Abstract: A system for monitoring a traffic situation includes at least one radar sensor unit for recording environmental data in a monitoring region of the radar sensor unit. A central processor evaluates the environmental data from the radar sensor unit and determines the traffic situation within the monitoring region based on the environmental data. A reference signal unit for outputting a reference signal to the radar sensor unit is configured to modulate a radar signal emitted by the radar sensor unit and to reflect a modulated radar signal back to the radar sensor unit as a reference signal. The processor identifies the modulated radar signal as a reference signal from the reference signal unit and recognizes a malfunction of the radar sensor unit if a reference signal is not received by the radar sensor unit.

Abstract: Detection for localizing at least one particle moving in a flow includes emitting a transmission signal by a transmitter, and receiving a reflected reception signal. The reflected reception signal is frequency and phase modulated in comparison with the transmission signal. The reflected reception signal is convolved with at least one kernel representative of a conjugate estimated channel pulse response. A reconstructed particle position function is formed, and the position of the particle is determined from the reconstructed particle position function.

Abstract: A traffic monitoring system for a traffic area with parking surfaces for vehicles or a freely arrangeable row of vehicles includes overhead radar sensors oriented towards the area for capturing a chronological sequence of digital radar images thereof. An analyzing unit detects vehicles parked on the area and ascertains locations and dimensions thereof from the captured sequence and determines an occupancy state of the surfaces from a data comparison of the ascertained locations and dimensions of parked vehicles with configured geodata of surfaces. The parking surface is occupied or free for a vehicle, and a parking surface for a freely arrangeable row of vehicles is occupied or provided by one or more free parking spaces. An image output unit outputs a map view of the area with marked surfaces and the current occupancy state of the surfaces. The traffic monitoring system allows a more effective monitoring of the area.

Abstract: The invention relates to a sensor (300) for determining a dielectric property of a medium (205). The sensor (300) has a substrate (301, 302), which has at least one via (203, 204), and a waveguide (12), which is arranged so as to be planar in relation to an upper surface of the substrate (301). The waveguide (12) can be connected to an analysis device (20) by means of the at least one via (203, 204). Furthermore, the waveguide (12) is designed to receive an input signal from the analysis device (20) and to output an output signal to the analysis device (20). When of the waveguide (12) is in contact with a medium (205), properties of the input signal and of the output signal are indicative of the dielectric property of the medium (205). The arrangement of the waveguide (12) so as to be planar in relation to the substrate (301) enables larger measurement ranges and improved measurement accuracies. Furthermore, a compact construction is achieved by the planar structure.

Abstract: The invention relates to an inductive charging device having at least one inductive charging coil wound about a coil axis, and an electric or dielectric antenna, which is arranged at a location that is shifted parallel to the coil axis in relation to a location of a region of the charging coil, a location within the at least one charging coil, or a location between the charging coils. The electric vehicle and the charging station each have such an inductive charging device. With the method, one or two such inductive charging devices are used, wherein by means of the inductive charging coils, energy is transmitted, and by means of the antennas, communications data are transmitted.

Abstract: A traffic monitoring system for a traffic area with parking surfaces for vehicles or a freely arrangeable row of vehicles includes overhead radar sensors oriented towards the area for capturing a chronological sequence of digital radar images thereof. An analyzing unit detects vehicles parked on the area and ascertains locations and dimensions thereof from the captured sequence and determines an occupancy state of the surfaces from a data comparison of the ascertained locations and dimensions of parked vehicles with configured geodata of surfaces. The parking surface is occupied or free for a vehicle, and a parking surface for a freely arrangeable row of vehicles is occupied or provided by one or more free parking spaces. An image output unit outputs a map view of the area with marked surfaces and the current occupancy state of the surfaces. The traffic monitoring system allows a more effective monitoring of the area.

Abstract: The invention relates to a circuit carrier (11), comprising a digital circuit, which contains at least two components (12, 14) that are electrically connected to each other (19, 21, 20). Additionally, an electric shield (24) is provided. According to the invention, the electric shield (24) and a conducting path (21) for electrically connecting the components (12, 14) are realized by means of a single layered composite (18). In particular, the electric shield (24) and the conducting path (21) are formed by the same electrically conductive layer, wherein a hole (25) ensures complete electrical insulation of the conducting path (21) from the shield (24). The invention further relates to a method for producing such a circuit carrier.

Abstract: The present embodiments relate to a device and a method for determining at least one concentration of coal particles in a gas flow flowing through a channel, wherein at least part of the gas flow having coal particles contained therein is measured by at least one microwave sensor and at least one measurement signal characterizing the concentration of the coal particles is provided, wherein an autocorrelation function of the measurement signal is determined and at least one distance value characterizing a distance of a point of the gas flow belonging to the concentration from the microwave sensor is determined in dependence on the autocorrelation function.

Abstract: A local antenna device for transmitting magnetic resonance (MR) signals of a plurality of MR receiving antenna elements to an MR signal processing device is provided. The local antenna device includes a plurality of analog-to-digital converters for scanning the MR signals and converting the MR signals to digital MR data, and a plurality of transmitting antenna elements for wirelessly transmitting the digital MR data to the MR signal processing device by the emission of an electromagnetic field. The local antenna device includes a plurality of transmitting devices for triggering the transmitting antenna elements and a plurality of spacer elements that is arranged and embodied on the local antenna device such that at least a defined minimum emission spacing is produced between the plurality of transmitting antenna elements and articles adjoining the local antenna device in at least one direction of a principal axis of emission of the electromagnetic field.

