高壓放大 的英文怎麼說
中文拼音 [gāoyāfàngdà]
高壓放大
英文
high voltage amplification-
Separately amplifier could separate 3kv / mm high voltage circumfluence, and provided 20 times voltage
隔離放大電路的可以隔離3kv / mm的高電壓迴流,並可以提供20倍的電壓放大倍數。Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比;通過提高壓縮比來彌補動力性的損失;以動力性為主控目標,對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節;通過空燃比的合理控制,直接改善發動機的動力性、經濟和排放指標;作為對缸內燃燒過程的理論分析,進行了燃燒特性的實驗測試;對原汽油機和新開發的液化石油氣發動機,進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。Again call the the ratio, namely the electric voltage of the enlarger s exportation signal with at the same time output s voice ratio for electric voltage, usually use the decibel number to mean. the equipments s letter the ratio is more our output of high enunciation is more little. by any large, letter the ratio is more big, and the elucidation is in the in the signal a the quantity for more smallly, voice returning putting is more high, otherwise contrary. letter the ratio should be generally not lower than 70 dbs, high the letter of the true box the ratio should attain 110 dbs are above
又稱為訊噪比,即放大器的輸出信號的電壓與同時輸出的噪聲電壓的比,常常用分貝數表示。設備的信噪比越高表明它產生的雜音越少。一般來說,信噪比越大,說明混在信號里的噪聲越小,聲音回放的音質量越高,否則相反。Even if the true number is much higher, this is only the smallest of escape valves in the great political pressure - cooker that is china ' s troubled countryside
即便真實數字要遠高於此,這也只是這個巨大的政治高壓鍋- -問題重重的中國農村- -上面最小的一個放氣筏罷了。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。Based on the thorough investigation of the post - regulation and efficiency in multiple output switching - mode power supplies, an optimal combination topology for multiple output switching converter is presented in this thesis, which is consisted of forward converter with active clamp ( fac ), synchronous rectification ( sr ) techniques and magnetic amplifier technique ( magamp )
本文通過研究分析近年來多路輸出開關電源輔助輸出電壓調節和提高效率的方案,面對開關電源朝著輸出低電壓大電流方向發展的趨勢,提出多路輸出開關電源新的拓撲優化組合模式? ?有源鉗位正激變換器、同步整流技術、磁放大器。The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified
據此,對該站進行了串聯諧振分析和並聯諧振分析,並結合測試數據和有關變電站的運行記錄,指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高,引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因,提出了相應的諧波治理措施,包括針對湯6c電容器5次諧波電流含量偏高的原因,提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器(湯sc其餘部分停運)以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象,提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨導線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器,獲得了良好的頻率響應。The instrument is integrated with a multi - channel high precision open circuit potential measurement system for the ion selective electrode and a potentiostat used in voltammetry, an analog lock - in amplifier is also presented to measure the response of light addressable potential sensor
對于不同的測量技術,儀器中集成了用於測量電極的多通道高精度開路電壓測量系統和用於溶出伏安法測量的多路電化學測量系統,以及用於測量光尋址電位傳感器的鎖相放大器。The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation
二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。Circuitry construction tools produced by our company are more than eight hundred of kinds in 18 series, which are suitable for foundation construction, tower group sets up the pole 、 a thread constructs 、 cable construction, optical cable construction, such as entangle and rub flexibly 、 insulating aerial cable and cable skinning device 、 aluminiam alloy cherishes the pole 、 and lead 、 card thread device of ground wire 、 high strength shackle 、 ratchet wheel board hands with sharp board hands 、 tight line device of double hook 、 lifting block 、 nylon wheel and aluminium wheel is pat the thread coaster, and etc, with full series and more kinds. as high technology and reliable quality, we have a good reputation among sane fields at home and abroad
