A total of 13 Japanese companies are exhibiting at this year's Paris air show, as part of the Society of Japanese Aerospace Companies (SJAC). Among the more interesting exhibits is an Optical Blade Vibration Monitoring (OPT-V) system, produced by Ishikawajima-Harima Heavy Industries (IHI). It uses laser probes to measure turbofan-engine blade-tip deflections, including high-pressure turbine blades.

The SJAC stand, will be displaying a hot-film senor to measure air-flow behaviour on engine blades and vanes. The sensor can be applied to the blade in two forms, direct deposition or stick-on. IHI will also be showing it liquid-oxygen and liquid-hydrogen turbo-pumps used in the LE-7 first- and LE-5A second-stages of Japan's H-II rocket. The rocket is capable of launching a 2t-class satellite into geostationary orbit.

Source: Flight International