脈沖電流發生器 的英文怎麼說
中文拼音 [màichōngdiànliúfāshēngqì]
脈沖電流發生器
英文
impulse current generator- 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...
- 發 : 名詞(頭發) hair
- 生 : Ⅰ動詞1 (生育; 生殖) give birth to; bear 2 (出生) be born 3 (生長) grow 4 (生存; 活) live;...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
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The technology of high power constant current charging, high voltage heavy current discharging switch, high speed and high voltage pulse generator, precision synchronization delay, auto control and so on are concretely introduced in this paper
具體研究了大功率恆流充電技術、高壓大電流放電開關、高速高壓脈沖發生器、高精度延時同步技術及系統自動控制技術。This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。The technology of alternating - current - boosting by way of constant current is successfully used to charge capacitors with 25 kilojoules of energy in only eight seconds. rail - gap switch with performances of long life and highly steady state are designed. and the high voltage pulse generator, which can produce low - excursion and fast - rise pulses, are designed by using double trigger circuit and hydro - thyristor as switch
在大功率恆流充電技術上,成功的應用了交流調壓式恆流技術,可以在8s內讓電容器儲存25kj的能量;設計出了長壽命、高穩定的軌道開關;採用氫閘流管做開關,使用雙觸發電路,研製出了低抖動、快前沿的高壓脈沖發生器(點火機) ;採用單片機和pld ,研製出了精度為10ns的延時同步機。This paper reviews current experience on intraoperative monitoring spinal cord, and develops a set of intelligent somatosensory stimulator, which produces pulse current to stimulate trunk and limb of patients
本文在綜合分析術中脊髓功能監護的現狀基礎上,擬研究開發一套系統所需的智能化的體感刺激器,其功能是產生脈沖電流,對軀乾和四肢進行恆流電刺激。Finally the article introduces a method to seek for im. the circuit which can generate and control strong impulse is presented, those important parts used are also introduced in brief. experimentations prove that this controlled circuit can achieve scheduled function very well
給出了完整的強電流脈沖發生及控制電路,對控制電路中所運用的重點器件作了簡單的介紹,實踐證明,該電路能夠很好地實現充磁退磁的功能。However, the military application of uwb pulsers is limited by the fact that they have to depend on the ground dc power supply as their primary energy source
目前,各種超寬帶脈沖發生器都離不開地面的直流充電系統,因而使得它在軍事領域的應用受到限制,尤其是制約它作為進攻性武器的使用。The study of the effect of material properties and dimensions and loading currents on liner buckling, using a capacitor bank as a driver, indicates that the mode number for buckling increases with the ratio of radius to thickness of a liner, and the yield strength to plastic hardening modulus, but keeps invariable with the increase of loading current, and that the magnitude of buckling increases with the loading current
用電容器組脈沖發生器裝置作為驅動源,設計4種不同材料、不同尺寸的金屬套簡,通過調節電容器組的充電電壓得到不同的加載電流,研究材料及幾何參數、加載脈沖特性對套簡屈曲的影響;採用瞬態非線性有限元方法對實驗結果進行了數值模擬。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。The heart of hvdc link is its control and protect system, and my work is focused on firing - pulse generator an important part in the control and protect system
直流輸電的控制和保護二次系統是國產化的重點,而脈沖發生器是控制和保護系統中的關鍵技術之一。The mixed control chip sg3525a combined with hardware pi controller generates the high - frequency pwm pulse for the first inverter. the digital control block tms320lf2407a mainly provides current preset for constant - current source through the outer filter, pwm pulse for the second inverter and drive signal for the high - frequency pulse power supply
其中變極性電源的一次逆變pwm信號由pwm發生晶元sg3525a ,配以外部硬體電路pi調節器產生;一次逆變閉環控制迴路的電流給定(配以外部濾波) 、二次逆變pwm驅動以及高頻脈沖電源的控制則由tms320lf2407a數字控制器實現。分享友人