LOCAL COIL SYSTEM, TRANSMITTING DEVICE, MAGNETIC RESONANCE SYSTEM AND METHOD FOR THE WIRELESS TRANSFER OF ENERGY TO A LOCAL COIL SYSTEM

摘要

PURPOSE: A wireless transmission method of energy to local coil system, receiving/sending device, magnetism resonant system and local coil system are provided to transmit additional information such as organization of received channel and wireless frequency by changing energy supply frequency. CONSTITUTION: A magnetism resonant system for capturing MR signals comprises local coil system. An energy receiving antenna comprises an energy receiving antenna(130) to inductively receive energy from a magnetic field which changes on time interval. The energy receiving antenna is tuned in energy carrier frequency(520) which is lower than Larmor frequencies(530,534) of MR signal that will be caught and higher than approximately 20 kHz. The energy carrier frequency does not have any harmonic frequency within the range of the Larmor frequency. The energy carrier frequency is selected higher than approximately, 1 MHz.