A Method of Angular Velocity Detection Using Bidirectional Full Reciprocal Coupling Photoelectric Oscillator

Abstract

The invention discloses an angular velocity detection method using a bidirectional fully reciprocal coupling photoelectric oscillator, which is realized on an optically loaded microwave gyroscope. Optical-borne microwave gyroscope is a bidirectional resonant optical-borne microwave angular velocity measurement device sharing the same optical fiber loop. The core of this method is to use the bidirectional light-borne microwave resonator to experience the Sagnac effect, in which the light-borne microwave resonator uses a coupled photoelectric oscillator to realize the bidirectional fully reciprocal fiber optical path, effectively eliminating the non-reciprocity of the resonator error. The angular velocity detection method has the characteristics of high precision, easy implementation and low cost.

Description

technical field [0001] The invention belongs to the technical field of high-precision gyroscopes, and relates to an angular velocity detection technology, in particular to an angular velocity detection method using a bidirectional full reciprocal coupling photoelectric oscillator. Background technique [0002] Inertial technology is one of the core technologies of national defense weapons and equipment systems, and it plays a very important role in improving the rapid maneuverability of troops, implementing precise strikes, and improving self-survivability. In the field of inertial navigation, gyroscopes are usually used to measure the inertial angular velocity. The high-precision gyroscope directly affects the navigation accuracy of the inertial navigation system. Therefore, the accuracy index of the gyroscope is an important manifestation of the national military technology level. [0003] At present, the practical high-precision gyroscopes mainly include electrostatic gy...

AI Technical Summary

Problems solved by technology

Electrostatic gyroscope is the gyroscope with the highest precision so far, but its volume is large, the dimensional accuracy of core components is very high, the processing is difficult, and the cost is also high

The three-float gyroscope is a mechanical gyroscope, and its drift stability is second only to the electrostatic gyroscope, but it also requires high processing accuracy, strict assembly, and precise temperature control, so the cost is also high

However, due to the limitations of the system's reciprocity error and drift error, the accuracy of laser gyroscopes and fiber optic gyroscopes is difficult to improve. They belong to the field of low- and medium-precision gyroscopes and cannot meet the needs of high-precision inertial navigation.

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