A PRIMARY STUDY FOR MEASURING THE TEMPERATURE DISTRIBUTION AND VOID FRACTION IN A GAS-LIQUID MIXTURE USING OPTICAL METHOD

• Main Authors: Lee, Chan-Chung, 李建中
• Other Authors: Chien, Chi-Hui
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/63936956507830521693

碩士 === 國立中山大學 === 機械工程研究所 === 84 === The main aim of this study is to develop a holographic interferometry technique which can measure the temperature distribution and void fraction in a gas-liquid mixture. The deflection caused by refraction and the change in optical path length due to the thickness of the glass or acrylic plate, that are the most important sources of errors, were discussed and estimated. Besides, the fuzzy theory and image processing were applied to analyze the fringe patterns for the sake of increasing the reliability and systematization. Finally, by comparing experimental results with the calibrated values, it can be proved that the proposed technique is satisfactory and performable.