免费无码精品黄AV电影_中文字幕人成乱码中文乱码_亚洲乱码精品久久久久.._国产精品久久午夜夜伦鲁鲁

照(zhao)度計與亮度計的區別(bie)

與(yu)亮(liang)(liang)度(du)計(ji)(ji)(ji)工作原理基(ji)本上(shang)一致(zhi)，亮(liang)(liang)度(du)計(ji)(ji)(ji)也可以稱照(zhao)(zhao)度(du)計(ji)(ji)(ji)，其實(shi)(shi)兩者(zhe)本為(wei)同一實(shi)(shi)物，只是商家(jia)與(yu)用戶之間(jian)的(de)叫法不一樣而已，但在各廠家(jia)生產技術上(shang)照(zhao)(zhao)度(du)計(ji)(ji)(ji)與(yu)亮(liang)(liang)度(du)計(ji)(ji)(ji)還是有一點區別的(de)，下面由(you)小編來(lai)對照(zhao)(zhao)度(du)計(ji)(ji)(ji)與(yu)亮(liang)(liang)度(du)計(ji)(ji)(ji)分別進行講解。

照(zhao)度計簡(jian)介

照度(du)計(或稱勒克斯計)是一種專門測量光(guang)度(du)、亮度(du)的(de)儀器(qi)儀表(biao)。它由主機和一個光(guang)傳感器(qi)組成，測量范圍是0-50000室(shi)內的(de)平(ping)均光(guang)照度(du)是從100-1000lux，室(shi)外的(de)太(tai)陽(yang)光(guang)照度(du)大概是50000lux。lux是一個光(guang)照度(du)的(de)單位，表(biao)示(shi)光(guang)照射在(zai)表(biao)面上的(de)密度(du)。其(qi)應用場合主要為室(shi)內、辦公(gong)室(shi)、實驗室(shi)、環境研究。

照度計測量原(yuan)理(li)

光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)是把(ba)光(guang)(guang)(guang)(guang)能直接(jie)轉換成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能的(de)(de)光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)元件。當(dang)光(guang)(guang)(guang)(guang)線(xian)射(she)到硒光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)表(biao)(biao)(biao)面時(shi)，入(ru)射(she)光(guang)(guang)(guang)(guang)透過(guo)(guo)金屬薄(bo)膜(mo)4到達半導體(ti)硒層2和金屬薄(bo)膜(mo)4的(de)(de)分界面上(shang)，在界面上(shang)產生(sheng)光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)效應。產生(sheng)的(de)(de)光(guang)(guang)(guang)(guang)生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)大小(xiao)與光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)受光(guang)(guang)(guang)(guang)表(biao)(biao)(biao)面上(shang)的(de)(de)照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)有(you)一(yi)定(ding)的(de)(de)比例關(guan)系。這時(shi)如果接(jie)上(shang)外電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路，就(jiu)會有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)通過(guo)(guo)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)值從以(yi)勒克斯(si)（Lx）為刻度(du)(du)(du)的(de)(de)微安表(biao)(biao)(biao)上(shang)指示出來。光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)(de)大小(xiao)取決(jue)于入(ru)射(she)光(guang)(guang)(guang)(guang)的(de)(de)強弱。照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)有(you)變檔裝置，因此可以(yi)測高照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)，也可以(yi)測低照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)。 引照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)的(de)(de)種類：　1.目視照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)：使(shi)用不便，精度(du)(du)(du)不高，很少使(shi)用2.光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)：常用硒光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)和硅光(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)照(zhao)(zhao)(zhao)(zhao)度(du)(du)(du)計(ji)

照度計(ji)的種類(lei)：

1.目視(shi)照度(du)(du)計：使用不(bu)便(bian)，精度(du)(du)不(bu)高，很少使用 

2.光(guang)(guang)電(dian)照(zhao)度計(ji)(ji)：常用硒光(guang)(guang)電(dian)池照(zhao)度計(ji)(ji)和硅光(guang)(guang)電(dian)池照(zhao)度計(ji)(ji) 

