Abstract:
A transmission arrangement for a tomograph, such as magnetic resonance tomography, is provided for wireless energy supply of a local coil system. The transmission arrangement includes at least one first region having at least one first antenna element. The transmission arrangement further includes at least one second region having at least one second antenna element. The at least one first region and the at least one second region are connected to one another via at least one rejector circuit.
Abstract:
A transmission arrangement for a tomograph, such as magnetic resonance tomography, is provided for wireless energy supply of a local coil system. The transmission arrangement includes at least one first region having at least one first antenna element. The transmission arrangement further includes at least one second region having at least one second antenna element. The at least one first region and the at least one second region are connected to one another via at least one rejector circuit.
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:
A sensor system has a least one voltage generator for conversion of non-electrical energy to electrical energy. At least one energy store is connected downstream from the voltage generator. At least one voltage converter is connected to the energy store such that its output signal is suitable for operation of a processor controller. At least one sensor is provided, and at least one transmitter enables wire-free transmission of transmission messages produced by the processor controller and containing at least one measured value from the at least one sensor. A timer circuit is triggered as a function of a voltage level of the at least one energy store, and activates the sensor system to transmit at least one transmission message after a specific time interval.
Abstract:
A voltage generator (1) for conversion of non-electrical primary energy (PE) to a voltage signal (USIG, USIG′) by means of induction. The voltage generator (1) has at least one mechanical energy store (2) for holding the primary energy (PE), and which has at least one changeover point (P). At least one induction system (3) is provided which can be coupled to the mechanical energy store (2), with the mechanical energy store (2) carrying out a movement on reaching the at least one changeover point (P) by means of which movement a voltage signal (USIG, USIG′) can be induced in the induction system (3).
Abstract:
A method for wireless transfer of energy to a local coil system for a magnetic resonance system is provided. The method includes determining an energy requirement value representing a minimum energy level to be fed to the local coil system, so that the local coil system may carry out a predetermined function over a predetermined time period. Energy is transferred adaptively to the local coil system depending on the energy requirement value.
Abstract:
A method for wireless transfer of energy to a local coil system for a magnetic resonance system is provided. The method includes determining an energy requirement value representing a minimum energy level to be fed to the local coil system, so that the local coil system may carry out a predetermined function over a predetermined time period. Energy is transferred adaptively to the local coil system depending on the energy requirement value.
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:
The transmitter which can be fed thermally has at least one heat transducer element (1) with a downstream voltage transformer (3) and logic assembly (4) as well as a data transmission unit (5, 6), and is characterized in that the logic assembly (4) is designed on a ULP basis, and the data transmission unit (5, 6) transmits a broadband signal.