| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas flow measurement method and its device of a fuel cell (in a gas-flow channel in a direction toward inside a cell face and/or in a diffusion layer) free from flow-channel clogging and capable of discerning a tip of a flow. <P>SOLUTION: The gas flow measurement method and device in the fuel cell makes gas with an alkaline or acidic matter contained flow in a fuel cell model 19M (1) equipped with electrolyte, a separator, and a collector, with the separator 18M made of a transparent plate and with either the separator or the collector coated with a pH indicator, images changes of colors of the pH indicator at the time of gas flow with a camera 2, and analyzes the gas flow through an image process by taking in the images taken with the camera 2 into a computer 3. The image analysis by the computer (2) includes downloading of images, background subtraction, contour extraction, and background addition. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
