Single-beam biaxial closed-loop atomic spin gyroscope

• Main Authors: LIU YUANXING, TAN SHUO, WANG XUEFENG, HAN TAOYU, DENG YICHENG, WANG TIANSHUN
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention relates to a single-beam double-axis closed-loop atomic spin gyroscope. Comprising a pump light source, a light source control unit, a collimating lens, a polarizer, a 1/4 wave plate, a three-axis magnetic field coil, a multilayer magnetic shielding cylinder, an atomic gas chamber, a non-magnetic constant temperature control unit, a non-magnetic photoelectric detector, a photoelectric acquisition unit, an X-axis magnetic compensation unit, a Y-axis magnetic compensation unit, a Z-axis magnetic compensation unit and an arc tangent calculation unit. The pump light source is controlled by the light source control unit, light emitted by the pump light source passes through the first collimating lens, the polarizer and the 1/4 wave plate and then is converted into circularly polarized light, the circularly polarized light passes through the atomic gas chamber, the atomic gas chamber is heated by the non-magnetic constant-temperature heating unit, alkali metal atoms are gasified, inert gas atoms are p