超低頻電壓表 的英文怎麼說

中文拼音 [chāobīndiànbiǎo]
超低頻電壓表 英文
super-low frequency voltmeter
  • : 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形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : 壓構詞成分。
  • : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
  • 電壓 : voltage; electric tension; electric voltage
  1. By improving surface condition of parts and one shot seal - off clean room grade, using ultrasonic vapor phase cleaning process, the inner parts of vacuum interrupter get cleaner. movable particles have been diminished by automatic current ageing, power frequency hi - voltage ageing and dynamic high current ageing. as the dielectric strength of clearance in vacuum interrupter improved, the probability of re - ignition in test drops evidently

    通過提高零件面加工質量,改善一次封排間的真空衛生條件、制定合理的聲波氣相清洗工藝提高管內潔凈度,採用自動流老煉、老煉、大流動態老煉等工藝進一步消除真空滅弧室內活動性微粒,可提高真空滅弧室真空間隙介質強度,使真空開關投切容器組的重燃率大大降,並通過實驗驗證真空開關投切容器組的重燃率在製造工藝改進後由原來的10 . 7 %降至1 . 3 % 。
  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的一系列損耗、高q值聲面波rayleigh波或stw諧振器,率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同率的高性能聲面波諧振器。並採用噪聲系數為1 . 25db的噪聲系數放大器,精心設計路,優化設計布置印製路板,用標稱率為1ghz的聲面波諧振器為率控制元件,製作出在偏離載1khz處的單邊帶相位噪聲近- 120dbc / hz 、雜波抑制達80db以上的相位噪聲聲面波振蕩器。
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