2.4.4 Summarized Method Usage 2.2: Comparison table for the photography and Spraytec method Photography Method Spraytec Method Low Low level required Medium Medium User friendly Manual Automatic Calibration Large and adjustable with Fix laser beam size (10mm) Area of interest different camera lens. Work space Small Huge required Came with the equipment Not provided Working Bench and very stable but heavy Spraytech software with the Third party software such as Data processing function of the data and J” program “labview” “Image acquisition, average etc. Can be easily done by Required an image processing using the equipment software and programme software, easy to be code. operated. Process manually with Rapid results and process Post Processing processing software and automatically by the programme. software. Raw image or data can be No raw data available to review. review. Yes, transparent Yes, transparent Sampling chamber Not suitable for very high Can be solved with the image density bubbles Bubble processing software. measurement. Summary of the photography method and Spraytec method are listed in the Table 2.2. The bubble sizing measurement method mainly depends on the uses, availability, expertise and the application, different methods can be used to obtain the bubble size distribution and upon significant inference, accurate bubble size distributions can be
2.4.4 Summarized Method Usage Photography Method Spraytec Method level required Low Low User friendly Medium Medium Calibration Manual Automatic Area of interest Large and adjustable with different camera lens. Fix laser beam size (10mm) Work space required Small Huge Working Bench Not provided Came with the equipment and very stable but heavy Data processing program Third party software such as “labview” and “Image J” Spraytech software with the function of the data acquisition, average etc. Post Processing Required an image processing software and programme code. Process manually with processing software and programme. Raw image or data can be review. Can be easily done by using the equipment software, easy to be operated. Rapid results and process automatically by the software. No raw data available to review. Sampling chamber Yes, transparent Yes, transparent Bubble Can be solved with the image processing software. Not suitable for very high density bubbles measurement. 2.2: Comparison table for the photography and Spraytec method Summary of the photography method and Spraytec method are listed in the Table 2.2. The bubble sizing measurement method mainly depends on the uses, availability, expertise and the application, different methods can be used to obtain the bubble size distribution and upon significant inference, accurate bubble size distributions can be
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