Abstract: Detection for localizing at least one particle moving in a flow includes emitting a transmission signal by a transmitter, and receiving a reflected reception signal. The reflected reception signal is frequency and phase modulated in comparison with the transmission signal. The reflected reception signal is convolved with at least one kernel representative of a conjugate estimated channel pulse response. A reconstructed particle position function is formed, and the position of the particle is determined from the reconstructed particle position function.

Abstract: The invention relates to an inductive charging device having at least one inductive charging coil wound about a coil axis, and an electric or dielectric antenna, which is arranged at a location that is shifted parallel to the coil axis in relation to a location of a region of the charging coil, a location within the at least one charging coil, or a location between the charging coils. The electric vehicle and the charging station each have such an inductive charging device. With the method, one or two such inductive charging devices are used, wherein by means of the inductive charging coils, energy is transmitted, and by means of the antennas, communications data are transmitted.

Abstract: The present embodiments relate to a device and a method for determining at least one concentration of coal particles in a gas flow flowing through a channel, wherein at least part of the gas flow having coal particles contained therein is measured by at least one microwave sensor and at least one measurement signal characterizing the concentration of the coal particles is provided, wherein an autocorrelation function of the measurement signal is determined and at least one distance value characterizing a distance of a point of the gas flow belonging to the concentration from the microwave sensor is determined in dependence on the autocorrelation function.

Abstract: The invention relates to a sensor (300) for determining a dielectric property of a medium (205). The sensor (300) has a substrate (301, 302), which has at least one via (203, 204), and a waveguide (12), which is arranged so as to be planar in relation to an upper surface of the substrate (301). The waveguide (12) can be connected to an analysis device (20) by means of the at least one via (203, 204). Furthermore, the waveguide (12) is designed to receive an input signal from the analysis device (20) and to output an output signal to the analysis device (20). When of the waveguide (12) is in contact with a medium (205), properties of the input signal and of the output signal are indicative of the dielectric property of the medium (205). The arrangement of the waveguide (12) so as to be planar in relation to the substrate (301) enables larger measurement ranges and improved measurement accuracies. Furthermore, a compact construction is achieved by the planar structure.

Abstract: The present embodiments relate to a magnetic resonance local coil with a receive antenna for receiving magnetic resonance signals. The magnetic resonance local coil also includes a transmission unit for transmitting magnetic resonance signal data generated on the basis of the magnetic resonance signals via a data transmit antenna of the magnetic resonance local coil to a signal data receiving unit of a magnetic resonance tomography systems. The transmission unit is provided, at least in sections, with screening with a first metal coating and a first dielectric coating.

Abstract: The present embodiments relate to a local coil system for a magnetic resonance system. The local coil system includes at least one local coil for detecting MR response signals and at least one transmitting device for the wireless transmission of signals to a receiver of the magnetic resonance system. The local coil system is embodied with a transmitter-side diversity. A receiver-side diversity may exist in the magnetic resonance system.

Abstract: A local coil system for a magnetic resonance system has a local coil for detecting MR response signals and a transmitter for wirelessly transmitting signals to the magnetic resonance system. At least one pseudo random device is operable to change signals in a pseudo random fashion in order to avoid interferences in the imaging.

Abstract: The invention relates to a circuit carrier (11), comprising a digital circuit, which contains at least two components (12, 14) that are electrically connected to each other (19, 21, 20). Additionally, an electric shield (24) is provided. According to the invention, the electric shield (24) and a conducting path (21) for electrically connecting the components (12, 14) are realized by means of a single layered composite (18). In particular, the electric shield (24) and the conducting path (21) are formed by the same electrically conductive layer, wherein a hole (25) ensures complete electrical insulation of the conducting path (21) from the shield (24). The invention further relates to a method for producing such a circuit carrier.

Abstract: 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.

Abstract: A local antenna device for transmitting magnetic resonance (MR) signals of a plurality of MR receiving antenna elements to an MR signal processing device is provided. The local antenna device includes a plurality of analog-to-digital converters for scanning the MR signals and converting the MR signals to digital MR data, and a plurality of transmitting antenna elements for wirelessly transmitting the digital MR data to the MR signal processing device by the emission of an electromagnetic field. The local antenna device includes a plurality of transmitting devices for triggering the transmitting antenna elements and a plurality of spacer elements that is arranged and embodied on the local antenna device such that at least a defined minimum emission spacing is produced between the plurality of transmitting antenna elements and articles adjoining the local antenna device in at least one direction of a principal axis of emission of the electromagnetic field.

Abstract: The present embodiments relate to a local coil system for a magnetic resonance system. The local coil system includes at least one local coil for detecting MR response signals and at least one transmitting device for the wireless transmission of signals to a receiver of the magnetic resonance system. The local coil system is embodied with a transmitter-side diversity. A receiver-side diversity may exist in the magnetic resonance system.