optical attenuation 中文意思是什麼

optical attenuation 解釋
光衰減
  • optical : adj 眼的；視覺的；視力的；幫助視力的；光學（上）的。 optical activity 【物理學】旋光性。 an optic...
  • attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
  1. The last part of the thsis presents a novel fast response digital variable optical attenuator. this device is driven by two electromagnetic driving units rather not stepper motors. a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses

    論文最後針對現有數字可調光衰減器均由步進電機驅動，體積龐大，造價高昂且速度緩慢的缺點，利用微反射單元設計了一種高速數字式可調光衰減器。
  2. Commercial building telecommunications cabling standard - part 1 : general requirements - addendum 3 - supportable distances and channel attenuation for optical fiber applications by fiber type

    商用建築電信電纜敷設標準.第1部分:一般要求.補充件3 .根據纖維類型決定的光纖設備的可支持距離和通道衰減
  3. Optical power meter real - time monitor optical power of each optical cable, and control computer gather the value of optical power attenuation circularly, if some values excess the limit, the computer control optical switch to connect another spare optical fiber with otdr card, control the otdr card to test the optical fiber, and then find the malfunction point accurately. the system require software system to run with hardware devices tother. this paper analyze requirement and technical feasibility in software system, ooa and uml are used to analyze software and abstract the class diagram

    通過光功率計對每條光纜中的備用光纖進行實時的監控，測試光功率的衰減值，主控計算機不斷循環的對每個光功率模塊進行數據採集，並記錄每路光信號的光功率衰減值，然後進行分析處理，如發現達到設定的光功率衰減門限值就報警，並控制光開關的切換，將故障光纜中的另一備用光纖與otdr卡連接，通過otdr卡對該光纖進行測試，從而確定故障點。
  4. The optical rotation in er fluids is studied thoericaly. considering the different attenuation in different direction and the theory of light transmission, i derive the expression of rotation angle as function of the angle 6 ( between the electric vector of linearly polarized light and electric field ) and other parameters on the condition of several appropriates and assumptions

    考慮電場作用下電流變液中不同振動方向的線偏振光衰減不同，根據光波在介質中的傳播理論，推導出光通過電流變液的旋光角與（入射線偏振光振動方向與外加電場方向的夾角）及其它參數的關系表達式。
  5. Finally, a design example of optical system used for smog attenuation testing system is given to illustrate the effect of spherical aberration on the image beam waist

    最後通過激光羽煙衰減測試系統中聚光光學系統的設計實例說明了球差對高斯光束像方束腰的影響。
  6. Light launch conditions for long length graded - index optical fiber spectral attenuation measurements

    長距離分級指數光纖光譜衰減度測量的光發射條件
  7. Electro - optical curves for lc cells have been analyzed and it has been shown mat a large attenuation range and a shallow attenuation slope can be achieved simultaneously for a variable optical attenuator based on a parallel - aligned lc cell with an appropriate surface anchoring strength. as compared with the existing liquid crystal - based voa structure ( using two cascaded lc cells with a particular material ), the present structure is simple and has no special requirement for the lc materials

    提出了基於弱錨定平行排列液晶盒的可變光衰減器（衰減范圍大、衰減曲線下降平緩以保證調節精度） ，與己有液晶型可變光衰減器結構（選用特定液晶材料、兩個液晶盒級聯結構）相比較，本論文提出的基於弱錨定平行排列液晶盒的可變光衰減器結構簡單，同時對于液晶材料無特殊要求。
  8. Spectral attenuation measurement of step index multimode optical fibers

    步進指數多模光纖的光譜衰減測量
  9. The fva - uv is an opto - mechanical device that controls the amount of light transmitted between two optical fibers. internal disc varies attenuation from 0 - 100 %

    Uv是一個光學機械裝置，可控制在兩根光纖之間傳輸的光的數量，內部光片可在0 - 100 %改變衰減率。
  10. Attenuation by substitution measurement for short - length multimode graded - index and single mode optical fiber cable assemblies

    交替測量法進行短長度的多模漸變折射率光纖電纜和單模光纖電纜組件衰減量的測量
  11. The optical activity resulting from the anisotropic attenuation of different linearly polarized light is considered, and the attenuation of linearly polarized light lies in the light reflection on the interface and the absorption in the er fluids

    考慮了電場作用下各向異性電流變液對入射線偏振光矢量不同振動方向的衰減不同而引起的旋光效應（電致旋光效應） 。
  12. Optical attenuation, widely applied in many fields, can be adopted to acquire single - photon sequence that is foundational in quantum key distribution. we obtain single - photon sequence by precisely controlled optical power distribution along outlets of manifold consist of beam splitter instead of the attenuation by time sequence due to loss

    用線性分束耦合器形成多個輸出口，將光強的時序衰減變為光強沿輸出口的空間分佈，研製出了量子保密通信用的精密控制的強衰減器，實現了對光子數的精密控制。
  13. Aerospace series - fibres and cables, optical, aircraft use - test methods - attenuation

    航空航天系列.飛行器用光纖和光纜.試驗方法.衰減性
  14. Aerospace series - fibres and cables, optical, aircraft use - test methods - part 301 : attenuation

    航空航天系列.飛機光纖和光纜.試驗方法.第301部分:衰減性
  15. Optical fiber macrobend attenuation

    光纖宏彎衰減試驗
  16. Attenuation by substitution measurement for short - length multimode graded - index and single - mode optical fiber assemblies

    短長度多模分級指數光纖和單膜光纖組件用代換測量法的衰減試驗
  17. Testing of fibre optic elements ; determination of attenuation of optical fibres

    光纖元件的檢驗.第1部分:光纖的衰減測定
  18. The optical attenuation of complementary electrochromic devices ( ecds ) with two reversible electrodes operating in tandem is presented

    摘要本研究探討兩個可逆電極同步工作之互補式電致色變元件的光學調幅。
  19. The measured optical attenuation for the ecd is in good agreement with the model prediction using the parameters obtained from the individual thin film measurements

    所量測的電致色變元件光學調幅與利用測量個別薄膜得到的參數所構成的模型預測值相當一致。
  20. Furthermore, it has been verified, both theoretically and experimentally, that the charge capacities of the two ec layers have to be matched in order to achieve the maximum optical attenuation

    此外，經由理論的分析以及實驗的結果證實，為了要達到互補式電致色變元件最大的光學調幅，兩電致色變層之電荷密度必須要互相搭配。
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