Coil as an important part of magnetic resonance imaging system,its performance directly effects the imaging quality.In order to ensure the signal-to-noise and image quality as much as possible,it must tune before detect.When tuning,it make the coil resonance frequency is consistent whit the larmor frequency,coil and the circuit impedance matching by tuning the coli frequency and impedance.In this paper,we design a coil tuning detection module,elaborated the principle of module and design of software and har...