Status acquisition of a RF coil on or in a magnetic resonance device

1. A system comprising:

a RF coil configured for use on or in a magnetic resonance device; and

a status acquisition unit arranged on the RF coil, wherein the status acquisition unit is configured to acquire a status of the RF coil and to generate a status-dependent output signal, wherein the status acquisition unit is configured to be at least partially deactivated.

2. The system of claim 1 , wherein the status acquisition unit comprises at least one magnetic field sensor configured to acquire at least one magnetic field characteristic.

3. The system of claim 2 , wherein the status-dependent output signal is dependent on a threshold value, on a change in a magnetic field characteristic acquired by the at least one magnetic field sensor, or the threshold value and the change in a magnetic field characteristic acquired by the at least one magnetic field sensor.

4. The system of claim 2 , wherein the at least one magnetic field sensor comprises at least one reed contact, at least one Hall sensor, at least one induction coil, or a combination thereof.

5. The system of claim 1 , wherein the status acquisition unit further comprises an output unit configured to output the status-dependent output signal.

6. The system of claim 1 , wherein the status-dependent output signal is an optical signal, an acoustic signal, or an optical signal and an acoustic signal.

7. The system of claim 2 , wherein the status-dependent output signal is based on the at least one magnetic field characteristic.

8. The system of claim 1 , wherein the status acquisition unit further comprises a connection status acquisition unit configured to acquire a connection status of the RF coil.

9. The system of claim 1 , wherein the status acquisition unit further comprises an energy storage device.

10. The system of claim 1 , wherein the status acquisition unit is configured to perform a discontinuous acquisition.

11. The system of claim 1 , wherein the status acquisition unit is configured so that the status-dependent output signal is suspended for a time following an acquisition of a change in status of the RF coil.

12. The system of claim 1 , wherein the status acquisition unit further comprises an output unit configured to generate the status-dependent output signal and to communicate the status-dependent output signal to an external receiver unit of the magnetic resonance device.

13. The system of claim 1 , wherein the status acquisition unit further comprises a temperature status sensor.

14. A method for status acquisition of a RF coil on or in a magnetic resonance device, the method comprising:

acquiring at least one signal which characterizes a status of the RF coil;

generating a status-dependent output signal; wherein the status-dependent output signal is based on the at least one signal; and

suspending the status-dependent output signal for a time following an acquisition of a change in status of the RF coil.

15. The method of claim 14 , wherein the at least one signal is based on a magnetic field characteristic.

16. The method of claim 14 , wherein the at least one signal is based on a connection status of the RF coil.

17. The method of claim 14 , wherein the status-dependent output signal is only generated when the RF coil is not connected and the signal dependent on a magnetic field characteristic exceeds at least one threshold value.

18. The method of claim 14 wherein acquiring and generating are repeated.

19. A magnetic resonance device comprising:

a local RF coil; and

a status acquisition unit arranged on the local RF coil, wherein the status acquisition unit is configured to acquire a status of the local RF coil and to generate a status-dependent output signal, wherein the status acquisition unit is configured to perform a discontinuous acquisition.

20. The magnetic resonance device of claim 19 , further comprising:

a receive unit, wherein the receive unit is configured to receive the status-dependent output signal.