optical power level 中文意思是什麼
optical power level
解釋
光能級-
One forward optical transmitter module takes one slot, inside power double - amplification, low driving level 80dbuv, output optical power 4 20mw
一個正向光發射模塊佔有一個槽位，內置功率倍增驅動放大。驅動電平低80dbuv ，輸出光功率420mw -
One forward optical receiver module takes one slot, after power double - amplification inside, send out 1 way rf signal 104dbuv and 1 way level checking signal, or two - distribution output
一個正向光接收器模塊佔一個槽位，內置功率倍增放大，輸出1路射頻信號104dbuv和1路電平檢測口，或二分配輸出 -
Based on studying of the multi - level technique, a variable frequency speed regulation system based on the diode clamped three - level inverter is introduced in this thesis in detail. it includes ac - dc - ac main power circuit, snubber circuit, isolated driving circuit by optical fibre, delay time circuit on powering, sampling circuit of current and voltage, protection circuit and etc. a distributed power system ( dps ) which can reinforced the system ’ s security is developed to solve the power supply of the whole system
本文在研究多電平技術的基礎上，研製了一套以二極體箝位式三電平逆變器為基礎的變頻調速系統，包括:交-直-交主功率電路，緩沖電路，光纖隔離驅動電路，上電緩沖延時電路，電流、電壓采樣電路，保護電路等。 -
By using a new optical input power level detection and signal treatment method to control the gain of the receiver and keep its output level within the required range, a novel feedforward agc optical receiver without radio frequency feedback circuits is realized
我們採用一種入射光功率電平檢測與處理的新方法，對模擬光接收機的增益進行控制，將接收機輸出電平控制在要求的范圍內，實現了一種新型的無射頻反饋電路的自動增益控制光接收機。 -
Lamps protective levels ip65 1 level electrical insulation protection quality stainless steel or aluminium shell reflective devices imported anode aluminum, optical effect better, 5mm thick glass, replacement power behind the opening ceremony for the maintenance, which was spent mainly on : advertising, building location, stadium and other outdoor lighting
：燈具防護等級ip65 ， 1級電氣絕緣保護，優質不銹鋼或鋁壓鑄成燈體，進口陽極氧化鋁反光器，光效更好， 5mm厚鋼化玻璃，背後開啟式更換電源，方便維護，主要用在：廣告大廈外景體育館等戶外照明。
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