| 摘要 |
PURPOSE:To simplify the constitution and to make the configuration compact, by converting two kinds of optical pulse-width signals into an air-pressure-signal through the first and second optical energy absorbing members, the first and second pneumatic switches and a tank. CONSTITUTION:The optical energies of two kinds of optical pulse-width signals including the data in time lengths from optical fibers 11 and 12 are absorbed by absorbing members 21 and 31. One end of a first pneumatic switch 2 is connected to an air pressure feeding source 4, and the other end is connected to a tank 6. One end of a second pneumatic switch 3 is opened, and the other end is connected to the tank 6. The part between the two terminals of the switches 2 and 3 is turned ON and OFF by the deformation of the members 21 and 31 by the absorption of the optical energy. An air pressure signal, which is associated with the optical pulse-width signal, is outputted from an output terminal 5 through the tank 6. |
