Method and system for automatically adjusting beam and slab pore channel grouting quality inspection signal

The invention relates to a method and system for automatically adjusting a beam and slab duct grouting quality inspection signal, and the method comprises the steps: a floating point regulator controls an adjustable exciter to generate a seismic wave, a seismic detector receives the seismic wave, converts the seismic wave into a voltage signal, and transmits the voltage signal to a floating point amplification circuit for signal conditioning, thereby obtaining a first output signal; the first output signal is compared with a signal preset threshold value in the floating point control circuit, and whether the first output signal is within the signal preset threshold value or not is judged; and if yes, converting the first output signal into a digital signal through the seismic wave collector and storing the digital signal, and if not, performing signal adjustment on the first output signal by adjusting the impact force of the adjustable exciter and/or adjusting the amplification factor of the floating point am