tuned frequency 中文意思是什麼
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Tuned circuit type frequency meter
共振頻率計 -
By making full use of favourable narrow - band tracing filter character of pll and by combining the merits of dds such as super fine frequency resolution 、 high frequency accuracy 、 very fast frequency hoping with it, the pll / pll + dds frequency synthesizer presents wide band high quality source and super small frequency hoping step. while the electronically tuned filter abates the image interference and notably improves the selectivity. the theorem of frequency synthesizer and center - frequency - fixed filter is simply but adequately introduced first in this paper
課題中所採用的pll或dds pll鎖相頻率合成方法充分發揮鎖相環良好的窄帶跟蹤濾波特性，並結合dds的高頻率解析度、高頻率精確度和高速頻率捷變等優點，分別實現了系統所要求的高質量寬帶本振源和小步長頻率捷變；採用電調諧選頻技術，則大大改善了接收機的選擇性和抗干擾能力。 -
And i finished the layout design, chip test of line driver and equalizer in 2. 5gbps baseband copper cable transceiver and equalizer in the 1. 5gbps sata transceiver respectively. the main improvements and innovations in this thesis are as follows : 1 、 to design an analog equalizer tuned on - chip for 2. 5gbps baseband copper cable transceiver ; 2 、 to present an adaptive equalizer for 1000base - cx transceiver ; 3 、 to present an auto - gain control amplifier used in the adaptive equalizer for the 1000base - cx transceiver ; 4 、 to present an adaptive continuous - time gm - c filter in very high frequency for the adaptive equalizer for the 1000base - cx transceiver
論文主要的改進和創新有： 1 、設計了適用於2 . 5gbps基帶銅纜收發器系統片上可調的模擬均衡器電路； 2 、提出了一種新的適用於千兆以太網基帶銅纜收發器系統的自適應均衡器結構； 3 、設計了甚高頻自動增益控制放大器； 4 、設計了一種適用於千兆以太網基帶銅纜接收器均衡的自適應甚高頻連續時間gm - c二階帶通濾波器。 -
4 ) the tuning characteristics of doubly - resonant optical parametric oscillator propo ) output by changing crystal ' s temperature, opo ' s cavity length and pump frequency respectively are theoretically analyzed and experimental obtained the wavelength of the opo output can be tuned from 2038nm to 2227nm by the crystal ' s temperature changed of 5. 3, from 2044nm to 2219nm by the cavity length changed of 514nm, and 375mhz by the pump frequency continuously tuned 750mhz
當晶體溫度變化5 . 3時，得到2038nm - 2227nm可調諧下轉換光輸出；當opo的腔長相對于簡並點腔長變化514nm時，得到2044nm - 2219nm可調諧下轉換光輸出：當泵浦光頻率連續的改變了750mhz時，下轉換光的頻率相應連續調諧375mhz 。理論擬合與實驗結果基本一致。 -
In the third chapter, a methodologies to realize second - order band - pass filter with which center frequency tuned in a wide range using mcdi ( multiple output current - mode differential integrator ), these two kinds of mcdi are composed of pmos and nmos input transistors respectively, lastly we compare these two integrators " merits and disadvantages
第三章：提出了輸入級分別為pmos管、 nmos管的多輸出端電流模式全差分積分器，並由此構成了中心頻率連續可調的二階帶通濾波器，同時比較了二者的優缺點。 -
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。 -
If you have three tuning forks, each one of the second two tuned to a lesser resonant harmonic ( slower vibratory frequency ) than the one before it
如果你有3個音叉，和它之前的第一個相比，其它兩個每一個就會以一個比較低的頻率諧振（比較低的振動頻率） 。 -
The equivalent cavity model is used to deduce the threshold condition of the ecld, and the expression of the threshold carrier density n ( v ) when ecld is tuned to oscillate at different frequencies has been obtained. using the expression of n ( v ) and the carrier dependent refractive index, the simple basic equation describing the bistable characteristics has been derived after choosing an appropriate reference frequency nf
通過建立等效腔模型來推導外腔半導體激光器的閾值條件，得到ecld在不同頻率v振蕩所需的閾值載流子密度n （ v ）表達式，利用該表達式及相關的折射率表達式，在選擇合適的參考載流子密度n _ f后，導出了一個描述雙穩所需的基本方程。 -
If stray inductance and capacitance ( which may or may not be stray ) in a circuit should form a tuned circuit then that tuned circuit may be excited by signals in the circuit and ring at its resonant frequency
如果電路中的電感和電容（含分佈電感、分佈電容）形成了諧振電路，那麼在電路中信號的激勵下，這個諧振電路就會在其固有諧振頻率處產生「振鈴」現象。 -
The couplers of accelerator structures are important components of electron knear. the efficient delivery of power from rf sources to accelerator structures depends crucially on the coupler cavity. the input coupler cavity is to be well matched, that is to say, it must have proper coupiing. and it must be tuned to the synchronous frequency. in this way, we can obtain the maximum power. in the past, the decision of the coupler cavity dimensions is very difficult
加速結構的輸入耦合腔是電子直線加速器的重要組成部分。功率從功率源輸送到加速管中，就依賴于輸入耦合腔。輸入耦合腔在整個結構中必須有良好的匹配即有恰當的耦合度，還必須工作在諧振頻率。 -
Tuned radio - frequency amplifier
射頻調諧放大器 -
This is because the frequencies of a living organism inevitably influence the subject, so the sensor has to be tuned to correspond to the frequency of the living organism. it must be set at that optimal point of complete resonance with the human body
因為在分析的時候，人體振動的頻率難免會影響到分析的樣本，因此分析師必須將感應器的頻率調整到與自己一致的狀態，然後找出人體頻率和感應器頻率彼此共振的最佳點。 -
Tuned radio - frequency receiver
調諧式射頻接收機 -
The vibration control has two main types : initiative and passivity. i use the modulation frequency tuned mass damper to control the vibration of it and adopt ansys5. 5 to calculate the result of it
振動控制主要有主動和被動控制，我是應用被動控制的調制調頻質量阻尼器進行橋機的控制。
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