限制放大器 的英文怎麼說
中文拼音 [xiànzhìfàngdàqì]
限制放大器
英文
limiting amplifier- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 放 : releaseset freelet go
- 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
- 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
- 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
- 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
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The useful magnification by an optical instrument is limited by the resolving power of that instrument.
光學儀器有效的放大倍數受到該儀器分辨能力的限制。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 chief weapon in the arsenal of those fighting visual pollution here is a law that restricts the type, size, number and placemen of roadside advertising sign
的主要武器是通過一項法律,對路旁廣告標志的種類、尺寸大小、數量及放置地點予以限制。Playback modes single - frame ( image only, image and information ), histogram with luminance limit display, index ( 4, 9, or 16 frames ), enlarged playback ( up to approx. 5x ), file browser, slideshow, manual and auto rotation
單格播放(只有影像、影像及資料) 、有亮度限制顯示的階調分布圖、索引播放( 4 、 9或16張) 、放大播放(可最多放大約5倍) 、檔案瀏覽器、滾動顯示、手動及自動旋轉Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed
其後,在具體的子adc設計中,對比各比較器類型的優缺點,並基於預放大鎖存快速比較理論,提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制,在回饋噪聲對輸入參考電平的影響和功耗之間折衷,確定優化的參考電阻串阻值;根據不同級精度的編碼要求,設計出時鐘控制編碼電路。The exportation resistance of a device work device with what link after loading the resistance s the certain connections for should satisfying, in order to prevent mount to load the appearance produce the obvious influence. with each other connect to say to electronics equipments, for example after signal connect the enlarger, ex - class to connect class, only behind first - degree importation resistance before larger than first - degree exportation resistance 5 - 10 times are above, can think the resistance to match good ; connect the box come saying, electronics tube the machine should choose to use with for the enlarger its output to carry the mark to call the resistance the box for, but transistor enlarger then have noing this restrict, can take officing why resistance of equal or approximate box
一件器材的輸出阻抗和所連接的負載阻抗之間所應滿足的某種關系,以免接上負載后對器材本身的工作狀態產生明顯的影響。對電子設備互連來說,例如信號源連放大器,前級連后級,只要后一級的輸入阻抗大於前一級的輸出阻抗5 - 10倍以上,就可認為阻抗匹配良好對于放大器連接音箱來說,電子管機應選用與其輸出端標稱阻抗相等或接近的音箱,而晶體管放大器則無此限制,可以接任何阻抗的音箱。As a result, an amplifier of this type may have outstanding low frequency power supply rejection, but the negative supply rejection is fundamentally limited at high frequencies
因此,此類放大器會有傑出的低頻供電抑制,但負電壓供電會被限制在高頻The injection locked can make power be amplified, but limited by the working state of the injection locked oscillator, the injection locked power amplifier can only work in continued - wave or pulsed - wave condition
雖然採用注入鎖定功率放大方案,可以實現功率的放大,但受被注入鎖定振蕩器的工作狀態限制,該種方案功率放大器只能工作在連續波或者脈沖狀態。Because of the appearance of erbium doped fiber amplifier ( edfa ), the problem of optical fiber loss has been solved basically. then people ' s attention is more and more concentrating on the research of the optical fiber communication system which is limited by optical fiber dispersion instead of that which is limited by optical fiber loss
由於摻鉺光纖放大器( edfa )的出現,基本上解決了光纖損耗問題,從而使人們的注意力越來越多地從受損耗限制的光纖通信系統轉向受色散限制也即受帶寬限制的光纖通信系統的研究。The air - fuel ratio closed loop control adjusts the air - fuel ratio near the theoretical value by controlling the supplementary air of supplementary valve based on the signals of oxygen sensor, running speed and water temperature and which is necessary condition for three - way catalyst converter to work more efficiently
空燃比閉環控制是根據氧傳感器、轉速和水溫信號,控制化油器后補氣閥補氣將空燃比控制在理論值附近,為三元催化轉換器高效工作準備必要條件,使其最大限度降低尾氣排放。Hence, the requirements of the servo control card are getting much sophisticated. in this thesis, the research work and implementation details of a 6 axes servo control card are discussed. this card is based on the ti company ? dsp chip tms320f240 and has realized the following functions : a ) signal encoder, b ) position limit, c ) dual ram communication with cpu, d ) coordinated control e ) dia conversion