公司生產的線路施工機具包括用於基礎施工,桿塔組立、架線施工、電纜施工,光纜施工等工序的18大類800餘種產品,如機動絞磨、絕緣架空電纜及高壓電纜剝皮器,各類鋁合金抱桿,以及導、地線卡線器、高強度卸扣、棘輪扳手與尖扳手、雙鉤緊線器、起重滑車、尼龍輪或鋁輪放線滑車等,系列全、品種多,產品具有工藝精湛,質量可靠等特點,在國內外同行業中有較高的信譽。The determination of human thymidine kinase ( htk ) in human serum, which is a key indicator of cancers can give information for the diagnosis and treatment of the malign diseases. the protein a layer was first self - assembled onto the gold electrode surfaces of quartz crystals, the monoclonal antibodies were then orientedly immobilized through the specific binding between the fc terminals of the antibodies and the self - assembled protein a. with this sensor, the affinity constant of antigen - antibody binding was estimated to be 1. 85 106 l / mol according to the scatchard ’ s plotting method, which proved the high bioactivity of antibody. finally, an amplified piezoelectric immunosensor was designed to determine the htk in
實驗中將蛋白a吸附於鍍金壓電石英晶體電極表面,用於定向固定htk單克隆抗體,成功研製了檢測htk的壓電石英晶體傳感器,並基於標準scatchard繪圖法,計算出免疫反應的親和常數為1 . 85 106l / mol ,證明該單克隆抗體具有較高的免疫活性;同時基於酶催化沉澱技術,設計了的檢測htk的質量放大壓電石英晶體傳感器,該傳感器可在0 . 1 - 10ng范圍內對htk進行定量檢測,應用此傳感器成功地對5種癌癥病人血清中htk的濃度進行了測定,實驗結果為癌癥的臨床診斷與治療提供了參考。Only transformer coupling can contribute to the voltage gain of an amplifier by virtue of a stepup turns ratio.
只有放大器耦合方能通過開壓匝數比提高變壓器電壓增益。We have designed the scanning and control system, which includes a pre - amplifier, a pid feedback and scanning - control circuit, high - voltage amplifiers and so on. the function of controlling scan and feedback has been realized
設計完成包含有前置放大電路、 pid反饋和掃描控制電路、高壓放大電路等掃描控制電路在內的掃描控制系統,完成各部分電路性能的測試及功能調試,實現反饋和掃描控制。To solve the problems above, this dissertation supported by the project of national natural science foundation ( nnsf ) : research on piezoceramic micro - actuator ’ s polarity modeling and controlling method ( code : 60274053 ) focuses on the research of driving and control technique of piezoceramic. the drivers based on voltage, current control had been designed with the high voltage amplifier as core component
針對壓電陶瓷驅動存在的上述問題,本文結合國家自然基金項目「壓電陶瓷微驅動器件極化模型與驅動方法的研究」 (編號: 60274053 ) ,以高壓運算放大器為核心元件,通過分析電壓、電流型驅動器原理及電路參數,提出了一種彌補其不足的復合型驅動方法。Our main products include all types of automobile halogen lamps, hid xenon lamp, motorcycle lamps and store floodlight. with high quality, long servic life and top grade, our proudcts sale well both in domestic and abroad market, and have won trust of the cutormer
我廠主要產品有汽車鹵素燈、高壓放射氙氣燈、摩托車燈、商場照明燈系列,品質優、壽命長、檔次高,信譽好,贏得了廣大客戶的信賴,產品暢銷國內外。High voltage amplifie circuit was designed and executed, and 7kv high voltage was gained, 200 times amplified voltage was realized
高壓放大電路的設計和製作,可以得到7kv的高電壓,實現了200倍的電壓的放大。The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy
利用fm光譜法將激光單次通過碘吸收室進行線性吸收,再經信號檢測、混頻、積分和高壓放大等伺服電路,實現了在多普勒曲線中心處的頻率穩定,頻率穩定度和復現性可達10 ~ ( - 9 )量級。Then, the optical system and mechnical configuration of the interferometer are realized, which are based on phase detection algorithms and four - step algorithm. in the following work, we designed and realized a dc high voltage amplification circuit by mcu, which is used to driver pzt, and presented a new method to measure the nonlinearity of pzt
設計並完成了精密移相的單片機控制用於壓電晶體驅動的高壓放大電路,並且提出了一種新穎的對工作狀態下壓電晶體非線性軟體校正的新方法,並得到了很好的實驗結果。The two larger machines, which work on hydraulic amplification principle, generate forces up to 3 mn by amplifying the force generated from the 60 kn deadweight machine
兩部較大的力基準機是用液壓放大原理,將來自60kn靜重式標準測力機的力值增大而產生高至3mn之力值。分享友人