Reply to “Comment on ‘Fiber optic reflectometer for velocity and fraction ratio measurements in multiphase flows’ ” [Rev. Sci. Instrum. 74, 3559 (2003)]
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A reply of Kuang-An Chang, Ho-Joon Lim, and Chin B. Su to a comment on 'fiber optic reflectometer for velocity and fraction ratio measurements in multiphase flows' was presented. The fiber optic probe used for the reflectometer had an overall diameter of 125 μm, but the core diameter where the light was concentrated was only 8 μm. In fiber optic technique, the manufacturing of the sensor is extremely easy and cheap compared to resistant-type probe. Both the fiber optic and resistant probes suffer from the problem caused by surface tension during the drying process encountering gas bubbles in a liquid flow.
author list (cited authors)
Chang, K., Lim, H., & Su, C. B.