高功率靈敏度 的英文怎麼說
中文拼音 [gāogōnglǜlíngmǐndù]
高功率靈敏度
英文
high-power sensitivity- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 功 : 名詞1 (功勞) exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
- 率 : 率名詞(比值) rate; ratio; proportion
- 靈 : Ⅰ形容詞1 (靈活; 靈巧) quick; clever; bright 2 (靈驗) effective Ⅱ名詞1 (精神; 靈魂) spirit; ...
- 敏 : Ⅰ形容詞(靈敏;敏捷) quick; agile; smart; nimble Ⅱ名詞(姓氏) a surname
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 高功率 : high power高功率電子管 high-power tube; 高功率發射機 high-power transmitter; 高功率放大器 high-power amplifier
- 靈敏度 : [電子學] sensitivity; response rate; sensibility; sensitiveness; response; susceptibility; suscep...
- 靈敏 : sensitive; keen; quick; agile; acute
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Abstract : there are only two set values ( 30, 45 ) for interior angle of the stimulated directional power relay as the protection in phase to phase short circuit fault. an accurate setting formula for interior angle of the microprocessor - based directional power relay as the protection in phase to phase short - circuit fault is proposed and analyzed, users can set as a calculation value or at least an optimum in the formula. therefore the operation sensitivity and reliability of the directional relay would be improved greatly. the opinion is new and practical
文摘:保護相間短路的模擬式功率方向繼電器內角的整定值只有兩個( 30 、 45 ) ,用戶只能在這兩個值中選其一;分析並提出了保護相間短路的微機型功率方向繼電器內角的準確整定計算公式,用戶可以整定為該公式的計算值或至少為最合理的值,從而能顯著提高方向繼電器的動作靈敏度及可靠性,具有新見解及應用價值。In this thesis, wide - fov ( field - of - view ) optical systems with optical gain based on fov and optical gain of laser detection and warning optical system are studied. it can solve the problem of wide fov matching with small photosensitive surface, enhance the power received, increase detecting sensitivity, reduce the power of laser and decrease the cost of laser accordingly
本文正是針對上述問題,從激光輻射探測光學系統的視場和光學增益出發,研究寬視場有增益光學系統,解決大視場和小光敏面匹配的矛盾,增強接收到的光功率,提高探測靈敏度,降低對激光輻射源功率的要求,從而降低相應激光器的成本。According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d
本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光器的設計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。A soli state rely ( ssr ) is an electronc swithig device utilizing discrete semiconductors, integrated circuit and microelectronic technologics to provide electrical isolation and signla coupling between the control circuit and the output circuit without the use of moving part or contacts
本產品具有體積小、重量輕、靈敏度高、開關速度快、輸出功率大、無觸點抖動、無火花干擾、密封防水防磁防爆、高可靠、長壽命。We have demonstrated a novel voa based on high birefringence fiber loop mirror, which has many advantageous characteristics such as a simple structure, high flexibility, polarization independence, low insertion loss and low price, etc. experimental proof shows that it is convenient to realize the control of optical power by using this voa
2 .利用雙折射光纖環鏡設計並製作了一個結構簡單的可調諧光纖衰減器,具有靈敏度高,偏振無關,低插入損耗和低成本等特性。實驗證明它可以很方便的控制光功率。 3 .提出了一種由布拉格光纖光柵和高雙折射光纖環鏡共同構成波長選擇器件的摻鉺光纖激光器。The result shows, after the ameliorating, the spectrometer 6 - 6104 can be used conveniently, and it can work stably, and the errors has controlled in the minimum. its differentiate rate and light power collecting sensitivity approached the guideline of top grade spectrometers but its cost was less than the top grade spectrometers
實驗結果顯示,手動調節式實驗光譜儀經過改造后使用方便,工作穩定性較好,誤差控制在允許范圍內,自動化程度高,光譜解析度和光功率探測靈敏度都接近了高檔光譜儀的指標,具有質優價廉的特點。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。The study of one - dimensional ( 1d ) materials has become a potential frontier in nanoscience and nanotechnology in the last few years. this thesis focuses on developing new nano - biomaterials and their immobilization strategies in biosensor - fabricating for the purpose of improving the performance and long - term stability of biosensors. therefore, nano - sized flower - like zno ( chapter 2 ) and zno nano - rods ( chapter 3, 4 ) were synthesized by a simple hydrothermal method and a solvothermal route, respectively
本研究論文主要是通過發展新型的生物納米材料及其固定方法,以達到改進固定生物組分活性、提高傳感器靈敏度等目的,以此為出發點分別用水(第2章)和乙醇(第3 、 4章)做溶劑,利用溶劑熱法合成了片狀和棒狀的納米zno ,這兩種方法均具有實驗操作簡單、環境污染少、成本低、產率高等優點;這兩種方法所得到的材料均成功應用於生物傳感器的構建(酚類、過氧化氫、葡萄糖傳感器) 。The receiver works on active mode and passive mode in different time. in active mode, the receiver is narrow - band and high sensitive, and if phase - lock technology is used to stabilize receiving frequency. and in passive mode, the receiver is an all - power millimeter wave radiometer with periodic calibration to improve measure precision
此接收機採用分時工作體制,在主動工作方式時為窄帶的高靈敏度毫米波接收機,接收機中採用中頻鎖相技術,簡化了毫米波鎖相帶來的困難;在被動工作方式時為全功率型的毫米波輻射計,這種輻射計在每次測量后都採用兩個標準源對輻射計定標,實現周期定標,消除因系統增益波動和有效本機噪聲波動帶來的測量誤差,提高測量測量精度。Adopts high quality and high efficient pin photo - diode. head - amplifier adopts low - noise caas module, can receive super low optical power
採用優質量高靈敏度pin光電二極體前置放大採用低噪音砷化鎵模塊,可以超低光功率接Experiments on board shows that strain method to measure the shaft power has many advances, e. g., high sensitivity, wide measuring span, rapidly frequency - response, light hysteresis, small size and weight - light of the equipment, remote - controllable
應變電測技術在艦船軸系軸功率測試中得到廣泛的應用,是由於該系統具有靈敏度高,測量范圍廣;頻率響應快,機械滯后小;體積小、重量輕;可實現遙控等諸多優點。Because of the good sensibility, ultrasonic narrow band signal analysis technique with 1mhz central frequency was chosen to differentiate the heat treatment samples above - mentioned. there are obvious differences among heat treatment products in principal frequency, spectral peak ' s quantity, amplitude and distribution. that is to say, the technique of ultrasonic narrow band power spectral can be applied to characterize the microstructures of multi - phased alloy steels
利用窄帶信號頻譜分析技術靈敏度高的突出優點,選取中心頻率為1mhz的窄帶超聲信號,對上述不同熱處理試樣進行超聲功率譜分析,發現不同熱處理產物在功率譜主頻率、譜峰特徵(幅度、數量、分佈)等方面,都存在不同程度的差異。分享友人