A Gyro Resonator Structure Based on Atomic Gas Dispersion
A resonant cavity, color technology, applied in Sagnac effect gyroscopes, gyroscopes/steering sensing devices, instruments, etc., can solve the problem of low sensitivity of resonant optical gyroscopes
Active Publication Date: 2021-03-30
BEIHANG UNIV
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Problems solved by technology
[0004] 1. Purpose: The purpose of the present invention is to provide a gyro resonant cavity structure with atomic gas dispersion for the problem of low sensitivity of the resonant optical gyroscope
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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] Such as figure 1 As shown, the present invention is a gyroscope resonator structure with atomic gas dispersion, which is an improvement to the ring resonator of the existing resonant gyroscope. The dispersion unit is added to the three-mirror cavity to become an improved gyroscope resonator ; The present invention is made up of light source, three-mirror cavity and dispersion unit 4; The relationship between them is that the dispersion unit is placed in the three-mirror cavity, and the light from the light source is incident into the three-mirror cavity and the dispersion unit respectively.
[0022] The light source is composed of two lasers and an acousto-optic frequency shifter 3; a laser 1 that provides a signal light source is split by a beam splitter 5, and a beam of light enters the acousto-optic frequency shifter 3 and is shifted by a light guide mirror 6...
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The invention relates to a gyroscope resonance cavity structure for chromatic dispersion of atom gas. The gyroscope resonance cavity structure consists of a light source, a three-lens cavity and a chromatic dispersion unit, wherein the chromatic dispersion unit is arranged in the three-lens cavity; the light of the light source is respectively transmitted into the three-lens cavity and the chromatic dispersion unit; the light source consists of two laser devices and an acoustic-optical frequency shifter; one laser device is used for providing a signal light source, and the other laser device is used for providing a pumping light source; the three-lens cavity consists of two lenses with high reflectivity, a partially-reflective lens and PZT (piezoe-lectric transducer) piezoelectric ceramic;the two lenses with high reflectivity and the partially-reflective lens form a three-lens resonance cavity, and the PZT piezoelectric ceramic is connected with one lens with high reflectivity to adjust the length of the three-lens cavity; the chromatic dispersion unit consists of the atom gas, a magnetic shield, a glass bulb, and a temperature control module, the atom gas is packaged into the glass bulb, the magnetic shield is covered to the outer surface of the glass bulb, and the temperature control module is used for heating the atom gas in the glass bulb. The gyroscope resonance cavity structure can solve the problem of low sensitivity of the resonance type optical gyroscopescope.
Description
technical field [0001] The invention relates to a high-sensitivity resonant optical gyroscope resonant cavity structure, specifically a gyroscope resonant cavity structure with atomic gas dispersion, and belongs to the technical field of resonant optical gyroscopes. Background technique [0002] As a sensor for accurately determining the orientation and angular velocity of a moving object, the gyroscope is a key device to realize the attitude control and inertial navigation of the controlled object, and it is also an inertial navigation instrument widely used in modern aviation, aerospace, navigation and defense industries. The development of high-end technologies such as industry and national defense of a country has very important strategic significance. According to the different principles of measuring angular velocity, gyroscopes can be divided into mechanical gyroscopes, optical gyroscopes and atomic gyroscopes. According to the sensitivity and accuracy of the gyro, i...
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IPC IPC(8): G01C19/72
CPCG01C19/721
Inventor 肖志松张浩李文秀
Owner BEIHANG UNIV