led燈珠亮度用什么檢測 |
發布時間:2022-11-15 17:43:18 |
大家好我(wo)是天成照明LED燈(deng)珠廠家小(xiao)編(bian)燈(deng)漂(piao)亮(liang)今天我(wo)們來介紹(shao)led燈(deng)珠亮(liang)度用什么檢測 中山(shan)超高亮(liang)度led燈(deng)珠的問(wen)題(ti),以下就是燈(deng)漂(piao)亮(liang)對此問(wen)題(ti)和(he)相(xiang)關問(wen)題(ti)的歸納整理,一起來看看吧。 文章目錄導讀: led燈珠照度如何測量 led燈珠測量方(fang)法:將萬(wan)(wan)用表上的(de)(de)旋鈕撥到二(er)極管(蜂鳴)檔,并將紅黑(hei)表筆(bi)插在(zai)萬(wan)(wan)用表的(de)(de)正確位(wei)置。 觀測(ce)燈(deng)(deng)管(guan),有四腳(jiao)(jiao)和二腳(jiao)(jiao)兩(liang)種,測(ce)量(liang)時(shi)若(ruo)是(shi)四腳(jiao)(jiao)則選測(ce)中間兩(liang)個腳(jiao)(jiao)。將紅(hong)黑表筆(bi)分別接觸到所需檢測(ce)的兩(liang)個引(yin)腳(jiao)(jiao)上(shang),若(ruo)有蜂鳴聲且(qie)萬用(yong)表紅(hong)色led燈(deng)(deng)亮。 怎樣檢測單個led燈珠是否亮的手段 用電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和電(dian)(dian)(dian)(dian)(dian)(dian)阻檔測。5730燈珠(zhu)(zhu)正(zheng)(zheng)向電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)是約0.5至(zhi)0.1nF、反向電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)比正(zheng)(zheng)向電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)稍小、不(bu)(bu)(bu)同品牌和型(xing)號(hao)測出(chu)(chu)的(de)不(bu)(bu)(bu)一(yi)樣(yang)、有的(de)正(zheng)(zheng)反向電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)都可(ke)低至(zhi)約0.07nF。是以上值的(de)、能(neng)用3.3伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)點亮(liang)(liang)且(qie)亮(liang)(liang)度(du)正(zheng)(zheng)常(chang)、都算(suan)正(zheng)(zheng)常(chang)。用3.3伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)試(shi)纔(cai)是關鍵。3.3伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)竝不(bu)(bu)(bu)難找、電(dian)(dian)(dian)(dian)(dian)(dian)腦上就有、一(yi)般(ban)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器上都有、編(bian)程器上亦有。沒辦法接(jie)出(chu)(chu)3.3伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)話、用5伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)亦可(ke)。一(yi)般(ban)手(shou)機充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓是5伏(fu)、5伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)試(shi)一(yi)下竝不(bu)(bu)(bu)會燒壞燈珠(zhu)(zhu)。5730燈珠(zhu)(zhu)大多可(ke)承受6.667伏(fu)電(dian)(dian)(dian)(dian)(dian)(dian)。正(zheng)(zheng)常(chang)LED燈珠(zhu)(zhu)冷態(tai)(tai)正(zheng)(zheng)反向電(dian)(dian)(dian)(dian)(dian)(dian)阻都很大、用一(yi)般(ban)萬用表(biao)測不(bu)(bu)(bu)出(chu)(chu)。壞LED燈珠(zhu)(zhu)有的(de)仍能(neng)亮(liang)(liang)、但亮(liang)(liang)度(du)不(bu)(bu)(bu)足、能(neng)被一(yi)般(ban)萬用表(biao)測出(chu)(chu)冷態(tai)(tai)電(dian)(dian)(dian)(dian)(dian)(dian)阻。 led燈亮度測試方法 LED顏色及亮度的測(ce)試方法有如(ru)下幾種(zhong): 1、 人眼(yan)識別: 依(yi)靠作(zuo)業(ye)人員的(de)眼(yan)睛觀察判(pan)斷LED顏色及亮(liang)度是否正確,該(gai)方法的(de)優點是簡單,缺點是完全依(yi)賴(lai)人來判(pan)斷,容易產(chan)生(sheng)由于人員的(de)紀律不佳導(dao)致產(chan)品(pin)品(pin)質無(wu)法把控,同時無(wu)法做(zuo)到(dao)自動化。 