| 摘要 |
<p>Measurement of air speed is essential for safe flight of any aircraft. For about 100 years Pitot-Static system has been performing this task despite its limitations in aircraft application. This invention aimed at bringing in an equally robust but more reliable air speed measurement system that should replace Pitot-Static system or at least work as a standby option. The invention makes use of two temperature sensors instead of a Pitot-Static Probe. The air speed is calculated using simple Fluid Mechanics principles taking air temperatures sensed by the two sensors as inputs. Apart from air speed, static temperature, total temperature and Mach number can also be obtained as outputs. Since temperature sensors are already in use for True Air Speed calculation and functioning of engines, it is a known device to the aviation community and should be easy to adopt. The system can also be used in any non-aircraft platform for flow speed measurement.</p> |
