Connected inertia measuring device of open-loop fibre-optical

Abstract

A device for measuring strap down inertia of gyroscope in small volume and open ring optical fiber type consists of three open ring optical fiber gyroscopes, accelerometer, signal collection module, data processing module, data transmission interface and mechanical framework .It is featured as forming mechanical framework by T form structure and base plate, setting X-axis gyroscope on base plate and setting Y-axis gyroscope and Z-axis gyroscope on T form structure, setting accelerometer on said framework and setting signal collection and data processing modules on T form structure .

Description

technical field [0001] The invention relates to a strapdown inertial measurement device based on an open-loop fiber optic gyroscope and a silicon micro-accelerometer, which is used to measure the acceleration and rotational angular rate of a carrier, especially a small-volume open-loop fiber optic gyroscope strapdown inertial measurement device, which is suitable for It is a strapdown inertial navigation system with small size and low cost. Background technique [0002] Navigation systems have penetrated into our lives, and inertial navigation, as the core of navigation systems, has always been concerned by various countries, and countries have invested a lot of manpower and material resources in research. The inertial measurement device is the core of the inertial navigation system, and its accuracy, volume and cost directly affect the various indicators of the navigation system. With the development of gyro technology, the strapdown inertial navigation system has develope...

AI Technical Summary

Problems solved by technology

[0003] The short action time of tactical weapons requires low cost and miniaturization, which puts forward high requirements for the inertial measurement system. Most of the traditional inertial measurement devices use mechanical inertial devices, and the platform type inertial measurement device is large in size and weight. Expensive; the relatively mature mechanical gyro strapdown inertial measurement device now has a small dynamic range and poor shock resistance due to the high-speed rotor of the mechanical gyro inertial device, and the traditional mechanical gyro is too large to meet the miniaturization requirements; at present, the domestically developed The laser gyro strapdown inertial measurement device and the closed-loop fiber optic gyro inertial measurement device also have the problems of large size and heavy weight, which cannot meet the needs of miniaturization

Due to the use of these traditional and mature inertial measurement devices, the existing tactical weapon navigation system has the characteristics of large volume, heavy weight, and high cost. Measuring devices cannot meet the requirements of miniaturization development of new tactical weapons

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