流量測量元件 的英文怎麼說
中文拼音 [liúliángcèliángyuánjiàn]
流量測量元件
英文
flow measuring element- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 件 : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
- 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
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Drift angle position closed loop control system is achieved with 80c31 as controller, step motor as transact organ and absoluteness coder as measure organ. a large number of dada are obtained in all kinds space circumstance experiments
設計和實現了以80c31作為偏流角控制器,以步進電機為執行元件,以絕對式編碼器作為偏流角測量元件的偏流角位置閉環控制系統。Pressure sensor and hygrothermograph sensor are adopted respectively to sense these change ; a plc and its analogue cell are adopted to collect and analysis the data ; a mcgs component software is used to process and store the data in real time
給出了以壓力、流量和溫濕度傳感器為測量元件、以plc為主控制器、 plc模擬單元為數據轉換單元的詳細硬體設計、程序設計和組態軟體mcgs在上位機的運用。After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control
在指向反射鏡的擺動控制方面,採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機,並採用感應同步器作為角度測量元件,運用軸角轉換器ad2s80a進行角度和速度的輸出,採用技術成熟的pid控制方案,進行速度和位置雙閉環控制,以實現指向反射鏡轉動速度的平穩性和位置的精確性。First the author introduces the design of the flame monitoring system based on pic16f877 mcu in details. the detector, ( ecadata company ’ s production ), si - photodiode, is used as the sensor. its photoelectric current output is proportional to input light ’ s energy
經方案比較,決定選用基於火焰的紅外光譜輻射特性的火焰檢測原理,研製開發火焰監測系統,檢測元件選擇ecadata公司生產的紅外雪崩型硅光電二極體,光電二極體在接受紅外輻射時,其產生光電流的大小與入射光能量成正比。It shows that the injection quantity and the difference of temperature distribute as a parabola which is at the same load, and the minimum of the parabola corresponds to the optimum quantity of injection ( g ). under the condition that the quantity of injected mass, the air speed and the heat quantity is respectively g, v and q, the research demonstrates that the pentium iv chip ' s temperature variation can be controlled under 40c and work normally when the wind speed overpass 1. 5m / s and the power dissipation of the chip is 60w. otherwise this paper calculates the flooding limit of thermosiphon with several different methods
對其充灌量、散熱量、電子元件( cpu模擬晶元)表面與環境溫度之差及通風、流速的影響進行了系統的測試,發現充液量與溫差的關系在負荷不變時呈拋物線分佈,其極小值點對應的充液量是最佳充液量g 。在充液量為g時,對風速v 、散熱量q進行的研究表明,當風速超過1 . 5m / s后,奔騰晶元在60w發熱條件下晶元溫度小於40 ,能滿足長期正常工作。Develops, manufactures and distributes level, pressure, flow and density field mounted sensors, with associated monitors and systems
-生產製造航空儀表及傳感器電子衡器汽車部件質量流量計壓力測試儀器彈性敏感元件等。3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant
對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等;改進了水冷壁布置使換熱效果更好,減少輻射換熱損失;改進對流段結構,更充分的利用爐膛出口煙氣余熱,提高熱效率;並且進行了煙氣阻力計算、熱效率計算和能量平衡測試,對改進后的稠油燃料和改進前進行了對比,燃燒狀況和熱效率有明顯改善。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。Fixed firefighting systems - components for sprinkler and water spray systems - part 5 : water flow detectors
固定式消防系統.灑水器和噴水系統元件.第5部分:水流量測定器Liquid flow measurement in open channels. rotating element current - meters
明渠中液體流量的測定.旋轉元件流速計It is important to keep the bridge voltage low in order to avoid a self-heating of the measuring element by the bridge current.
保持電橋低電壓很重要,以避免橋路電流測量元件自熱。According to more effect, when the hore component is placed in a gradient field, at the same time the direction of the current is perpendicular to the direction of the voltage, then between the two parallel side face come out the hore voltage. when hore component is set in this kind of uni - gradient magnetic field and the electric current is unchanged, the voltage output of hore component will be proportional to the position of the hore component in the magnetic field. so we can use the hore component to measure the movement of hore component against magnetic field
根據霍爾效應可知,置於磁場中的霍爾元件若電流方向與磁場方向垂直,則在霍爾元件垂直於磁場和電流方向的兩個側面將產生電勢,將霍爾元件置於強度隨空間位置線性變化的磁場中,且控制電流恆定,輸出就正比于霍爾元件處于磁場中的位置,因此可以用霍爾元件來測量磁場與霍爾元件間的相對位移量。By the way, a displaying system and a communicating system is added. this dissertation is divided into four chapters altogether : chapter one is the introduction, introducing the hore component and its important characteristic and putting forward the basic task ; chapter two introduce the principle of the auto - tracking system and respective parts of the auto - tracking system ; chapter three introduce the applications of auto - tracking system under static condition and dynamic condition and give out the experiment results ; chapter four introduced the displaying system, communicating system and the applicability of the auto - tracking system to other sensors
本文共分為五章:第一章緒論中,介紹了霍爾元件及其一些重要特性,並提出了測量系統的基本方案;第二章詳細介紹了測量系統各部分的構成及原理,特別是對直流通道、溫度補償模塊和音圈電機為核心的隨動機構的論述;第三章介紹了實際系統在靜態測量和動態測量兩種模式下的應用及實驗結果;第四章介紹了系統的顯示功能和遠程通信功能並討論了系統對其它傳感器的適用性。Overpressures up to 40 bar at 500 litres min can be detected with the membrane measuring element and output in easily readable form
膜片式測量元件可以測量500升分鐘流量下最高達40 bar的過壓力,並將測量結果以便於閱讀的表格形式輸出。A new residual current compensation method based on the magnitude of current of each phase that has the clear phase selection ability is presented in this paper. the residual current is compensated in an adaptive manner
本文中提出一種新的可變補償的方法,對單相距離測量元件提出了零序電流自適應補償方法,演算法本身帶有較強選相功能。The measuring element consists of the transmission coupling, measuring element insert, rotor, straightening vane, and calibration vane assembly
測量元件包括傳送連接器,測量元件插件,轉子,整流葉片,和刻度葉片組。Watts 994hmb fire hydrant backflow preventer meter construction consists of : meter housing, measuring element, permanently sealed register, and reduced pressure backflow preventer in unitized assembly
美國瓦茨994hmb消防栓防迴流閥儀表結構包括:儀表殼,測量元件,永久性密封記錄器,和在成套總成內的減壓防迴流閥。Fixed firefighting systems - components for sprinkler and water spray systems - water flow detectors
固定消防系統.噴水器和噴水系統用元部件.水流量測定器This is provided to protect the measuring element from over speeding when the meter discharges to atmosphere. also, prevents damage to the backflow preventer due to excessive flow
當儀表排放到大氣時,這種裝置保護測量元件不會受到過高流速的破壞。此外,也防止防迴流閥受到過大流量的破壞。Ohmmeters work by passing a small current through the component and measuring the voltage produced
電阻表的工作原理為,生產一個電流流過測量的元器件,在其上生產電壓,並測量其值。分享友人