公开(公告)号：US11099245B2

公开(公告)日：2021-08-24

申请号：US16547772

申请日：2019-08-22

Applicant: HAMAMATSU PHOTONICS K.K. ,  Kyoto University

Inventor： Tetsuo Kobayashi ,  Norihisa Kato ,  Motohiro Suyama

IPC: G01R33/26 ,  G01R33/032 ,  G01N24/00 ,  H01S3/091

Abstract: A cell for a optically pumped magnetic sensor measures magnetic field by setting alkali metal atoms to a predetermined excitation state by a pump beam and detecting the excitation state by a probe beam. The cell is provided with a glass substrate which seals the alkali metal atoms and an enclosing gas and transmits the pump beam and the probe beam and a coating layer provided on an inner surface of the glass substrate. The coating layer is made of an inorganic material.

公开(公告)号：US11029375B2

公开(公告)日：2021-06-08

申请号：US16589370

申请日：2019-10-01

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Norihisa Kato ,  Motohiro Suyama

IPC: G01R33/26 ,  G01R33/032

Abstract: A cell module used for a photoexcitation magnetic sensor includes a cell in which an alkali metal is enclosed, a heater which is disposed close to the cell to heat the alkali metal, and a case which forms a decompression region accommodating the cell and the heater.