德國(guó)SIEMENS西門子流量計(jì)7ML1034-2AA1

德國(guó)西門子SIEMENS超聲波流量計(jì)常用壓電換能器新的動力。它利用壓電材料的壓電效應(yīng)長期間，采用適出的發(fā)射電路把電能加到發(fā)射換能器的壓電元件上，使其產(chǎn)生超聲波振勸規模最大。超聲波以某角度射入流體中傳播關註度，然后由接收換能器接收，并經(jīng)壓電元件變?yōu)殡娔芄芾?，以便檢測(cè)新型儲能。發(fā)射換能器利用壓電元件的逆壓電效應(yīng)，而接收換能器則是利用壓電效應(yīng)應用提升。
    西門子超聲波流量計(jì)換能器的壓電元件常做成圓形薄片不同需求，沿厚度振動(dòng)。薄片直徑超過(guò)厚度的10倍新品技，以保證振動(dòng)的方向性發展空間。壓電元件材料多采用鋯鈦酸鉛。為固定壓電元件保持穩定，使超聲波以合適的角度射入到流體中就此掀開，需把元件故人聲楔中，構(gòu)成換能器整體(又稱探頭)。聲楔的材料不僅要求強(qiáng)度高總之、耐老化，而且要求超聲波經(jīng)聲楔后能量損失小即透射系數(shù)接近1紮實做。常用的聲楔材料是有機(jī)玻璃連日來，因?yàn)樗该鞅Ｕ闲?，可以觀察到聲楔中壓電元件的組裝情況。另外信息化技術，某些橡膠領先水平、塑料及膠木也可作聲楔材料。

德國(guó)SIEMENS西門子流量計(jì)7ML1034-2AA1

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