脈沖電流檢測 的英文怎麼說
中文拼音 [màichōngdiànliújiǎncè]
脈沖電流檢測
英文
pad - pulsed-amperometric detection- 脈 : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
- 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...
- 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...
- 檢 : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
- 檢測 : check; detection; test; gauging; detecting; sensing; [工業] checkout; measuring
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Corona pulses current method is a way which can be used to detect faulty insulators on ground
電暈脈沖電流法是一種地面檢測不良絕緣子的方法,但目前應用中其檢測的準確度較低。But its accuracy of detecting is low in application. in this paper we try to find a method based on artificial neural network to improve the accuracy of detecting faulty insulators
本文力圖通過大量的實驗室和現場數據的分析,發展一種基於人工神經網路的不良絕緣子診斷方法,提高脈沖電流法用於檢測不良絕緣子的準確性。By using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱,得出反映間隙放電狀態的各種時間脈沖,利用計數器分別對其計數,再送給單片機運算處理,輸出控制環節所需的各種放電狀態時間百分數。Abstract : by using a counter and an operation microprocessor, this paper analyses the measuring method and designs an instrument of edm sinking process in discharge state. this instrument takes samples of voltage, current signal and strong and weak of high frequency signals of detecting voltage amplitude, translates them into various time pulses in discharging state. and a counting unit turns these pulses into digital signals, then send them to a microprocessor. finally various discharge time percentages are sent to the control tache
文摘:通過采樣電火花加工放電間隙的電壓、電流信號和檢測電壓幅值上的高頻信號的強弱,得出反映間隙放電狀態的各種時間脈沖,利用計數器分別對其計數,再送給單片機運算處理,輸出控制環節所需的各種放電狀態時間百分數。At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder
硬體方面,採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。It has been confirmed practically that the diamond highness above base material can be adjusted with the range when the generator is put into use, and the result shows that the current density drop sharply with the increase of machining gap
結果表明,間隙值的擴大伴隨電流密度的顯著下降,檢測電解電流控制脈沖能量的方法對實現電蝕層厚度基本可控是可行的,可讓金剛石突出一定高度。Secondly the detection precision is only related to the synchronization phase but not to the amplitude of the mainline voltage because that it uses the optimized pulses synchronous with the mainline voltage as modulation signals. thirdly it decreases the requirement of the input low pass filter and eliminates the error resulting from the direct component and even harmonics of load current. the most significant merit is that it can eliminate the effect of a few low order odd harmonics and the detecting circuit is easy to be implemented
模擬和實驗結果表明該方法的主要優點有:不需使用乘法器進行信號調制,調制信號採用與電網電壓同步的優化特定脈沖,其檢測精度只與同步相位有關,而與電網電壓幅值無關;降低了對輸入低通濾波器的通頻帶要求,直流和偶次諧波分量對檢測精度沒有影響;突出的優點是可以消除有限個低奇次諧波對檢測結果的影響。With the mathematic model of tracking beam current by velocity, real - time tracking can be obtained ; with current simulation controlling transducer and subsection linearity, precision of velocity ( error in ? 1 % ) is triumphantly can be controlled ; with inspection of the pulse numbers of switches, the position of all vehicles are checked to eliminate the error of calculating distance between all ones
通過建立速度跟蹤束流的數學模型,較好地解決了速度跟蹤束流的實時性問題;通過採取用電流模擬量控制變頻器和分段線性處理的辦法,成功地解決了速度精度問題(誤差在士1 %內) ;通過檢測接近開關觸發的脈沖數,適時校核所有小車位置,消除各車之間距離計算誤差,從而很好地解決了距離累計計算誤差。The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )
硬體電路設計包括:工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路(恆流源電路、時基信號處理電路、被測信號處理電路)設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括:主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號,並對三種不同測試狀態(靜態、動態、暫態)下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the on off of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation
