超聲波振蕩 的英文怎麼說

中文拼音 [chāoshēngzhèndàng]
超聲波振蕩 英文
supersonic oscillation
  • : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ動詞1 (搖動; 擺動) swing; sway; wave 2 (無事走來走去; 閑逛) loaf; wander; roam; loiter; go a...
  1. Analysis and tests show that by using slope compensation, the open - loop instability, sub - harmonic oscillation, non - ideal closed - loop response and noise etc. when duly cycle above 50 %, can be reduced or eliminated

    理論分析與試驗表明,通過引入斜坡補償可以抑制或消除占空比過5 %時的開環不穩定性、次諧傾向、不理想的閉環響應、噪等。
  2. At present the manufacture of surface acoustic wave use the technology of the final submicron. a series of the devices of low insertion loss, high q saw rayleigh surface acoustic wave resonators or stws that insertion loss has less than 5db, load quality factor ( ql ) is more than 1000 on the quartz piezoelectric with zero of first temperature factor in the research. these difference frequencies are 60mhz, 280mhz, 739mhz and 1ghz of normal frequency and at also surface acoustic wave. using 1. 25db noise factor amplifier, careful design curcuit, good setting printed curcuit board, and using the 1ghz surface transverse wave resonator as frequency element, researching the low phase noise surface acoustic wave with sideband phase noise near ? 120dbc / hz deviating 1khz on carrier, spurious suppress with 80db

    本研究採用一階溫度系數為零的壓電石英基片上製作出損耗小於5db 、有載品值因素( ql值)過1000的一系列低損耗、高q值表面rayleigh或stw諧器,頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能表面器。並採用噪系數為1 . 25db的低噪系數放大器,精心設計電路,優化設計布置印製電路板,用標稱頻率為1ghz的表面器為頻率控制元件,製作出在偏離載頻1khz處的單邊帶相位噪近- 120dbc / hz 、雜抑制達80db以上的低相位噪表面器。
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