Digitizing device and digitizing method
A physical field generator generates a magnetic field or an electric field corresponding to an input signal. An optical quantum sensor part generates light corresponding to the magnetic field or the electric field by a sensing member and converts the light into an electrical signal as a sensor signal by a photoelectric element. An analog/digital converter digitizes the sensor signal. Further, the optical quantum sensor part performs a quantum operation with respect to the sensing member mentioned above and causes the sensing member mentioned above to generate the light mentioned above corresponding to the magnetic field or the electric field mentioned above.
1 . A digitizing device comprising:
a physical field generator that generates a magnetic field or an electric field corresponding to an input signal;
an optical quantum sensor part that generates light corresponding to the magnetic field or the electric field by a sensing member and converts the light into an electrical signal as a sensor signal by a photoelectric element; and
an analog/digital converter that digitizes the sensor signal to generate a digital signal as an output signal corresponding to the input signal,
wherein 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 or the electric field, and
a predetermined arithmetic processing with respect to the output signal is performed so that a value of the output signal is coincident with a level of the input signal.
2 . The digitizing device according to claim 1 ,
wherein the optical quantum sensor part causes the sensing member to generate the light as a level of the sensor signal exceeds a noise floor of the analog/digital converter.
3 . The digitizing device according to claim 1 ,
wherein an amplifier circuit in which the sensor signal is amplified is not provided between the photoelectric element and the analog/digital converter.
4 . The digitizing device according to claim 1 ,
wherein the optical quantum sensor part performs the quantum operation with respect to the sensing member according to an optically detected magnetic resonance measuring method or an optically pumped atomic magnetic force measurement method, and causes the sensing member to generate the light corresponding to the magnetic field or the electric field.
5 . A digitizing method comprising:
a step of generating a magnetic field or an electric field corresponding to an input signal;
an optical quantum sensing step of generating light corresponding to the magnetic field or the electric field by a sensing member and converting the light into an electrical signal as a sensor signal by a photoelectric element; and
a step of digitizing the sensor signal via an analog/digital converter to generate a digital signal as an output signal corresponding to the input signal, wherein, in the optical quantum sensing step, the sensing member is caused to generate the light corresponding to the magnetic field or the electric field by performing a quantum operation with respect to the sensing member, and
a predetermined arithmetic processing with respect to the output signal is performed so that a value of the output signal is coincident with a level of the input signal.