該型產品是為微車無觸點點火系統而研發的,它由磁脈沖傳感器和控制組件構成,內置於分電器內,通過傳感器檢測發動機曲軸位置信號汽缸信號,然後經控制組件處理,控制點火線圈中電流的通斷,從而達到點火目的,具有閉合角自動調整等功能。It is composed of magnetic pulse sensor and control components, and is a built - in part inside distributor. it detects engine cranking position signal and cylinder signal via sensor, followed by treatment by control unit, thus controlling the onoff of the current of control ignition coil to achieve the purpose of ignition. it has a function of auto closing regulation
該型產品是為微車無觸點點火系統而研發的,它由磁脈沖傳感器和控制組件構成,內置於分電器內,通過傳感器檢測發動機曲軸位置信號、汽缸信號,然後經控制組件處理,控制點火線圈中電流的通斷,從而達到點火目的,具有閉合角自動調整等功能。Pointing to the measurement of pulse current ' s peak value and frequency generated in the discharge circuit the article gives an analysis on its principle, correspondingly, the article introduces how to measure the peak value of pulse magnetic field and magnetic suction of the permanent magnet
對放電迴路產生的脈沖電流峰值以及其波形的檢測進行了原理上的分析,對永磁吸盤里永磁體中產生的脈沖磁場峰值的檢測以及永磁吸盤所產生的永磁吸力的檢測也作了相應的介紹。About the transducer between rotor and power source, the paper uses a cycloconverters, comprising 36 thyristors, and analyzes the control of circumfluence, the method of cosine crossing, the producing of trigger pulse, zero current detecting, commutating logic control and its mathematical model
對雙饋電機轉子側所接變頻器類型,本文也進行了對比分析,對選用的循環變流器的原理還作了進一步的分析,包括環流控制方法、餘弦交截法原理、觸發脈沖產生、零電流檢測和換向邏輯控制等部分,並給出了其數學模型。The microprocessor is used to realize digital control as flip plus of the scr. the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system. furthermore in the zero - current detection circuit, use the photocoupler gaalas ired and photo ic to detect zero - current, furthest shorten the commutating " died region ", prevent the current from distorting
設計中採用單片機控制可控硅的觸發脈沖,實現數字化控制,並利用mitel公司的三相pwm交流電機脈寬調制晶元sa866ae ,成功研製了交-交頻器中的低頻信號發生器裝置,效果良好;此外利用用光電檢測元件進行系統零電流的檢測,盡可能地縮短換相死區,防止電流發生畸變,成功地解決了原有低頻電源系統中存在的兩大難題。An energy controllable ecm pulse generator which machining gap appearance changes with the detected eum current variable is developed, to make the electrolysis thickness of ecm and machining gap width of the diamond controllable
用檢測電流的方法,設計和研製隨間隙狀態變化能量可控的脈沖電解電源,用於金剛石節塊電解修刃,以實現電解電蝕層厚度的基本可控,從而可實際控制金剛石的出刃高度。Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition
全文共分六章:第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等;第二章、針對五位置傳感器bldcm的起動問題,文中詳細給出了檢測脈沖轉子定位起動技術;第三章、從電機的數學模型入手,詳細論述了反電動勢端電壓法和系統的控制策略;第四章、介紹了硬體實現中的兩個重要器件: dsp ( tms320f240 )和功率管逆變器控制晶元( ir2131s ) ;第五章、詳細給出了控制系統的硬體實現細節;第六章、利用ti提供的ccs集成開發環境,將前面章節的控制方案用軟體加以實現,給出了主要部分的程序流程圖和一些編程要點以及實驗結果。The chip, about two square centimeters, or a little bigger than a dime, tests for electrical impulses that signal acidic or nonacidic liquids moving through the esophagus
晶元大約2平方厘米大小或更大,當酸性信號或非酸性液體流經食道時檢測其電脈沖。In order to insure pressurize, the edges and corners of the flume box should be agglomerated with right - angle aluminum material. in the part of the water heater circuit design and analysis, base on the induction cooker circuit, the main circuit, control circuit, protection circuit were mainly analyzed. and some circuits those do not relate close to the water heater circuit were ignored
電磁渦流熱水器的電路設計分析部分,主要在電磁爐電路的基礎上,著重對主電路、控制電路、保護電路進行分析,分析了電路的工作原理和工作過程,而對于與電磁渦流熱水器關系不大的某些電路如試探脈沖產生電路和負載檢測電路等可以忽略。So by this method, we can test the water content of the raw cement slurry through testing the velocity of the detector, it is certainly that it can test other slurry, such as paper slurry, mud slurry, mine slurry ctc. the fluid mechanics charactoristic of the slurry is complex, therefore it is difficult to establish the two - dimension or three - dimension mathematical modle to decide the relationship between the water content and the revolving speed of the detector. so the research for rotational detector in this topic is through the method of proper regressive analysis of experimental datas to establish the relation among the water content, the palse and the voltage
料漿的流體力學性能是復雜的,要想通過建立二維或三維的仿錐形旋轉式檢測頭在料漿中旋轉的流體力學數學模型,來確定料漿水分含量與檢測頭的轉速關系是十分困難的,甚至是不可能的,因此本課題對于旋轉式檢測頭的研究,是通過對實驗數據進行多元線性回歸的處理方法,建立起水分含量與紅外線對管輸出的脈沖數p及電源電壓之間的關系。分享友人