傳感器在工業(yè)照明中的應(yīng)用

　　工業(yè)照明是不斷發(fā)展的，因此，隨著減少能源消耗的壓力不斷，新的應(yīng)用出現(xiàn)，高效的光源，如發(fā)光二極管，變得更加廣泛適用。隨著電源和應(yīng)用程序的發(fā)展，傳感器的使用也為控制器提供反饋機(jī)制，使工業(yè)照明在其工作壽命內(nèi)保持最佳效率。

　　工業(yè)照明

　　目前工業(yè)照明的最大趨勢(shì)之一是向LED的轉(zhuǎn)變。雖然我們已自上世紀(jì)70年代計(jì)算器手表顯示用于紅色LED，它采取了穩(wěn)健發(fā)展的幾十年來(lái)的穩(wěn)定，產(chǎn)量高，特別是白光LED，使在新的應(yīng)用領(lǐng)域，如鐵路、航運(yùn)、建筑、LED路燈的使用，和交通信號(hào)燈。

　　這種趨勢(shì)能走多遠(yuǎn)？Roland Haitz，從安捷倫科技曾在LED發(fā)展的關(guān)鍵作用一個(gè)退休的科學(xué)家，對(duì)經(jīng)濟(jì)學(xué)家的創(chuàng)新峰會(huì)2011年11月，LED照明已增加了十倍每十年每流明成本已經(jīng)下降了十倍每十轉(zhuǎn)換效率。通量是一種將轉(zhuǎn)換效率和輸入功率相結(jié)合的LED燈組件的輸出，每十年提高20倍。

　　“我們可以去到12個(gè)數(shù)量級(jí)的動(dòng)態(tài)范圍，從10到10 megalumens腔隙，Haitz說(shuō)?！拔覀儗⒛茏鲎闱驁?chǎng)照明?！?/p>

　　Haitz說(shuō)效率實(shí)際LED照明可以達(dá)到50%，此時(shí)它可能對(duì)全球能源生產(chǎn)的20%，目前消耗的照明影響顯著。他說(shuō)：“在LED行業(yè)，我們將節(jié)省比太陽(yáng)能生產(chǎn)更多的能源。”。

　　LED lighting in practice

　　We are becoming used to LED lighting through its use in the home. The first applications were for low-energy lighting strips and decorative lamps that exploited the small size， high efficiency， and cool operation of LED sources to enable unique designs. Increasingly， homeowners are finding LED replacements for standard household bulbs in the shops， and doing a cost/benefit analysis to decide whether to pay the upfront premium for the LED bulb in return for long-term savings created by lower energy use and less frequent replacement.

　　Anyone who has handled a domestic LED bulb knows that these are sophisticated products that involve a great deal of careful design to cool the solid-state emitters that produce the light. This is necessary because the efficiency of the LED’s conversion of electrical energy to light falls as it gets hotter， reducing its key advantage over other light sources.