放過器 的英文怎麼說
中文拼音 [fàngguòqì]
放過器
英文
slip gear-
Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit
延遲線振蕩器由寬帶放大器、可調衰減器和聲表面波質量傳感器件構成。延遲線振蕩器輸出信號經濾波后與109mhz的本機晶體振蕩器輸出信號相混頻,通過低通濾波取其差頻,並經整形後由數字信號處理電路處理。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 power ’ s quality is decided in the system performance, the amplifier has 4 groups ’ power sources, input 220v through the filter, the transformer transformation, the full - wave rectification, finally through manostat leveling off voltage, after the electric capacity filter outputs
電源質量的好壞是決定系統性能的一個重要因素,放大器共4路電源,輸入220v通過型濾波,變壓器變壓,全波整流,最後通過三端穩壓器穩壓,電容濾波后輸出。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。Supervisor point is behind the postposition of power amplifier, optic signals coming from a tap of 99 : 1 enter into optic spectrum scan module, then the power levels which have been calculated by iterative algorithmic are sent to power control module to guide a set of tunable electronic attenuators
此方案將監測點放在後置功率放大器的後面,從分束器中分出99 : 1的光進入光頻譜掃描模塊,傳給功率控制模塊的光功率值經過選代演算法后計算出均衡后的功率值送到功率控制模塊的控制中心去調節電可調節衰減器。However, by the time a lightning strike has traveled through the distribution network, surge arrestors will have dissipated a proportion of the charge, network impedance will have shaped the impulse and the residual energy can be represented in terms of its waveshape, and its peak current which is what will be present at a service entrance
然而,雷擊經過電力網路進行傳送以後,避雷放電器會將一部分能量泄放掉,網路的阻抗也會對電涌進行修整,而殘余的能量將可以以它的波形來體現,其峰值電流也就是建築物進入端將會出現的情況。In the work of hardware we are responsible for the designing of the dual - channel servo amplifier which is realized through protel99se - a software applied to drawing printed circuit board
根據合同中的規定,硬體組成方面我方負責雙通道電液伺服放大器的設計,具體設計與實現是通過protel99se電路板繪制軟體來完成的。The circuit receives feedback signal of encoder, disposes it by pid and in the form of digit sends control signal which is transformed by d / a into analogue signal to servo amplifier, so further to control motors
電路板接收碼盤反饋信號,通過內嵌的pid演算法,以數字形式給出控制量,經過d a轉化為模擬控制信號給伺服放大器,進而控制電機運行。On the base of the familiarity with the working capacity of every unit the section is one of the main content of the task including the debugging motor servo amplifier servo controller and the whole hardware system ( 5 ) programming on the base of the above work, programming to control the system with mint
控制系統硬體部分的調試。在熟悉各元件工作性能的基礎上,通過大量的實驗,找到正確的連接方法,使硬體系統正常工作。這一部分是本課題的主要內容之一,主要包括對電機、伺服放大器和伺服控制器的調試,以及對整個硬體系統的訝試。Exploiting this insight, he constructed huge “ magnifying transmitters ” ? today called tesla coils ? that generated sparks more than 135 feet long [ see top illustration on opposite page ]
特士拉運用他的洞察力,建造了一個巨大的傳送放大器(現在稱為特士拉線圈) ,可以產生超過長達41公尺的火花(見左頁上圖) 。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。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。A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector
通過與大華無線電廠合作,研製了超高頻傳感器,其主要由天線、超高頻放大器、高通濾波器、寬帶檢波器等組成。2 ignitor : - this is an electronic amplifier that receives electric current from the ballast and boosts voltage to ignite the arc light source in all environments. it initializes plasma discharge within the source by delivering a high - volt pulse to the electrodes
2 ignitor : -是一個從ballast接收電流並向所有環境中的arc light source釋放電壓的電子放大器,它通過向電極傳遞高脈沖來對等離子放電器進行初始化Secondly, the mmic 20 - 40ghz hmmc - 5040 amplifier is used to realize the phemt frequency converter. the feasibility of up / down converter using phemt sub - harmonic mixing is validated by the experimental results. at last, on the base of phemt multiplying, amplifying and gate mixing, the
之後研究了採用hp公司的20 - 40ghz放大器晶元( hmmc - 5040 )設計製作phemt ( pseudomorphichighmobiletransistor )變頻器,通過測試,給出了實驗結果,並通過實驗驗證了採用phemt二次諧波混頻模式,實現上下混頻的可行性。In active section, in order to meet performance of out put power above 10dbm, the power amplifier module of ka - band is fabricated by using hmc283 to achieve the 14db conversion gain. there are five parts that include of waveguide - to - microstrip ? mixer ? filter ? power amplifier and waveguide - to - microstrip. input signal ' s power is 10dbm, after it pass waveguide - to - microstrip, it ' s frequency is escalate from 30ghz to 35ghz
該組件由五個部分組成:功率為10dbm信號經過波導? ?微帶過渡,然後混頻,濾波將30ghz提高到35ghz濾除不需要的諧波鏡頻以及三階交調信號,為了彌補混頻濾波的變頻損耗,加一級功率放大器,此放大器採用hittle公司hmc283晶元,此上變頻放大組件完成了上變頻?濾波?放大功能。D / a conversion chip and isolation amplifiers are used to obtain the comparative levels required by isolation channels, which could be set with actual requirement ; it can enhance flexibility of the module. otherwise, four - channel isolation signal sources are exported using d / a conversion chip and isolation amplifiers as well
另外還利用d / a轉換晶元和隔離運算放大器輸出四路隔離信號源,該隔離信號源能與隔離比較電平通過繼電器進行程式控制切換,這樣擴展了該計數器模塊的功能。These sounds are generally emitted through the mouth, but horseshoe and leaf - nosed bats emit their echolocation calls through their nostrils, there they have basal fleshy horseshoe or leaf - like structures that are well adapted to function as megaphones
這些聲音一般通過口發出,但具有馬蹄鐵形和葉形鼻于的蝙蝠則通過鼻孔發出它們的回聲定位叫聲,在那裡它們具有非常適合放大器功能的基本的肉質馬蹄鐵或葉狀結構。3 special controller for solar lamps including protection devices for charging and releasing, light - controlling, time - controlling,
3太陽能燈具專用控制器過充過放,過控時控It is shown that neglecting the gate - drain capacitance of the mosfet would lead to an overestimation of the optimum device width in the cmos source degenerated lna
本文證明了在cmos源端degeneration結構的低噪聲放大器中,忽略場效應管的柵漏電容將造成對放大管的最優柵寬估計過大。分享友人