Patent ID: 7126336

Claim:
A nuclear magnetic resonance apparatus comprising: an amplifier amplifying an analog NMR signal received by a detection probe; an analog-to-digital converter converting said analog NMR signal amplified by said amplifier to a digital NMR signal; a quadrature detector; a first storage device installed between the analog-to-digital converter and said quadrature detector configured for preserving said digital NMR signal; a second storage device configured for preserving NMR measuring conditions including a magnetic field intensity data, a sample temperature data, and a sample rotation data under NMR measurement; a detection controller reading said NMR measuring conditions from said second storage device and controlling a detection operation; and a reference signal generator outputting a reference wave for detection according to an instruction of said detection controller; wherein said quadrature detector reads said digital NMR signal preserved in said first storage device and performs quadrature detection using a reference signal outputted from said reference signal generator according to said instruction of said detection controller.