摘要:
Disclosed is a method of condition monitoring a WTG (Wind Turbine Generator) comprising acts of collecting and storage of at least the following data sets together with their time stamps. Collection of generator power production measurements. Collection of mechanical status measurements. Collection of generator torque measurements. Collection of nacelle direction measurements. Collection of meteorological conditions measurements. The method compromises a further act of synchronizing the data sets. The invention also relates to a system for condition monitoring a WTG. The invention further relates to a system for visually inspecting a WTG.
摘要:
A method, a computer program product, and a system for determining an optical parameter of an optical lens as well as a related method for producing the optical lens by adjusting the optical parameter are disclosed. The method includes: capturing an image picturing the optical lens by using a camera; and determining an optical parameter of the optical lens by processing the image, wherein the camera generates a signal related to a position of a focus, and the optical parameter of the optical lens is determined by using the signal related to the position of focus. The method and the system allow determining the optical parameter of the optical lens in a direct fashion by applying the signal related to the position of the focus as generated by the camera as a measured value for the optical parameter of the optical lens.
摘要:
A method for monitoring operational states and for determining outage probabilities of overhead power line systems from the air using an aircraft 1, and an aircraft provided to this end are described. To this end, the aircraft 1 in the form of a helicopter is equipped with a sensor system 14 for measuring physical properties of the overhead power line systems with high-resolution digital cameras 13 for image data and with a high-resolution laser scanning system 12 for detecting ambient conditions. The sensor system 14, the digital cameras 13 and the laser scanning system 12 are coupled to satellite navigation systems, apart from GPS, with the detected data being assigned to one another and correlated with one another in relation to both space and time. Monitoring is implemented by way of a single fly-past using the aircraft 1 on the basis of a specified flight profile, and the determined data are supplied to a processing unit which, following an appropriate evaluation, directly indicates or outputs necessary repairs and/or maintenance recommendations on an output unit.
摘要:
A wind tunnel for a motor vehicle, with a fan, a test section, through which an air stream generated by the fan can flow, a recording device for recording different motor vehicles within the test section, and a testing device for determining aerodynamic characteristics of the motor vehicle. The wind tunnel also includes an optical sensing device for sensing an outer contour of the motor vehicle recorded by the recording device, an evaluating unit and a linking unit. The evaluating unit determines a vehicle configuration from the outer contour of the motor vehicle sensed by the optical sensing device. The linking unit links the vehicle configuration of the motor vehicle determined by the evaluating unit with the test results determined by the testing device.
摘要:
A method of inspecting a structure including a photonic material using a movable inspection apparatus includes irradiating a section of the structure, receiving radiation diffracted from a photonic material in the section of the structure, determining a deformation of the photonic material as a function of at least one of i) an intensity of the radiation received ii) a position of the radiation received and iii) a wavelength of the radiation received, and determining if a magnitude of the deformation is higher than a threshold. If the magnitude of the deformation is higher than the threshold data is stored concerning the deformation of the photonic material; contrarily, if the magnitude of the deformation is not higher than the threshold: the inspection at the location of the photonic material is stopped and the inspection apparatus is moved in order to inspect another section of the structure.
摘要:
A camera captures an image of a structural bearing, such as a hanger bearing or a rocker bearing. Additionally, an instrument detects a temperature. A computing system determines, based on the temperature, an expected angle of the bearing relative to a base line. The computing system also determines an actual angle of the bearing relative to the base line. The computing system superimposes a first line on the image, the first line indicating the expected angle. Furthermore, the computing system superimposes a second line on the image, the second line indicating the actual angle.
摘要:
A conveyor and a sensing system for sensing various conditions on an advancing conveying bodies of a conveyor. The conveyor includes an array of sensing elements embedded in the conveying bodies to measure belt conditions. The sensing elements form parts of passive resonant circuits that each include a capacitor and an inductive coil. The capacitor or the inductive coil can be a sensing element. Measuring circuits external to the belt are inductively or capacitively coupled to the resonant circuits in the conveying bodies as they pass closely by. The sensing elements change the resonant frequency of their resonant circuits as a function of the sensed conditions. Frequency detectors in the measuring circuits measure that frequency change and convert it into a functionally related value used to determine a conveyor condition. Exemplary conditions include temperature, pressure, humidity, spillage, and product weight.
摘要:
The invention relates to an assistance device for remote diagnostics during verification of the state of an aircraft engine, carried out in situ by at least one operator with an endoscope used to capture images of the engine and to take measurements intended to be transmitted to at least one remote terminal used by at least one remote expert, with the aim of performing a collaborative analysis of the images and the measurements. The device according to the invention further comprises a portable housing controlled by the operator and equipped with a software module intended for generating an operational context as a function of location data provided by a GPS, weather data from the endoscopy location, and data on the communications network.
摘要:
A method and device for remotely detecting structural integrity using reflections or scattering from windows or other portions of a structure. The long geometrical lever arm of a reflection on a building window, when viewed with suitable instruments, produces detectable modulation in the reflected light from minute vibrational changes upon the glass surface, revealing fundamental resonances and structural changes and failure in the building housing the window. By sensing very small changes in intensity and polarization, information may be obtained on fundamental resonances and structural changes, including failure or imminent failure of the structure.
摘要:
Methods for manufacturing strain sensors on turbine components include providing a turbine component comprising an exterior surface, depositing a ceramic material onto a portion of the exterior surface, and ablating at least a portion of the ceramic material to form a strain sensor comprising at least two reference points.