laser filter 中文意思是什麼
laser filter
解釋
激光濾片-
Preparation and research of free - standing zr filter for soft x - ray laser
濾光膜的制備及測量 -
For phonetic signal modulation, if the pass band range of the band pass filter ( bpf ) is 300hz - 3400hz, the anti - noise properties of laser are approximately independent of bias current and parameters of the cavity ; when the pass band range of bpf increases to a certain degree, modulating bias current and parameters of the cavity can improve the anti - noise properties of laser
對語音調制情況，如帶通濾波器的通帶范圍取為300hz - 3400hz ，則激光器的抗噪聲性能基本不依賴于偏置電流和腔內參數；當帶通濾波器的通帶范圍增大到一定程度，調整偏置電流和腔內參數可以實現半導體激光器的高抗噪聲性能。 -
The works we have done as below : the design of whole structure of the non - confocal lif detection system ; the design of the device to couple excitated light into the smf, transport 532nm and 635nm laser direct to the detection area ; designing the device to divide, filter and detect the fluorescence signal
本論文研究這種微流控生化分析系統的激光誘導熒光檢測部分。作為該系統的第一階段研究工作，本課題進行了以下工作： 1非共焦型lif檢測系統的總體結構設計。 -
The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed
將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。 -
Application of median filter in wavelet domain in the signal processing of the laser gyro
小波域中值濾波在激光陀螺信號處理中的應用 -
On the basis of practically achieved low - frequency laser - vibration measuring - system, this thesis analyses the principle of laser - vibration measuring - system, the optical factors which have effect on contrast degree of interference fringe, the optical - electric transformation factors which have effect on measuring accuracy, the important of filter for improving the accuracy in the absolute calibration and the outward vibration which has effect on system accuracy, etc. in chapter one, the background of laser measuring vibration, and then followed by its current status, is introduced and analyzed
本論文根據實際研製的激光測振儀系統，從提高激光測振儀精度的角度出發介紹了激光測振儀的原理，並詳細地剖析了光路對測振儀干涉條紋對比度的影響、光電轉換對測量精度的影響、光電信號的濾波放大以及外界振動對測振儀系統的影響等技術問題。 -
Damage effects of q - switched nd : yag laser beam on ir filter
脈沖激光對紅外濾光片的損傷效應 -
Study and design of spatial filter in high power femtosecond laser system
高能飛秒激光系統中空間濾波器的研究和設計 -
This system can be used for ar, bs, high reflectance mirror, edge filter, bandpass filter, window for laser, telescope film etc
已經在多家用戶成功應用於寬帶增透膜、分光膜、激光器窗口、望遠鏡紅膜等膜系監控。 -
As the key component of multiplexer / demultiplexer, optical filter technology has been fueling great interest with the emergence of wide range tunable laser source, all - wave fiber, and wide band optical amplifiers, which is promoting dwdm to a leading edge of optical fiber communication
隨著寬可調諧激光光源、全波光纖和超寬帶光放大器的出現，密集波分復用日益成為光纖通信的主流技術，作為復用/解復用器核心的光濾波技術備受關注。 -
In two multi - mode lasers, the receiver laser output is synchronized to its input that is very different from the case in single - mode laser system. thus the receiver laser can not serve as a message filter
在這種情況下，接收器激光的強度輸出是和強度輸入同步的，這就和在單模激光系統中混沌通訊的情況不同，此時接收器激光就不能再充當信號過濾器了。 -
Process analysis of laser reflective mirror and induce transmittance filter
激光反射鏡與誘導透射濾光片工藝分析 -
Active interference filter laser amplifier
有源干涉濾光激光放大器 -
It can generate high - stable and linear current signal and utilize butterworth low pass filter to eliminate the noise and ripple in the signal. according to the different functions of different pins, this circuit can modulate and control the output power of the laser diode and modulate the laser signal, which makes this laser diode driver have more valuable application. in the last part of the paper, the feasibility of the theory is validated by experiment data
其次，根據ic - wkn的內部電路和不同引腳的功能，設計了一套由d / a轉換器和單片機組成的信號調節電路，使之能夠輸出具有良好的穩定性和線性特性的電流調節信號，並選擇巴特沃茲低通濾波器來濾除信號中的紋波和干擾。 -
The double - frequency laser interferometer belongs to the heterodyne interferometer. it has been proved that this kind of interferometer possesses the advantage of having a higher transform gain, better wave - filter capacity and high spatial resolution. furthermore, this kind of interferometer can filter out background light interference and obtain a measuring signal with high signal / noise ratio
雙頻激光干涉儀是一種外差干涉儀，理論分析證明：外差干涉具有高的轉換增益、良好的濾波性能及優異的空間鑒別能力，能有效地濾除各種背景光干擾，得到信噪比很高的測量信號。 -
Cigarettes and filter rods. determination of nominal diameter. method using ? laser beam measuring apparatus
卷煙和過濾咀.標稱直徑的測定.使用激光束測量儀法 -
5 high isolation filter, easy for the division of frequency ; 6 return laser adopt dfb laser, multi ports have the same return panel
6回傳激光發射採用有致冷量子阱dfb激光器，多口共用一個回傳功能板，即插即用。 -
Adopting an anti - gaussian liquid absorption filter lens, the uniformi t y of radial intensity of laser source is realized
應用反高斯分佈的液體吸收濾光鏡，實現了高斯光束強度的徑向均勻化。 -
Abstract : group technology is introduced in the developing proc ess of high - power laser system for the first time. as an example, on the basis of the spatial filter, it is demonstrated the needs and feasibility of group design in the developing process of high - power laser system, and the composing of comp uter aided group design ( gt - cad ) system is discussed and how to put it into pra ctice in the high - power laser system
文摘:在高功率激光裝置研製中首次引入成組技術概念，並以空間濾波器為例論證了在高功率激光裝置的器件研製過程中實施成組設計的必要性和可行性.最後討論了計算機輔助成組設計系統（ gt - cad ）的組成和在高功率激光裝置中具體實施過程 -
Abstract : the threshold algorithm of the target detection is often used to detect target echo signals. its performance is based on signals - noise ratio. when signals - noise ratio is great than 6. 7, the target can be detected. in order to increase the signals - noise ratio, matching filter is often used. if the system is narrow band system, the noise is color noise and matching filter cannot be used. therefore, the signals - noise ratio cannot be increased. however, the geometrical characteristic of the laser echo signal is different with the noise. this paper advises the algorithm that detects the target by the geometrical characteristic. when signals - noise ratio is great than 2, this algorithm can detect target. this algorithm has been used in practice
文摘:目標檢測的閾值法經常用於檢測目標的回波信號.它的性能取決于信噪比，當信噪比大於6 . 7時，能夠檢測出目標.為了提高信噪比，經常採用匹配濾波器.如果系統是窄帶系統，噪聲為色噪聲，無法使用匹配濾波器，不能提高信噪比.激光回波信號的幾何特徵不同於噪聲.提出了一種利用這種幾何特徵檢測目標的演算法.當信噪比大於2時，該演算法能夠檢測出目標.該演算法已經實際應用
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