cutoff frequency 中文意思是什麼

cutoff frequency 解釋
截頻
  • cutoff : 1. 〈美國〉近路，捷徑。2. 【機械工程】停車（裝置）；【火箭】切斷，停止工作。3. 〈美國〉運河。
  • 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. The faculae arise with change of the cutoff frequency when the wave - guide transforms from symmetry to asymmetry. for each pattern rank of the planar wave - guide, the light with the cutoff frequency change will be leaked out and captured by the ccd camera

    對存在於對稱平面波導中的各個模次的光，將有的光被泄漏，而ccd所攝到的則是其中被反射的一部分。
  2. Using a strained si layer as a channel in cmosfet may increase the mobility of carriers and thus enhance the device ’ s performance considerably such as transconductance and cutoff frequency

    在sige虛擬襯底上生長應變si層做器件溝道，將大大增加載流子的遷移率，從而提高器件的跨導和其他性能。
  3. Taking into account the boundary conditions, two results were gotten : 1 ) the nonlinear medium provides gain to small ripples which is beyond the bespalov - talanov cutoff spatial frequency ; 2 ) large ripples can also get large gain

    而考慮邊界條件以後，出現了這樣兩個特徵：在b - t理論截止頻率以外的一些小紋波依然有一定的增益；同時大紋波也有較大的增益。
  4. As a result, the cutoff frequency of sbd is limited at a lower level. now, we can grow sub - micro film of silicon using uhv / cvd technology. then we make an original device sbd of high frequency

    現在，我們浙江大學硅材料國家重點實驗室利用uhv cvd技術，生長出亞微米厚的薄硅外延層，在此外延層上研製出高頻肖特基二極體原型器件。
  5. The researches have proved the current mode superior to the voltage mode in high - frequency applications. in the paper a general integrator is completed to synthesize a bilinear si filter with a cutoff frequency of 17. 2mhz

    電流模技術的研究已經證明其高頻應用中具有優于電壓模技術的特性，文中對通用積分器加以完善，推導出雙線性變換的開關電流濾波器，其截止頻率達到17 . 2mhz 。
  6. Analysis of effects of trains on cutoff frequency rectangular tunnel with ridged waveguides method

    列車對矩形隧道電磁波傳輸影響帶脊波導分析
  7. When frequency slightly higher than cutoff, using perturbation method it is to know that tunnel wall wet make attenuation of electromagnetic wave lower not only in rectangular tunnel but also in circular tunnel

    當頻率略高於隧道截止頻率時利用微擾法可知：不論是矩形隧道還是圓形隧道，隧道壁潮濕使電磁波的衰減率降低。
  8. When frequency much higher than cutoff, using classical formulation method it is to know that tunnel wall wet make attenuation of electromagnetic wave increase in rectangular tunnel and make attenuation of other electromagnetic wave mode increase but te mode with tunnel wall permittivity

    當頻率遠高於截止頻率時，利用傳統公式法可知：矩形隧道中隧道壁濕潤引起衰減增大；圓形隧道中e模式衰減率因電容率的增大而減小，其他各模式則因電容率的增大而增大。
  9. In the paper a gmc filter with a cutoff frequency of 29. 8mhz is implemented. an effective improvement is made in cmfb ( common mode feedback ) through using a differential amplifier with four inputs. transconductors are tuned through comparing two voltages, which helps to stabilize the cutoff frequency

    文中實現了跨導電容濾波器，其截止頻率達到29 . 8mhz ；採用四輸入端的差分放大器使共模反饋得到了有效的改善；通過簡單的電壓比較實現跨導器的調諧，有助於穩定截止頻率。
  10. The specification is that the cutoff frequency must be more than 15mhz, the maximum passband ripple must be 0. 2db and the minimum stopband attenuation must be 40db

    該濾波器要求截止頻率大於15mhz ，通帶最大紋波為0 . 2db ，阻帶最小衰減為40db 。
  11. The result shows that, the size of the coupling port has strong influence on the external quality factor of the output cavity, while the size of the coupling line and the capacitive metal rods mainly affect the tuning frequency of cutoff waveguide filter

    另外，由於耦合接頭相當于在截止段中引人了一個附加電感，這使濾波器諧振電路的品質因數變大，諧振峰變窄。
  12. Measurement method for dielectric properties of fine ceramics in millimeter wave frequency range - part 1 : cutoff waveguide method

    毫米波頻率范圍內精細陶瓷介電性能的測量方法.第1部分:截止波導法
  13. The results also indicate that, in a piece of gain medium, the cutoff frequency, " the most quickly growing frequency " and the integral exponential gain are variables of the beam intensity, medium gain coefficient and propagation distance

    在考慮了介質的增益后，截止空間頻率、最快增長頻率以及最大增長因子不再像原始b - t理論中那樣保持不變，它成了和光強、介質增益系數及傳播距離有關的一個量。
  14. In the paper four usual transformations from s - domain to z - domain are introduced to show the superiority of the bilinear transformation in high - frequency applications. then a novel sc architecture is produced to finish a filter with a cutoff frequency of 17. 8mhz. the accurate bilinear result is reached by dual - rate sampling

    文中介紹了四種常用的s域到z域的變換，說明雙線性變換在高頻應用的優點；然後，運用一種新穎的開關電容結構組成濾波器，通過雙采樣的原理導出準確的雙線性變換，其截止頻率達到17 . 8mhz 。
  15. Based on the nonlinear paraxial equation and b - t theory, a differential equation, which describes the small - scale self - focusing in gain ( loss ) media has been derived. the change rule of the maximal gain frequency, cutoff frequency and integral exponential gain have been analyzed approximately

    我們首先從非線性近軸波方程出發，基於b - t理論的思想，在考慮了介質的增益（損耗）特性的情況下，推導得出了小尺度自聚焦所滿足的微分方程，並通過近似方法分析了最大增長頻率、截止空間頻率及積分指數增益等的變化規律。
  16. The relationship between time delays and cutoff frequency of open loop and the result that the longer the delays, the lower the cutoff frequency of open loop and the tracking precision are educed

    得出延遲越大，系統可實現的開環截止頻率越小，跟蹤精度越低的結論。
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