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Real time image digitizing system applied to air bubble measurement
Authors: C. Vigneault, B. Panneion, G.S.V. Raghavan
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Download file: https://library.csbe-scgab.ca/docs/journal/34/34_2_151_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 34 (1992)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/34/34_2_151_raw.pdf
DOI:
Description: Bubble size is an important parameter in the determination of its behaviour in fermentation or air stripping pro cesses used in agriculture and food industries. A method based on digital image analysis was developed to automate the measurement of bubble size and vertical velocity in a non-intrusive manner. The bubbles having a diameter varying from 0.3 to 4.0 mm were detected and measured using a thresholded digitized image. The image system was calibrated by comparing diameters measured by the camera system to the ones deduced from gas flow rate and bubble production rate measurements for both fixed and moving capillary tube bubble generators. The differences between the results obtained using these two methods of measurement were less than 0.05 mm for each diameter measured and were not correlated to the bubble size. Fur thermore, the results from the two methods of measurement were not significantly different. Vertical velocity data were compared to pub lished data.
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Citation: C. Vigneault, B. Panneion, G.S.V. Raghavan 1992. REAL TIME IMAGE DIGITIZING SYSTEM APPLIED TO AIR BUBBLE MEASUREMENT. Canadian Agricultural Engineering 34(2):151-155.
Volume: 34
Issue: 1
Pages -
Contributor:
Date: 1992
Technical field:
Conference name:
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
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Other files:
DOI:
Description: Bubble size is an important parameter in the determination of its behaviour in fermentation or air stripping pro cesses used in agriculture and food industries. A method based on digital image analysis was developed to automate the measurement of bubble size and vertical velocity in a non-intrusive manner. The bubbles having a diameter varying from 0.3 to 4.0 mm were detected and measured using a thresholded digitized image. The image system was calibrated by comparing diameters measured by the camera system to the ones deduced from gas flow rate and bubble production rate measurements for both fixed and moving capillary tube bubble generators. The differences between the results obtained using these two methods of measurement were less than 0.05 mm for each diameter measured and were not correlated to the bubble size. Fur thermore, the results from the two methods of measurement were not significantly different. Vertical velocity data were compared to pub lished data.
Keywords:
Résumé:
Mots-clés:
Citation: C. Vigneault, B. Panneion, G.S.V. Raghavan 1992. REAL TIME IMAGE DIGITIZING SYSTEM APPLIED TO AIR BUBBLE MEASUREMENT. Canadian Agricultural Engineering 34(2):151-155.
Volume: 34
Issue: 1
Pages -
Contributor:
Date: 1992
Technical field:
Conference name:
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type:
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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