axis frequency 中文意思是什麼
axis frequency
解釋
中心頻率-
The relative frequency polygon has the same shape as the frequency polygon made from the same data set but a different scale of values on the vertical axis.
根據同一資料繪制的相對頻率多邊形與頻率多邊形的形狀是相同的，只是縱軸上的標尺不同。 -
The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes
本文就是在此背景下，利用金屬波導和單軸晶體的一些特性，結合麥克斯韋方程組和波導的邊界條件，從三種不同的情況研究了光在對稱平面單軸晶體金屬波導（波導層是單軸晶體，兩個波導界面均為金屬）內的傳輸特性，其主要貢獻為，首次解析地得到了這種波導結構下模式場的精確解，並發現了一些有用的特性： （ 1 ）模式場的性質因單軸晶體的性質不同而異； （ 2 ）當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時，波導中傳輸te波和tm波，只不過其主模因單軸晶體的性質不同而異，當波導層介質為負單軸晶體時，波導主模是te波主模，而波導層介質為正單軸晶體時波導主模是tm波主模。 （ 3 ）當單軸晶體光軸位於波導面內時，對于正單軸晶體，波導的主模是橫電波te _ 0模，任何頻率的光波均可激勵該模式；當光波波長滿足一定條件時，波導內傳輸單模，否則，將激勵起高階模式，高階模即匪te波，也匪tm波，而是兩者耦合而成的混合模。 -
The roots of radio - frequency identification technology stretch at least as far back as world war ii, when transponders helped distinguish between axis and allied aircraft
無線頻率識別技術的最早運用可以追溯到第二次世界大戰，那時無線電發射機應答器幫助人們分辨軸心國和同盟國的戰機。 -
In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project
在動態數值分析中，針對世紀塔變截面的塔身，曲線軸線的拱以及柔性拉索相互耦合時清況，建立兩種有限元計算模式，利用有限元軟體algorfeas得到動力數值分析的結果，如：自振頻率、振型、動位移、動應力等等，再和振動臺試驗研究成果作比較，得到一些重要的結論，從而為南京世紀塔工程的設計和施工提供強有力的依據，而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。 -
On any axis, frequency for 200 hz, max. causes error is 0. 05 % g of range
在任意軸上，頻率為200hz ，引起的最大誤差為量程的0 . 05 % g -
The horizontal axis of the robot is equipped with a dynamic, frequency controlled motor and all components of the control system are directly mounted on the robot structure
橫軸配備了變頻控制的動力馬達，所有控制系統部件都裝在機械手上。 -
The position errors are measured by two dimension single - frequency laser interferometer, the pitch and yaw errors are tested using phase shifting interferometer with a resolution of 0. 1nm, the linearity along motion axis is investigated by autocollimator with 0. 01 " uncertainty
利用單頻激光干涉儀測試其運動定位誤差特性，相位偏移干涉法測試運動轉角誤差，光電自準儀測試其運動偏擺誤差。 -
At present among commonly used diagnosis methods, it is practical to diagnose axial vibration fault with frequency analysis and axis locus analysis
在目前企業中較常用的振動分析診斷中，利用頻譜分析與軸心軌跡分析診斷軸系振動故障，具有實際意義。 -
The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis, and the controlled plant is composed of ip velocity loop and two - order model of linear motor. a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation, which makes the repeated computation on r simple. considering the two - loops control problem, the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system, and a pi controller, the external controller, is used to satisfy the position performance
本文的創新之處在於將傳統的ip速度控制器和直線電動機的二階模型作為一個廣義的被控對象，利用魯棒h _控制理論設計了一個h _狀態反饋控制器，以此解決高精度進給的控制問題，並在此基礎上研究了h _ 2 h _混合控制問題，結合h _代數riccati方程正定鎮定解存在的頻率判據，推出了一個控制器存在的約束條件，使以往須反復試探的，有了更進一步的約束范圍，簡化了計算。 -
3. a raytrace model of both co - axis and non - axis beam propagations for high - power solid - state laser systems has been set up and simulations on shots have been conducted to get the spot distribution at target point. according to the requirement of system design and theory of mathematic statistics, the dispersion circle and frequency distribution, which optimize the stability allocation of optical components, have been presented
3 、建立了共軸與非共軸相結合的光線追跡模型，通過對大型固體激光裝置打靶的模擬模擬，獲取光束在靶點處的彈著點分佈，依據總體設計要求，運用數理統計原理，採用彌散圓和頻率分佈方法對彈著點分佈進行分析，優化光學元件穩定性分配指標。 -
The spindle is supported by high - accuracy rolling bearing ; the frequency governor imported from abroad is used in the main drive system to realize stepless speed regulation and constant linear cutting functions ; the bed is supersonic frequeney hardened, plastic coated guide ways are used for the carriage ; and stepping motor of acservo motor are used x and z axis to realize feed movement via the ball screws
