resonant frequency 中文意思是什麼

resonant frequency 解釋
共射頻率
  • resonant : adj. 共振的;能共鳴的;反響的,有回聲的。adv. -ly
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  1. 2. to the circular plate working in axial symmetry vibration at resonant frequency, the equivalent mass in analytical form is derived, that ' s is, and further, the equivalent compliance is obtained using the formula c = 1l 2 m

    對于工作在諧振頻率下做軸對稱運動的階梯圓板,採用解析法求得它的等效質量,並由c = 1 / ~ 2m求得等效彈性系數。
  2. In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system

    其次,通過對整個系統諧振頻率變化的分析和研究,設計了以鎖相環cd4046為核心的鎖相環控制電路,同時,在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上,進行了系統模擬,得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能,又擁有模糊控制較好的動態性能,系統魯棒性能好,同時也提高了逆變器的效率。
  3. E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat

    與共振情況(即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致)相比,非共振條件(即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差)一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。
  4. The effect of the parameter of the spring beam on resonant frequency, sensitivity, cross sensitivity of the structure of the accelerometer, the effect of the electrostatic force on the accelerometer, the dynamic performance of the accelerometer are analyzed

    論文採用了一種新的建模模擬法,即原理級描述模擬法,建立了叉指式微加速度計的參數化機電混合系統模型,對其進行分析研究。
  5. Because of the temperature rising of ultrasonic motors, load changes, and vicinal surrounding changes and so on, the resonant frequency will shift, leading to working stability drop

    由於超聲波電機的溫升、負載變化及周圍環境變化等原因,使電機的諧振頻率發生漂移,這將影響超聲波電機運行的穩定性。
  6. Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity

    通過原子上能級與光子頻率帶隙邊緣的相對位置或者光子態密度,可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象,如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比頻率分裂等。
  7. Since the variational method is useful for determining characteristic quantities such as resonant frequency and impedance, it is mainly used in this thesis

    變分法在確定諸如諧振頻率和阻抗等特徵量方面非常有效,因而本文主要採用了變分法。
  8. Relationship between the gyro ’ s bandwidth and sensitivity and the resonant frequency differential ratio is derived through frequency analysis. the bandwidth of the gyro increases as the resonant frequency differential ratio increases ; but the sensitivity decreases as the resonant frequency differential ratio increases

    增大驅動軸和敏感軸之間諧振頻率的頻差,可以增加微陀螺的帶寬,但是降低了微陀螺的靈敏度,這為設計石英音叉結構參數時,確定驅動軸和敏感軸諧振頻率提供了指導依據。
  9. A patch antenna with etched holes on the ground plane is also studied. the performance of the antenna at the resonant frequency is analyzed by using the fdtd method together with the pml boundary treatment. the results show that the surface waves are suppressed greatly, the bandwidth is improved and a 1 odb reduction on the sidelobe level is achieved at the 110 and 260 directions in the e plane

    全面地研究了地面腐蝕周期圓孔結構的電磁晶體貼片天線在基波頻率處的性能,用fdtd方法並結合pml邊界處理技術對該天線所取得的研究結果顯示,本文設計的地面腐蝕型電磁晶體結構抑制了貼片天線中的表面波,增加了天線的帶寬,並有效地削弱了旁瓣,使天線的e面方向圖上110和260方向的兩個旁瓣被削弱了10db 。
  10. Finally, this paper also suggests that the application of blade resonant frequency measuring instrument should be combined with a mathematic method of two - - grade fuzzy universal appraisal to form a novel and practical procedure to make a comprehensiye evaluation on the status of impel ler blades

    最後,本文還提出了將葉片共振頻率測試儀與二級模糊綜合評判的數學方法相結合,對葉輪的狀態進行綜合評價的新穎實用的方法。
  11. Using an lc circuit as a power supply filter can actually multiply the power supply noise at the filter " s resonant frequency. use inductor with low q to overcome this

    使用lc電路作為電源濾波器能精確地在濾波器的諧振頻率點處乘以電源噪聲,使用低q電感來應對。
  12. Thin films of ferroelectric materials can be developed to present very few losses and add no significant weight to the antenna structure. the permittivity of these materials changes with an applied dc voltage ; and this change can be used to control the resonant frequency of an antenna

    將鐵電材料應用到天線的設計中,外加直流偏壓可以控制鐵電材料的介電常數,從而控制天線的諧振頻率,這樣就可以製作出可調諧天線。
  13. To meet the bandwidth requirements, a two - layer electromagnetically coupled rectangular microstrip antenna was introduced to the system. the influence of the inset position and the air thickness between the two layers on the impedance, resonant frequency, as well as the bandwidth was investigated

    為使天線達到系統要求,本文設計了兩層電磁耦合矩形微帶天線,分析了影響天線性能的微帶饋線插入深度,微帶饋線與貼片間距以及空氣層厚度這三個參數。
  14. Detail view of sensor to measure the inner pipe ' s resonant frequency

    用來測量內管共振頻率之感測器詳圖。
  15. On basis of this solution, the influence of flow to the vibrating pipe is analyzed and the method of obtaining resonant frequency and resonant time are given

    之後,根據此解,對來流雷諾數的影響進行了分析,並給出了求解、分析共振頻率及共振時刻的方法。
  16. A fft spectrum analyzer was used to measure the resonant frequency

    試驗時採用六種實大尺寸試材,共振頻率之測定系利用fft頻譜分析儀。
  17. The simulation shows that, under inductor self - resonant frequency ( serf ), substrate loss is mainly caused by eddy current loss

    模擬驗證表明,在自諧振頻率( self - resonantfrequency )范圍內片上集成電感襯底損耗主要是渦流損耗。
  18. Firstly, the strain gauge method was used to measure the time difference of stress wave passing through two gauges adhered on the surface of test piece and also their main frequencies secondly, a 3 - component dynamometer was used to measure the resonant frequency of timber six kinds of full size timber were used for test

    本研究旨在研發兩種新的應力波計測技術,其一為利用應變規來測定兩標點間之應力波傳遞時間差及試材之共振頻率,藉以計算試材之音速及動彈性系數,其二為利用三向動力計來測定試材之共振頻率。
  19. A microstructure resonant pressure sensor measures applied pressure by detecting change of resonant frequency of its mechanical resonator. the sensor is characterized by its very small size, high accuracy, excellent stability and convenient interfacing with digital electronics, showing broad application prospects

    微結構諧振式壓力傳感器是通過檢測其機械諧振器諧振頻率的變化來實現壓力測量,特點是尺寸小,精度高,穩定性好,易與數字電路介面,具有廣闊的應用前景。
  20. The characteristics of the full bridge series resonant converter with the separate transformer are analyzed. the resonant frequency and other circuit characteristics are discussed. the full bridge series resonant converter is analyzed by circuit simulation

    對帶可分離變壓器的全橋串聯諧振變換器的電路特性進行了分析,分析了變換器的諧振頻率,利用正弦等效的方法分析了變換器的電路特性,對雙極性控制和移相控制全橋串聯諧振變換器進行了電路模擬。
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