grating filter 中文意思是什麼
grating filter
解釋
光柵濾光片-
3. passive and active time - domain demodulation schemes were demonstrated based on a fiber bragg grating used as a tunable filter controlled by a piezoelectric stack, which was driven by an electrical sine wave signal. the measured strain applied on the sensor axially could be judged by observing the interval of the output between notches within a driving period in time - domain
利用匹配濾波技術，分別採用無源和有源方式，藉助受pzt驅動的解調光柵，將待測應變信息變為時序負脈沖間隔的變化，利用常規的示波器觀測同一掃描周期中兩負脈沖在時域中間隔的變化來確定待測應變的變化。 -
Movable infrared tunable micro filter, 8x8 moems optical switch array and micro electromagnetic actuator used as driver of moems movable device are separately explored in chapter three. firstly, the infrared tunable micro filter is designed according to theory analysis of micro tunable grating
論文用三章的篇幅分別對微型可調諧紅外濾光器、 8 8moems陣列光開關等可動器件及作為moems可動器件驅動源的微型電磁驅動器進行了探索。 -
In order to filter out the noise contained in effective optical signal, a new method using the blazed grating to enlarge the angle difference between noise and effective signal, and getting through the iris to get the effective signal was put forward
摘要為了濾除有效光信號中的光噪聲，本文提出了一種利用光柵的閃耀特性將噪聲和有效信號之間的夾角角度差放大，再通過光闌得到有效光信號的方法。 -
The tunable performance is obtained by rotating the grating. the disadvantages of the mechanical tunable filter are high control voltage, slow response time and big volume. the electro - optic tunable filters are obtained by the alteration of the birefringence of the electro - optic material applied voltage
電子光學濾光片則是通過施加電壓使各種電子光學材料的雙折射率發生變化來實現透射波長的調諧，也可以利用電光晶體在電場中的旋轉來實現波長的調諧。 -
The mechanical tunable grating filter is realized by a grating and a rotary section. the angle between the incident light and grating is the decisive factor of the transmit wavelength
如：機械調諧的可調光柵濾光片，光柵安裝在一個旋轉部件上，光柵與入射光的夾角決定了所需要選擇的波長。 -
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，應變引起波長漂移導致反射波長偏離f - p透過波長，利用一反饋控制裝置，使得濾波器的透過波長自動追蹤查詢光柵的布一拉格波長，利用非平衡掃描michelson干涉儀對傳感信號進行了高解析度的解調。 -
The interrogation of fiber grating sensor with tunable fbg filter system controlled by computer is well introduced. by using this interrogating method, we finished experiment of fiber grating sensor wdm and sdm
詳細闡述了使用自行設計的計算機控制的可調諧濾波系統，進行傳感解調工作，並完成了光纖光柵傳感的空分復用和波分復用解調實驗。 -
A novel fiber bragg grating sensors multiplexing system which combined with hibi flm and f - p filter is put forwarded. the experiment and the theory analysis demonstrated that the system only scan and demodulate sensing channels, whose wavelength is shifting. what ’ s more, the smart fbg sensors multiplexing system can rule the demodulate sequence by the priority, the waiting time and the wavelength shifting of every sensing channels
3 .提出基於ingaas陣列和f - p濾波器的智能化復用系統，該系統只對感測到被測量變化的傳感器進行掃描解調，並可根據每一個傳感器的優先權、信息等待時間和信號變化大小等靈活設定掃描解調順序，平均解調速度也得到提高。 -
In the first place, start with theoretic model of distributed fbg strain - sensing network, sensing principle of fiber bragg grating is analyzed and sensing model created. on the basis of analyzing advantages and disadvantages of several familiar multiplexing and demodulation techniques, a mixture multiplexing method that combines optical frequency domain reflectometry ( ofdr ) and wavelength division multiplexing ( wdm ) is proposed to address fbg sensing array. at the same time, tunable narrow - band light source, which is composed of wide - band light source and tunable optical filter, is adopted to demodulate multiplex signals
首先，論文從分散式光纖光柵應變傳感網路的理論模型入手，分析了光纖布拉格光柵的傳感機理，建立光纖光柵應變傳感模型；在分析比較了常見幾種復用技術和信號解調技術的優缺點基礎上，提出應用光頻域反射復用技術和波分復用技術相結合的混合復用方法來解決光纖光柵應變傳感網路的尋址問題，採用由寬帶光源和可調諧光濾波器組成的可調諧窄帶光源來解調復用信號，通過理論分析和實驗研究證實了系統方案的可行性。 -
Among the tunable filter technologies of optical fiber grating sensors, the peak method is an usual way, but it has poor precision and the result is unstable
摘要在光纖光柵傳感懸臂梁調諧濾波技術中，峰值法進行波長檢測誤差大，精度低，測量結果不穩定。
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