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1.发明公开
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
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.-
公开(公告)号：EP4382944A1
公开(公告)日：2024-06-12
申请号：EP22852663.8
申请日：2022-06-07
摘要： A light receiving device 13 receives fluorescence emitted by a magnetic resonance member 1 correspondingly to excitation light and generates a fluorescence sensor signal corresponding to an intensity of the fluorescence. A CMR calculation unit 25 performs for the fluorescence sensor signal common mode rejection based on a reference sensor signal generated by receiving a reference light obtained as a branch of the excitation light and thereby generates a CMR signal. An analog-digital converter 26 digitizes the CMR signal and an analog-digital converter 27 digitizes a reference light sensor signal. The processor 31 divides the digitized CMR signal by the digitized reference light sensor signal and thereby generates a detection signal, and derives a measurement value of the measurement target field on the basis of the detection signal; and performs a noise-removal digital filter process for the digitized CMR signal or the detection signal.
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公开(公告)号：EP4382943A1
公开(公告)日：2024-06-12
申请号：EP22852662.0
申请日：2022-06-07
IPC分类号： G01R33/24
摘要： A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with incident light of a specific wavelength. An FT 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. A pillar-shaped light guide member 41 guides the incident light to the magnetic resonance member 1, and a pillar-shaped light guide member 42 guides fluorescence that the magnetic resonance member 1 emits from the magnetic resonance member 1. Further, the magnetic resonance member 1 is arranged between an end surface of the light guide member 41 and an end surface of the light guide member 42 in a hollow part of the secondary coil 4b of the FT 4 and in a hollow part of the aforementioned magnet 3.
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公开(公告)号：EP4163656A1
公开(公告)日：2023-04-12
申请号：EP21818486.9
申请日：2021-04-19
摘要： A substrate 1 includes a color center excited by excitation light, and at least a pair of reflection members 21a, 21b are arranged with gaps from the substrate 1. The substrate 1 causes the excitation light entering the substrate 1 to exit through its surfaces without reflection, and the reflection members 21a, 21b cause the exited excitation light to reflect at the reflection surface 21-1 or 21-2 and enter the substrate 1, and cause the excitation light to repeatedly enter and exit the substrate 1 and thereby pass through the substrate 1 only a predetermined number of times. Here, the irradiating device 4 emits the excitation light such that the excitation light is incident to the reflection surface 21-1 or 21-2 with an angle perpendicular to one axis among two axes of the reflection surface 21-1 or 21-2 and with a predetermined slant angle from the other axis.
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