無定位計器 的英文怎麼說

中文拼音 [wúdìngwèijìqì]
無定位計器 英文
astatic measuring instrument
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  1. It still works well when the mulched straw is more then lot / ha. ( 3 ) an experiment was conducted on a self - made testing equipment to investigate the chopping properties of wheat straw under different conditions. on the basis of testing results, main cutting curves of wheat straw were given under different cutting speeds of rotary blade, with different straw lengths, different moisture contents, different cutting position, different thick of knife edge, with and without shear bar

    （ 3 ）為了研究帶狀粉碎防堵裝置對麥秸的切碎效果，在特製的實驗臺上，應用了虛擬儀器測試技術對不同處理的麥稈進行了切斷試驗，得到了在不同切割速度下對不同長度、不同含水率的麥稈、麥稈的不同切割部位以及有定刀和無定刀情況下的切斷率，為麥秸粉碎裝置的設計提供了依據。
  2. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  3. Here a low cost optimal position system with speed - loop open and position - loop closed based on fuzzy control is presented, it employs fuzzy controller to verdict rotor velocity approximately and a fuzzy switching curve is substituted for real one to achieve bang - bang switch, no limit - loop or oscillation occurs. at the end of this chapter, a dc break curve is discussed

    為了實現經濟實用的點對點快速定位系統，實際系統採用速度開環、位置閉環結構，速度量從模糊控制器得到，既不實測也不軟體估計，用模糊開關線代替真實開關線進行控制量狀態切換，無極限環或振蕩現象，而成本則大大降低。
  4. Today, with a deep understanding and knowledge about the field of medical display and our reputation in crt products, we have researched, designed, and developed 1mp, 2mp and 3mp lcd display system. our products strictly comply with dicom standards. they provide high quality image display for various medical equipments

    我們憑借在醫療crt顯示產品中已建立相當知名的地位，以及對醫療顯示範疇的深度理解，自主開發設計製造了1mp 2mp 3mp像素單色彩色液晶顯示器，他們作為torch - bigtide專為醫療顯示用途而開發的高精度專業液晶顯示設備，具有一致而穩定的影像質素，從而確保了精確無誤的診斷結果，完全能夠滿足不同醫療機構對不同顯示器類別及顯示能力的需要。
  5. Lonm tuning range is achieved in the experiments. 2. the influence of the positioning errors on tuning range in external - cavity diode laser system is analyzed in detail for the first time as my knowledge

    （ 2 ）首次系統分析了外腔半導體激光器無跳模調諧結構的定位誤差對無跳模調諧范圍的影響，並據此設計了一套1
  6. At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss

    然後對現有的演算法進行了詳細的分析、比較，篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案，確定了準同步采樣的方案，並通過對準同步采樣誤差的分析，提出了一種從45開始采樣，從而提高精度的采樣數據處理辦法，同時，對于電流互感器相位漂移提出了一種補償辦法，接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析，其中對于無功補償採用y混合接線，並利用交流接觸器和固態開關共同投切電容，不但提高了經濟運行水平、改善了電能質量，而且有效的避免了頻繁更換開關，減少了經濟損失；最後，設計了裝置的硬體電路並繪制了相應的軟體流程圖。
  7. The subjects of this paper are the realization of speed - sensorless fast point - to - point position orientation system and to analyses the properties of state estimator based on extended kalman filter ( ekf ) for field - oriented controller ( foc ) system of induction motor

    本論文的研究目標一是用bang - bang控制思想實現無速度傳感器點對點快速定位系統，二是分析基於擴展的卡爾曼濾波器（ ekf ）異步電機閉環矢量控制系統狀態估計器的性能。
  8. Serial - parallel combined two - transistor forward converter is presented for high input voltage and high power application, and the operation principle of the topology is analyzed in this paper. all switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching. the difference of input capacitances, conducting voltage drop of switches, duty cycle and windings of the transformer of the combined converter influences the voltage balance of the input capacitors

