距角 的英文怎麼說
中文拼音 [jùjiǎo]
距角
英文
angular elongation-
The characteristics of wind turbine generators as well as features of the fixed pitch wind turbine generator and the variable pitch wind turbine generator are presented, emphasizing on the variable speed constant frequency ( vscf ) generating system based on doubly - fed generators and on the control system for pitch angles
在簡述風力機特性的基礎上,介紹了定槳距和變槳距發電機組的特點,重點分析了基於雙饋發電機的變速恆頻發電系統及槳葉節距角控制系統。He finds the pitch range after calculated the three important parameters through the bladed for windows software, then presents an optimized control strategy that regulate the pitch angle in terms of the wind speed. it must control the output power because the variational output power brings the variational loads. he confirms and optimizes the control strategy that the output power is the control target, the output power is divided into three parts
將功率作為系統控制的目標,將功率分成三段進行控制,在低風速區,載荷是有限的,以功率最大化作為控制目標;在額定風速附近,由於處在升力曲線斜率的變化點,功率變化較大,應盡快調整槳距角進入失速區工作,減少載荷的波動,該額定風速區的上下工作點要通過現場試驗的手段來確定;在額定風速以上,使功率維持在額定輸出,減少功率波動,並通過bladed軟體的模擬計算對控制策略進行了驗證。Finally, the experiments on the rotor bvi noise are conducted both in an aeroacoustic laboratory and at outdoors, and the noise characteristics at different locations are measured on different blade - tip mach numbers, collective pitch angles and rotor configurations. based on the experimental results, some new conclusions are presented
本文第七章分別在「消聲室」和外場進行了模型旋翼的槳-渦干擾噪聲實驗,對不同馬赫數、不同槳距角以及不同旋翼布置情況下的不同測點進行了噪聲測量,得出了一些新的結論。The angular distance between the sun and a planet or the moon. it is also the difference in ecliptic longitude between the sun and other celestial objects. when an inferior planet follows the sun in its daily motion, appearing east of the sun in the evening, it is in eastern elongation
距角是太陽和太陽系內天體的角距,亦即是太陽和它們相差的黃經,以在日落後見于西方的內行星來說,這時內行星在處于太陽的東面,若這時的角距是在這段時間內最大的,便是Belt drives. v - ribbed belts. determination of measurement of pitch, angle and cord position
皮帶傳動裝置. v形加筋皮帶.輥距角度和繩索位置的測定Trapezoid very similar design suitable for a multipolar structure, not only reduced the permanent magnetism suggests the step away from the electrical kok, and high utilization of materials ; 3
2 .梯形爪極設計適合於多極結構,不僅減小了永磁步進電機的步距角,而且材料利用率高Based on the model of a three - phase hybrid stepping motor, the torque expression is deduced. the effect of subdivided driving on operating performance is analysed. it is illustrated that sine wave subdivided driving can make stepping angle and torque equal
本文以三相混合式步進電動機數學模型為基礎,推導出其轉矩解析式,分析了細分驅動對于改善步進電動機運行性能的作用,論述了正弦波細分驅動可以實現等步距角、等力矩均勻細分驅動的原理。The autoaligment instrument and accuracy turntable with digital display are used to detect the step angle after 32 subdivision, and the experiment results are given, the mean - square error of step angle after 32 subdivision is less than 3. 7 %
為了檢測32細分后的步距角,採用了自準直儀加精密數顯轉臺的光學測量方法,並給出了實驗結果, 32細分步距角的均方誤差不大於3 . 7 。For compensating the nonlinear error between winding current and the result magnetic field of stepper motor, the method of minimum square is adopted to fit and correct the error curve of subdivision step angle, and the subdivision precision is improved
為了補償步進電機相繞組電流與其產生磁場之間非線性引起的誤差,採用了最小二乘法對細分步距角誤差曲線進行了擬合與修正,提高了細分精度。This paper proposes a new method to obtain any wanted stepping angle with adjustable and even subdivision. with the method, the stepping angle is n ' t restricted with different phase number and tooth number any longer. so the product arrangement of stepping motors and drives can be simplified
提出了通過任意均勻細分來實現任意步距角的新方法,從而打破步進電動機相數和齒數對步距角的限制,簡化步進電動機及驅動器的生產格局,充分發揮機電一體化的系統效果。The angular distance between two celestial bodies as seen from earth
距角從地球上看的兩個天體之間的角距離When it precedes the sun, appearing west of the sun in the morning, it is in western elongation
。反之,在日出前見到的內行星正位於太陽的西面,若這時的距角是這段時間最大的,便稱為The driving system is controlled with microprocessor. it is easy to realize sin even subdivided driving and to obtain any wanted stepping by programming
驅動系統採用微機控制,靈活方便的用軟體實現正弦波均勻細分和任意步距角。The method which good merits of high - fitting - accuracy and simplicity, can be used to subdivide the equal - stride - angle and to improve torque - frequency characteristics at low frequency
該演算法簡單,擬合準確度高,可實現步距角的等步距細分,能有效地改善低頻起動矩頻特性。Popular point of view : when receiving step drive to a pulse signal, it driven by a step in the direction of the electrical equipment of a fixed point that is, step away from kok
通俗一點講:當步進驅動器接收到一個脈沖信號,它就驅動步進電機按設定的方向轉動一個固定的角度即步距角。So, a new criterion about the area calculation of the house appears. according to that, the area of the house equal to the sum of the practical area and the area of the wall section. the latter can be calculated on the criterion easily
測量儀的測量房屋套內面積的設想是通過步進電機驅動激光測距傳感器旋轉每一步距角,對距離數據進行每步採集保存,轉滿一周后對相鄰距離值構成的三角形面積進行計算求和而得到面積。The flexble step angle two - phase hybrid stepping motor driver is a patented product applied by authors in 1998. the paper reveals the detailed methods to realize this patented driver, also the feature and the performance indexes of the first generation driver are also presented
任意步距角的二相混合式步進電動機的驅動器是作者1998年申請的一項發明專利,文中介紹實現該專利的具體方法,以及第一代產品所達到的指標和特點。Pitch angle indicator
螺距角指示器A variable vector propeller, called the " varivec propeller ", is under development as a new propulsion system for the undersea robot. the varivec propeller is a kind of specific propeller that is capable of continuously generating any degree of thrust in any three dimensional direction by varying blades " pitches cyclically in the process of rotation and responds easily to the slightest change in the robot
全方向推進器是一種在運動過程中螺距角可以變化的螺旋槳,該推進器是一種全新的設計,它最大特點是通過葉片螺距角在槳葉旋轉的過程中周期性的改變,產生前後、上下、左右六個方向的推力,並可以容易的對海洋機器人的微小運動作出反應。This instrument hopes to control the step - motor regularly, and collects the datum of the distance between the laser sensor and the wall simultaneously, then calculates area according to the theory of triangle, finally sums up all the area and makes the output
本系統前向通道信號由激光傳感器提供,後向通道信號發給步進電機、傳感器,由於是旋轉式測量,必須控制激光發射信號的通斷和步進電機的步距角,否則測出的值是無法計算的。分享友人