frequency-sensitive 中文意思是什麼
frequency-sensitive
解釋
頻敏的-
Variable voltage and variable frequency ( vvvf ) inverter control technology applied by ford passenger lift extends the utilization from the elevators drive system to the door machine system, plus its matching none link lever synchronous belt type door machine structure, it results in the more smooth sensitive and secure door open and shut. the passengers feel the doubled warmth in entering into and exiting the elevators
福德乘客電梯所應用的變壓變頻（ vvvf ）逆變器控制技術，從電梯驅動系統延伸運用到了門機系統中，加上與之相匹配的無連桿同步帶式門機結構，使電梯門的開啟和關閉更加平穩、靈敏和安全，令進出電梯的乘客倍感親切。 -
This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。 -
In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation
本文主要介紹了偏振無關光纖michelson干涉型微弱磁場傳感器信號處理的方案:通過閉環控制工作點演算法使干涉儀工作在正交工作點處，再利用相敏檢波演算法提取傳感器輸出信號的基頻分量，以測量直流磁場的大小。 -
The planet vibrates at a very low frequency ? too low for our ears to pick up, but enough that geologists get an annoying background noise on their sensitive instruments
行星振動的頻率很低，我們耳朵很難分辨出，但在地理學家靈敏的儀器上卻會收到一個非常令人討厭的背景噪音。 -
A concentration of receptor cells in their inner ear makes bats extremely sensitive to frequency changes
一些蝙蝠內耳里的受體細胞的集中使它們對頻率的變化極其敏感。 -
( 5 ) the frequency modulation effects of positive ( negative ) dipole and positive ( negative ) unipole forcing source on lfo have the same sensitive region
（ 5 ）正（負）偶極和正（負）單極對大氣的低頻振蕩調制有相同的敏感區。 -
Bridge can be detected by the transformation of structure mode parameters with the modern technology of signal test. the vibration frequency is obtained easily in the measure, but it is n ' t sensitive to the transformation of mass and rigidity. so it is difficult to identify by test system when the damage of structure reach to the limit damage degree
在實際的工程測量中最容易獲取的結構模態參數就是振動頻率，但是振動頻率對質量、剛度的變化具有弱靈敏性，這使得即使結構的破損程度達到了極限破損程度，振動頻率的變化也很難被測試系統識別。 -
The effect of static magnetic field on the growth of eschrichia coli was discussed by the sensitive response of spqc sensor to the conductivity of solutioa a relative frequency shift response model was derived on the basis of theory analysis and the relative parameters were estimated
利用spqc傳感器對溶液電導率的靈敏響應，探討了了一定強度的靜磁場對大腸桿菌的生長狀況的影響。在理論分析的基礎上，導出了相關的頻移響應模型，估計了有關參數。 -
To receive energy transmitted in a steered beam by any of the three scanning methods, the applied frequency, time, or phase relationships are maintained at each element, which has the effect of making the radar sensitive to energy from the direction of transmission
仍然以每個單元接收通過三種掃描方法? ?頻率，時間，相位關系控制波束發射的能量，這使雷達對發射方向的能量敏感。 -
A large amount of experience data accumulated through long term operation is introduced. combined with the definition of relative requirements, the choosing and definition of operation index of high - frequency channels specially used for protection of hubei electric power network are discussed and elaborated through calculation and analysis such as input impedance and channel impedance of transmitter, sensitive voltage of received signal, redundancy of received signal, warning of channel redundancy and warning of channel faults etc
引用了長期運行中積累的大量經驗數據，通過計算分析，結合有關規程規定，探討和闡述了湖北電網繼電保護專用高頻通道諸如收信機輸入阻抗及通道阻抗、收信靈敏電平、收信裕度、通道裕度告警、通道異常告警等運行指標的選取和確定。 -
Synchronization is very important for mimo - ofdm system because it is very sensitive to time and frequency offset
