electric hydraulic converter 中文意思是什麼
electric hydraulic converter
解釋
電場強度傳感器-
There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。 -
We give three installing schemes in the measuring hydraulic cylinder in the fourth chart and analyse thire merits and shortcomings. we discuss the possibility of measuring grinding wheel diameter by ultrasonic wave we give the full electric circuit schemes, including emitting and receiving circuit, measuring temperature circuit, displaying circuit, regulated power supply, a / d converter circuit and so on
給出一種新的計時方法。同時我們還討論了利用超聲測量鋼坯磨床中砂輪直徑的可能性。在本文中，還給出了完整的電路設計方案，包括:發射接收電路、溫度測量電路、顯示電路、穩壓電源電路、 a / d轉換電路等。 -
As the electric - mechanism converter of the servo valve, torque motor is the key component of the electro - hydraulic servo valve. its output torque characteristic has a significant influence on the performance of servo valve
力矩馬達作為液壓伺服閥的電? ?機械轉換裝置，是電液伺服閥的關鍵元件之一，其輸出力矩特性對伺服閥性能具有較大的影響。 -
According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly
本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。 -
Industrial controlling equipment and its system, sensor, converter, factory / process automation technology and equipments, distribution control system ( dcs ) / analytical controlling system / intelligent controlling system / process automation controlling system / automatic controlling system / test and control system / supervision system / numerical controlling system / digital display equipment / frequency speed control, servo - control, computer aided design and control, various specialized systems, power transmission techniques, programmable controller / hydraulic pneumatic element, automatic storage retrieval system, logistics, other electronic devices, communication, electric controlled equipments, various fitting, whole - set system and installation
工業控制機及其系統、傳感器、變頻器（培訓） 、工廠/過程自動化技術與設備、集散控制系統/分析控制系統/智能控制系統/過程自動化控制系統/自控系統/測控系統/監控系統/數控系統/數顯設備/變頻調速與伺服控制、計算機輔助設計與控制及各類專用系統、動力傳動技術、可編程序控制器/液壓與氣動元件、自動化立體倉庫、物流、其它有關電子、通訊、電控設備、各類配件及成套系統和裝置。
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