国防科技大学学报
國防科技大學學報
국방과기대학학보
JOURNAL OF NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
2014年
3期
46-50
,共5页
阳明晔%宋章启%张学亮%陈宇中
暘明曄%宋章啟%張學亮%陳宇中
양명엽%송장계%장학량%진우중
光纤陀螺%标度因数%输入轴失准角%温度特性
光纖陀螺%標度因數%輸入軸失準角%溫度特性
광섬타라%표도인수%수입축실준각%온도특성
fiber optic gyro%scale factor%input axis misalignment angle%temperature characteristic
光纤陀螺的输入轴失准角温度变化特性是光纤陀螺惯性系统正交校准所面临的主要难题。提出了一种有效地消除输入轴失准角测量误差的测试方法;对三只椭圆环结构的光纤陀螺进行了输入轴失准角温度特性研究。结果表明,三只椭圆环光纤陀螺的输入轴失准角分布比较集中;此外,椭圆环光纤陀螺的输入轴失准角随着温度变化呈非单调的曲线变化,高温过程的变化速度相对较快。该结论对光纤陀螺环制作工艺的改进提供了测试依据,并有助于惯性系统正交校准的温度补偿技术研究。
光纖陀螺的輸入軸失準角溫度變化特性是光纖陀螺慣性繫統正交校準所麵臨的主要難題。提齣瞭一種有效地消除輸入軸失準角測量誤差的測試方法;對三隻橢圓環結構的光纖陀螺進行瞭輸入軸失準角溫度特性研究。結果錶明,三隻橢圓環光纖陀螺的輸入軸失準角分佈比較集中;此外,橢圓環光纖陀螺的輸入軸失準角隨著溫度變化呈非單調的麯線變化,高溫過程的變化速度相對較快。該結論對光纖陀螺環製作工藝的改進提供瞭測試依據,併有助于慣性繫統正交校準的溫度補償技術研究。
광섬타라적수입축실준각온도변화특성시광섬타라관성계통정교교준소면림적주요난제。제출료일충유효지소제수입축실준각측량오차적측시방법;대삼지타원배결구적광섬타라진행료수입축실준각온도특성연구。결과표명,삼지타원배광섬타라적수입축실준각분포비교집중;차외,타원배광섬타라적수입축실준각수착온도변화정비단조적곡선변화,고온과정적변화속도상대교쾌。해결론대광섬타라배제작공예적개진제공료측시의거,병유조우관성계통정교교준적온도보상기술연구。
The temperature variation characteristic of the input axis misalignment angle of fiber optic gyro has become one of the key problems of orthogonal calibration of the fiber optic gyro inertia system.Firstly,a kind of measurement method,which can eliminate the measurement errors effectively,was presented.Then,the input axis misalignment angles of three fiber optic gyros with elliptical-structure optical fiber rings were measured.It is found that the three samples have similar input axis misalignment angles;the input axis misalignment angles vary non-monotonously with the changing of temperature;and the varying velocity is fast relatively in high temperature region.The results may be useful for improving the manufacturing technology of the fiber ring of the fiber optic gyro and will be helpful to prompt the temperature compensation technology of the orthogonal calibration in fiber optic gyro inertia system.