隧道光亮度檢測儀是保障隧道行車安全的關(guān)鍵設(shè)備，基于光電轉(zhuǎn)換技術(shù)，通過高靈敏度光敏元件（如硅光電二極管）實時監(jiān)測隧道內(nèi)外光照強(qiáng)度。其測量范圍達(dá)0～7500cd/m2，精度0.1cd/m2，響應(yīng)時間低于毫秒級，可快速適應(yīng)光照突變。設(shè)備具備IP68防護(hù)等級，能在-50℃至+70℃環(huán)境下穩(wěn)定運(yùn)行，支持RS485等數(shù)字接口，可實現(xiàn)遠(yuǎn)程監(jiān)控與數(shù)據(jù)存儲，動態(tài)調(diào)節(jié)照明以消除“黑洞效應(yīng)"和“白洞效應(yīng)"，降低能耗與事故風(fēng)險。

隧道光亮度檢測儀能滿足整個隧道照明控制的要求，預(yù)置控制模式的控制器根據(jù)光源測量值按預(yù)設(shè)參數(shù)自動進(jìn)行切換照明開關(guān)，為隧道照明提供了優(yōu)良值。它的設(shè)計符合CIE關(guān)于隧道照明測量的要求，并能滿足《公路隧道通風(fēng)照明設(shè)計規(guī)范》，而且它的整體設(shè)計能滿足野外惡劣的工作環(huán)境地要求。

安裝方式：

隧道光強(qiáng)度監(jiān)測儀安裝在隧道內(nèi)指定區(qū)域的墻壁上，為了避免因事故或汽車殘骸對其的損傷，需安裝在4m左右的高度，距隧道入口大于10m的適當(dāng)位置。隧道光亮度監(jiān)測儀安裝在隧道外高度距路面4m左右，距隧道入口120—200m左右的適當(dāng)位置。具有高可靠性和低維護(hù)量.最新微處理器技術(shù)，數(shù)字化運(yùn)行，安裝調(diào)試簡易。

The tunnel luminance detector is a key device to ensure traffic safety in tunnels. Based on photoelectric conversion technology, it monitors the illumination intensity inside and the tunnel in real time through high-sensitivity photoelectric sensitive elements (such as silicon photodiodes). Its measuring range reaches 0-7500cdm2, with an accuracy of 0.1cd/m2 and a response time below the millisecond level, which can quickly adapt to sudden changes in illumination. The has an IP68 protection grade and can operate stably in the environment of -50℃ to  70℃. It supports digital interfaces such as RS485 which can achieve remote monitoring and data storage. It can dynamically adjust lighting to eliminate the "black hole effect" and "white hole effect", reduce energy consumption and accident risk