本研究旨在研發混合煤粒光學影像量測系統，並且將水分含量之偵測建立在同一系統內，使其具有多功能性。混合煤粒是一種具不同大小粒徑且含有微少水分的焦煤，水分多寡關係到焦碳品質、爐體壽命和能源耗用。本系統檢測之粒徑大小介於0.15mm~5mm之間，乃利用Line scan CCD進行影像擷取，來達到煤粒粒子檢測，可取得樣品全部粒徑之大小並進一步分析。此系統中加入了水分的偵測，可在同一系統內進行粒度與水分的分析，使功能更臻完善。此自動化量測系統包括機構模組、影像擷取模組、影像分析處理模組、水分偵測模組及電控驅動模組，經由實驗結果，本系統可自動計算粒徑並予以分級，以了解粒徑分佈狀況，並可同時偵測出混合煤粒水分含量多寡

An on-line optical scanning system with weight measurement device has been developed for mixed coals particle size analysis and moisture determination. Mixed coals particle image is obtained by a line scan CCD camera and analyzed by digital image processing. The developed system is composed of particle separation module, image acquisition module, image processing module, weight measurement module and electronic control module. The main advantage of this system is full inspection (100%) without overlapping or missing of any particles, which improves the area scan charge coupled device (CCD) problems in image acquisition. The particle size distribution, roundness and sphericity of the mixed coals can be obtained by image processing analysis. By measuring weight variation of mixed coals using a load cell before and after heating, the moisture of the mixed coals could be determined. It has been shown that the developed system has a high accuracy, precision, convenience and versatile for some limited size of mixed coals, shape and moisture analysis for the academic and industrial users.

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