公开(公告)号：EP4435423A1

公开(公告)日：2024-09-25

申请号：EP22895171.1

申请日：2022-08-12

申请人： SUMIDA CORPORATION ,  Kyoto University

发明人： OHKI Izuru ,  MIZUOCHI Norikazu ,  YOSHII Yoshiharu ,  KANEKO Tsunaki ,  SAKO Akifumi

IPC分类号： G01N24/00

CPC分类号： G01N24/00

摘要： [Problems] A low-level NMR signal is accurately detected and nuclear magnetic resonance sensing having high resolution is performed.
[Solution] A nuclear magnetic resonance sensing part 1 applies a high frequency magnetic field based on an RF signal to a target object and generates an observation signal with a frequency that is shifted from a frequency of the RF signal by a frequency of an NMR signal. A mixer part 6 generates an IF demodulation signal including the NMR signal. A low-pass filter 7 passes a low frequency component of the IF demodulation signal. In a digitizing device 2, a physical field generator generates a magnetic field and so on corresponding to the IF demodulation signal that has passed through the low-pass filter 7, an optical quantum sensor part generates light corresponding to the magnetic field and so on by a sensing member and converts the light into a sensor signal by a photoelectric element, and an analog/digital converter digitizes the sensor signal. The optical quantum sensor part performs a quantum operation with respect to the sensing member and causes the sensing member to generate the light corresponding to the magnetic field and so on.