static pressure difference 中文意思是什麼

static pressure difference 解釋
靜壓差
  • static : adj 1 靜止的，靜態的，靜力的。2 【物理學】天電的，靜電的。3 【無線電】靜態特性。4 固定的，不活潑...
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  1. When the design pressure of the reactor / regenerator is less than or equal to the design pressure of the main fractionator, or there is some absolute mechanical limit to the regenerator pressure ( plus the static head difference between the regenerator and reactor ) that is less than the main fractionator design pressure, the units do not need large relief valves on the main fractionator

    當所設計反應器或交流熱換器的壓力小於或等於主分餾器，又或者有些機械上無可避免的限制（還有就是兩靜電頭的不同）小於交流熱換器的壓力，其時整個部件就不需要大的調劑電子管了。
  2. Test methods for natural facing stones part 8 : test method for structural performance of dimension stone cladding systems by uniform static pressure difference

    天然飾面石材試驗方法第8部分:用均勻靜態壓差檢測石材掛裝系統結構強度試驗方法
  3. Although grouting - lift is a complicated dynamic process, according to the difference of action between the slurry and soil, this process is provided into several static stages in the paper. in every stage, the author expounds the working mechanism and builds the model, to study earth pressure distribution and lift - force magnitude when being grouted

    結合每個階段的特點，進行注漿機理闡述，建立注漿模型，探討了注漿過程中土層中壓力分佈規律和頂升力大小的計算方法，分析了土體抬升的破壞模式以及注漿的加固效果、頂升效果和注漿量之間的關系。
  4. Standard test method for structural performance of sheet metal roof and siding systems by uniform static air pressure difference

    用均勻靜態空氣壓差法測定薄金屬板屋頂和板壁系統結構性能的標準試驗方法
  5. It has a long history using a throttle device to measure the flow volume of fluid in pipe the method has formed normalization at home and abroad the principle is to make the flow bunch form the particial shrink at the place where the throttle part is located so as to produce a static pressure difference then measure and calculate the flow volume at the moment when the fluid is flowing through the throttle device by the static pressure measured this method is based on the law of conservation of energy and the equation of flow continuity

    用節流裝置測量管道中流體流量已歷史悠久，在國內、國際上都已標準化，其原理是使流束在節流件處形成局部收縮，產生靜壓力差，通過測量靜壓力差來衡量流體流過節流裝置時的流量大小，這種測量方法是以能量守恆定律和流動連續性方程為基礎的。
  6. Based on mechanics of fracture, and regarding thermal stress caused by temperature difference and static hydraulic pressure caused by fracture water as the main factors, the forecast of collapse period of dangerous rock is researched through different combination forms of fracture types, then a way to calculate collapse period of dangerous rock is provided

    摘要以斷裂力學為基礎，以溫度差引起的熱應力及裂隙水引起的靜水壓力為主要影響因素，通過不同的斷裂類型組合形式研究了危巖垮塌的周期，提供了一種計算危巖垮塌周期的方法。
  7. Static pressure is the designed pressure difference within the pipeline between two testing points. it is a necessary date when selecting different types of pressure gauges

    靜壓是差壓表兩個檢測點所在管道內的設計壓力。它是差壓壓力表選型時必需的數據。
  8. Pitot tube allows an indirect measurement of speed by determining the dynamic pressure from the difference between the total and static pressure

    空速管提供了一種間接測量速度的方法，它是通過測定全壓和靜態壓強差值的動態變化來測量速度的。
  9. Also, the difference in pressure between any two points in a bed is roughly approximated by the static head of bed between these points.

    還有，床層中任意兩點間的壓差大致等於這兩點間床層靜壓頭。
  10. 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。
  11. Standard method for testing sectional garage doors : determination of structural performance under uniform static air pressure difference

    住宅車庫門的標準試驗方法:用均勻靜態空氣壓差法測定結構性能
  12. Standard test method for structural performance of exterior dimension stone cladding systems by uniform static air pressure difference

    用均勻靜態空氣壓差法測定規格石料的房屋骨袈外墻體系結構性能的標準試驗方法
  13. Standard test method for water penetration of exterior metal roof panel systems by uniform static air pressure difference

    採用均勻靜態空氣壓差分析外部金屬屋面板系統防水漏性能的標準試驗方法
  14. Test method for water penetration of flat plate solar collectors by uniform static air pressure difference

    均勻的靜氣壓差下平板太陽能收集器的透水性的試驗方法
  15. Standard test method for water penetration of exterior windows, skylights, doors, and curtain walls by cyclic static air pressure difference

    用循環靜態氣壓差法測定外窗天窗護墻及門滲水度的標準測試方法
  16. Standard test method for water penetration of exterior windows, skylights, doors, and curtain walls by uniform static air pressure difference

    用統一的靜態壓差法測定外窗天窗護墻和門滲水度的標準測試方法
  17. Standard test method for structural performance of exterior windows, doors, skylights and curtain walls by uniform static air pressure difference

    用統一靜態氣壓差法測定外窗門天窗和幕墻結構性能的標準試驗方法
  18. Standard test method for field determination of water penetration of installed exterior windows, skylights, doors, and curtain walls by uniform or cyclic static air pressure difference

    用統一的或循環的靜態氣壓差法現場測定已安裝的外窗天窗護墻及門滲水度的標準測試方法
  19. Test method for structural performance of dimension stone cladding systems by uniform static pressure difference

    用均勻靜態壓差檢測石材掛裝系統結構強度試驗方法
  20. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
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