800FP-P4PN7R800FM-P4PN3R800FP-P4800FP-P4-BP800FP-P4MN5R800FP-P4MN7R800FP-P4MQ3R800FP-P4PD0C800FP-P4PD3C800FP-P4PD5C800FP-P4PN3R800FP-P4PN5R800FP-P4PN7R800FP-P4PQ3R800FP-P4PQ5R800FM-P4800FM-P4MD3C800FM-P4MN3R800FM-P4MN5R800FM-P4MN7R800FM-P4PD2C800FM-P4PN3R800FM-P4PN5R800FM-P4PN7R 它把發(fā)射端和接收端之間光的強(qiáng)弱變化轉(zhuǎn)化為電流的變化以達(dá)到探測的目的。由于光電開關(guān)輸出回路和輸入回路是電隔離的（即電絕緣），所以它可以在許多場合得到應(yīng)用。采用集成電路技術(shù)和SMT表面安裝工藝而制造的新一代光電開關(guān)器件，具有延時(shí)、展寬、外同步、抗相互干擾、可靠性高、工作區(qū)域穩(wěn)定和自診斷等智能化功能。這種新穎的光電開關(guān)是一種采用脈沖調(diào)制的主動式光電探測系統(tǒng)型電子開關(guān)，它所使用的冷光源有紅外光、紅色光、綠色光和藍(lán)色光等，可非接觸，無損傷地迅速和控制各種固體、液體、透明體、黑體、柔軟體和煙霧等物質(zhì)的狀態(tài)和動作。具有體積小、功能多、壽命長、精度高、響應(yīng)速度快、檢測距離遠(yuǎn)以及抗光、電、磁干擾能力強(qiáng)的優(yōu)點(diǎn)。光電開關(guān)已被用作物位檢測、液位控制、產(chǎn)品計(jì)數(shù)、寬度判別、速度檢測、定長剪切、孔洞識別、信號延時(shí)、自動門傳感、色標(biāo)檢出、沖床和剪切機(jī)以及安全防護(hù)等諸多領(lǐng)域。此外，利用紅外線的隱蔽性，還可在銀行、倉庫、商店、辦公室以及其它需要的場合作為防盜警戒之用。
常用的紅外線光電開關(guān)，是利用物體對近紅外線光束的反射原理，由同步回路感應(yīng)反射回來的光的強(qiáng)弱而檢測物體的存在與否來實(shí)現(xiàn)功能的，光電傳感器首先發(fā)出紅外線光束到達(dá)或透過物體或鏡面對紅外線光束進(jìn)行反射，光電傳感器接收反射回來的光束，根據(jù)光束的強(qiáng)弱判斷物體的存在。紅外光電開關(guān)的種類也非常的多，一般來說有鏡反射式光電開關(guān)、漫反射式、槽式、對射式、光纖式等幾個(gè)主要種類。光電開關(guān)快易優(yōu)自動化選型有收錄。
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