高阻電位計 的英文怎麼說
中文拼音 [gāozǔdiànwèijì]
高阻電位計
英文
high resistance potentiometer- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 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...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
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A ti in an online mind - control forum recommends a web site called “ block emf ” ( as in electromagnetic frequencies ), which advertises a full line of clothing, including aluminum - lined boxer shorts described as a “ sheer, comfortable undergarment you can wear over your regular one to shield yourself from power lines and computer electric fields, and microwave, radar, and tv radiation. ” similarly, a tinfoil hat disguised as a regular baseball cap is “ smart and subtle
一位受害者在網上的一個大腦控制(精神控制)論壇上推薦了一個網站「阻止電動勢」 (電磁波頻率) ,建議一系列的衣服,包括鋁內襯短褲,如此介紹「的確,你可以穿著舒適的內衣,屏蔽普通電纜和計算機電場、微波、雷達、電視輻射」 ,同樣,一個內藏錫帽的普通棒球帽也是「高明的和精巧的」 。Ti in an online mind - control forum recommends a web site called “ block emf ” ( as in electromagnetic frequencies ), which advertises a full line of clothing, including aluminum - lined boxer shorts described as a “ sheer, comfortable undergarment you can wear over your regular one to shield yourself from power lines and computer electric fields, and microwave, radar, and tv radiation. ” similarly, a tinfoil hat disguised as a regular baseball cap is “ smart and subtle
一位受害者在網上的一個大腦控制(精神控制)論壇上推薦了一個網站「阻止電動勢」 (電磁波頻率) ,建議一系列的衣服,包括鋁內襯短褲,如此介紹「的確,你可以穿著舒適的內衣,屏蔽普通電纜和計算機電場、微波、雷達、電視輻射」 ,同樣,一個內藏錫帽的普通棒球帽也是「高明的和精巧的」 。This model of electromagnetic valve has the single - way check function and a patent design of block - up resisting and is the ideal self control valve for the water supply system with a high level container or tank or the automatic water supply system with a high level container or tank or the automatic water supply facility required the function of adverse current prevention. the amalgamation inflicts to hike in the inflexions of can percolation function that purge
Fcd . 3 148f :進水口與出水口均為4分15外螺紋銅接頭該型電磁閥具有單向止回功能,專利防阻塞設計,是高水位容箱器供水系統或其他兼需防逆流功能的自動供水設備的理想自控閥門;並增加了過濾裝置。The synchronous rectifying and low power sampling technology is used to reduce the power consumption, flexible external loop compensation, error amplifier output clamp are adopted for better system large signal response. the piecewise slope compensation technology is employed to minimize the consequence of over compensation. the sensor resistor is externally connected, which realize output voltage programmable. the overheat protection and under voltage protection modules are integrated in the die to allow the reliable operation of the system
同時,電路設計採用同步整流技術、低功耗電流采樣技術降低功耗,提高轉換效率;採用靈活的外部環路補償技術、誤差放大器輸出嵌位技術以實現良好大信號特性;採用分段斜坡補償技術,消除不穩定因素,並最大程度地減小過補償帶來的問題;採用外接輸出采樣電阻的方式,實現輸出電壓的可編程。The paper first reviews the research background and actuality of the filter " s design in china and other country, introduces the meaning of the project and the work of the paper, narrates the theory of the switched - capacitor network and the basic switch building blocks, analyses the related factors of the design of sc filter. such as the selection of the architecture, the trade off of the opamp " s gain, bandwidth, phase margin, slew rate and setting time, the effect of the switch " s on resistor, how to reduce the charge injection and the clock feed - through, the power consumption and the selection of the sampling frequency and so on
本文首先回顧了濾波器設計的國內外研究背景和現狀,介紹了本課題提出的意義以及本文的主要工作,論述了開關電容網路原理和基本開關模塊,分析了開關電容濾波器設計的相關因素:電路結構的選擇,對運算放大器設計中高增益、寬帶寬、相位裕度、轉換斜率和建立時間等的折中考慮,開關的打開電阻對電路的影響,開關電容電路中怎樣減少電荷注入和時鐘饋通,以及整個電路的功耗問題和采樣頻率的選擇等。According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求,課題期間研製了下位機系統硬體和軟體,開發了上位機監控軟體,其中所作的具體工作包括:測量原理的研究和在系統中的實現,在本次設計中用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控晶元的選擇,我們選用了高集成度的混合信號系統級晶元c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在單片機內的運算;高集成度16位模數轉換晶元ad7705在系統中的應用,我們完成了它與單片機的介面設計及程序編制任務;精確時鐘晶元ds1302在系統中的應用,在此,我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬,該晶元的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測,該部分的實現是通過採用ad421晶元來完成的,本設計中完成了ad421與單片機的spi介面任務,協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下:首先,研究了vcsel的熱場特性,分析了電流擴展,材料參數和工作條件對于溫度分佈的影響;其次,從電極電壓入手,計算出激光器中的等勢線分佈,並對不同深度處的電壓和電流分佈進行比較,研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響;再次,實現了電、光、熱耦合,求出了閾值電壓,計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈,分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響;最後,給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈,分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。Apart from that, it also anlagse the basic princple of ac impedance measurement, and introduce the design and experiment of handware of the workstation in terms of basic princple of ac impedance measurement. the study of this graduation thesis includs the aspects as follwos : ( 1 ) design of measuring circuit diagram. it is designed for the measurment of usual dynamic potentio - scan, experiment of dynamic potentio - scan
