超聲波溫度計 的英文怎麼說

中文拼音 [chāoshēngwēn]
超聲波溫度計 英文
ultrasonic thermometer
  • : 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...
  • : Ⅰ形容詞(不冷不熱) warm; lukewarm; hot; gentle; mild Ⅱ名詞1 (溫度) temperature 2 (瘟) acute ...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • 溫度計 : [物理學] thermometer; thermograph
  • 溫度 : [物理學] temperature
  1. 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諧振器,頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能表面諧振器。並採用噪系數為1 . 25db的低噪系數放大器,精心設電路,優化設布置印製電路板,用標稱頻率為1ghz的表面諧振器為頻率控制元件,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振蕩器。
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