2、 專業的(de)(de)(de)(de)LED自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)測(ce)(ce)試儀(yi): 該種方法(fa)是(shi)通過(guo)光纖(xian)到LED的(de)(de)(de)(de)光導入到LED自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)測(ce)(ce)試儀(yi)中(zhong),LED自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)測(ce)(ce)試儀(yi)中(zhong)對光進行分析后(hou),一般(ban)會返回多種格(ge)式的(de)(de)(de)(de)顏(yan)色及(ji)亮(liang)度的(de)(de)(de)(de)值,如RGB, Hue, 飽(bao)和(he)度,亮(liang)度,xy值等等。該種方法(fa)是(shi)準確(que)性高(gao)(gao),自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)程度高(gao)(gao)。缺點(dian)是(shi)需要額外的(de)(de)(de)(de)成本(ben)。主流的(de)(de)(de)(de)LED測(ce)(ce)試儀(yi)有(you)Feasa LED測(ce)(ce)試儀(yi)和(he)iCAT LED自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)測(ce)(ce)試儀(yi)。Feasa LED 測(ce)(ce)試儀(yi)的(de)(de)(de)(de)長處是(shi)輸出(chu)格(ge)式多,缺點(dian)是(shi)價(jia)格(ge)過(guo)高(gao)(gao)。 iCAT LED測(ce)(ce)試儀(yi)功能和(he)Feasa相當,但價(jia)格(ge)優勢明(ming)顯,很適合自(zi)動(dong)(dong)化(hua)(hua)(hua)(hua)測(ce)(ce)試的(de)(de)(de)(de)運(yun)用。 3、 工業(ye)攝像(xiang)頭:用(yong)工業(ye)攝像(xiang)頭對LED進行拍照(zhao),然(ran)后分析圖(tu)像(xiang)來判斷LED的顏(yan)色及亮度。這(zhe)種方式在一次(ci)測試(shi)很多數量的LED時有優勢,但同樣有精(jing)確(que)度不夠等問題。 怎么檢測LED燈具的亮度 用(yong)照度(du)(du)儀。 照度(du)(du)儀是用(yong)來測量光(guang)(guang)線強弱等級的(de)(de)(de)專用(yong)設(she)備。在某些特定(ding)的(de)(de)(de)環境(jing)對光(guang)(guang)的(de)(de)(de)照度(du)(du)是有嚴格要求的(de)(de)(de),如用(yong)人(ren)工對藥品的(de)(de)(de)檢驗就(jiu)對光(guang)(guang)的(de)(de)(de)照度(du)(du)有嚴格的(de)(de)(de)要求。 照度(du)(du)儀原理:用(yong)鍺(zang)光(guang)(guang)電池(chi)作探頭,由于光(guang)(guang)的(de)(de)(de)強度(du)(du)不(bu)同光(guang)(guang)電池(chi)產生的(de)(de)(de)電流(liu)就(jiu)不(bu)同,再把這個(ge)電流(liu)進行直(zhi)(zhi)流(liu)放大,再經(jing)過數模轉換電路把直(zhi)(zhi)流(liu)信號變成直(zhi)(zhi)截反應光(guang)(guang)照強弱的(de)(de)(de)數字信號顯示出來。 強光手電燈珠怎么測好壞 眼(yan)睛觀察法(如果(guo)LED燈珠(zhu)外觀燒(shao)傷,或內(nei)部(bu)芯片發黑(hei),那是對LED燈珠(zhu)的物(wu)(wu)理損(sun)害,即LED燈珠(zhu)物(wu)(wu)理損(sun)壞)。 2、干電(dian)(dian)池測量(liang)法(采用(yong)2顆1.5V的電(dian)(dian)池串聯成3V的一個電(dian)(dian)池組,正反兩端(duan)接(jie)上,不亮說明可能燈珠(zhu)壞了)。 3、萬用表測量法。 a、將萬用(yong)表紅筆連接LED燈珠正(zheng)極觸點,將萬用(yong)表黑筆連接負極觸點,當LED燈珠出現微亮時(shi)就(jiu)是好(hao)的,否則燈珠可能已經損壞。 b、選用(yong)數字萬用(yong)表測量(liang)LED燈(deng)珠(zhu)正負極通斷情(qing)況,如果用(yong)指針萬用(yong)表測量(liang),用(yong)10KΩ檔,導通時(shi)能(neng)直觀(guan)地看到LED燈(deng)珠(zhu)亮度(du)的就說明LED燈(deng)珠(zhu)是(shi)(shi)好的,否則是(shi)(shi)損壞的。 4、LED測試筆測量法。 以(yi)上就是天(tian)成小編對(dui)于(yu)led燈(deng)珠(zhu)亮度用什么檢測(ce) 中(zhong)山超高亮度led燈(deng)珠(zhu)問題和相關問題的解答了,希望(wang)對(dui)你有(you)用 【責任編輯:燈(deng)漂亮】 |