介紹了電化學工作站的三種基本功能和性能指標,電化學交流阻抗測量的原理,並進而提出了電化學工作站的硬體系統結構,構建了電化學工作站的硬體結構設計; ( 2 )下位機的介面電路板和測量電路板設計,在設計中力圖提高系統精度、靈活性。This model of electromagnetic valve has the single - way check function and a patent design of block - up resisting and is the ideal self control valve for the water supply system with a high level container or tank or the automatic water supply system with a high level container or tank or the automatic water supply facility required the function of adverse current prevention
Fcd . 3 148a :進水口與出水口均為4分15外螺紋銅接頭該型電磁閥具有單向止回功能,專利防阻塞設計,是高水位容箱器供水系統或其他兼需防逆流功能的自動供水設備的理想自控閥門。The traditional level measuring methods can n ' t meet our demand because the subjective investigated is in such a poor systemic condition that the temperature is a little high and there ' s so many mill dust and steam there. in this article we perform systemic discuss and research against the dynamic level measuring method under special working condition on the basis of analyzing kinds of level measuring technique in and abroad. first we establish the pressure distribution mathematic model in storage bin and then deduce the mathematic relation between level height and the uniform stress on the bottom of the bin and designed a resistance compressive stress sensor used for the special condition and put forward a resoivement according to its zero excursion existing in practical use
由於本研究系統被測對象環境溫度較高且潮濕,同時料倉中有大量粉塵及蒸汽,因此傳統的料位檢測方法不能滿足本測試要求。本文在分析國內外各種物位檢測技術的基礎上,針對特殊工況下動態物料高度的檢測進行了系統的探討與研究。首先建立了料倉中的壓力分佈數學模型,推導出料位高度與倉底均布壓力間的數學關系式,並據此設計了中溫電阻應變式壓力傳感器,同時對它在實際應用中存在的零點漂移等問題提出了改進措施,提高了傳感器性能,解決了上述特殊工況下動態物料檢測的技術難題。According to the relationship of the angle of the maximum torque and the q axis, the reluctance torque for salient pmsm is made full use of and the sator current amplitude is reduced by a large percentage, so that the system robustness is greatly increased. at the speed loop, this paper presents a single value model algorithmic control strategy which is the simplied form of normal model algorithmic control and has less computation work than the latter, so the real - time performance is very good
對于嵌入式pmsm ,根據在電流幅值一定的條件下最大輸出轉矩與(為等效電流矢量和q軸之間的相位角)之間的關系,將磁阻轉矩轉換為輸出轉矩從而提高了輸出轉矩,改善了系統的控制性能;在速度環採用單步模型演算法控制,其計算量比較少,提高了系統的實時性和魯棒性。The design of the circuit ? key parameters including pulse width in the level shifter part and delay time of the filter circuit, and the necessity to add a limiting current resistor at source the ldmos were emphatic analyzed. author finished the design of each sub - circuit
對電路關鍵參數高低壓電平位移脈沖寬度、高端濾波電路濾波寬度的設計及在ldmos源端加入限流電阻的必要性進行了重點分析,完成了各單元電路的設計。By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately
論文深入地分析了高壓線路故障暫態電流行波的波折、反射過程以及折、反射系數的特點,提出了新的單端行波故障測距方法,它不僅能夠有效地識別出測距所用的反射波,而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響,在近區仍可以準確地進行測距;同時模擬阻波器的特徵,設計了低通數字濾波器,對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析,並利用本文提出的單端行波故障測距方法進行故障定位,結論是所提出的測距方法在實際應用中仍是有效的。( 3 ) an ert experiment system is developed base on the new resistance measuring circuit. this system is entirely designed as a field - bus instrument. instructions are sent from the pc to execute some work such as parameter configuration, fault - checking and data - acquiring
( 2 )基於該新型高速微弱電阻變化測量電路研製了一套完整的電阻層析成像系統,該儀表完全基於工業現場儀表模式設計,上位機通過rs232 rs422總線向下位機發送指令完成故障檢測、參數配置、數據採集等各種功能。Based on the study of r - 2r resistor network, a new precision resistor network is also presented. and the high - speed current switch, reference ampler, bias circuit are described in terms of their design principles and circuit structures. this architecture implements the 8bit d / a converter and the settle time achieves 110ns
針對高速的要求,在研究r - 2r電阻網路基礎上設計了一種新型精密電阻網路;同時著重闡述了包括八個匹配的共射極電位不變的電流開關、基準放大器、偏置電路等在內的基本單元電路的設計原理和結構。This system integrated the gps ( global position system ), gis ( geographic information system ), gsm ( global system for mobile ), graph theory, the technology of computer network and so on. it has the function of displaying electronic map and vehicle real - time monitoring, vehicle alarm processing, the optimization of the shortest path and so on. it can monitor and manage the vehicles remotly effectively which is important for the vehicle keeping the security ; it can also improve the vehicle running benefits, alleviate the traffic hustle and jam through the shortest path optimization
該系統綜合了全球衛星定位系統( gps ) 、全球移動通訊系統( gsm ) 、地理信息系統( gis ) 、圖論、計算機網路技術於一體,可實現電子地圖顯示、車輛實時監控、車輛報警處理、車輛最短路徑選擇等功能,能有效的實現對車輛的遠程監控和管理,對保障車輛的安全有重要作用;通過選擇最短路徑可以提高車輛的運營效率、緩解交通擁擠和阻塞。分享友人