Patent ID: 9606204
Date: 2017-03-28
CPC Classifications: G01R

Claim:
1. A magnetic resonance multi-core array radio frequency device, comprising a radio frequency receiver, wherein the radio frequency receiver comprises: a plurality of radio frequency coils configured to capture a magnetic resonance signal; a low noise amplifier electrically connected to the radio frequency coils, and configured to pre-amplify the magnetic resonance signal captured by the radio frequency coils; a multiplexer electrically connected to the low noise amplifier, and configured to provide a corresponding radio frequency coil channel and a corresponding filter channel, and transmit the magnetic resonance signal pre-amplified by the low noise amplifier; a radio frequency band-pass filter electrically connected to the multiplexer, and configured to filter the magnetic resonance signal; a programmable gain amplifier electrically connected to the radio frequency band-pass filter, and configured to amplify the magnetic resonance signal; a frequency synthesizer configured to generate a local oscillator signal; a mixer electrically connected to the programmable gain amplifier and the frequency synthesizer, and configured to mix the magnetic resonance signal and the local oscillator signal; an A/D converter electrically connected to the mixer, and configured to convert the magnetic resonance signal mixed by the mixer into a magnetic resonance digital signal; and a controller electrically connected to the multiplexer, the radio frequency band-pass filter, the frequency synthesizer, and the A/D converter, respectively, the controller is configured to control the multiplexer to select the corresponding radio frequency coil channel and the corresponding filter channel, to control a gain of the radio frequency band-pass filter, to control the frequency synthesizer to generate the local oscillator signal and receive the magnetic resonance digital signal transmitted by the A/D converter.