The invention relates to a four-channel
nuclear magnetic resonance signal full-wave acquisition
system and acquisition method. The
system is constructed in such a way that a computer is connected with a first controller; the first controller is connected with a
power management module through a high-speed digital I / O card and a second controller; the first controller is respectively connected with
broadband amplifiers through an acquisition card; and the computer is connected with a GPS module through the second controller. A
preamplifier effectively resists
amplifier saturation, by use of Q_SWITCH, the dead zone time is shortened, the
signal-to-
noise ratio is improved, the synchronization precision is improved, false triggering is prevented,
noise signals are remotely transmitted by use of currents, the
signal attenuation during a transmission process is effectively inhibited,
data processing is performed on acquired
nuclear magnetic resonance signals by use of a self-adaptive reference de-noising
algorithm, the anti-interference capability of an instrument is enhanced, the dynamic scope of the instrument is improved, it is possible that a
nuclear magnetic resonance method can be applied to a large-
noise area, and the transverse resolution and accuracy of measuring underground
water body distribution are effectively improved. Multi-channel measuring improves the working efficiency, and the positioning of an underground
water body is accurate.