時間;及計算部件20，用于根據(jù)該測量控制部件19的信號計算流量。

流量計英文名稱是flowmeter，全國科學技術(shù)名詞審定委員會把它定義為：指示被測流量和（或）在選定的時間間隔內(nèi)流體總量的儀表。簡單來說就是用于測量管道或明渠中流體流量的一種儀表。
流量計又分為有差壓式流量計、轉(zhuǎn)子流量計、節(jié)流式流量計、細縫流量計、容積流量計、電磁流量計、超聲波流量計等。按介質(zhì)分類：液體流量計和氣體流量計。

由于缺乏國家在這行業(yè)體制機制強有力的支持，造成我國儀器儀表行業(yè)缺乏高層次的復合型人才，缺乏熟悉、精通各學科交叉的綜合型人才。自主創(chuàng)新能力低下，自主知識產(chǎn)權(quán)匱乏。具體表現(xiàn)在國產(chǎn)自動化產(chǎn)品奇缺，市場競爭力不強。

流量計盡量避開鐵磁性物體及具有強電磁場的設(shè)備(如大電機、大變壓器的等)，以免磁場影響傳感器的工作磁場和流量信號。傳感器勺轉(zhuǎn)換器間的流量信號線和激磁線。然而從雷電故障中損壞零部件的分析，引起故障的感應(yīng)高電壓和浪涌電流大部分足從控制室電源線路引入的，其他兩條途徑較少。由于電磁流量計測量含有懸浮固相或污臟體的機會遠比其他流量儀表多，出現(xiàn)內(nèi)壁附著層產(chǎn)生的故障概率也就相對較高。若附著層電導率與液體電導率相近。常見的調(diào)試期故障通常由安裝不妥。

科拉特流量計現(xiàn)貨型號如下：

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以上信息版權(quán)歸上海維特銳所有，如需詳細了解請點擊:德國流量計系列產(chǎn)品