德國parker品牌概述:
parker派克是世界一流的工業(yè)企業(yè),制造流體傳動元器件及系統(tǒng),用于控制各種機械和其他設(shè)備的傳動、流量和壓力。parker派克提供1,400多條產(chǎn)品線,用于1,000多種工程機械、工業(yè)和航空航天領(lǐng)域內(nèi)的項目。parker派克是一家能夠給客戶提供計算機傳動控制解決方案的制造商。此外,在該領(lǐng)域parker派克擁有世界上較大的銷售網(wǎng)絡(luò),遍布全球的7,500多個銷售商為400,000多個用戶提供。
德國parker主要產(chǎn)品:
parker傳感器,parker壓力傳感器,parker溫度傳感器,parker流量計,parker渦輪流量計,parker齒輪流量計,parker壓力控制器。
parker產(chǎn)品特點:
parker壓力傳感器的讀數(shù)盤和測量盤有間隔相同的縫隙。測量盤隨被測物體轉(zhuǎn)動,每轉(zhuǎn)過一條縫隙,從光源投射到光敏元件(見光電式傳感器)上的光線產(chǎn)生一次明暗變化,光敏元件即輸出電流脈沖信號。parker反射式光電傳感器在被測轉(zhuǎn)軸上設(shè)有反射記號,由光源發(fā)出的光線通過透鏡和半透膜入射到被測轉(zhuǎn)軸上。轉(zhuǎn)軸轉(zhuǎn)動時,反射記號對投射光點的反射率發(fā)生變化。反射率變大時,反射光線經(jīng)透鏡投射到光敏元件上即發(fā)出一個脈沖信號;反射率變小時,光敏元件無信號。在一定時間內(nèi)對信號計數(shù)便可測出轉(zhuǎn)軸的轉(zhuǎn)速值。
parker壓力傳感器的能源輸入及信號輸出是由兩組帶間隙的特殊環(huán)形旋轉(zhuǎn)變壓器承擔(dān)的,因此可實現(xiàn)能源及信號的無接觸傳遞。該應(yīng)變傳感器測量原理如圖2所示。 在一段特制的彈性軸上粘貼專用的測扭應(yīng)變片并組成電橋,以形成基礎(chǔ)扭矩傳感器,然后在軸上再固定能源環(huán)形旋轉(zhuǎn)變壓器的次級線圈、軸上印刷電路板和信號環(huán)旋轉(zhuǎn)變壓器的初級線圈。電路板上包含整流穩(wěn)壓電源、儀表放大電路及v/f變換電路。在傳感器的外殼上固定著激磁電路、能源環(huán)形旋轉(zhuǎn)變壓器的初級線圈、信號環(huán)形變壓器的次級線圈及信號處理電路。 傳感器電路部分在工作時,由外部電源向傳感器提供15v電源,激磁電路中的晶體振蕩器產(chǎn)生400hz的方波,經(jīng)過tda2003功率放大即產(chǎn)生交流激磁功率電源,通過能源環(huán)形旋轉(zhuǎn)變壓器從靜止的初級線圈t1傳遞至旋轉(zhuǎn)的次級線圈t2, 然后將得到的交流電源通過軸上的整流、濾波電路處理后變成%26;#177;5v的直流電源。按信號形式的不同,轉(zhuǎn)速傳感器可分為模轉(zhuǎn)速傳感器擬式和數(shù)字式兩種。前者的輸出信號值是轉(zhuǎn)速的線性函數(shù),后者的輸出信號頻率與轉(zhuǎn)速成正比,或其信號峰值間隔與轉(zhuǎn)速成反比。
parker壓力傳感器由兩塊固定金屬板和與轉(zhuǎn)動軸相連的可動金屬板構(gòu)成。可動金屬板處于電轉(zhuǎn)速傳感器容量*大的位置,當(dāng)轉(zhuǎn)動軸旋轉(zhuǎn)180°時則處于電容量*小的位置。電容量的周期變化速率即為轉(zhuǎn)速?赏ㄟ^直流激勵、交流激勵和用可變電容構(gòu)成振蕩器的振蕩槽路等方式得到轉(zhuǎn)速的測量信號。介質(zhì)變化型是在電容器的兩個固定電極板之間嵌入一塊高介電常數(shù)的可動板而構(gòu)成的。可動介質(zhì)板與轉(zhuǎn)動軸相連,隨著轉(zhuǎn)動軸的旋轉(zhuǎn),電容器板間的介電常數(shù)發(fā)生周期性變化而引起電容量的周期性變化,其速率等于轉(zhuǎn)動軸的轉(zhuǎn)速。
parker傳感器 德國parker傳感器產(chǎn)品型號:
parker peff63nsm sae female flange elbow npt 6000 psi, 3/4", metric bolts
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parker peff62nsm sae female flange elbow npt 6000 psi, 1/2", metric bolts
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parker peff62nnbrssm sae female flange elbow npt 6000 psi, 1/2", metric bolts
parker peff62gsu sae female flange elbow bspp 6000 psi, 1/2", unc screws
parker peff62gssm sae female flange elbow bspp 6000 psi, 1/2", metric bolts
parker peff62gss sae female flange elbow bspp 6000 psi, size 1/2"
parker peff62gsm sae female flange elbow bspp 6000 psi, 1/2", metric bolts
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parker peff62gnbrssm sae female flange elbow bspp 6000 psi, 1/2", metric bolts
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parker peff38nsm sae female flange elbow npt 3000 psi, 2", metric bolts
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parker peff38gssm sae female flange elbow bspp 3000 psi, 2", metric bolts
parker peff38gss sae female flange elbow bspp 3000 psi, size 2"
parker peff38gsm sae female flange elbow bspp 3000 psi, 2", metric bolts