光電池照度(du)計的組成(cheng)與使用要求： 

1.組成:微安(an)表、換擋旋(xuan)紐、零點調(diao)節、接線柱、光電池、V(λ)修正(zheng)濾光器等組成。 

常用硒(Se)光電池(chi)或(huo)硅(Si)光電池(chi)照(zhao)度計,又稱勒克斯(si)表 

2.使(shi)用要求： 

①光(guang)(guang)電(dian)(dian)池(chi)(chi)應(ying)用直(zhi)線性(xing)(xing)好的(de)硒(Se)光(guang)(guang)電(dian)(dian)池(chi)(chi)或硅(Si）光(guang)(guang)電(dian)(dian)池(chi)(chi);長時(shi)間(jian)工(gong)作(zuo)仍能保(bao)持良好的(de)穩定性(xing)(xing),且靈敏度高;高E時(shi)選用高內阻的(de)光(guang)(guang)電(dian)(dian)池(chi)(chi),其靈敏度低(di)而(er)線性(xing)(xing)好,受強光(guang)(guang)照射不易受損(sun) 

②內付有V(λ)修正濾(lv)光(guang)(guang)片,適宜用異色(se)溫光(guang)(guang)源的照度,誤差(cha)小 

③光電池前(qian)加一塊(kuai)余(yu)弦角度補償器(乳白(bai)玻璃或白(bai)色塑料(liao))原(yuan)因是入(ru)射角大時,光電池偏離余(yu)弦定則 

④照度(du)計應工作在室溫(wen)或接近室溫(wen)下(xia)(光電池漂(piao)移(yi)隨溫(wen)度(du)改(gai)(gai)變(bian)而發生改(gai)(gai)變(bian)）

亮(liang)度計的(de)定義

亮度(du)計是(shi)一(yi)種測(ce)光和測(ce)色的計量儀器。

亮度計是每個化(hua)學分(fen)析實驗室(shi)*的常用儀器設備之一，在各(ge)種定量和定性分(fen)析中得到(dao)了廣泛的應(ying)用。

亮度計的原理(li)

亮度(du)計主(zhu)要采用(yong)(yong)一(yi)對(dui)有一(yi)定(ding)距(ju)離的(de)光(guang)孔(kong)(kong)(kong)(kong)接(jie)收固定(ding)立體(ti)角、固定(ding)投光(guang)面積的(de)光(guang)通量，此值(zhi)不隨物(wu)體(ti)遠近而變(bian)，只要物(wu)體(ti)的(de)表面積足夠大。為了瞄準被(bei)測物(wu)體(ti),常采用(yong)(yong)成(cheng)像(xiang)系統。被(bei)測光(guang)源(yuan)經物(wu)鏡(jing)(jing)后在帶孔(kong)(kong)(kong)(kong)（前光(guang)孔(kong)(kong)(kong)(kong)）反射鏡(jing)(jing)上(shang)成(cheng)像(xiang)，其中一(yi)部(bu)(bu)分經反射鏡(jing)(jing)及目鏡(jing)(jing)，由人眼(yan)接(jie)收，以瞄準和監控清晰成(cheng)像(xiang)面與帶孔(kong)(kong)(kong)(kong)反射鏡(jing)(jing)重合；另一(yi)部(bu)(bu)分光(guang)則經過(guo)反射鏡(jing)(jing)上(shang)的(de)小孔(kong)(kong)(kong)(kong)經后光(guang)孔(kong)(kong)(kong)(kong)到達V(λ)接(jie)收器。亮度(du)值(zhi)用(yong)(yong)指針或數(shu)字表頭顯示。

亮度(du)計的特點

1.采用微機控制(zhi)并進行數據處(chu)理。

2.用干涉濾光片作為分光元(yuan)件，光電管(guan)進行光電轉換。

3.具有(you)鉀、鈉(na)濃(nong)度直讀，曲線擬合，靈敏度漂(piao)移，自(zi)動校正，自(zi)動調滿度。操作失誤(wu)顯示，打(da)印(yin)結果等功(gong)能(neng)。

4.線性(xing)穩(wen)定性(xing)、重現性(xing)好(hao)，尤(you)其適合臨(lin)床應(ying)用(yong)。

亮度(du)計的應(ying)用

亮度計是照明工程、光(guang)源和發光(guang)器(qi)件(jian)、電影電視、交通(tong)信(xin)號、建筑、大氣光(guang)度學(xue)等領域常(chang)用的測試(shi)儀(yi)器(qi)。