LED燈具照度量測機台之研製

吾人利用美商國家儀器(National Instrument)所發展之圖控式程式語言Labview 8.5編寫此自製機台的控制架構與人機介面程式；藉由三菱可程式邏輯控制器、研華溫度感測器、五鈴光學的照度計(±2%精度)等三台儀器與上銀科技線性滑軌、導螺桿和泰映科技的步進馬達、減速機構且依循CNS規範(CNS 5119 C4165照度計、CNS 5065 C3069 照度測定法、CNS 12112 Z1044 室內工作場所照明、CNS15249 C3222發光二極體元件之光學與電性量測方法、CNS 15437 C4510 輕鋼架天花板崁入型發光二極體燈具、CNS15233 C4504 發光二極體道路照明燈具)開發出具有自動/手動模式的LED自動量測機台，其人機介面具有照度量測(照度最大/最小值、平均照度、照度均勻度、照度平面/空間分佈)、光強度計算、LED晶片溫度模擬的量測功能；機台系統精度在X軸為0.263mm的誤差、Y軸則有0.194mm的誤差。 LED燈具在使用上因有80%的輸入能源會轉為熱量，故此機台也包含溫度的即時監控，吾人透過微熱流實驗室研發出[17、23]的溫度模擬識別系統，整合至Labview程式中配合LED燈鋁基板所擷取之溫度(Tb)，模擬出燈具晶片的中心點溫度，以了解燈具點亮時經時溫昇的情況，此溫度感測功能為機台的另一特色。隨著白光發光二極體(LED)的發現，伴隨著各式應用有所突破，此固體照明開始融入日常生活中，舉凡交通號誌、液晶面板、通訊產品，廣泛用於建築、醫療、景觀設施照明應用上，因而衍生出各式燈具，而CNS 12112 Z1044規範根據不同的應用場合的需要所制定出的照度值(lux)能給消費者選購燈具的參考；吾人利用此機台所建立的照度量測功能來測試共27種燈具，包含一般市面選購而得的燈具以及LED燈，並相互比較測試結果，與提出節能的範例參考。此機台為目前國際上唯一之全自動照度量測/溫度模擬機台，其仍然受量測高度限制，未來可再增加量測高度和測試更多型燈具，且配合終端客戶提出更多的光學量測解決方案為其未來發展方向。

關鍵字

LED ； LabVIEW ；照度量測；溫度感測

並列摘要

We use the graphic program－Labview,which developed by National Instrument to progress this homemade platform control system and human machine interface design.；with three hardware－the programmable logic controller that made by Mitsubishi,the temperature sensor that made by Advantech,the Illuminance sensor (with±2% Accuracy)that made by Konica Minolta and the linear guideway and ballscrew that made by HIWIN technology,the stepping motor and reducer mechanism that made by Troy Enterprise Company,and follow CNS standard(include CNS 5119 C4165 Illuminance Meters、CNS 5065 C3069 Methods of Illumination Measurements、CNS 12112 Z1044 Lighting of indoor work places、CNS15249 C3222 Methods of measurement on light emitting diode components for optical and electrical characteristics、CNS 15437 C4510 Recessed LED luminaires for T-bar ceiling systems、CNS15233 C4504 Fixtures of roadway lighting with light emitting diode lamps) to build the LED automatic measuration platform which have Auto/Manual mode,the human machine interface possess the measuration of illuminance (the maximum/minimum value、the average illuminance value、the uniform illuminance value、the illuminance plat/space distribuction),the calculate of light intensity,the simulation of LED chip temperature feature.The machine system accurate at X-axis have 0.263mm deviation,on the orther hand,at Y-axis have 0.194mm deviation. Because of the 80% input power of LED will transfer to thermal,that the platform also include on-time temperature monitor system. Through temperature simulate identify system [17、23] that developed by micro thermal-fluid labatory,we use this model integrat to Labview program and with the temperature on lamp board(Tb),to simulate the chip central temperature(Tj).With Tj,we can find out that temperature raise status when lamp turn on.The simulation of LED chip temperture is the platform others feature. Due to the Light-emitting Diode rapid developed in recent years,that its apply in various application,the solid lighting became into our daily life, such as traffic light, light crystal panel,the product of communicate,that into building, medical, and the lighting of landscape. Because of the various extend application, the CNS 12112 Z1044 standard base on different occasion to establish the necessary illuminance value(lux),that provide a reference to cosumer. We use this homemade machine which have the measurement of illuminance function to test a total of 27 various lamp,include the lamp at market that can purchase and the LED lamp,we can campare the testing result and give recommend about energy-saving issue. This machine is the only Automatic illuminance measuration/temperature simulate platform nowadays in the world.But the measure height still have restriction,therefore,it can increase the measuration height and test more species lamp,and can assort with the terminal consumer to provide more optics mesuration soluction is the platform prospect for the future.

並列關鍵字

LED ； Labview ； The measurement of illuminance ； The simulation of LED chip temperature

參考文獻

[13] 曾國雄、李政益，以LabVIEW為基礎進行系統設備之整合設計與實現，碩士論文，國立台北科技大學能源所，台北，2007

[26] 黃秉鈞、周嘉貴，半導體照明控制技術研究，碩士論文，國立台灣大學機械工程研究所，台北，2004

[28] 黃秉鈞、詹政書，高亮度LED燈具光學設計分析研究，碩士論文，台灣大學機械工程系研究所，台北，2006。

[12] Gary W. Johnson, Richard Jennings，LabVIEW graphical programming，McGrawHill，2006

[17] 王金樹、吳游皓，LED燈之熱傳系統識別模擬，碩士論文，國立台北科技大學製造科技研究所，台北，2011

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LED燈具照度量測機台之研製

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