Inductively powered electric component of an mri apparatus

A nuclear magnetic resonance imaging apparatus comprising:

• a main magnet adapted for generating a main magnetic field;
• at least one radio frequency receiver coil unit for acquiring magnetic resonance signals in a receiver coil radio frequency band from an examined object;
• means for inductively supplying electric power to an electric component of the apparatus, wherein the electric component is adapted to be powered by inductively supplied electric power, wherein the main magnet comprises a magnet bore, wherein the electric component is spatially located within the magnet bore, wherein the means for inductively supplying the electric power are adapted for supplying the electric power by a rotating magnetic field, wherein the rotation axis of the rotating magnetic field is parallel with the cylindrical axis of the main magnet.

An electric component of a nuclear magnetic resonance imaging apparatus, the apparatus comprising a nuclear magnetic resonance imaging receiving coil unit for acquiring magnetic resonance signals in a receiver coil radio frequency band from an examined object, the electric component comprising means for inductively receiving electric power, wherein the power transfer frequency and the higher harmonics of the power transfer frequency are located outside the receiver coil radio frequency band.

A method of performing nuclear magnetic resonance imaging of an object, the method being performed by a nuclear magnetic resonance imaging apparatus, the method comprising:

• exciting nuclear magnetization within the object;
• inductively supplying electric power to an electric component of the apparatus, wherein the electric component is powered by inductively supplied electric power, the apparatus comprising a radio frequency receiver coil unit, the radio frequency receiver coil unit being adapted for acquiring magnetic resonance signals in a receiver coil radio frequency band from the object upon excitation of the object, wherein the power transfer frequency and the higher harmonics of the power transfer frequency for inductively supplying the electric power are located outside the receiver coil radio frequency band;
• receiving the acquired magnetic resonance signals from the receiver coil unit.

A method of acquiring magnetic resonance imaging signals in a receiver coil radio frequency band from an examined object, the method comprising:

• inductively receiving electric power, wherein the power transfer frequency and the higher harmonics of the power transfer frequency are located outside the receiver coil radio frequency band;
• acquiring the magnetic resonance signals from the examined object;
• transmitting the acquired magnetic resonance signals to a nuclear magnetic resonance imaging apparatus.