Abstract:
A detection device includes: a light source that emits, toward an object, light of a first wavelength band, and light of a second wavelength band that is less readily absorbed by water than the light of the first wavelength band; a polarization splitter that splits at least one of S-polarized light and P-polarized light from light that has been reflected or scattered at the object; a photoreceptor that receives light reflected or scattered at the object via the polarization splitter; and a control unit that determines a state of the object from information based on light received by the photoreceptor. The light emitted by the light source is random polarized light where the ratio of P-polarized light and S-polarized light is generally uniform.
Abstract:
Le procédé dans lequel on dispose de moyens (1) de mesure de la luminance ayant un certain cône de mesure α, on place les moyens (1) par rapport à la voirie C à une certaine hauteur h et on les oriente par rapport à la localisation de l'observateur selon une certaine direction D, on met en oeuvre les moyens (1) pour mesurer la luminance d'une certaine zone Z de la voirie C à une certaine distance d de la localisation de l'observateur, est caractérisé en ce que, en combinaison : - on sélectionne des moyens (1) de mesure de la luminance ayant un cône de mesure α choisi plus large que normalement, c'est-à-dire supérieur à 2min d'arc dans le plan vertical et à 20 min d'arc dans le plan horizontal, on dispose ces moyens (1) de mesure de la luminance par rapport à la voirie C à une hauteur h choisie moins élevée que normalement, c'est-à-dire inférieur à 1,5m, et on les oriente par rapport à la localisation de l'observateur selon une direction D apte à mesurer la luminance dans une certaine zone Z située par rapport à la localisation de l'observateur à plus courte distance que normalement, c'est-à-dire inférieure à 60m ; - on déplace les moyens (1) sur et le long de la voirie C et, lors de leur déplacement, on les met en oeuvre pour effectuer une mesure de la luminance de la zone Z en correspondance avec le cône de mesure α choisi, la hauteur h choisie et la direction D de mesure choisie, et - au moins lors des mesures on maintient substantiellement constant la hauteur h et la direction D de mesure.
Abstract:
Apparatus and systems, preferably using UV spectroscopy, for the dynamic and continuous detection and quantification of a range of chemicals, particularly pollutants, in the environment, and to the production of a real-time display or map to display chemical levels in the environment are provided. By providing data packets which combine details of pollutants in the atmosphere with very accurate position and temporal information, and real-time map of pollution is provided.
Abstract:
La présente invention concerne les dispositifs permettant d'analyser l'état de surface d'un sol, à partir d'un mobile se déplaçant par rapport à ce sol. Le dispositif selon l'invention se caractérise essentiellement par le fait qu'il comprend des moyens source (10) pour émettre un faisceau (11) de rayonnement de type électromagnétique vers un point (13) de la surface du sol, des moyens de réception (14) aptes à recevoir un faisceau (35,37) du même type et aptes à délivrer des signaux représentatifs du faisceau reçu réfléchi (35) sur le point, des moyens de traitement (60) de ces signaux, et des moyens pour asservir (20) les moyens source en fonction de la vitesse de déplacement du mobile de façon que, sur au moins une portion de ce déplacement, la tache (13) que fait le faisceau sur le sol ait une vitesse sensiblement nulle par rapport au sol. Application : analyse de l'état de surface d'une voie de circulation à partir d'un véhicule, pour discriminer les sols secs, humides, verglacés, etc.
Abstract:
A soil test apparatus for field use comprises structure adapting the apparatus for transport over a field for testing the soil thereof; an infrared radiation generator (20) for producing infrared radiation at a plurality of predetermined wavelengths, an elongate light carrying member (24) coupled to the infrared radiation generator and extending therefrom for directing infrared radiation onto the soil; and a light detector (26) for detecting infrared radiation reflected from the soil and for producing corresponding electrical signals.
Abstract:
A high-resolution in situ sensing system and method for providing continuous measurements of at least one dissolved analyte including a sample processing cell having at least a first conduit defining a first passage with at least one selectively-permeable wall capable of passing a portion of the sample liquid into a processing, fluid. The at least one selectively-permeable wall substantially resists flow of another portion of the sample liquid therethrough. Processing fluid is directed through the first conduit while moving the sample liquid and the reagent fluid relative to each other in one of a stationary, concurrent or a countercurrent flow relationship to achieve either partial or full equilibration between the sample liquid and processing fluid to generate at least partially equilibrated reagent fluid and a processed sample in a substantially continuous manner.
Abstract:
An inspection system for inspecting an internal component of a machine includes a remote controlled vehicle constructed to fit inside a desired portion of the machine; a controller operative to control an operation of the remote controlled vehicle; a tether coupled to the controller and to the remote controlled vehicle, wherein the tether is operative to transmit control signals from the controller to the remote controlled vehicle; and an imaging device extending from a front portion of the remote controlled vehicle and operative to view the internal component. The imaging device has a flexible articulating tip spaced apart from the front portion of the body.
Abstract:
One embodiment provides a method for identifying a target object of a pipe wall, including: positioning a pipe inspection robot within a pipe; emitting, using a terahertz (THz) beam source of the pipe inspection robot, a laser beam towards a target object; receiving, using a THz receiver of the pipe inspection robot, THz data related to the target object; analyzing, using a processor, the THz data; and determining, based on the analyzing, an identity of the object. Other aspects are described and claimed.
Abstract:
The tunnel lining surface inspection system capable of measuring the three dimensional shape of the surface of the tunnel lining surface to precisely determine whether cracking has a risk of leading to flaking, by the light section method using the photography means and the slit laser beam projecting means, mounted in the vehicle, while the vehicle is traveling in the tunnel, and the vehicle used in the system are proposed. Image processing is performed to obtain the image used for inspecting the tunnel lining surface, by using the result of the three dimensional shape measurement of one side face of the tunnel lining surface, measured while the photography means/slit laser beam projecting means arrangement means is fixed to the first measurement position, and the result of the three dimensional shape measurement of the other side face of the tunnel lining surface, measured while the photography means/slit laser beam projecting means arrangement means is fixed to the second measurement position.