BURKERT寶德流量計00436473的詳細資料:
BURKERT流量計利用(yong)壓電材料的(de)(de)壓電效(xiao)應(ying),采(cai)用(yong)適出的(de)(de)發射(she)電路把電能(neng)加到發射(she)換能(neng)器的(de)(de)壓電元(yuan)件上(shang),使其產生超聲(sheng)波振勸。超聲(sheng)波以某一角度射(she)入流體中(zhong)傳播,然后(hou)由接(jie)收(shou)換能(neng)器接(jie)收(shou),并經壓電元(yuan)件變為電能(neng),以便(bian)檢測。發射(she)換能(neng)器利用(yong)壓電元(yuan)件的(de)(de)逆壓電效(xiao)應(ying),而接(jie)收(shou)換能(neng)器則是利用(yong)壓電效(xiao)應(ying)。
BURKERT氣體流量(liang)計
BURKERT氣體(ti)(ti)流量計換能器(qi)的壓(ya)電(dian)(dian)元(yuan)件(jian)常做成(cheng)圓形薄片,沿(yan)厚度(du)振(zhen)動。薄片直(zhi)徑超(chao)過厚度(du)的10倍,以保證振(zhen)動的方向性。壓(ya)電(dian)(dian)元(yuan)件(jian)材(cai)料多采用鋯鈦酸鉛。為(wei)固定壓(ya)電(dian)(dian)元(yuan)件(jian),使(shi)超(chao)聲(sheng)(sheng)(sheng)波以合(he)適的角度(du)射入到流體(ti)(ti)中,需把(ba)元(yuan)件(jian)故人聲(sheng)(sheng)(sheng)楔(xie)中,構成(cheng)換能器(qi)整體(ti)(ti)(又(you)稱探頭)。聲(sheng)(sheng)(sheng)楔(xie)的材(cai)料不(bu)僅要求(qiu)(qiu)強度(du)高、耐老化,而且要求(qiu)(qiu)超(chao)聲(sheng)(sheng)(sheng)波經聲(sheng)(sheng)(sheng)楔(xie)后(hou)能量損(sun)失小(xiao)即透射系(xi)數接(jie)近1。常用的聲(sheng)(sheng)(sheng)楔(xie)材(cai)料是有機(ji)玻璃,因為(wei)它透明,可以觀察到聲(sheng)(sheng)(sheng)楔(xie)中壓(ya)電(dian)(dian)元(yuan)件(jian)的組裝(zhuang)情況(kuang)。另外,某些(xie)橡(xiang)膠、塑料及(ji)膠木也可作聲(sheng)(sheng)(sheng)楔(xie)材(cai)料。
BURKERT流量計部分型號如下:
134324 132479 146575 001400 126149 136347
139065 501122 062407 153807 126140 419587
137079 416947 141218 502539 126275 165756
134322 044846 165756 501211 125660 141465
440322 446450 449909 420 093 041116 134325
449694 134328 423980 138417 165773 131627
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