DIGITIZING DEVICE AND DIGITIZING METHOD

To accurately digitize minute analog signals below a noise floor of an A/D converter.SOLUTION: A physical field generation device 1 generates a magnetic field or an electric field corresponding to an input signal. An optical quantum sensor unit 2 generates light corresponding to the magnetic field o...

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Bibliographic Details
Main Authors MIZUOCHI NORIKAZU, YOSHII YOSHIHARU, KANEKO TAKAKI, OKI IZURU
Format Patent
LanguageEnglish
Japanese
Published 31.05.2023
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:To accurately digitize minute analog signals below a noise floor of an A/D converter.SOLUTION: A physical field generation device 1 generates a magnetic field or an electric field corresponding to an input signal. An optical quantum sensor unit 2 generates light corresponding to the magnetic field or electric field with a sensing member, and converts the light into an electric signal as a sensor signal with a photoelectric element. An A/D converter 3 digitizes the sensor signal. Then, the optical quantum sensor unit 2 performs quantum manipulation on the sensing member to cause the sensing member to generate the light corresponding to the magnetic field or electric field.SELECTED DRAWING: Figure 1 【課題】 Ａ／Ｄ変換器のノイズフロアと同様のレベル以下の微小なアナログ信号を精度良くデジタイズする。【解決手段】 物理場発生装置１は、入力信号に対応する磁場または電場を発生する。光学的量子センサ部２は、その磁場または電場に対応する光をセンシング部材で発生し、その光を光電素子で、センサ信号としての電気信号に変換する。Ａ／Ｄ変換器３は、そのセンサ信号をデジタイズする。そして、光学的量子センサ部２は、上述のセンシング部材に対して量子操作を行って、上述の磁場または電場に対応する上述の光を上述のセンシング部材に発生させる。【選択図】 図１
Bibliography:Application Number: JP20210188929