波長干涉儀 的英文怎麼說

中文拼音 [zhǎnggānshè]
波長干涉儀 英文
wavelength interferometer
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
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  • : 名詞1 (人的外表) appearance; bearing 2 (禮節; 儀式) ceremony; rite 3 (禮物)present; gift 4 ...
  • 波長 : [物理學] wavelength波長標準 [光學] wavelength standards; 波長測量 wavelength measurement; 波長常...
  1. The short - baseline interferometer ’ s angle measurement accuracy is influenced by phase difference measuring accuracy, the base length measuring accuracy, the system operating wavelength ( frequency ) and so on, the article analyzes the existing theory, and emphatically analyzes the influence of base length measuring accuracy to the precision of angle measurement

    短基線測角精度受相位差測量精度、基線度測量精度、系統工作(頻率)測量精度等因素的影響,文中,在對原有理論進行分析的基礎上著重分析了基線度測量精度對系統角度測量精度的影響。
  2. The main works and contributions achieved in this dissertation are concluded as follows : 1. based on the scalar diffraction theory, the mathematical model of optical configuration of transmissive grating interferometer is established. it indicats that moir interference fringes is affected by many parameters, such as grating pitch, light wavelength, light beam size and incidence angle, etc. the variation that the width, intensity, orientation and contrast of moir interference fringes along with every parameter is numerically analyzed

    主要的研究內容和所取得的成果可歸納如下: 1 .基於標量衍射理論,建立了透射式光柵光路的數學模型,分析了透射式光柵的莫爾條紋與光柵柵距、光柵開口比、光、光斑尺寸、光束入射角等多個參數的關系。
  3. Secondly, we propose and demonstrate experimentally a novel multi - wavelength erbium - doped fiber ring laser by using a mach - zehnder fiber interferometer and composite cavity. as a result, simultaneous multi - wavelength oscillations with narrow linewidth and equal wavelength span are obtained in room temperature. this device has advantageous of simple design fabrication and low cost et al

    進一步,我們設計了一種新穎的多摻鉺光纖環形激光器,這種激光器是利用mach - zenhder ( m - z )光纖型作為梳狀濾器,並且與復合腔共同選頻,獲得了窄線寬、等間隔的多同時輸出,這種激光器具有在常溫工作,結構簡單,成本低等優點。
  4. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面機理的基礎上,求出了線光源激勵的超聲振動的位移表達式,發現線光源激勵的近場區表面具有形好,信噪比高,指向性好,幅度強等特點。通過理論推導,得出共焦fabry - perot的輸出光強除了與樣品表面的振動速度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔,增大鏡面反射率,或者減小檢測入射角都可以提高系統的信噪比。
  5. The theoretical analysis shows that mz - ifog can be used to detect the rotation rate of moving objects. a systematic analysis of transfer characteristics of mz - ifog is made. performance - limiting factors, including the path - length difference, the disturbance of temperature fluctuation and stress from working environment, the quality of light source, are all discussed along with methods to reduce their effect on the output signal

    本文用系統的方法分析了mz型式光纖陀螺的光傳輸特徵,指出了其較大的非互易性因素-臂差的存在,分析了工作環境因素(溫度,應力) 、光源質量(輸出光束中心、光功率動及偏振態動)對系統工作性能的影響,並指出了減少系統非互易因素、抑制噪聲、提高檢測穩定性的措施。
  6. 2. based on interoferometric technique, a parasitic interference configuration was introduced to transpose the wavelength - shift signal into phase - shift signal ; the strains were demodulated by measuring the phase change of the signal with a phase - meter

    利用技術,採用寄生結構對傳感光柵的反射譜進行解碼,用相位計觀測漂移引起兩臂間相位差的變化,進而監測作用在傳感光柵上的待測應變量。
  7. 4. a 8 - cascaded wavelength - division - multiplexed fiber bragg grating sensor system was interrogated by changing voltage acting on a employed tunable fabry - perot filter, and a feedback loop was introduced to make filter track the shifted wavelength of the sensor. at the same time an unbalanced scanning michelson interferometer was introduced to demodulate sensor signal

