等電阻線 的英文怎麼說
中文拼音 [děngdiànzǔxiàn]
等電阻線
英文
resistivity contour- 等 : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
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For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。The resistivity contours appear much less diagnostic of anomalous bodies below the surface.
地面下方的異常體,在視電阻率等值線上並無明顯的反映。Relation between the equivalent resistance and frequence in transmission line
載流導線等效電阻與頻率關系研究The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一,對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手,聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷,提出了熱風循環乾燥的概念,同時,選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡,運用數字pid控制技術,構成了一個較有特色的計算機控制系統。此外,該文還從保證乾燥品質量的角度,採用智能化交流模塊和自製采樣調壓電路的方法,提出了在線檢測產修品的絕緣電阻的方法和手段,以確保企業產品質量不斷提高。The 1mhz fixed frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low emi and low input ripple. an external resistor sets the full - scale led current, while two digital inputs control on / off and select amongst three levels of brightness. the circuit operates in 1x mode until just above dropout
工作在1mhz固定頻率,採用線性調制模式使輸入紋波大大減小;利用一個外部電阻可以設置滿量程led電流;外接兩個數字信號控制晶元開關並選擇led三級亮度中的一級;具有過溫、過壓/欠壓等保護功能,工作溫度范圍為- 40 + 85 。Energy consume, electric strength, insulation resistance, ground conductivity, leakage current, microwave leakage, power input, normal temperature, humidity treatment, glow wire, horizontal flame, vertical flame, tracking, ball pressure, rainproof, water splash, dustproof, salt fog, endurance, motor load test, cord flexing, cord pulling, pull & torque test, lamp replacement, construction check etc
能耗、電氣強度、絕緣電阻、接地連續性、泄漏電流、微波泄漏、功率、溫升、濕熱試驗、灼熱絲、水平燃燒、垂直燃燒、漏電起痕、球壓試驗、防雨淋、防濺水、粉塵、鹽霧、耐久性(壽命)試驗、電機負載試驗、電源線彎折、電源線提拉、拉扭力測試、燈頭互換性、安全結構檢查等。For the ceramic materials, the effects of additives such as pbo, b2o3, co2o3, mno2, cr2o3, sb2o3 on the electrical properties of bismuth - free zno - glass varistor were studied. the glass phase formed mainly by pbo and b2o3 during sintering process could decrease the sintering temperature, improve grain uniform growth and inhibit grain second growth. nonlinear property could be improved by properly adding co2o3, mno2, and cr2o3
對瓷料而言,系統研究了非bi系zno -玻璃料配方體系中pbo 、 b2o3 、 co2o3 、 mno2 、 cr2o3 、 sb2o3等添加劑對壓敏電阻電性能的影響規律,其中, pbo 、 b2o3在燒結過程中形成的玻璃相,可降低燒結溫度,促進晶粒均勻生長,抑制晶粒二次長大, co2o3 、 mno2 、 cr2o3做為非線性添加劑,適量添加可提高樣品的非線性, sb2o3做為改性添加劑,在燒結過程形成的尖晶石相可細化晶粒,抑制晶粒二次生長,改善樣品的綜合電性能。The probe ' s linearity, temperature and dynamic characteristics are analyzed base on principal theory of eddy - current displacement sensor, such as the influence of the coil q value to the linearity characteristic, influence of the diameter of coil to the linearity characteristic, influence of coil resistance to the temperature characteristic, influence of the measuring coil to the syntony loop
在介紹渦流位移傳感器的基本理論的基礎上,分析了傳感器探頭線性特性、溫度特性、動態特性的影響因素。從探頭線圈q值對線性特性的影響;探頭直徑對線性的影響;探頭線圈電阻對溫度特性的影響;激勵信號溫度特性的影響:檢測線圈?振迴路動態響應特性等方面分析並提出製作高質量傳感器探頭的改進措施。We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder, select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0. 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware, for example temperature controller & transporter, signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data. in order to obtain the reasonable operation conditions and operation curve, we have also done many theory analysis and experiment discussions
通過理論和試驗探討,選用鎳鉻合金電阻絲作為加熱元件,配以陶瓷質埋入式爐膛;選用陶瓷質小尺寸扁平?圓盤均熱塊體型樣品支持器;選用0 . 5mm絲徑鎳鉻?鎳硅熱電偶( k )作為測溫元件;熱電偶對稱安置在樣品支持器容器的中部;選用硅酸鋁耐火纖維作保溫材料;合理選用和設計了溫度控制器、溫度變送器、信號放大電路等硬體;採用升溫曲線來控制爐膛供熱過程;採用最小二乘法非線性回歸與分段函數相結合的曲線模擬方法,進行圖形處理。The product of electric furnace fittings including : micro - computer program temperature control instrument 、 refractory brick ( ultra - light weight energy saving brick ) 、 resistance wire 、 electroheat belts 、 electrical heat tube 、 silicon carbide rod 、 furnace bottom plate 、 muffle tank 、 vacuum sealed fan 、 wind wheel 、 axis 、 substructure 、 bin seat 、 flat shape plate 、 box 、 panel 、 weatherstrip plate 、 return air plate 、 bin 、 connection box 、 educe rod 、 thermocouple 、 thyristor 、 porcelain pipe 、 crucible 、 furnace chamber 、 furnace frame 、 charging bin 、 substructure 、 pit furnace cover lifter framework ( sole design ) and otherwise
