noise source 中文意思是什麼

noise source 解釋
噪聲源；聲源
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. Secondly, we make an in - depth study and analysis in allusion to the given oscillatory circuit - butler common base harmonic circuit. the detailed analysis of the dynatron which is the main noise source in the oscillatory circuit is also made, including how excitation affects the dynatron and crystal

    然後針對特定的振蕩電路結構-串聯型巴特勒共基振蕩電路-進行深入的研究和分析，並對主振電路中主要的噪聲源-三極體進行的深入分析，包括激勵對三極體及晶體的影響。
  2. W is a zero mean white noise source.

    W是一個零均值的白噪聲源。
  3. A study on the surface noise source identification of a diesel engine

    柴油機表面噪聲源識別技術研究
  4. W is a zero mean white noise source

    W是一個零均值的白噪聲源。
  5. A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  6. Therefore, where appropriate the screens could be incorporated in a landscaping scheme, or be made of a transparent material ( e. g. glass ) to minimize their visual impacts. provide enclosure of noise source where feasible

    因此，適當的話，可把隔音屏的功能融入園景計劃，或者採用透明物料（例如玻璃）製造隔音屏，以盡量減低視覺上的影響。
  7. Study on analysis and control for vibration and noise source in a air - conditioner of window

    窗式空調器振動噪聲源的分析和控制研究
  8. Identification and control of noise source in premixed concrete plant of construction material factory

    建材廠混凝土攪拌站噪聲源識別與控制
  9. This will be dealt with in this paper. the discrimination for noise source from qn700 indicates : the fan noise ( 625hz ), the electromagnetism noise ( 962hz ) and the burning noise are the main noise sources

    對汽車燃油空氣加熱器中具有典型代表結構的qn700型樣機的測試分析表明：風扇噪聲（ 625hz ） 、電機噪聲（ 962hz ）和燃燒噪聲是加熱器的主要噪聲源。
  10. Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    文摘:應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  11. Noise source analysis on ammonia refrigeration screw compressor

    氨製冷螺桿壓縮機組噪聲源分析
  12. According to the characteristics of the noise source, noise reduction structure was designed in outlet and inlet of cooling system respectively, it turned out spreader noise is decreased obviously

    針對這些噪聲源的特性採取相應的降噪措施，在進、排風口分別設計了消聲結構，使攤鋪機噪聲明顯降低。
  13. Noise source identification of diesel engine by structure vibrating measuremen

    通過表面振動測量確定柴油機的噪聲源分佈
  14. Accelerating noise was measured and analyzed for a passenger car, the inlet air noise of its engine has been found to be the main noise source during the car accelerating period

    運用該技術對某汽車的加速噪聲進行測量和分析，發現發動機進氣噪聲是該車主要的加速噪聲源。
  15. A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。
  16. