針壓力 的英文怎麼說
中文拼音 [zhēnyālì]
針壓力
英文
needle force-
This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷,利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法,提出了在液壓系統中加一個定差減壓閥的新思路,較好地解決了液壓伺服系統存在的上述問題。The pressure proportional elastic deformation of this bourdon tube is transmitted through a low friction movement to the knife edge pointer
波登管的壓力比例塑性變形通過摩擦力很小的機械裝置傳遞給刃形指針。The pressure pro - portional elastic deformation of this bourdon tube is transmitted through a low friction movement to the knife edge pointer
波登管的壓力比例塑性變形通過摩擦力很小的機械裝置傳遞給刃形指針。The pressure proportional elastic deformation of this bourdon tube is transmitted through al low friction movement to the knife edge pointer
波登管的壓力比例塑性變形通過摩擦力很小的機械裝置傳遞給刃形指針。The main work and achierement are as following : ( 1 ) by using shock impedance matching technique and electric probe method, 5 shots of impact experiments were conducted to measure the hugoniot equation of state for enstatite ( mg0. 92, fe0. 08 ) sio3 with the average initial density 3. 05g / m3 from shock pressure 50 gpa to 115gpa, using two stage light gas gun
本文研究取得的認識主要有以下幾點: ( 1 )用阻抗匹配法和電探針技術在80 115gpa壓力范圍內對平均初始密度為3 . 05g / cm ~ 3的頑火輝石樣品進行了5發hugoniot狀態實驗測量。This paper research the mining press the meaning of the spirit system with the principle of basic theories and superior, application that press the windpipe net to compute the analysis method of the system theories, press the present condition of the spirit system to proceed to investigate the research to old factory tin mine of company of yunnan tin industry group, minimum tree principle within " diagram theories " of key problem, adoption that find out the esse, right pressed the windpipe net to proceeds the superior
本文闡述了研究礦山壓氣系統的意義和壓氣管網計算的基本理論及優化原理,並運用運籌學的分析方法,對雲南錫業集團公司老廠錫礦壓氣系統的現狀進行了詳細的調查研究。針對目前老廠錫礦壓氣系統存在的管網長、漏氣多、壓力損失大等主要問題,採用「圖論」中最小樹原理,對壓氣管網進行了優化研究。Our main products are micro barometer low pressure gauge low pressure capsule gauge vacuum pressure with low pressure gauge pressure gauge with electrical contact shock - proof electric contact gauge stainless steel pressure gauge dry and glycerin filled pressure gauge normal pressure gauge freon pressure gauge oxygen - acetylene pressure gauge stainless steel vacuum pressure gauges series diaphragm seal pressure gauge diaphragm pressure gauge with electrical contact pp diaphragm seal pressure gauge shock - proof pressure gauge with electrical contact diaphragm seal pressure gauge explosion - proof electric contact pressure gauge minitype pressure gauge accurate pressure gauge test pressure gauges as well as pressure gauge switch pressure separator tube pressure gauge radiator double - metal thermometer all the products can meet both national and international stands,
一般壓力表氣壓表抗震壓力表充油壓力表全不銹鋼壓力表膜盒微壓表電接點壓力表冷媒壓力表真空壓力表壓力真空表隔膜壓力表微型壓力表差壓表微差壓表絕壓表精密壓力表耐高溫壓力表蒸氣壓力表汽車燃氣壓力表醫用壓力表遠傳壓力表衛生型壓力表壓力表緩沖管壓力表冷凝散熱器壓力表翅片散熱器壓力表開關不銹鋼連接彎管不銹鋼連接軟管轉換接頭油壓連接頭壓力表針閥節流閥及過壓保護附件濾油網加油口油溫油麵計雙金屬溫度計等。Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high
通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析,得到:撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角,噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高,撞針型結構提高了霧化加濕效率,高壓小孔徑的特點為霧化加濕提供了較大的能量,而噴水初溫的升高會減小水的粘性力和表面張力,從而優化加濕效果。Integrated the work on theory and experiment, the paper provides technical performance material at large about the automating and humidifying character of the centrifugal nozzle with firing pin type, high pressure and little aperture to the manufacture and user. with the valuable reference during the selecting the equipment and ascertaining the parameters, the users could select and control the humid parameter
課題的理論與試驗兩方面工作相結合,為撞針型高壓小孔徑離心式噴嘴的霧化加濕性能提供了較為詳細的技術性能資料,為生產廠家和用戶在設備選型和參數選擇過程中,提供了有價值的參考,便於用戶正確而經濟地選擇、控制濕度參數,有效調節噴嘴孔徑、噴水初溫和噴水壓力的大小。Jerem ' s s curit pour travaux en hauteur. pr sentation du produit, documentation t l charger
青島凱能鍋爐設備有限公司是國內專業化生產針形管余熱鍋爐、針形管換熱器、鍋爐壓力容器的企業。Then, the change of the pressure of the concrete in the pipage is studied. lastly, the pressure losing and the error of the routine measure are discussed. chapter three discusses the fussy self - study issues based on the concrete technology the first section expounds the basic fuzzy self - study theory
