PS-05P3接近開(kāi)關(guān)Bi5-M18-AZ3X
PS-05P3接近開(kāi)關(guān)Bi5-M18-AZ3X
其它型式
當(dāng)觀察者或系統(tǒng)對(duì)波源的距離發(fā)生改變時(shí)，接近到的波的頻率會(huì)發(fā)生偏移，這種現(xiàn)象稱為多普勒效應(yīng)。聲納和雷達(dá)就是利用這個(gè)效應(yīng)的原理制成的。利用多普勒效應(yīng)可制成超聲波接近開(kāi)關(guān)、微波接近開(kāi)關(guān)等。當(dāng)有物體移近時(shí)，接近開(kāi)關(guān)接收到的反射信號(hào)會(huì)產(chǎn)生多普勒頻移，由此可以識(shí)別出有無(wú)物體接近。
接近開(kāi)關(guān)主要功能：檢測(cè)電梯、升降設(shè)備的停止、起動(dòng)、通過(guò)位置；檢測(cè)車輛的位置，防止兩物體相撞檢測(cè)；檢測(cè)工作機(jī)械的設(shè)定位置，移動(dòng)機(jī)器或部件的極限位置；檢測(cè)回轉(zhuǎn)體的停止位置，閥門的開(kāi)或關(guān)位置。
??尺寸控制：金屬板沖剪的尺寸控制裝置；自動(dòng)選擇、鑒別金屬件長(zhǎng)度；檢測(cè)自動(dòng)裝卸時(shí)堆物高度；檢測(cè)物品的長(zhǎng)、寬、高和體積。檢測(cè)物體存在有否 檢測(cè)生產(chǎn)包裝線上有無(wú)產(chǎn)品包裝箱；檢測(cè)有無(wú)產(chǎn)品零件。
??轉(zhuǎn)速與速度控制：控制傳送帶的速度；控制旋轉(zhuǎn)機(jī)械的轉(zhuǎn)速；與各種脈沖發(fā)生器一起控制轉(zhuǎn)速和轉(zhuǎn)數(shù)。
PS-05P3接近開(kāi)關(guān)批發(fā)
接近開(kāi)關(guān) 在一般的工業(yè)生產(chǎn)場(chǎng)所，通常都選用渦流式接近開(kāi)關(guān)和電容式接近開(kāi)關(guān)。因?yàn)檫@兩種接近開(kāi)關(guān)對(duì)環(huán)境的要求條件較低。
當(dāng)被測(cè)對(duì)象是導(dǎo)電物體或可以固定在一塊金屬物上的物體時(shí)，一般都選用渦流式接近開(kāi)關(guān)，因?yàn)樗捻憫?yīng)頻率高、抗環(huán)境干擾性能好、應(yīng)用范圍廣、價(jià)格較低。
Ex-J8T-1082LA防爆接近開(kāi)關(guān)
Ex-J8T-1082LB防爆接近開(kāi)關(guān)
Ex-J8T-1082LA-V1防爆接近開(kāi)關(guān)
Ex-J8T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-J8T-1082LA-bf防爆接近開(kāi)關(guān)
Ex-J8T_1082LB-bf防爆接近開(kāi)關(guān)
Ex-J8T_1082LA-bf_V1防爆接近開(kāi)關(guān)
Ex-J8T-1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G8T-182LB防爆接近開(kāi)關(guān)
Ex-G8T-M282LB防爆接近開(kāi)關(guān)
Ex-G8T-182LB-V1防爆接近開(kāi)關(guān)
Ex-G8T-M282LB-V1防爆接近開(kāi)關(guān)
Ex-G8T-182LB-bf防爆接近開(kāi)關(guān)
Ex-G8T-M282LB-bf防爆接近開(kāi)關(guān)
Ex-G8T-182LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G8T_M282LB-bf-V1防爆接近開(kāi)關(guān)
Ex-J18T-1082LA防爆接近開(kāi)關(guān)
Ex-J18T-1082LB防爆接近開(kāi)關(guān)
Ex-J18T-1082LA-V1防爆接近開(kāi)關(guān)
Ex-J18T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-J18T-1082LA-bf防爆接近開(kāi)關(guān)
Ex-J18T-1082LB-bf防爆接近開(kāi)關(guān)
Ex-J18T-1082LA-bf-V1防爆接近開(kāi)關(guān)
Ex-J18T-1082LB-bf_V1防爆接近開(kāi)關(guān)
Ex-J24T-1082LA防爆接近開(kāi)關(guān)
Ex-J24T-1082LB防爆接近開(kāi)關(guān)
Ex-J24T-1082LA-V1防爆接近開(kāi)關(guān)
Ex-J24T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-J24T-1082LA-bf防爆接近開(kāi)關(guān)
Ex-J24T-1082LB-bf防爆接近開(kāi)關(guān)
Ex-J24T-1082LA-bf-V1防爆接近開(kāi)關(guān)
Ex-J24T-1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-J30T-1082LA防爆接近開(kāi)關(guān)
Ex-J30T-1082LB防爆接近開(kāi)關(guān)
Ex-J30T-1082LA-V1防爆接近開(kāi)關(guān)
Ex-J30T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-J30T-1082LA-bf防爆接近開(kāi)關(guān)
Ex-J30T-1082LB-bf防爆接近開(kāi)關(guān)
Ex-J30T-1082LA-bf-V1防爆接近開(kāi)關(guān)
Ex-J30T-1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G18T-582LB防爆接近開(kāi)關(guān)
Ex-G18T-M882LE防爆接近開(kāi)關(guān)
Ex-G18T_582LB-V1防爆接近開(kāi)關(guān)
Ex-G18T-M882LB-V1防爆接近開(kāi)關(guān)
Ex-G18T-582LB-bf防爆接近開(kāi)關(guān)
Ex-G18T-M882LB-bf防爆接近開(kāi)關(guān)
Ex-G18T-582LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G18T-M882LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G24T-782LB防爆接近開(kāi)關(guān)
Ex-G24T-M1082LB防爆接近開(kāi)關(guān)
Ex-G24T-782LB-V1防爆接近開(kāi)關(guān)
Ex-G24T-M1082LB-V1防爆接近開(kāi)關(guān)
Ex-G24T-782LB-bf防爆接近開(kāi)關(guān)
Ex-G24T-M1082LB-bf防爆接近開(kāi)關(guān)
Ex-G24T-782LB-bf_V1防爆接近開(kāi)關(guān)
Ex-G24T-M1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G30T-1082LB防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-V1防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-bf防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-bf防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G30T-1082LB防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-V1防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-V1防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-bf防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-bf防爆接近開(kāi)關(guān)
Ex-G30T-1082LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G30T-M1582LB-bf-V1防爆接近開(kāi)關(guān)
Ex-G2440T-M2082LB防爆接近開(kāi)關(guān)
Ex-G2448T-M2582LB防爆接近開(kāi)關(guān)
Ex-G3048T-M2582LB-V1防爆接近開(kāi)關(guān)
Ex-G3055T-M3082LB-V1防爆接近開(kāi)關(guān)
