頻率擺動 的英文怎麼說

中文拼音 [bīnlǜbǎidòng]
頻率擺動 英文
frequency swing
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 擺 : Ⅰ動詞1 （安放; 排列） put; arrange; set in order 2 （顯示; 炫耀） display; show off; put on; assu...
  • 頻率 : frequency; rate
  • 擺動 : 1 （搖擺） swing; sway; oscillate; pendulate; waggle; wobble; vibrate; wiggle 2 [機械工程] jiggin...
  1. Such tags could emit 128 different signals in parallel, allowing the collection of data about an animal ' s breathing rate, wing - beat frequency and heartbeat ( if it were a species that actually has a beating heart ) in addition to its geographical location

    佩帶器還可以發射128種不同的信號，這樣除了動物地理位置之外，還可以收集其它分門別類的數據，諸如動物的呼吸、翼擺、心跳頻率（針對有心跳頻率的動物）等等。
  2. 6. pneumatic draw knife, single motor controls the moving way, the moving frequency is adjustable

    6氣動刮刀，擺動方式由單獨電機控制，擺動頻率可調。
  3. The test proves that the caudal fin oscillation frequency, the maximum amplitude of vibration of caudal fin, the caudal fin strikes the water angle influence the fish ’ s speed ; the curve experiment has obtained curve radius of inertia advance curve and static curve ; the ups and downs experiment proves that the pectoral fin on different angle influences the fish to move ups and downs

    加減速試驗論證了尾鰭擺動頻率、尾鰭后緣最大擺幅以及尾鰭的最大擊水角度對魚體速度的影響;轉彎試驗測得了機器魚慣性前進轉彎和靜止轉彎時的轉彎半徑;在機器魚的升潛試驗中論證了胸鰭不同轉角對升潛運動的影響。
  4. This system uses multicenter synchronization sampling and dma sampling control method, which has high sampling frequency. the system can realize displaying and analyzing in real time

    該系統採用多通道同步採集，采樣頻率高，且採用dma控制方式，實時性強，能夠實現振動、擺度信號實時顯示和分析等功能。
  5. What is mainly discussed in this dissertation is as follows : the fault mechanism and vibration frequency feature of hydroelectric vibration are analyzed, induced and reorganized. the select and placement of detecting positions of parameters such as vibration, swing and pressure pulsation are researched, and the corresponding sensors are selected to monitor

    本文主要進行了以下工作：分析、歸納和整理了水電機組振動的故障機理和振動頻率特徵，對機組的振動、擺度和壓力脈動測點進行了選擇和布置，並選用相應傳感器進行監測。
  6. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  7. Firstly, the airfoil ' s classic flutter ( at small attack angle ), stall flutter ( near the static stall angle ) and response ( at large attack angle ) are analyzed. it is found from the numerical results that " lock - in " will occur at certain freestream velocity range near the static stall angle, where the frequency of the vortex will be equal to the natural frequency and the flutter has the characteristic of self - induced oscillation. when the attack angle is far from the static stall angle, the vortex will have its own frequency, which differs from the natural frequency, and the flutter has the characteristic of forced oscillation

    首先研究了二維翼型的古典顫振（小攻角） 、失速顫振（失速攻角）和動力響應問題（大攻角） ，得到以下結論：在靜態失速攻角附近的一定來流速度范圍內，分離渦會發生頻率鎖定現象，分離流的頻率與固有頻率趨于相同，這時的振動呈現自激振動的特點；遠離失速攻角時分離流頻率則擺脫固有頻率的影響，此時的振動具有強迫振動的特點。
  8. The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier

    本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。
  9. We did some analysis about the relativity between the vibration and the noise of the wheel. after the testing of the first line of guangzhou underground, we found that the existing wheel damper has nothing to do with the noise of wheel less than four thousands hz. compared of different contributions of the tread vibration and the web vibration on sound level of railway noise

    在實驗過程中，改進了對車輪的激振方式，利用單擺激振提高了激振力的精度;實驗分析了車輪阻尼器的結構、安裝方式及其動力學參數對車輪阻尼器降噪效果的影響;也分析了車輪振動與噪聲的相關性;現場測試廣州地鐵一號線的噪聲特性，確定了車輪阻尼器所要控制的頻率范圍;對比分析不同激振情況下，踏面徑向振動與輻板軸向振動對噪聲聲壓級的貢獻比例。
  10. Third, a solid lubricant embedded 40cr - ptfe bearing and a bronze c86300 - ptfe bearing were prepared. the comparatively tribological tests were performed in an oscillating sliding tribotester. the conditions were a contact mean pressure of 80 mpa, an oscillating frequency of 0. 13 hz and relative humidity of