首先介紹泵送混凝土的流動特徵,接著研究泵送混凝土在輸送管中泵送壓力的變化,並分析影響泵送壓力損失的因素,從而討論常規計量方法的缺陷第三章主要是針對前章理論模型應用模糊自學習技術。Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning
第五章首先介紹了變結構控制的原理和應用發展情況,然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案,實現緩沖過程的平穩無沖擊和無回彈要求,並在不同氣源壓力、不同負載質量下分析了控制性能的變化,實驗結果證明緩沖控制採用變結構控制是可行的,並具有很強的魯棒性。In these years, image measuring has been used in every walk of life gradually. this paper discusses the characteristic, the virtue and the application of digital image measuring. in this paper. after analyzing the practical situation and theory, it has confirmed the project that identify automatically the pointer and the reticle of the pressure gauge with technique of optic photographic system, image process and automatic identification
近年來,圖像測量逐漸應用到各行各業。本文討論了數字圖像測量的特點、優點及應用范圍,結合實際情況和理論分析,確定了利用光學攝像系統和圖像處理、識別技術,自動識別壓力表的指針和刻線的方案,解決了壓力表示值的自動檢定問題,研製了一套集計算機、圖像處理和識別、自動控制和光學等技術於一體的壓力表示值的自動檢定系統。The paper studies the degradation rule of physical mechanical property of vulcanizate during the period of heat ageing, which involves the relationship between the property, variable temperature and time. the analytic expressions for the frictional temperature rise of the interface were presented according to the theory of heat conduction of solid when a tire slides of rolls along the road. finally, the value of temperature and pressure is used to monitor the tire ' s status
本課題針對影響汽車輪胎橡膠機械性能的溫度老化模型進行了一定深度的理論研究,並進一步研究輪胎的在滑動、滾動時的溫度場的數學模型,在理論上論證了溫度、壓力是影響輪胎行使安全性能的重要因素,並以其作為最終的監測對象。For two up and down jets plunging into a cushion pool, two factors of up depth and down depth of water cushion are first introduced actually, then the methods calculating the reasonable depth of cushion pool and the reasonable distance between up jet and down jet are introduced
針對上、下雙股水舌入射水墊塘時水墊塘底板上的壓力變化規律,首次根據射流理論提出了上、下水墊深度的概念及其計算方法,並進而提出了計算水墊塘合理深度及水墊塘內水舌合理入水間距的方法。The penstock for jinhe hydropower station is less in china, as it has a obliquity of 50 on the bending and inclined straight section in space ; for which the manufacture and installation are smoothly completed under the construction condition in the tunnel and the environment of alpine region with available construction method in combination of limited construction method for the key technical problems of the manufacture and installation of the penstock, which provides a reference for the constructions under the similar circumstance
摘要金河水電站壓力鋼管的空間轉彎和斜直段的50傾角在國內是比較少見的,針對鋼管製造、安裝的技術難點,在高寒和復雜的洞內施工環境中,結合有限的施工手段,採取有效可行的施工方法,順利完成了製造、安裝任務,對類似環境下的施工提供了一定的借鑒。Aim at to turn a dense oil pump in the movement the metal bellow expansion joint and buffer tank was installed in the dense oil pump export because of the violent vibration and noise cause by the discharge and the pressure pulsation, the result show lowered the vibration and noise availably was obvious
摘要針對轉子式稠油泵在運行中因流量和壓力脈動所引起的劇烈震動和噪聲,在稠油泵出口安裝金屬伸縮節和緩沖罐,有效地降低了震動和噪聲。One robust compensation adjustment is presented, based on which and h ? mixed sensitivity control method, then a new h - control method is brought forward and is applied in the pressure - adjusting loop of this system. h mixed sensitivity control method is applied in the position - adjusting loop. system simulation and experiments prove that using these two control methods, performance of close - loop system is very good and excellent robustness is obtained too
在此基礎上,針對h _控制混合靈敏度優化策略的特點,提出了一種新的h _控制方法,並將其應用到卷取機步進控制系統的壓力控制環節,同時首次將h _控制混合靈敏度優化策略應用於卷取機步進控制系統的位置控制環節,系統模擬和物理系統模擬實驗證實這兩種控制方法不僅保證了閉環系統特性,還具有良好的魯棒性。Through consulting lots of relevant references, present research of direct drive volume control hydraulic servo system is summarized in this paper, the principle and character of this system are expatiated, the principle of vector control is introduced. at the same time, the mathematical model of ac asynchronous motor is set up based on the vector control theory. the mathematical models of both the pump controlled motor and pump controlled cylinder are set up and simulated in this paper
在查閱大量國內外相關文獻的基礎上,本文綜述了國內外對該系統研究概況,闡述了該類系統原理和特點;闡述了矢量控制的基本原理,並基於這一原理建立交流異步電動機的數學模型;分別建立了泵控馬達系統和泵控缸系統的數學模型,並給出了模擬分析;設計了用於泵控馬達系統的集成閥塊,加工了密閉壓力油罐;針對現有直驅式電液伺服裝置所存在的問題,本文主要針對系統工作過程中所產生的噪音與爬行問題進行了一定的研究。Needleless dermopressurs injector
皮下無針壓力注射器分享友人