激光傳聲器 的英文怎麼說
中文拼音 [jīguāngzhuànshēngqì]
激光傳聲器
英文
laser microphone- 激 : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 傳 : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
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For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器,提出站模型,能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性,利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論;對于電流i噪聲、自發發射壽命_ ( sp )噪聲、自發發射因子噪聲、光子壽命_ p噪聲,以及電流調制、 _ ( sp )調制、調制、 _ p調制,在小信號近似下,得到了相應的激光器的傳遞函數;在大信噪比的前提下,對激光器進行了頻域分析,分別計算了它們在不同參數下的信噪比增益,分析了其抗噪聲性能。Class9 : scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking ( supervision ), life - saving and teaching apparatus and instruments ; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity ; apparatus for recording, transmission or reproduction of sound or images ; magnetic data carriers, recording discs ; automatic vending machines and mechanisms for coin operated apparatus ; cash registers ; calculating machines, data processing equipment and computers ; fire - extinguishing apparatus
類別9 :科學、航海、測地、攝影、電影、光學、衡具、量具、信號、檢驗(監督) 、救護(營救)和教學用具及儀器,處理、開關、傳送、積累、調節或控制電的儀器和器具,錄制、通訊、重放聲音和形象的器具,磁性數據載體,錄音盤,自動售貨器和投幣激活裝置的機械結構,現金收入記錄機,計算器和數據處理裝置,滅火器械。Laser supersonic sensor used in paper mill
造紙廠用激光超聲波傳感器This machine adopts a non - contact measurement method. all kinds of inspection devices such as photoelectric switch, laser measuring sensors and super voice wave measuring sensors etc are used in the measurement progress
本機全部採用非接觸式測量方式,跟蹤探測掃描使用了安全光幕、光電開關、激光測距傳感器、超聲波測距傳感器等多種傳感檢測探測設備。The technique core of the 3 - d outline tracking scan lies in the adoption of several photoelectric sensors, laser measuring sensors and super voice wave measuring sensors to carry on probing, the single chip makes the photoelectric signal examined as the control basis, and controls the step motor to drive measurement machines and probing sensors to make outline tracking and scans movement along high and breadth direction of the vehicle, and record its outline track, and the data measured is delivered to the computer, finally, acquires the size of the vehicle checked through the place of computer data processing
三維輪廓跟蹤掃描技術的核心在於採用多套光電傳感器、激光測距傳感器、超聲波測距傳感器進行探測,單片機把檢測到的光電信號作為控制依據,控制步進電機驅動測量機及探測傳感器在車長、車高和車寬方向上作輪廓跟蹤掃描進給運動,記錄其輪廓軌跡,並把測得的數據傳送到上位機,經上位機數據處理獲得被檢車輛的特徵尺寸。The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知,使傳感器相位偏置為/ 2 ,減小電極間距,提高電光重疊因子,減小器件插入損耗,採用合適的分段數,增加電極長度,增大光功率,降低激光的波長,減小相對強度噪聲,減小接收帶寬,對提高靈敏度的效果是非常明顯的。而減小天線長度,降低調制器電容,電極分段,都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率,採用較低的光學偏置,都可以增大線性動態范圍。Once again, rival technology for manned aircraft stole the thunder : stealthy designs to reduce the radar signature, precision weapons such as cruise missiles and laser - guided munitions and new sensors such as synthetic - aperture radar that could look through clouds
對手的人工駕駛飛機的科技再一次先聲奪人:為減少雷達信號而進行的秘密設計、諸如巡航導彈與激光導向的軍需品之類的精密性武器,以及一些新型傳感器,諸如可透視雲層的合成光圈的雷達。Pulsotronic gmbh & co. kg is a company operating within many ranges and offers ultrasonic sensors, sensors as well as laser sensors
Kg從事激光傳感儀器,超聲波感應器,傳感器的製造和銷售。The paper primarily researches a kind of nonlinearity of fiber - the effect of srs ( stimulated raman scattering ) to wdm ( wavelength division multiplexing ) system and the gain and noise properties of fiber raman amplification exploited with srs
本文主要研究了光纖中的一種非線性效應?受激喇曼散射對數字波分復用傳輸系統性能的影響,以及利用它所開發的光纖喇曼放大器的增益和噪聲特性。分享友人