Mimo - ofdm對時間和頻率偏移非常敏感，因此mimo - ofdm同步顯得尤為重要。 -
Aimed at the characteristics that multi - carrier transmission is sensitive to frequency offset and require high synchronization performance, firstly multi - carrier ofdm technique is introduced, the influence of synchronization offset to ofdm system is analyzed and two kinds of typical synchronization methods are given based on pilot and cp in the paper
針對多載波傳輸對載波偏移敏感，對同步要求高的特性，論文首先介紹了多載波ofdm技術，分析了同步偏移對ofdm系統性能的影響，給出了基於導頻和循環前綴的兩種典型的同步方法。 -
The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy
利用fm光譜法將激光單次通過碘吸收室進行線性吸收，再經信號檢測、混頻、積分和高壓放大等伺服電路，實現了在多普勒曲線中心處的頻率穩定，頻率穩定度和復現性可達10 ~ （ - 9 ）量級。 -
Introducing abcd theory, the laser mode was analyzed ; with thermal effect consideration, a short folded - cavity resonator which was not sensitive to thermal effect was designed. thus, the requirements for efficient doubling frequency were satisfied. 3
採用標準abcd傳輸矩陣理論，對激光器腔模式進行了詳細的分析，在充分考慮熱效應的前提下，根據實際情況，合理設計出對熱效應不敏感的三鏡折疊腔，產生兩個光腰，既滿足了泵浦光能量的充分利用，也滿足了縮小光腰提高倍頻效率的要求。 -
At the same time, it uses a frequency translator to obtain a frequency shift, which is equal to the brillouin frequency in fiber. then the detecting pulsed light and the cw reference light can coherent. this method greatly improved the system ’ s sensitive and signal to noise ratio ( snr )
同時在探測光路中引入一個光移頻環路，使探測光移頻后再經光纖中布里淵頻移，其後向布里淵散射光頻率與參考光束大致相當，可進行相干自外差探測，大大提高了系統的探測靈敏度以及系統的信噪比。 -
Pulse repetition frequency of middle section of male courtship signal declined from start to end, the average declining range was 4. 0 hz. through cutting and combining to courtship signals, we found sensitive acoustic section to female was the middle part of male courtship signal and to male was female courtship signal
門）褐飛虱求偶鳴聲中的敏感聲學片段和敏感聲學因於利用daasias對褐飛虱雌、雄蟲分別口放異性求偶信號及其片段組合，結果表明：雄蟲求偶嗚聲信號m片段是雌蟲的敏感聲學片段，雌蟲求偶嗚聲即是雄蟲的敏感聲學片段。 -
Mimo - ofdm has been regarded as the key technology of b3g communication system because it can improve system capacity and spectrum efficiency. however, ofdm is very sensitive to frequency offset
由於能夠顯著改善頻譜效率、提高數據傳輸速率和系統容量， mimo - ofdm技術被廣泛認為是后三代移動通信系統（ b3g ）的關鍵技術。 -
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。 -
Consider the fact that natural frequency can reflect the structure entity performance but cannot be sensitive to the structure local damage identification. in many cases, structure damage in deferent location can cause almost the same decrease in low frequency, so this method cannot ascertain the definite damage location
考慮到固有頻率能夠反映結構的整體性能，但對結構中局部微觀損傷的識別不靈敏，在很多情況下，結構中不同位置的損傷引起的結構低階頻率下降幾乎相同，因此用頻率參數很難準確確定結構損傷位置。 -
So we present a novel microphysiometer based on mlaps ( multi - light addressable potentiometric sensor ) in which different sensitive membranes are illuminated in parallel with multi - light sources at different frequencies, the response amplitude of each frequency component can be measured on - line by parallel processing algorithm. by the experiments, we can analyze the relations of the extracellular environmental h, k, ca ions under some drugs and estimate these drugs effects
我們在laps表面用pvc成膜法，沉積這三種離子敏感膜，用三個不同頻率（ 3khz 、 3 . 5khz 、 4khz ）的調制光分別照射laps的三個敏感膜，所測量的光電流（電壓）包含了這三種敏感膜的響應，即測量信號由這三個頻率組成。
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