140DAI75300
140DAI75300140DAI75300
繼電器是具有隔離功能的自動開關(guān)元件,廣泛應(yīng)用于遙控、遙測、通訊、自動控制、機電一體化及電力電子設(shè)備中,是最重要的控制元件之一。
繼電器一般都有能反映一定輸入變量(如電流、電壓、功率、阻抗、頻率、溫度、壓力、速度、光等)的感應(yīng)機構(gòu)(輸入部分);有能對被控電路實現(xiàn)"通"、"斷"控制的執(zhí)行機構(gòu)(輸出部分);在繼電器的輸入部分和輸出部分之間,還有對輸入量進(jìn)行耦合隔離,功能處理和對輸出部分進(jìn)行驅(qū)動的中間機構(gòu)(驅(qū)動部分)。
●業(yè)從事(DCS系統(tǒng))(機器人系統(tǒng))(大型伺服控制系統(tǒng))模塊 備件銷售廈門[泰尼電氣有
廈門泰尼備件解決方案銷售中心:
轉(zhuǎn)子流量計在工業(yè)生產(chǎn)過程中應(yīng)用較廣,可以測量多種介質(zhì)的流量,特別適用于中小管徑和低雷諾數(shù)的中小流量測量。轉(zhuǎn)子流量計結(jié)構(gòu)簡單,靈敏度高,量程比寬(10:1),壓力損失小且恒定,對直管段的要求不高,刻度近似線性,價格便宜,使用維護簡便。但儀表受被測介質(zhì)密度、粘度、溫度、壓力等因素的影響,其精度一般在1.5級左右。
作為控制元件,概括起來,繼電器有如下幾種作用:
1)擴大控制范圍:例如,多觸點繼電器控制信號達(dá)到某一定值時,可以按觸點組的不同形式,同時換接、開斷、接通多路電路。
2)放大:例如,靈敏型繼電器、中間繼電器等,用一個很微小的控制量,可以控制很大功率的電路。
3)綜合信號:例如,當(dāng)多個控制信號按規(guī)定的形式輸入多繞組繼電器時,經(jīng)過比較綜合,達(dá)到預(yù)定的控制效果。
4)自動、遙控、監(jiān)測:例如,自動裝置上的繼電器與其他電器一起,可以組成程序控制線路,從而實現(xiàn)自動化運行。
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