Multi-channel parallel nuclear magnetic data acquisition system and method

The invention belongs to the technical field of nuclear magnetic data acquisition, and particularly relates to a multichannel parallel nuclear magnetic data acquisition system and method, and the system comprises a nuclear magnetic LC receiving antenna which is used for receiving a nuclear magnetic signal; the pre-amplifier is used for carrying out first-stage amplification on the received nuclear magnetic signals; the program-controlled band-pass filter is used for filtering the nuclear magnetic signal after the first-stage amplification and selecting the bandwidth of the program-controlled band-pass filter through programming; the n amplifiers are connected in parallel, and the amplifiers are set to be different multiples; the n A/D converters respectively correspond to the n amplifiers connected in parallel and convert the amplified nuclear magnetic signals into digital signals; and the microprocessor is used for receiving the nuclear magnetic signals with different magnification times and selecting the ma