    同時為克服查詢某一光柵時,應變引起漂移導致反射偏離f - p透過,利用一反饋控制裝置,使得濾器的透過自動追蹤查詢光柵的布一拉格,利用非平衡掃描michelson對傳感信號進行了高解析度的解調。
  8. The demodulation method of fiber grating is the key method of fiber grating sensor. the main demodulation method includes : grating matching method, tunable fabry - perot cavity method, non - balance mach - zehnder interferometer method and tunable narrow - band light source method. the tunable fabry - perot cavity method is discussed in detail, and a demodulation system based on dsp is put forward

    光纖光柵的解調技術是光纖光柵傳感器的關鍵技術,本文討論了光纖光柵的解調方法,包括匹配光柵法、可調諧f - p腔法、非平衡mach - zehnder法和可調諧光源法等,詳細分析了可調諧f - p濾器的特性和解調原理提出了一種基於dsp的解調光纖光柵的可調諧法布里一珀羅腔解調方案。
  9. This research is aim at putting forwarding laser wavelength scanning interference testing method. processing and analyzing instantly - read interference pattern corresponding with continuous varying wavelength, the method overcomes the following disadvantage. for example, the longer referenced and measuring optical circuit in big - scale high - accuracy asphere testing, and the sensitive interferential system to the disturb, such as the oscillation of worklable, dithering of air, and so on

    研究的目的主要是針對大型高精度非球面面形檢測中的參考光路和測量光路較系統對工作臺振動和空氣抖動等外界擾因素的影響敏感,圖不穩定等問題,提出了激光掃描測試方法,該方法通過對瞬間讀取的、與連續變化對應的圖的處理和分析,克服了上述缺點,為大型高精度非球面的檢測提供了一種適用的方法。
  10. The paper studies mainly a new kind of measure method of aspheric surface - laser wavelength - scanning interference testing. this research is aimed at putting forwarding laser wavelength scanning interference testing method. processing and analyzing instantly - read interference pattern corresponding with continuous varying wavelength, the method overcomes the following disadvantage : the longer referenced and measuring optical circuit in big - scale high - accuracy asphere testing and the sensitive interferential system to the disturb, such as the oscillation of worktable, dithering of air, and so on

    研究的主要目的是針對在大型高精度非球面面形檢測中的參考光路和測量光路較系統對工作臺振動和空氣抖動等外界擾因素的影響敏感,圖不穩定等問題,提出了激光掃描測試方法,該方法通過對瞬間讀取的、與連續變化對應的圖的處理和分析,克服了上述缺點,為大型高精度非球面的檢測提供了一種適用的方法。
  11. This thesis describes a all fiber optic accelerometer based on t - g double beam interferometer, the whole system include a coherent source whose wavelength is 1310nm, a flexural optic fiber disk act as sensing unit, photodetector, piezoelectric ceramic act as a phase modulator and signal processing circuit. the all fiber optic accelerometer described in the paper has many desirable engineering features which include : broad frequency response ; high sensitivity to measurands ; antielectromagnetic interference and small size

    本課題研究的是一種基於泰曼-格林( t - g )雙光束原理的光纖加速度計,系統主要包括:中心為1 . 31 m的ld相光源、起傳感作用的光纖柔性盤、光探測器( pin ) 、相位調制用的壓電陶瓷以及信號處理系統。
  12. Usually the measuring values of these systems are based on the wavelengths of the incorporated laser sources. hence, in order to ensure that the high potential accuracy of these instruments is achieved, the values of their wavelengths in vacuum must be known

    通常所量得的數值是根據裝置在的激光光源的所得出的,為確保器能達到其潛在的高精確度,必須知道激光在真空中的數值。
  13. Experiments have demonstrated that, under the condition of constant temperature ( 20 ), the frequency error of double - frequency laser interferometer with two longitudinal modes could be controlled within 10 " 9 even with conditions such as with cool or hot air blowing, it can still be kept within 10 " 7. self - organised fuzzy control methods can be realised in a single - chip processor which contains fuzzy optimisation and self - organisation functions. the above - mentioned system possesses the following advantages : simple

    / znl (式中c為光速, l為諧振腔, n為空氣折射率,其值約790mhz ) ,原理上對目前可能要求的測量速度都能滿足;它發出的光為一對互相垂直的線偏振光,與塞曼型雙頻激光相比,它不用外加軸向磁場及1 / 4片,因此結構簡單,造價低廉。
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