鎖相檢測 的英文怎麼說

中文拼音 [suǒxiāngjiǎn]
鎖相檢測 英文
phase locked detection,pld
  • : Ⅰ名詞1 (安在開合處使人不能隨便打開的器具) lock 2 (姓氏) a surname Ⅱ動詞1 (上鎖) lock up 2 ...
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • 檢測 : check; detection; test; gauging; detecting; sensing; [工業] checkout; measuring
  1. The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    在理論分析的基礎上,提出了以下的實用技術: 1 )用譜分析方法從截獲的信息中自動提取同步信息; 2 )用積分投影、微分定位的方法進行,實現可靠的和電子穩像; 3 )將電子穩像技術用於重加濾波和梳狀濾波的濾波方法,改進了濾波效果; 4 )通過圖像信息熵實現圖像採集參數的自動調整,改進了圖像採集的質量; 5 )設計了用於儀器定標的標準試圖,可以對泄漏信息進行定量
  2. The single - chip microcomputer control technology has been applied in the system to carry out monitoring and protective functions for the asynchronous motors controlled. combined with suitable peripheral interface, disposition and flexible software, the mcs can measure the current and voltage signals of the motors. based on the measurements, the computation, judgment and decision are made to implement the phase sensitive short circuit, overload, supply over - voltage, supply under - voltage, over - thermal, leakage lock - out and loss of phase protective function

    系統採用單片機控制技術,完成所控制電動機的控制功能,並對所控制電動機的電壓、電流等信號進行、計算、判斷和處理,實現短路、斷、過載、欠壓、過壓、過熱、漏電閉等保護功能,並提供本質安全型輸入、輸出介面,能與煤礦井下監監控系統聯網運行。
  3. Because the fluorescent signal is weak, the lock - in amplifying technology is used to measure the concentration of the gaseous oxygen and the dissolved oxygen

    根據熒光信號弱的特點,採用放大技術,通過指示劑熒光壽命的變化來實現對氣態氧和溶解氧濃度的
  4. Most of the traditional real - time detecting method for harmonic current is based on sinusoidal voltage or locking the voltage phase accurately, which deviating from the real circumstances

    由於傳統的諧波電流實時方法大都是基於正弦的電壓系統或對于電壓波形達到精確的前提,而現實情況卻往往不是如此。
  5. In this thesis, phase - locked loop ( pll ) technogies are used to acquire phase of fundamental current in bais current, which enhances the detecting precision of bais current. and we want the phase of bais current and the phase of system current is the same, so this thesis think of locking the phase of bais current which based on this theory to sure the security and the reliability of apf

    本文採用技術,以獲得畸變電流中基波電流的位,進一步提高了畸變電流的精度,並據此原理考慮定補償電流的位,使補償電流與系統電流位同步,保證apf安全可靠運行。
  6. Research about the deadlock detection method experienced a long time. ac - cording to the resource requirement types of the processes, the distributed computa - tion models can be divided into single resource model, and model, or model and and - or model. generalization of these models is stronger gradually and the dead - lock topologies of these models are single cycle, cycle and knot respectively

    對分散式死演算法的研究由來已久,根據進程對資源的需求條件不同,分散式計算可以被分為單資源模型、 and模型、 or模型以及and - or模型,這些模型的通用性逐漸增強,它們在系統等待圖中所產生的死拓撲結構應地表示單環、多環和結(后兩種模型都為結) ,學者們對各種演算法的研究過程也是按著這個拓撲結構的順序展開的。
  7. We demonstrate the feasibility and superiority in the digital phase - locked detection applying in the life - span of the fluorescence quenching in the base of the phase - locked phase theory

    理論上論證了數字應用於熒光壽命的可行性和優越性。
  8. The project detecting the oxygen density by measuring the life - span of the fluorescence quenching has better advantages such as the more sensitive, the better anti - jamming, the more system stabilization, the better dynamic area than by measuring the intensity of the fluorescence quenching

    鎖相檢測熒光壽命的方案對直接量熒光強度來定氧氣濃度的方法而言,具有靈敏度高、抗干擾性強、系統穩定性能好、動態范圍大等優點。
  9. According to the principle of correlation detection, an automatic measurement system for extinction ratio of polarizer consisted of monochromator and dsp lock - in amplifier and compurer is designed not only to eliminate the influence on measurement accuracy caused by drift of intensity of light source but also to obatain approximate extinction spectrum

