摘要:
La présente invention concerne un dispositif de mesure d'au moins un paramètre de vol tel que la vitesse, l'angle de dérapage ou l'angle d'incidence ou tout autre paramètre en dépendant d'un aéronef (4) comprenant un radôme (8), comprenant des systèmes permettant de mesurer la déformée de la paroi (10) due aux efforts exercés par l'air sur le radôme (8) et un calculateur (41) permettant de calculer à partir des mesures de déformée obtenues par les dits systèmes le ou lesdits paramètres de vol souhaités. Les systèmes comprennent au moins une fibre (6) optique portée par le radôme (8) pourvue de réseaux de Bragg, chaque fibre comportant plusieurs réseaux de Bragg distribués sur la longueur de la fibre de manière à les répartir sur le radôme une fois la fibre installée.
摘要:
The invention relates to a sensor system for an aircraft (500) for determining the air velocity of air flowing past the aircraft. The sensor system comprises a first sensor (101) and an evaluation device (102). The first sensor is configured for being arranged at the structure (501) of the aircraft and determines a first response of the structure to a first local pressure fluctuation of a boundary layer of the air flowing past the aircraft. Furthermore, the first sensor generates a first signal on the basis of the determined first response of the structure. The evaluation device is configured for processing said first signal and for determining the actual air velocity on the basis of the first signal. The invention also relates to an aircraft, a method, a program element and a computer-readable medium.
摘要:
A wind speed and direction measuring device (1) comprising a base member (2), an intermediate element (3) and a wind exposed top section (4), wherein the base member is fixedly joined to a lower end (3') of the intermediate member and the top section consists in a circularly symmetrical element fixedly joined to an upper end (3") of the intermediate member, sensors (5) adapted to measure a physical effect, created by the wind, applied to said wind exposed top section in order to generate signals depending on the speed and direction of the wind altering said physical effect, and an electronic calculation unit adapted to calculate the speed and the direction of the wind on the basis of said signals, wherein the physical effect on said wind exposed top section is the mechanical force of the wind tending to pivot said top section and said intermediate section with respect to said base member, and wherein said sensors are stress, position or movement sensors located on a force transmission line between said intermediate member and said base member.
摘要:
A method for re-calibrating an anemometer (110) of a wind turbine (100) is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable (2010); comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value (2040); and adjusting a calibration function of said anemometer on the basis of said determined difference (2050).
摘要:
L'invention concerne la vérification d'anémomètres (2) avec partie tournante (3) comportant une turbine à coupelles (6). Grâce à des moyens motorisés (19) d'entraînement en rotation, la partie tournante (3) de l'anémomètre (2) à tester est lancée en rotation à une vitesse initiale (Vo) définie. Puis on laisse librement tourner la partie tournante (3) en mesurant sa vitesse de rotation (V) résiduelle à au moins un instant (T). La vitesse (V) ainsi mesurée est comparée à une valeur de référence pour le même instant (T). L'invention est notamment applicable au contrôle des anémomètres installés sur des grues de chantier.
摘要:
Measuring device and method for measuring wind flow or fluid flow. The measuring device comprises a focused light source (5) and a position detecting Position Sensing Detector (12) (PSD), where a poleshaped sensing means (3) projects from a housing (2). The poleshaped sensing means (3) is guided through a fastening device (4) providing elastic damping. The focused light source (5) is arranged in a part of the sensing means (3). The PSD (12) is arranged such that it can be hit by the light beam from the light source (5).
摘要:
A vertical marking device is described, capable of being assembled in any area where needed, by means of which a precise indication of the direction and the speed of the prevailing wind is provided for the purpose of knowing the degree of risk its speed implies. The marking device has a vertical support pole to which a rotating bushing is associated with respect to the pole shaft, supporting a vertically positioned indicator element or sign, which in turn supports one or more anemometric arrows, preferably two, one on each side of the body, joined together and capable of simultaneous rotation in the vertical plane by means of pivoting with respect to the pin which joins them on their upper respective end, and which crosses through the body in a position close to its innermost, upper corner. The body of the indicator element or sign incorporates an arrow element on its upper horizontal edge, with the arrowhead towards the inside, and it also has the lateral sides with impressions dividing them into differently colored sectors, also being able to include direct reading numerical values.