摘要:
The invention relates to a method for stabilising the spectrum of a pulsed coherent optical source that comprises controlling the offset frequency ω 0 and the repetition rate ω r in order to stabilise the frequencies of the comb lines constituting the optical spectrum thereof. The method comprises forming, from the pulsed coherent optical source (S 1 ), a beam that is directed onto a reference resonant optical cavity (CR), and using the signal generated by the reference resonant optical cavity (CR) for controlling the offset frequency ω 0 or the repetition rate ω r , and probing, using a comb line, an atomic or molecular transition (AMT) in order to generate a driving signal for the repetition rate ω r or the offset frequency ω 0 .
摘要:
A smart label is provided that can be affixed on or integrated in an object. The smart label is able to provide an electrical signal indicative of the applied pressure or force and/or the position of the applied pressure or force at a touch point on the object to which the label is affixed. The smart label comprises a layer structure (1) and a detector system (2). The layer structure (1) comprises at least a stack of a first, a second and a third layer (L1,L2,L3), whereby the first and third layers (L1,L3) each comprise a flexible, electrically conductive or semiconductive material and at least two electrodes (E) for connecting the layers to the detector system (2). The second layer (L2) comprises a flexible, deformable and compressible material and separates the first and third layers (L1,L3). The second layer (L2) is electrically nonconductive or electrically conductive but less conductive than the first and third layers (L1,L3). The at least two electrodes (E) from the first and third layers (L1,L3) are arranged along one side of the layer structure (1).
摘要:
A monitoring device (1) worn by a user comprising a heart rate sensor (3) for delivering a sensor cardiovascular (CV) signal, a signal processing device (5) for correcting artifacts due to user's motion in said sensor CV signal, and a motion sensor (4) delivering a motion reference signal; the motion sensor (4) having a main function for determining and outputting a signal representing the level of activity of the user, and an auxiliary function for controlling said signal processing device (5). The monitoring device may be disposed in a headband (2) worn on the user's head. The monitoring device may comprise the monitoring of other physiological signals such as SPO 2 .
摘要:
The present invention discloses an X-ray imaging device (100) comprising an X-ray absorber (105) that comprises a plurality of semiconductor layers. The plurality of semiconductor layers comprise a substrate (110) having a backside; and at least one absorption layer (120,130,140,150) adapted to absorb at least one X-ray photon impinging on the at least one absorption layer that is adapted to correspondingly generate in response to the at least one impinging X-ray photon at least one electron-hole pair; and a readout unit (310), wherein the readout unit is operatively coupled to the X-ray absorber (105) such to enable readout of the at least one electron-hole pair. Additional and alternative embodiments are described and claimed.
摘要:
The invention relates to a floating solar platform comprising a bridge (10, 5, 21) connected to buoyancy elements (11), means (14, 23) for collecting received solar energy, said means being associated with said bridge and placed thereon, means (16, 24) for converting this energy, means (19) for storing the product of this conversion, and first propulsion means (12) for moving said platform to sites where it can benefit from optimum sunshine. The platform further includes means for controlling its paths, which means act on said propulsion means and include a navigation system associated with an algorithm for predictively optimizing the position in terms of latitude and longitude, taking into account the local meteorological conditions or particular logistic data for the optimum choice of its location.
摘要:
The present invention relates to an isotropic zero-order diffractive colour filter, to a method to manufacture an embossing tool and to a method to manufacture such a filter. The zero-order diffractive colour filter comprises diffractive microstructures and a wave-guiding layer, wherein - the diffractive microstructures possess a short range ordering over at least four times the period of the microstructures, and - the diffractive microstructures possess a long range disordering over length scales of more than 100 µm.
摘要:
L'invention concerne un procédé de détermination de la position d'un objet par rapport à une position de référence. Il comporte les principales opérations suivantes : - association à cet objet d'un motif périodique bidimensionnel (11) formé de marques (17, 18) disposées régulièrement selon une grille orthogonale, d'axes X et Y, à lignes et colonnes, - irradiation dudit motif au moyen d'ondes électromagnétiques, - captation des ondes réémises par le motif pour obtenir une image de leur répartition spatiale, - élaboration de deux signaux de marquage périodiques (Mx, My) respectivement représentatifs de cette image selon lesdits axes, et - comparaison de ces signaux à des références représentatives de ladite position de référence afin de déterminer le décalage de position de l'objet selon les axes X et Y par rapport à cette position de référence.