When one stream of fluid is permitted to impinge on another, direction of flow changes and the tendency of a fluid to strike the wall also changes. This concept gives rise to a new engineering system known as ‘fluidics. The term fluidics is the contraction of the words fluid and logic. Tremendous progress has been made in last twenty years in design and application of fluidic devices.
The current interest in fluidics for logic and control function was launched by the U.S Army’sHarry Diamond Laboratories. In March 1960 this laboratories invented the first fluid amplifier. This work was later expanded through a series of research and development contracts and the work reported in this section was sponsored by the U.S Airforce.The environmental capability of fluidic devices permits direct measurement of required control parameters within the engine.
These devices are more economical, faster and smaller than hydraulic control elements employing moving parts such as valves etc. Fluid devices have no moving parts hence they are more reliable and have long life. Fluidics is now offering an alternative to some other devices being operated with the help of electronics. It can operate where electronic devices are unsatisfactory, such as high temperature, humidity, in presence of severe vibrations, in high fire risk or where ionizing radiations are presents.Recommend this topic