【摘要】：由高品質(zhì)的熔融石英玻璃材料加工而成的半球諧振陀螺是利用半球殼唇沿的徑向振動(dòng)駐波進(jìn)動(dòng)效應(yīng)來感測(cè)基座旋轉(zhuǎn)的一種全新的慣導(dǎo)級(jí)固態(tài)陀螺,因具有高精度、高可靠性和長(zhǎng)壽命等獨(dú)特的優(yōu)點(diǎn)而受到國(guó)內(nèi)外慣性技術(shù)界的高度重視。隨著載人航天等空間技術(shù)的不斷成熟和空間應(yīng)用需求的擴(kuò)大,對(duì)半球諧振陀螺的精度、穩(wěn)定性的要求也隨之提高,但精度、穩(wěn)定性和批量化生產(chǎn)是影響半球諧振陀螺衛(wèi)星應(yīng)用的重要因素,已經(jīng)制約了半球諧振陀螺在衛(wèi)星導(dǎo)航系統(tǒng)中的應(yīng)用。本文介紹了半球諧振陀螺的特點(diǎn),國(guó)內(nèi)外發(fā)展情況,發(fā)展趨勢(shì)以及應(yīng)用狀況,還簡(jiǎn)要介紹了半球諧振陀螺的基本原理、結(jié)構(gòu)特征和工作方式。針對(duì)半球諧振陀螺在研究工作中存在的問題,分析了陀螺的誤差機(jī)理與誤差源產(chǎn)生主要在器件材料的內(nèi)部損耗誤差、機(jī)械加工誤差、工藝誤差、諧振子壁厚不均勻、三件套裝配間隙與電機(jī)位置誤差、面積偏差以及固有誤差等幾方面。針對(duì)加工工藝與裝配產(chǎn)生的誤差,不斷優(yōu)化諧振子化學(xué)處理、質(zhì)量調(diào)平、電機(jī)刻蝕等相關(guān)工藝技術(shù);通過改進(jìn)測(cè)試夾具和測(cè)試設(shè)備、完善測(cè)試方法等手段,研究新方法、新工藝等技術(shù)創(chuàng)新,減小其誤差對(duì)陀螺造成的不良影響。針對(duì)產(chǎn)生的固有誤差包括信號(hào)檢測(cè)誤差和隨機(jī)漂移誤差等誤差源,通過電平衡測(cè)試技術(shù)、電路補(bǔ)償技術(shù)和軟件處理技術(shù)減小或者消除陀螺的誤差,提高陀螺的可靠性和精度。
[Abstract]:The hemispherical resonant gyroscope made of high quality fused quartz glass material is a new kind of solid-state gyroscope of inertia level, which uses the standing wave precession effect of radial vibration along the shell lip of the hemisphere to detect the rotation of the base, because of its high precision. The unique advantages of high reliability and long life have been attached great importance to by inertial technology at home and abroad. With the development of space technology such as manned spaceflight and the expansion of space application demand, the precision and stability of hemispherical resonant gyroscope are also improved, but the precision is improved. Stability and mass production are important factors that affect the application of hemispherical resonant gyroscope (HRG), which has restricted the application of HRG in satellite navigation system. In this paper, the characteristics of hemispherical resonant gyroscope, its development at home and abroad, its development trend and its application are introduced. The basic principle, structural characteristics and working mode of hemispherical resonant gyroscope are also briefly introduced. Aiming at the problems existing in the research of hemispherical resonant gyroscope, the error mechanism and error source of the gyroscope are analyzed, which are mainly caused by the internal loss error, machining error, process error and non-uniform wall thickness of the harmonic oscillator. Three parts assembly clearance and motor position error, area deviation and inherent error and so on. Aiming at the error caused by machining technology and assembly, the related technology such as chemical treatment of harmonic oscillator, quality leveling, motor etching and so on are continuously optimized. By means of improving the test fixture and equipment and perfecting the test method, the new method and the new technology innovation are studied to reduce the bad effect of the error on the gyro. In view of the inherent errors, such as signal detection error and random drift error, the error of gyro can be reduced or eliminated by electric balance test, circuit compensation and software processing, and the reliability and precision of gyro can be improved.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN96

【共引文獻(xiàn)】

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本文編號(hào)：2458192