Patent application number | Description | Published |
20090289832 | Radial gap measurement on turbines - Radial gap measurement on turbines by a microwave measuring method and an evaluation of a Doppler effect which varies according to the size of the radial gap is described. At least one radar sensor embodied as a transmission and reception unit is provided in the wall of a turbine housing which is radially oriented towards the centre of the turbine. The relative speed of an outer end of a turbine blade, dependent on the size of the radial gap, is evaluated many times in relation to the radar sensor during the passage of the blade end past the same, and the course of the relative speed over time on the zero crossing constitutes a measure for the radial gap on the basis of the relation between the absolute value of the relative speed and the incline thereof in the zero crossing. | 11-26-2009 |
20130195211 | Method and device for processing signals - An input signal is routed from a first component to a second component. The second component multiplies the frequency of the received signal by at least one component part with a non-linear characteristic curve. | 08-01-2013 |
20140107830 | METHOD AND DEVICE FOR DETECTING PARAMETERS OF A TRAVERSING OR CIRCULATING MATERIAL WEB IN A MATERIAL PROCESSING MACHINE - A method detects parameters of a traversing or circulating material web in a material processing machine. At least one oscillation parameter of at least one transverse oscillation which occurs on the material web is detected contactlessly by at least one sensor. At least one parameter of the material web which results from said oscillation parameter is determined. Furthermore, a device detects parameters of a traversing or circulating material web in a material processing machine. | 04-17-2014 |
20140266861 | ARRANGEMENT TO MEASURE THE DEFLECTION OF A BLADE OF A WIND TURBINE - An arrangement to measure deflection of a blade of a wind turbine is provided. A transmitter is arranged close to the tip end of the blade, while a receiver is arranged close to the root end of the blade. The transmitter and receiver are prepared for a wireless transfer of a monitoring signal, which is sent from the transmitter to the receiver. A monitoring system is arranged close to the root end of the blade. The monitoring system is adapted to generate the monitoring signal. The monitoring system is connected with the transmitter by a cable-bound communication line, thus the monitoring signal is transferred from the monitoring system to the transmitter. The monitoring system is connected with the receiver, thus the monitoring signal is transferred from the receiver to the monitoring system. The monitoring system is adapted to determine the deflection of the blade based on the transferred monitoring signal. | 09-18-2014 |
Patent application number | Description | Published |
20110150647 | Detection of Deformation of a Wind Turbine Blade - An arrangement for detecting bending deflection of a wind turbine blade is provided. The arrangement for the wind turbine includes a radio transmitter and a linear antenna array assigned to the radio transmitter. The radio transmitter is mounted on the blade tip and emits a signal. The antenna array is mounted on the rotor of the wind turbine in a co-rotating manner and receives the signal. On the basis of the transit times of the signal from the rotor to the individual antennas of the array, the position of the radio transmitter relative to the array is determined. In the event of blade deflection, for example when a high wind load is present, the relative position changes which is detected by the arrangement. | 06-23-2011 |
20120032837 | Network analyzer with an n-port network having at least two ports for measuring the wave parameters of a measurement object - A network analyzer includes an n-port network with two ports for measuring wave parameters of a measurement object. Each port has a feed for a radio-frequency signal from a signal source. Signal components of the radio-frequency signal fed into the respective port are reflected at the measurement object and the signal components of one or more radio-frequency signals fed into at least one other port are transmitted through the measurement object to the respective port are measured as wave parameters. The two ports are supplied with different radio-frequency signals, wherein frequencies or frequency bands are offset with respect to one another by a frequency offset. Reflected and transmitted signal components of the radio-frequency signals are measured at the same time at the two ports. | 02-09-2012 |
20120147940 | Method and Arrangement for Measuring Delay of a Signal Between Two Stations of the Arrangement - A method and an arrangement for determining the delay of a signal between a first station and a second station of the arrangement, with the aim of determining the spatial distance between the stations. A first series of first signal pulses is generated in the first station at a first pulse repetition rate f | 06-14-2012 |
20120200444 | Arrangement to measure the deflection of an object - A reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal. | 08-09-2012 |
20120268141 | METHOD AND ARRANGEMENT FOR MEASURING THE SIGNAL DELAY BETWEEN A TRANSMITTER AND A RECEIVER - A method for determining a delay τ of a signal between a UWB transmit unit and a FSCW receiver unit includes: generating a pulsed transmit signal S | 10-25-2012 |