Aircraft system monitoring air humidity to locate updrafts
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64C-031/02
B64C-003/18
G05D-001/00
출원번호
US-0985940
(1997-12-05)
발명자
/ 주소
Cocatre-Zilgien Jan Henri
인용정보
피인용 횟수 :
19인용 특허 :
10
초록▼
An aircraft system intended for gliders and low power-to-weight aircraft, to aid the pilot in locating updrafts associated with the buoyancy of humid air in the convective layer of the atmosphere, namely moist thermals. The system comprises a pair of laterally spaced hygrometers, generally at the wi
An aircraft system intended for gliders and low power-to-weight aircraft, to aid the pilot in locating updrafts associated with the buoyancy of humid air in the convective layer of the atmosphere, namely moist thermals. The system comprises a pair of laterally spaced hygrometers, generally at the wingtips. Four types of hygrometer units are described; resistive, piezoelectric, spectrometric, and capacitive. Humidity data is transmitted to the cockpit by telemetry links, of which four types are also described; by dedicated wiring, by carrier current using wingtip position lights wiring, by modulated infrared beams, and by low-power radio waves. The system monitors the difference of humidity between left and right sensors, and also the rate of change of humidity of one or both sensors as a function of time. This lateral and eventually axial differential humidity information is presented to the pilot via a visual interface such as bargraph displays and computer monitors, or via an audio interface producing sounds of variable pitch or beat in one or more cockpit loudspeakers, or via both interfaces simultaneously. For humidity measurements inherently sensitive to temperature, such as relative humidity, either the hygrometers are heated, or their temperature is also measured so that temperature effects can be subsequently removed by computation. This system enables the pilot to get a better understanding of the thermodynamics of the convective layer of the atmosphere.
대표청구항▼
[ It is claimed:] [1.] An aircraft system for use in a slow-flying aircraft selected from the group consisting of gliders, sailplanes, paraplanes, motorgliders, ultralights, low power-to-weight airplanes, and airships, comprising:a left air humidity sensor mounted as laterally as possible on the por
[ It is claimed:] [1.] An aircraft system for use in a slow-flying aircraft selected from the group consisting of gliders, sailplanes, paraplanes, motorgliders, ultralights, low power-to-weight airplanes, and airships, comprising:a left air humidity sensor mounted as laterally as possible on the port side of said aircraft,a right air humidity sensor mounted as laterally as possible on the starboard side of said aircraft,a left telemetry link carrying data from said left air humidity sensor to a generally central location of said aircraft,a right telemetry link carrying data from said right air humidity sensor to said central location,an electrical circuitry, located at said central location, collecting left and right air humidity data from said left and right telemetry links, respectively, and measuring a lateral air humidity difference between left and right air humidity data,a pilot interface in the cockpit of said aircraft, functionally connected to said electrical circuitry, providing the pilot of said aircraft with an indication of said lateral air humidity difference,whereby the pilot can identify which side of said aircraft is exposed to moister air, and can steer said aircraft towards said moister air in search of thermals, plumes, and bubbles of rising air that may be associated with said moister air.
연구과제 타임라인
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