Method and system for the determination of anemometric, barometric and clinometric parameters on board an aircraft

摘要

The method involves measuring the air speed vector, the static pressure, and the impact temperature and then using those values to calculate the other required parameters. The air speed vector is obtained using laser anemometers (1). Each anemometer has a laser, a 4-to-2 axis commutating head, and two processing subsystems (3). The static pressure is measured by sensors (4) each having three inputs which are each connected to a receiver (5). The impact temperature is obtained by probes (6) which are placed in the engine air inputs. The measured data is sent to two processors (7), each associated with one side of the plane. A back-up processor (8) is provided to generate the same parameters using more data. Additionally the three processors receive the data required to calculate ground speed. This data can be obtained from e.g a satellite or a radar.