    選擇40cr - ptfe鑲嵌型軸承與高強銅合金c86300 - ptfe鑲嵌型軸承在nh - 100型重載擺動摩擦試驗機上進行對比摩擦試驗，試驗條件為:承載壓強80mpa 、擺動頻率為0 . 13hz以及相對濕度為（ 60 3 ） % 。
  11. The natural frequencies of the vibration system are obtained by using the iterative perturbation method

    並對擺動活齒傳動系統振動的固有頻率進行了求解和分析。
  12. By applying dwt and mallat in wavelet analysis, the oscillation signal of active power on transmission line is decomposed and reconstructed ; the strategy of upfc ' s secondary control based on wavelet is proposed by using the reconstructed active power as input signal. simulation results verify the efficiency of damping subsequent swing quickly under serious power oscillation circumstance that is hard to damp by ordinary upfc controller. the system dynamic stability is apparently enhanced

    針對系統功率波動頻率較高情況下upfc對系統后續擺穩定的控製作用難以得到充分發揮的情況，採用小波分析的mallat塔式演算法對系統功率波動信號進行分解，並基於mallat塔式重構演算法的思想濾除了信號的冗餘擾動成份，尋找到一個高壓縮比、低相對誤差的重構功率信號，從而使其能夠符合upfc實際控制需要。
  13. By using the method of transfer matrix, the dynamic model of the driving shaft vibration of swing movable teeth reducer is built. the calculation formula for natural frequencies of the flexural vibration of the driving shaft is derived

    應用傳遞矩陣法，建立了擺動活齒減速器輸入軸振動的動力學模型，導出了輸人軸橫向彎曲振動的固有頻率的計算公式。
  14. The experiment results show that when other initial parameters are kept constant, the heat and mass transfer of falling film absorption under the condition of normal vacillation of fishing vessels is better than that in static status ; the amplitude and period of vacillation directly influence the performance of the absorber and an adequate decrease of vacillation period or vacillation amplitude is beneficial to the absorption performance

    實驗結果表明，當其他初始參數一定時，在漁船常見的搖擺振動條件下，降膜吸收器的熱、質傳遞優于靜態下的情形；搖擺振動頻率和幅度直接影響降膜吸收性能，適當減小搖擺周期或搖擺幅度均有利於提高降膜吸收性能。
  15. When the velocity is changed, in order to change the amount of seeding transplant, single - chip microcomputer adjusts the frequency of electromagnet

    當行走速度發生改變時，單片機改變方波的頻率，經驅動電路改變電磁鐵的吸合頻率（激振頻率） ，以達到調節擺秧量的目的。
  16. Electrical - controlled appliance includes single slice microcomputef, power supply, keyboard, liquid crystal display. the machine for body functional rehabilitation is controlled by enactment of five parameters, which are speed, range, position, frequency, time. the enactment of the five adjustable parameters used to realize six function that are anns stretching and circumrotating, wrist swing, finger stretching, crura anuckle stretching, anklebone swing

    將肢體運動康復機本身選用的六項功能用以下五個參數的設定來控制，即用速度、幅度、位置、頻率、時間這五個可調參數的控制來實現肢體運動康復機中上肢手臂伸屈、手臂旋轉、腕關節上下左右擺動、手指伸屈、下肢膝關節伸屈、踝關節上下左右擺動六個功能。
  17. ( 3 ) we investigate the nonlinear dynamics of the inverted pendulum system in 1 / 1 internal resonance and 1 / 2 sub harmonic resonance. using the multiple method of scale, the averaged equations of the inverted pendulum system are obtained

    （ 3 ）應用多尺度方法研究了倒立擺系統在內共振和1 / 3亞諧共振情況下的非線性動力學響應，得出系統的平均方程，得到了系統的頻率響應方程，對周期解和局部分叉進行了分析。
  18. And explain the correlative parameters and the mechanics of the caudal fin locomotion. the equation of the robotic fish caudal fin locomotion is deduced in the third section

    在第三部分，本文分析了魚類尾鰭推力方程，說明了提高尾鰭擺動的振幅和頻率可以提高尾鰭的前向推力。
  19. The theory of fuzzy reliability design is applied to study the anti - vibration design of the driving shaft of swing movable teeth reducer. the randomness of working frequency and the fuzziness of the critical speed bonder are discussed. the corresponding formulae of calculating the fuzzy reliability are presented

    將模糊可靠性設計理論引入擺動活齒減速器輸入軸的抗共振設計中，分析了擺動活齒減速器工作頻率的隨機性和共振區邊界取值的模糊性，並給出了相應的模糊可靠度計算公式。
  20. Furthermore, the " mass - spring " system formed by the sleves and the springs, was regularly oscillating at it natural axial frequency, generating vibrations

    而且，由軸套向彈簧所組成的「質量彈簧」系統會以其自然的軸向頻率發生有規律的擺動，並導致振動現象的出現。
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