    本文介紹了雙管正激變換器的兩種穩定工作狀態，詳細分析了帶lcd無損箝位網路的並?並組合式雙管正激變換器的工作原理，該組合式變換器中的開關管實現了零電壓關斷，並介紹了該電路拓撲的特點和lcd網路參數設計，採用pspice軟體進行了模擬和分析，最後，研製出一臺2 . 3kw樣機。
  9. Three - phase full bridge controlled rectifier, filter circuit and the common loads " mathematics models are built and analyzed. according to the rate of the transition process, the controlled rectification power supply can be classified into fast response and slow response. based on identification of the transition processes using the slope method, the different fuzzy control strategy is adopted. the control method can meet the requirements of real time control and non - error regulation. the simulation results verify its practibility. after that. the design scheme based on dsp is introduced including the design of hardware and software flow chart. emc is an important aspect which can not neglected, so the designs of emc are summarized including hardware and software

    根據過渡過程的快慢將可控整流電源系統分為快響應過程和慢響應過程，本文在利用響應曲線斜率法辨以過渡過程的基礎上，分別針對快響應過程和慢響應過程採取了相應的模糊控制策略，以滿足快響應過程要求實時控制，快速跟蹤誤差變化，慢響應過程要求精確定位，無差調節的要求，模擬結果驗證了該方法的有效性，進而分析了用dsp實現該調節器的硬體電路和軟體流程的設計思路。
  10. Lengthened the life of wireless sensor network has become critical to widely apply it. the network considered in this paper consists of tiny energy - constrained sensors massively deployed, along with one or more sink nodes providing interface to the outside world. our contribution is to propose a scalable energy - efficient routing protocol in their working process for nodes that are initially anonymous, unaware of their location based on researching predecessor ’ s routing protocols and profiting from their designed thought

    本文針對由大量的能量有限的傳感器組成的通過一個或多個sink節點作為介面與外界通訊的無線傳感器網路進行研究，分析了現有的無線傳感器網路網路層路由協議，借鑒現有網路層路由協議的設計思想，在無線傳感器網路網路層路由方面提出了一種改進協議，此協議能使初始不確定的，不知具體位置的傳感器節點在工作過程中能量相對均勻消耗。
  11. The thesis analyzes and constructs the terminal system by separating the monitor task into several modules. the terminal system consists of controller, light check module, position module, radio communication module and power management module, which combine radio communication, satellite position, computer control, switch power and some other technologies

    本課題把監控要求與任務分成模塊進行分析與構建，系統分為控制器、燈檢測、定位裝置、通信模塊、電源轉換與管理等五大模塊，融合了無線通信、衛星定位、計算機控制技術、開關電源等技術。
  12. After that, based on the above discussion and technology comparison, an improved nda ( non - data - aided ) carrier offset estimation algorithm is proposed which has the advantages of improved carrier offset estimation performance and can be realized by high - speed dsp chips

    本文論述的方法無需以數據為輔助進行頻率和相位估計，特別適合於突發性通信。同時系統性能穩定，其低復雜度的設計易於高速dsp器件實現。
  13. The wuxi tai lake petrifies the equipment factory locates shore the scenery beautiful tai lake, in recent years along with society ' s reform and open policy, the company rapidly developed into one by the national ministry of labor, the mechanical ministry of industry, ministry of chemical industry, the province labor bureau fixed point design, makes one, two kind of pressure vessels, the chemical equipment specialized factory

    無錫太湖石化裝備廠位於風景秀麗的太湖之濱，近年來隨著社會的改革開放，公司迅速發展成為一個由國家勞動部、機械工業部、化工部、省勞動局定點設計、製造一、二類壓力容器、化工設備的專業廠家
  14. Then, the designed controller was adjusted grounding on the working above. the results of the experiment show that the brushless dc motor servo system controlled by our controller runs well and has the advantages of no overshoot, better real - time quality, good responding and location precision