該卡以ti公司的16位定點數字信號處理器tms320f240為核心晶元,實現6路編碼器信號輸入處理,軸限位中斷處理,通過雙埠ram與pc進行通訊,接收pc發送過來的控制指令和數據,完成插補運算、聯動運算等控制,通過d / a轉換電路,將結果轉化為模擬電壓送伺服放大器驅動電機。This paper introduces the design of a data acquisition circuit of the loading - capacity limiter, and analyzes on the error of the pressure sensor, power source, instrument amplifier ad620 and a - d converter
介紹了一種起重量限制器的數據采樣電路的設計,並對壓力傳感器、電源、儀表放大器ad620 、模數轉換器誤差進行了分析。For the signals are very weak, the lock - in amplifier is employed to extract the signals in the circuit design. it can inhabit the noise in the most and maximize the signal - to - noise
因為信號十分微弱,所以在電路設計上採用鎖相放大器來提取信號,最大限度的抑制噪聲,提高系統的信噪比。The force transducer that was specially developed for the very restricted mounting situation has amplifier electronics with 4 - 20 ma signal output built in the space saving thin - film measuring cell makes this possible. plug - and - play is, of course, possible where a component is replaced
為在嚴格限制的裝配條件下工作而特別改進的力傳感器內建有輸出4 - 20 ma信號的電子放大器,採用薄膜測量單元讓我們可以節省下空間來放置放大器。Results from hspice simulation and foundation show that the band - gap voltage reference of ic is 3. 126v, has a psrr of 65db, an accuracy of 23ppm / in [ 0, 70 ], and the band - pass filter has an gain of 73db, whose band - pass frequency is 0. 1hz ~ 10hz. comparator ’ s window is 700mv. time sequence and functions of digital circuits are normal
Hspice和foundation軟體模擬的結果顯示,帶隙基準電壓源為3 . 126v ,電源電壓抑制比為65db ,溫度系數為23ppm / ;帶通濾波放大部分增益為73db ,帶通頻率為0 . 1hz ~ 10hz ;雙限電壓比較器窗口為700mv ,功能良好,數字電路時序正確,功能正常。It combines the newest com > asp and other correlative technology and uses the oriented - object software integrated way and provides the correlative serves as web map browsing > inquiry and analysis for vast numbers of internet users according to the stable and efficient principle. 1 % the design and reality of client because of the limit of internet ' s wide, the client must be little enough. base on this, we use atl to develop client ( atl control that we performed is about 70kb ). then we take atl control into asp page. using the specific property that ie supports activex technology, we directly send the html code and atl control to client. at client, we realize the display ^ zoom out > zoom in > wandering > simple analysis and searching
1 、客戶端的設計與實現由於受到internet帶寬的限制,客戶端必須做的盡可能的小,基於這種考慮powerintermap採用atl開發客戶端的控制項(開發的控制項大小在70kb左右) ,把atl控制項嵌入到asp頁面中,利用ie瀏覽器支持activex組件的特性,通過asp頁面把客戶端執行的html代碼和atl控制項直接發送到客戶端,在客戶端通過調用atl控制項的介面實現數據的下載,圖形的顯示、放大、縮小、漫遊,簡單的分析、查詢等功能。Moreover, the saturation characteristic of raman fiber amplifier is also one of the important parameters and the total power of signal light input into the fiber is limited by it
另外,飽和特性也是光放大器的重要指標之一,它限制了可以輸入光纖的總信號光功率。The traditional methods of increasing the dynamic range of the receivers, such as sensitivity time control ( stc ), automatic gain control ( agc ), and band - pass intermediate frequency ( if ) limiting, are researched. it is pointed out the limitation of the traditional technologies in increasing the dynamic range in wideband digital ew
( 3 )研究了動態范圍的相關參數,分析了擴大接收機動態范圍的常規方法,如靈敏度時間控制、自動增益控制、中頻限幅器和對數放大器等,並分別指出常規方法應用於寬帶數字ew接收機的局限性。Background is high resolution moving picture. the working principle is like midi karaoke player. but the defect of midi is obvious, midi music is pure musical instruments play combination, expression ability be got restriction. now, with the advance of technology, will use the form of mp3 lyric karaoke songs to replace the form of midi, the song files playing have realized original sing, to improve the amusement of karaoke. make mtv sing more to be fill with expression, another, the price is cheap, below with midi karaoke player product of same class. becase support cd vcd dvd jpeg mp3 mpeg4 disc form moreover, so apply extensively
這款點歌機主要的特點是支持mp3走字字幕格式的mtv歌曲文件,背景是連續滾動播放的高畫質視頻,類似於midi點歌機的工作原理,但是midi的缺陷是現而易見的,它的音樂是純樂器音符的演奏組合,表現能力就受到了限制,隨著技術的進步,用mp3走字的方式來替代midi走字的方式演義卡拉ok歌曲,歌曲文件的播放就實現了原聲原唱的要求,大大提高了卡拉ok的娛樂性,使mtv演唱更富有表現力,另外,性價比也較突出,價格總體要低於同檔次的midi點歌機產品,由於同時兼容普通cd vcd dvd jpeg mp3 mpeg4碟片的播放,具有廣泛的適用性,所以是家用娛樂設備的不二選擇。To increase the energy storage and reduce fiber nonlinearities, the feasibility of multimode fiber being a waveguide in fiber amplifiers and fiber lasers have been discussed
基於這樣的限制,本文探討了以多模光纖作為光纖放大器和光纖激光器增益介質波導的可行性。分享友人