磁力放大器 的英文怎麼說

中文拼音 [cílìfàngdàqì]
磁力放大器 英文
magnetic amplifier
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 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
  • 磁力 : [物理學] magnetic force; force on charge
  • 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。
  2. They do not need to go to the operating theatre and the prosthesis can be extended without additional surgery. there is a powerful magnet mounted inside the prosthesis. the patient simply needs to put his leg inside a specially - designed magnet driving machine to undergo the lengthening process and can be discharged immediately after the extension process

    最新一代金屬骨伸延儀器更是無創性設計，病人無須入手術室，只須把已植入金屬骨的腳放進機器內，機器便會產生巨大的磁場，醫生透過磁力作用，操作金屬骨內的組件，讓它慢慢伸延，每次伸延的長度為4mm 。
  3. In this paper, the mechanics model and computer control method for electromagnetism vibration feeder are studied. the emphases are put on the seeking of optical motion states and the realization of these states by computer control. using labview ( laboratory virtual instrument engineering workbench ), a waveform generator is established to control the electromagnetic force

    本文對電磁振動給料機的力學模型與計算機控製做了比較深入的分析和研究，特別是給料機的力學分析與最佳運動狀態、電磁鐵的一些特性和用labview實現計算機控制，在與傳統的控制方法對照的情況下，建立了對比較周全的力學模型，提出了利用labview程序產生一個波形發生器，經過放大后對電磁鐵進行控制。
  4. But the power electronic devices in pwm power amplifier are working in the on - off state, easily producing the over - voltage and over - current phenomena. under tht condition the power electronic devices are bearing higher dv / dt, di / dt and more energy losses, influencing itself capability and life - span. at the same time, the dv / dt, di / dt also cause the severe electromagnetism disturbances, such as the disturbances in the photoelectric theodolite will make the other systems working improperly

    然而在pwm功率放大器的主迴路中電力電子器件工作在開關狀態，易產生過壓、過流現象，器件承受較高dv dt 、 di dt並產生較大的損耗，影響器件本身的性能和壽命，同時dv dt 、 di dt還會產生嚴重的電磁干擾，如在光學測量設備中，這種干擾將會影響其它系統正常運行。
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