| 摘要 |
PURPOSE:To enable instantaneous, direct and continuous measurement of a change in the color of a soln. by positioning the open ends of two optical fibers oppositely to each other to constitute a slit part and to form a light path, and connecting the other ends to a light source and a photoelectric tube. CONSTITUTION:Two multiglass fibers 2, 2', of which the ends on one side are gently bent to 90 deg. and are housed in three-dimensional cells 3, 3' and the open ends 4, 4' are positioned oppositely apart at 2-4mm. space from each other, are inserted into a colored soln. The light from a light source 5 is made incident to the other end of the fiber 2 and the other end of the fiber 2' is connected to a photoelectric tube 6. The outside of the cells 3, 3' is made black to shut off the incidence of stray light. Continuous measurement and continuous recording are made possible according to the above-mentioned constitution by measuring directly the change in the color of the colored soln. with the velocity of light. |