電爐配件產品包括:微電腦程序控溫儀、耐火磚(超輕質節能磚) 、電阻絲、電阻帶、電熱管、硅碳棒、爐底板、馬弗罐、真空密封風機、風葉、軸、底座、料筐座、扁形板、箱體、面板、擋風板、回風板、料筐、爐柵、接線盒、引出棒、熱電偶、可控硅、瓷管、坩堝、爐膛、爐門、爐框、裝料筐、底座、井式爐蓋升降機構(獨家設計)等。" electronic 1c chip drawing system " provides many functions such as " modify the position of the component ' s diagram " " modify the color of the component ' s diagram " " magnify and minify the component ' s diagram without distortion " " change the type of drawing line " " edit some physical properties of the component " " copy and paste diagram of one component " " delete one or more component diagrams " " move more than one components " positions " " change the z _ order of the diagram, set it to back or bring it to front " " save the drawing of the electronic components to one file and the file extension name is *. brd " " print the drawing ". users can finish all these functions easily by clicking and dragging the mouse
電路板元器件繪制系統主要完成了使用鼠標拖拽、鼠標點按的方式繪制電路板上各種常見的元器件圖形;編輯電路板上元器件圖形的位置;編輯元器件圖形的顏色;不失真的對器件圖形進行放大和縮小;編輯元器件圖形的線型;編輯電路板上各個器件的物理屬性(比如電阻的阻值大小、電容的容量大小、額定電壓等) ;復制已經繪制出的電路板上的器件;粘貼剪貼板上的器件;刪除單個或多個已經繪制出的器件圖形;同時改變多個器件圖形的位置;改變繪制區內各個元器件的zorder順序,也就是可以將層疊在一起的圖形置前或置后;把繪制的電路板器件圖保存到指定文件中;能打開、查看和修改保存的電路板器件圖;列印電路板器件圖。Corrosion action slope cable used in cable - stayed bridge in different corrosion medium such as synthesis sea water, solution nacl and simulation acid rain are studied by electrochemical method, for example, linear polarization, tafel extrapolation and ac impedance method
對此,本論文以人造海水、 nacl溶液、模擬酸雨作為腐蝕介質,針對不同類型的鋼絞線,採用線性極化法、 tafel外推法和交流阻抗法等電化學方法研究斜拉橋拉索結構中鋼絞線在不同介質中的腐蝕行為。Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more
迪揚電氣在gis和避雷器的帶電測試與故障診斷分析,電力電纜的故障定位與局放檢測,變壓器電抗器的各種測試診斷與溫度監測, sf6的水分測量與回收,絕緣油的測試分析與濾油處理,紅外測溫與光纖在線測溫,以及各種電阻測試與計量,溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。Normal heat shrinkable tube is universally applied in insulated protection of wire connector and terminal, soldered point, resistor and capacitor ; in anti - corrosion of metallic pod and as wire distinctive mark etc
阻燃性熱縮絕緣套管廣泛應用於電線連接終端,電阻和電容的絕緣保護;金屬的防腐防銹;電線的標志等。The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式,電力系統的發展使得電流差動保護應用於線路保護成為需要,而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先,本文對目前線路保護的研究和實際應用情況進行了討論和分析,比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次,針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點,同時為加快差動保護的動作速度,對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析,結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護,對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。Because of the large scale of the p / g routing network in the memory chip layout, general linear equation group resolving algorithms for calculating the equivalent resistance between the nodes cannot satisfy the restrict of both memory space and running time simultaneously
摘要由於存儲晶元版圖p / g網規模的巨大,對于計算電阻網路中節點間等效電阻問題,直接利用常規線性方程組求解演算法無法同時滿足內存空間與運行時間上的限制。The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability , insulation coordination , electromagnetic interference , but assault safety 。 in china , the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network , low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai , beijing , and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas , such as zhuhai , substations grounding with low resistance revealed some problems , including power supply reliability rapidly dropping , transmitting line often tripping ; and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance
爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析,比較各方式的特點,然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型,在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下,對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算,其計算結果與電科院所作現場試驗進行了比較。2 ) tower grounding resistance, distance between towers, etc can affect the function of line - surge arrester
2 )輸電線路的接地電阻,線路檔距等因素對線路型避雷器的應用有影響。Based on practical application conditions, half - cell potential method, concrete resistance measurement, linear polarization resistance method and etc. 3
根據現場的實際應用情況,最常用的方法有半電池電位法、混凝土電阻率檢測法、直流線性極化電阻法、交流阻抗法以及地質雷達法等。We design and manufacture a complete line of high quality standard and custom temperature sensors including thermocouples, rtd s and thermowells as well as a wide selection of junction boxes, cable and harness assemblies. in 2004, sanjac is iso 9001 : 2000 and as9100a certified that reinforced our ability in providing excellent products for our customers
主要產品為熱電偶熱電阻隔爆耐磨普通特殊鎧裝熱電偶快速接頭表面用熱電偶熱電偶及熱電阻接線盒brskejt各種型號的溫度補償導線等,產品種類豐富種類全。分享友人