optical path difference 中文意思是什麼

optical path difference 解釋
光稱差
  • 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...
  • path : path（ol ）＝pathological; pathology n （pl paths ）1 （自然踏成的）路；路徑；（馬路邊上的）人行...
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  1. With the compensator in place any optical path difference arises from the actual path difference.

    有了補償板之後，任何光程差都只由實際程差引起。
  2. 3. the principle of the interleaver based on the interference of polarized light is analyzed theoreticallyand the interleaver architecture of this kind is presented. a 50ghz interleaver is designed and the two series of interleaved spectrum like cosine function is obtained experimentally ; by using the tandem of two birefringent crystals with different optical path difference, we get the flattop spectrum

    3 、分析了pbi型interleaver濾波器的基本原理，給出了一種pbi型interleaver濾波器結構；設計了50ghz光學梳狀濾波器，實驗得到了該器件兩組交錯分波類餘弦輸出光譜；採用不同光程差的晶體級聯方案，實現了輸出光譜平頂化。
  3. A distant field interference of non - single - core light beams is analysed in a transparent liquid or solid when the bubble is irradiated with laser, a formula on optical path length difference is derived, interference regions and causes of interference rings thick inside and thin outside are analysed, the diameter of bubble can be measured by method of interference, the size of bubble and refraction index of gas inside the bubble can be measured in the depths of medium

    摘要對透明液體、固體中氣泡在激光照射下產生的一種非單心光束干涉進行了遠場分析，得到了程差公式，分析了干涉的區域、圓環狀干涉條紋內密外疏的原因，通過干涉的方法可以測量氣泡的直徑，能夠用於介質深處氣泡尺寸及泡內氣體折射率的測量。
  4. The stability of micro - birefringence optical path difference measuring system based on electro - optic modulation method is studied

    提出用旋轉半波片反射法測量半封閉玻璃製品應力，探討以電光調製法為基礎的微雙折射光程差測量系統的穩定性。
  5. To compensate for low - frequency drift of the optical path - length difference and to keep the operation point on the most sensitive point, the reference mirror is adjusted with a actuator driven by a feedback loop

    為了補償光程差的低頻漂移，將工作點穩定在靈敏度最高點，使用一個反饋控制系統驅動微位移器調整參考平面鏡。
  6. It is widely used to measure optical element, optical system, detection of optical surface and the physical quantities ( such as field of temperature, field of density ) related with optical path difference. the underlying measurement principle of psi is to determine the phase of the intensity signal in interferogram received at each pixel of an imaging device

    移相干涉術（ psi ）作為快速、非接觸的精密測量手段，已經廣泛地應用於光學零件、光學系統、精密表面檢測和其它一些與光程差參數相關的物理量的測量（如溫度場、密度場等） 。
  7. Then the optical path difference can be obtained with psi algorithm and to use the phase value for each pixel to determine a height value for each pixel. a primary advantage of psi is its high precision. with careful control of environmental conditions, measurement precision to the nanometer scale or below is possible with psi

    它的基本測量原理是，通過攝像系統（ ccd ）接受到的干涉圖中空間坐標已知的各個像素點的光強信號，在壓電晶體驅動參考光程有序變化時，採集到多幅干涉圖的光強信號，由移相干涉法，由光強值得到被測光程差值（位相值） 。
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