    調試結果表明所設計的電路具有工作穩定，抗干擾能力強等特點，經與驅動器和機械繫統聯調表明，使用本文所研製的控制器進行控制的無刷直流伺服電機系統運行性能良好，具有無超調，實時性、響應性好，定位精確等特點，滿足系統的設計要求。
  15. Case 1 : when there is no relative measurement, each satellite uses its own on - board attitude sensors to determine its attitude, and exchange the information through the communication link between formation satellites, and then the relative attitude is determined through simple mathematical operation. case 2 : based on the range measurements of gps like sensors, using two - point measurement of the relative orbit state to establish relative orbit and attitude kinematics and measuring equations. and state estimation is achieved through the extended kalman filter technology and unscented kalman filter technology, respectively

    方案一，在星間無相對測量時，由衛星自身攜帶的姿態敏感器實現單星高精度姿態確定，利用星間通信鏈路進行信息交互，通過簡單的數學計算獲得星間相對姿態;方案二，利用類gps相對測量，建立了編隊衛星相對軌道運動和相對姿態運動模型及相對距離測量方程，推導了兩點相對軌道運動模型，設計了擴展卡爾曼濾波器及uscented卡爾曼濾波器，對相對位置、速度和姿態進行估計。
  16. The sensor - less technology is also discussed in this paper. the rotor position is open - loop controlled in the dtc system

    利用定子磁鏈來估計電機的轉子速度和位置，實現了永磁同步電機無傳感器運行。
  17. But its performance is as same as common pll at a 5v voltage. so the pll performance is better than other plls at a 5v voltage, especially in power consumption and frequency. finally, the improved pll circuit used in the frequency synthesizer is composed of the improved vco, phase / frequency detector and charge pump. hspice simulation results show that the pll performance is better than other plls implemented by other vco in the same cmos technology

    綜合以上的研究與設計，本文用所改進的壓控振蕩器、無死區鑒相器及電荷泵電路組成了用於頻率合成的鎖相環電路，並對此電路進行整體設計及模擬，結果表明其在鎖定時間、頻率范圍、輸出相位抖動及功耗方面具有較好的性能，且對提高鎖相環頻率合成器的整體性能有一定的作用。
  18. The rotor velocity and position can be taken as two states variable of the system by using the ekf on the basis of the theory of the bldcm. based on the measured stator currents and stator voltages, we can estimate the rotor velocity and position. it is very useful for us to study the application of the velocity and position sensorless operation of brushless dc motor drives

    在直流無刷電機的原理基礎上，利用擴展卡爾曼濾波器將轉子轉速和位置看成系統的兩個狀態變量，根據定子側可測的電流、電壓值，逐步估計出轉子轉速和位置，為無速度和位置傳感器無刷直流電機控制系統打下基礎。
  19. The test results indicate the sensor networks object tracking system is sensitive to the cost of sensors and synchronization of time windows, furthermore, it validates that embed system level design methodology based on ptolemy can direct wireless sensor networks system design correctly and feasibly

    測試結果表明:無線傳感器網路目標定位系統對于無線傳感器節點的功耗及信息時間同步窗口具有敏感性，符合無線傳感器網路目標定位系統應用特性，驗證ptolemy嵌入式系統級設計方法學對于指導無線傳感器網路系統設計的正確性和可行性。
  20. After researched fuzzy self - tuning pid parameters controller, a simulation experiment is shown in this paper, which demonstrated this controller is feasible. at last, a practical experiment is made with the efpt process - control equipment, the result of the experiment manifests : fuzzy self - tuning pid parameters controller integrate the advantage of pid controller and the fuzzy controller, it has the following character : small overshoot ; short transient time ; excellent control accuracy and no stabilizing error

    本文在設計的pid參數模糊自整定控制器的基礎上進行了模擬實驗，論證了這種控制器的可行性，最後在efpt過程實驗裝置上進行了模擬實驗，實驗結果表明pid參數模糊自整定控制器集合了pid控制器和智能權模糊控制器所具有的優點，能很好地控制鍋爐液位的穩定，具有超調量小，過渡時間短，控制精度高，無穩態偏差的特點。
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