    摘要基於原理設計了一套由單色儀、數字放大器和計算機聯合使用的透射式偏光鏡消光比智能化試實驗系統,採用雙頻雙光路分光單探器接收放大器分離信號比對法進行源補償量,克服了光源光強漂移所帶來的影響;實現了可見光區消光比的精確自動量,而且可以得近似的消光光譜。
  10. A lock - in amplifier is used to supply the driving signal and to detect the output signal corresponding to the sample ' s strain

    使用放大器提供驅動信號,並同時對應于樣品形變的輸出信號。
  11. The digital phase - locked loop designed by isp, which is adapted to optical grating readout is briefly introduced

    用isp設計的適合於光柵裝置的數字環在第七章作了簡要的介紹。
  12. Photoelectric detecting circuit is constituted of four parts, i / v conversion, lock - in amplifier, low - pass filter and operation

    光電電路由四部分組成,分別是i / v轉換環節、放大環節、低通濾波環節、運算環節。
  13. Contouring ' s measument based on phase locked loop profilometry with grating projection

    基於循環投影的物體形貌
  14. After pin ’ s noise and equivalent circuit are discussed, this thesis introduces technology and methods of signal management, including pre - amplifier and differential - amplifier, bpf, lia, etc. at the end of paper, the system of photoacoustic spectrometer is proved by experiment

    本文在討論了光電二極體的噪聲和等效電路之後,介紹了信號處理的技術和方法,包括前置放大器、差分放大器和有源帶通濾波器的設計及用於微弱信號放大技術。
  15. Based on above - mentioned schemes, the power detection system based on tms320vc5410 is designed, which realizes collection, a / d, digital signal processing. keyboard. display and uart ? the ad73360 gather chip commonly used in power system is used in front of the power detection system, and the circuit of frequency multiplication phase - locked is consisted of phase - locked loop device ? d4046 and frequency division device cd4060 to produce the gather signal of ad73360 frequently, the gather wave and re sult can be displayed on lcd

    基於上述方案,本人設計開發了基於tms320vc5410的電力採集系統。基本實現了採集、 a d轉換、數字信號處理、鍵盤顯示、異步通信等系統軟硬體設計。該系統前端採用電力系統常用的ad73360採集晶元,倍頻電路由環cd4046與分頻器cd4060一起構成,產生ad73360採集觸發信號。
  16. Based the research on the laser beam drift feedback control technique, analysing the beam drift and its frequency components, a laser beam directional stability method is studied in the thesis in detail, with its measurement and control circuit system that combines the laser beam intensity modulation and the beam drift feedback control technique. in this method, at first the laser beam intensity is modulated with the acoustooptic modulator, then the lock - in amplifier is applied to detect and demodulate the modulating signal, at last a feedback control signal is generated by the dsp control circuit at last, including : 1

    本文在原有的激光光束漂移量反饋控制準直技術的基礎上,對光束漂移量信號的數據和頻譜進行了分析,重點研究了一種集聲光調制光強與光束漂移量反饋控制準直技術於一體的激光光束方向穩定方法及其控電路系統,該方法通過聲光調制實現光強調制,接著通過放大電路並解調調制信號,然後通過dsp控制電路進一步對光束的漂移量進行反饋控制。
  17. Based on phase - locked multi - frequency division method, and then a method of using lsi - isp devices to design to realize integrating designation. this paper briefly introduced isp devices and hardware description language vhdl, and designs a kind of high integrated grating digital readout based on division theory and isp design theory

    文中將在系統可編程器件和應的硬體描述語言vhdl作了簡要介紹,本文還詳細介紹了基於細分理論和isp設計思想的高集成度的光柵裝置。
  18. In the system, control unit accomplishes back - emf zero - crossing information reading and closed loop commutation. the system eliminates the pwm interferences and the commutating interferences by filtering with software algorithm. in order to make the bldc commutate exactly, the method of three - point estimation is used for phase locking in the system. the system also accomplishes several important objects, such as tmppt of photovoltaic arrays, unmanned supervision of the system, fault detection etc. the results of the experiment show that the device, which is made on the base of the principle above, can control the motor to complete the exact commutation

    系統以motorola單片機jl3為核心,完成了系統外圍硬體電路和控制軟體設計,實現了直流無刷電機反電勢過零,利用軟體濾波的方式消除了pwm波干擾及換干擾;採用三點預估演算法,進行定,以完成直流無刷電機準確換;同時實現了光伏陣列工作點的tmppt跟蹤、系統無人監控和故障等功能。
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