日本OMRON，OMRON光電傳感器

日本OMRON，OMRON光電傳感器
日本OMRON1933年，立石真在大阪建立了個名為立石電機制作所的小型工廠，當時只有兩名職員。公司在起步階段除了定時器外，后來度專門保護繼電器。這兩種產品的制造成為歐姆龍株式會社的起點。為了適應時代的發展，在公司成立50周年紀念時，公司名稱與品牌名稱實現了統，改為“歐姆龍株式會社”。
無觸點接近開關，電子自動感應信號機，自動售貨機，車站自動售檢票系統，癌細胞自動診斷儀…歐姆龍在世界上開發并出系列產品與設備系統。為社會的進步與提高人類的生活水平作出貢獻。創造社會需求，構筑“安心”，“安全”，“環保”“健康”的社會是歐姆龍的企業發展目標。
自1933年5月10日創業今的70多年中，通過不斷創造新的社會需求，歐姆龍集團已經發展成為的自動化控制及電子設備制造廠商，掌握著世界的傳感與控制核心技術。 截止到2008年度，歐姆龍集團已經擁有員工32,699人（2010年4月），營業額近6,700億日元。產品品種達幾十萬種，涉及工業自動化控制系統、電子元器件、汽車電子、社會系統以及健康醫療設備等廣泛域。
OMRON光電傳感器是采用光電元件作為檢測元件的傳感器。它把被測量的變化轉換成光信號的變化，然后借助光電元件進步將光信號轉換成電信號。光電檢測方法具有精度高、反應快、非接觸等優點，而且可測參數多，傳感器的結構簡單，形式靈活多樣，因此,光電式傳感器在檢測和控制中應用非常廣泛。 　
OMRON光電傳感器是各種光電檢測系統中實現光電轉換的關鍵元件，它是把光信號（紅外、可見及紫外光輻射）轉變成為電信號的器件。光電式傳感器是以光電器件作為轉換元件的傳感器。它可用于檢測直接引起光量變化的非電量，如光強、光照度、輻射測溫、氣體成分分析等；也可用來檢測能轉換成光量變化的其他非電量，如零件直徑、表面粗糙度、應變、位移、振動、速度、加速度，以及物體的形狀、工作狀態的識別等。光電式傳感器具有非接觸、響應快、可靠等特點，因此在工業自動化裝置中獲得廣泛應用。
OMRON光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)傳(chuan)(chuan)感(gan)器(qi)和熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶都是基于熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)效(xiao)應(ying)(ying)原理的(de)(de)(de)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)型(xing)紅(hong)外(wai)傳(chuan)(chuan)感(gan)器(qi)。不(bu)同(tong)的(de)(de)(de)是光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)傳(chuan)(chuan)感(gan)器(qi)的(de)(de)(de)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系數遠遠高于熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶，其(qi)內(nei)部的(de)(de)(de)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元(yuan)由高熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系數的(de)(de)(de)鐵鈦(tai)酸鉛汞(gong)陶(tao)瓷(ci)以及鉭酸鋰、硫(liu)酸三(san)甘鐵等配(pei)合濾光(guang)鏡片窗口組(zu)成(cheng)(cheng)，其(qi)極化(hua)(hua)隨溫(wen)度的(de)(de)(de)變化(hua)(hua)而變化(hua)(hua)。為了抑制因(yin)(yin)自(zi)身(shen)溫(wen)度變化(hua)(hua)而產生(sheng)的(de)(de)(de)干(gan)擾 該光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)傳(chuan)(chuan)感(gan)器(qi)在工藝上(shang)(shang)將(jiang)兩個(ge)特征致的(de)(de)(de)熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元(yuan)反向(xiang)串聯或接(jie)(jie)成(cheng)(cheng)差動(dong)平衡(heng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路方式，因(yin)(yin)而能以非接(jie)(jie)觸式檢(jian)測出(chu)物體放出(chu)的(de)(de)(de)紅(hong)外(wai)線能量變化(hua)(hua) 并將(jiang)其(qi)轉(zhuan)(zhuan)換為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)信號(hao)輸(shu)出(chu)。熱(re)(re)釋電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)紅(hong)外(wai)傳(chuan)(chuan)感(gan)器(qi)在結構上(shang)(shang)引入場(chang)效(xiao)應(ying)(ying)管的(de)(de)(de)目的(de)(de)(de)在于完成(cheng)(cheng)阻(zu)(zu)抗(kang)變換。由于熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)元(yuan)輸(shu)出(chu)的(de)(de)(de)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷(he)信號(hao)，并不(bu)能直接(jie)(jie)使(shi)用(yong) 因(yin)(yin)而需要用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)將(jiang)其(qi)轉(zhuan)(zhuan)換為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)形式 該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)阻(zu)(zu)抗(kang)高達104MΩ，故引入的(de)(de)(de)N溝道結型(xing)場(chang)效(xiao)應(ying)(ying)管應(ying)(ying)接(jie)(jie)成(cheng)(cheng)共漏形式 即源極跟隨器(qi) 來完成(cheng)(cheng)阻(zu)(zu)抗(kang)變換。光(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)傳(chuan)(chuan)感(gan)器(qi)由傳(chuan)(chuan)感(gan)探(tan)測元(yuan)、干(gan)涉濾光(guang)片和場(chang)效(xiao)應(ying)(ying)管匹配(pei)器(qi)三(san)部分組(zu)成(cheng)(cheng)。設計時應(ying)(ying)將(jiang)高熱(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)材(cai)料制成(cheng)(cheng)定厚(hou)度的(de)(de)(de)薄(bo)片， 并在它的(de)(de)(de)兩面鍍上(shang)(shang)金屬(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極，然(ran)后(hou)加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)對其(qi)進行極化(hua)(hua)，這樣便制成(cheng)(cheng)了熱(re)(re)釋電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)探(tan)測元(yuan)。由于加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極化(hua)(hua)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)是有極性(xing)的(de)(de)(de)，因(yin)(yin)此(ci)極化(hua)(hua)后(hou)的(de)(de)(de)探(tan)測元(yuan)也是有正、負(fu)極性(xing)的(de)(de)(de)。