Nuclear magnetic resonance coil array and decoupling method thereof, and nuclear magnetic resonance detection device

A nuclear magnetic resonance detection device, comprising:

• a nuclear magnetic resonance coil array, wherein the nuclear magnetic resonance coil array comprises a coil resonant unit and a decoupling network unit;
• the coil resonant unit comprises multiple coil resonant circuits, and the decoupling network unit comprises multiple decoupling circuits, wherein each coil resonant circuit comprises a coil and a resonant capacitor;
• the resonant capacitor in each coil resonant circuit is connected in parallel with the coil, coils in each coil resonant circuit are equally spaced on a circumference, and a decoupling circuit is provided between a positive terminal and a negative terminal of adjacent coils, respectively;
• and
• each coil is connected to an antenna switching circuit of the nuclear magnetic resonance detection device at the same time and is configured to transmit nuclear magnetic resonance signals sequentially under control of the antenna switching circuit, wherein each resonant capacitor is configured to tune a transmission frequency of a corresponding nuclear magnetic resonance signal, and the decoupling circuit is configured to eliminate mutual inductance coupling between adjacent coils.