主軸採用高精度的滾動軸承支承；主傳動採用進口變頻調速器，實現無級調速功能及恆線速切削功能；床身採用超音頻淬硬處理，採用貼塑導軌； x軸和z軸均採用步進或伺服電機，通過滾珠絲杠，實現進給運動。 -
The meaning of cqc ( t ) algorithm is the difference in time domain between the peak value location in time axis of input earthquake and model response of structure, which is called delay time. through the delay time calculating of a series of oscillators with different damp ratio and natural vibration frequency, it is found that it will bring biggish error if the cqc algorithm applied on the structure which has long period, and the time dependent cqc ( t ) algorithm could solve the problem easily
Cqc （ t ）方法的意義在於輸入地震動峰值與結構模態響應峰值在時間軸上的時間差，我們稱之為延遲時間，通過計算具有不同周期和阻尼比結構的延遲時間，發現對于自振周期比較長的結構， cqc方法會帶來比較大的誤差，而基於時程的cqc （ t ）方法能夠解決這個問題。 -
A normal co - axis he - ne laser tube with bore length l = 190 mm was used. with pid and self - organised fuzzy control, the frequency error could be confined to a 10 ~ 9 level. in addition, preheating time and anti - interference were within requirements
選用腔長l = 190mm的普通同軸式he一e激光管，採用pid和自組織模糊控制模式可達到10一的穩頻精度效果，並滿足預熱時間和抗干擾要求。 -
The main and secondary axes are driven by ac frequency conversion motors, which can control the speed of each axis precisely
二、主軸及副軸均以ac變頻電機驅動，轉速可精確調節。 -
Keywords : micro - gyroscope, silicon single crystal, three - axis angular - rate sensing, natural frequency and mode shapes
關鍵詞：微型陀螺儀、矽單晶、三軸角速率感測、振動自然頻率與模態。 -
Analyzing real hrv, proving the every segment power ( high frequency > low frequency ) of projection in frequency axis is times with the every segment power by using fft, the lf / hf by using 2 method is primarily sameness. 3d figure is a trenchancy tool for doctor to look over the relation between time and frequency
對實際的心率變異信號進行了維重慶大學碩士學位論文格納分析，證實通過計算三維時頻分佈對頻率軸的投影得到的各頻段（高頻段、低頻段等）功率，與直接用fft所得各頻段功率，二者只相差一個比例系數，並且二者lf hf的值基本相同。 -
It is comprised of a sensor head ( a quadrangular pyramid tip, a base, four quartz crystal plates ) and a network analyzer and an apparatus to apply three - axis force. according to mechanics, four plates of the quadrangular pyramid tip correspondingly receive four one - dimension forces when applying a three - axis force to the sensor head. because quartz crystal has a force - frequency effect, namely, resonance frequency change of the quartz crystal is in direct proportion to one - dimension forces applying to it, four certain resonance frequency changes of the four quartz crystal plates are corresponding to a three - axis force
當傳感頭受三軸力作用時，根據力學的分析可以確定三軸力與四角錐體四個面上單向力之間的對應關系，用分別貼在四角錐體四個面上的四片壓電石英晶體作為壓敏元件，由於石英晶體的力頻效應（即石英晶體在受到應力作用時，它的諧振頻率與應力大小成正比） ，從而最終確定了四片石英晶體的諧振頻率改變量與傳感頭上所受三軸力大小和方向之間的對應關系。 -
Be aware as well that these transforms are centered about the zero-frequency optical axis of the system.
還要記住這些變換式是以系統的光軸（頻率為零）為中心的。 -
This direction finding algorithm may resolve uncorrelated monochromatic sources, but it assumes that all signal frequencies are distinct. it requires no a priori knowledge of the signals " frequencies, suffers no frequency - doa ambiguity, and pairs automatically the x - axis direction cosines with the y - axis direction cosines
該演算法用單矢量水聽器，在無需知道信號先驗信息的條件下，可以實現對多個不相關信號的方位角估計，並且不受頻率模糊度的影響，自動匹配x軸、 y軸的方向餘弦。 -
Abstract : in this paper we establish a structure analysis model and a structure optimization design model for the outer ring of three - axis simulating table. via quasi - newto nmethod, which is based on characteristic model, optimization design is accomplished, and the scheme thereof is concluded within constraints of first - order natural frequency and static deformation
文摘:建立了某三軸模擬轉臺的外框的結構分析模型和結構優化設計模型，利用基於性態模型的擬牛頓法對其進行了優化設計，得出了在一階固有頻率和靜態變形約束下的最優方案。
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