Patent ID: 9529061
Filing Date: 2016-12-27
CPC Classification: G01R

Claim Text:
1. A magnetic sensor for measuring a magnetic field using an optical pumping method, comprising: a first gas of atoms or ions; a probe light source which causes a first circular polarized light to be incident on the first gas; a second gas of atoms or ions located on a light path of the first circular polarized light; an AC magnetic field generator which: (1) generates an AC magnetic field in a direction intersecting with an optical axis of the first circular polarized light and a second circular polarized light for the first gas and the second gas, and (2) generates magnetic resonance; a bias magnetic field generator which generates bias magnetic fields in a direction parallel to the optical axis of the first circular polarized light and the second circular polarized light with different intensities; and a detector which detects a light amount of light before and after transmitting the first gas and the second gas.