装备环境工程
裝備環境工程
장비배경공정
EQUIPMENT ENVIRONMENTAL ENGINEERING
2014年
1期
97-100
,共4页
凌明祥%王珏%宁菲%卢永刚%李明海%黎启胜
凌明祥%王玨%寧菲%盧永剛%李明海%黎啟勝
릉명상%왕각%저비%로영강%리명해%려계성
精密离心机%加速度计%科里奥利力%天体作用力
精密離心機%加速度計%科裏奧利力%天體作用力
정밀리심궤%가속도계%과리오리력%천체작용력
precision centrifuge%accelerometer%Coriolis force%Celestial force
目的:研究地球自转产生的科里奥利力及天体作用力对高精度精密离心机的影响规律。方法考虑精密离心机实际存在的各种失准角,采用齐次变换方法推导由地球自转在加速度计输入轴上产生的科里奥利加速度数学表达式;建立天体作用力对精密离心机上加速度计影响的数学关系式。结果科氏加速度对精密离心机的影响量级为10-5 m/s2;月球和太阳作用力的最大影响量级之和为10-6 m/s2。结论对于10-6量级精度的精密离心机,必须补偿科氏加速度的影响;月球和太阳作用力的影响可以忽略不计。
目的:研究地毬自轉產生的科裏奧利力及天體作用力對高精度精密離心機的影響規律。方法攷慮精密離心機實際存在的各種失準角,採用齊次變換方法推導由地毬自轉在加速度計輸入軸上產生的科裏奧利加速度數學錶達式;建立天體作用力對精密離心機上加速度計影響的數學關繫式。結果科氏加速度對精密離心機的影響量級為10-5 m/s2;月毬和太暘作用力的最大影響量級之和為10-6 m/s2。結論對于10-6量級精度的精密離心機,必鬚補償科氏加速度的影響;月毬和太暘作用力的影響可以忽略不計。
목적:연구지구자전산생적과리오리력급천체작용력대고정도정밀리심궤적영향규률。방법고필정밀리심궤실제존재적각충실준각,채용제차변환방법추도유지구자전재가속도계수입축상산생적과리오리가속도수학표체식;건립천체작용력대정밀리심궤상가속도계영향적수학관계식。결과과씨가속도대정밀리심궤적영향량급위10-5 m/s2;월구화태양작용력적최대영향량급지화위10-6 m/s2。결론대우10-6량급정도적정밀리심궤,필수보상과씨가속도적영향;월구화태양작용력적영향가이홀략불계。
Objective To satisfy acceleration’s precision of 10-6 precision centrifuge. Methods Considering misalignment angles between accelerometer and centrifuge,between centrifuge and earth,Coriolis acceleration generated by earth’s rotation acting on the input axis of accelerometer was deduced employing homogeneous coordinate transform matrix. The mathematical expression of acceleration generated by the Moon and the Sun on precision centrifuge was also built. The order of magnitude and impact of Coriolis acceleration,the Moon and the Sun’s force were calculated and analyzed. Results Coriolis acceleration’s order of magnitude was 10-5 m/s2. The order of magnitude of the Moon and the Sun ’s force was 10-6 m/s2. Conclusion As to our developed precision centrifuge,the influence of Coriolis acceleration must be considered and compensated while the influence of Moon and Sun’s force can be neglected.