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Polaron Sagnac phase-based angular rate high-accuracy detection method

A detection method, a technique for polarons, applied to devices using optical methods, etc.

Active Publication Date: 2017-08-15
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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AI Technical Summary

Problems solved by technology

[0007] The technology of the present invention aims at the problem of accurately detecting the angular rate of the aircraft, and proposes a high-precision angular rate detection method based on the polariton Sagnac phase

Method used

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  • Polaron Sagnac phase-based angular rate high-accuracy detection method
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  • Polaron Sagnac phase-based angular rate high-accuracy detection method

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Embodiment Construction

[0125] specific implementation plan

[0126] Please refer to figure 1 , figure 2 and image 3 , combined with the following specific implementation steps:

[0127] (1) When the system rotates, calculate the relative light intensity change.

[0128] When the system rotates, the light intensity I 1 and I 2 Satisfy

[0129]

[0130]

[0131] Define δ as the relative light intensity change obtained by spatial subtraction:

[0132]

[0133] The relationship between the relative light intensity difference and the polariton Sagnac phase is obtained:

[0134]

[0135] The relationship between the relative light intensity difference and the system speed is obtained:

[0136]

[0137] Therefore, δ can be used as the rotational speed of the gyro signal sensitive system, and the relative light intensity difference can be used to obtain the rotational speed of the system. I 0 is the total light intensity, I 1 is the total light intensity in an odd space, I 2is t...

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Abstract

The present invention relates to a Polaron Sagnac phase-based angular rate high-accuracy detection method. Under the influence of superimposed-state vortex light, a large number of photons radiated by polarons inherit the phase information of the superimposed-state vortex light and form an interference pattern on a detection device; the interference pattern is divided into an odd-number and an even-number space; the total light intensity of the even-number space and the odd-number space is obtained through using an optical wave function; the relational expression of relative light intensity difference obtained through space subtraction and Polaron Sagnac phases is built, and the relationship of the relative light intensity difference and system rotation speed is obtained through using the Sagnac phase formula of the polarons, and the influence of various kinds of noises is considered, and time for a signal-to-noise ratio to reach 1 is obtained, and when the signal-to-noise ratio reaches 1, the Sagnac phase of the polarons can be detected, and system angular rate information can be obtained.

Description

technical field [0001] The invention relates to a high-precision detection method of angular velocity based on polaron Sagnac phase, which is suitable for the design and research of the new technology of Bose-Einstein condensed matter quantum gyroscope at room temperature. [0002] technical background [0003] Since the French physicist Leon Foucault discovered and named the gyroscope in 1850, the gyroscope, as the main inertial navigation detection equipment, has been widely used in navigation, aviation, aerospace, missiles, automobiles and other fields. Traditional electromechanical gyroscopes, laser gyroscopes based on the Sagnac effect, and fiber optic gyroscopes have contradictions between the improvement of accuracy and sensitivity and the miniaturization of volume, weight, and power consumption, and have entered the bottleneck of the development of accuracy and sensitivity. In recent years, the rapid development of quantum physics and low-temperature physics has broug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P3/36
CPCG01P3/36
Inventor 任元张建伟谢璐李俊超林源王盛军王卫杰刘通
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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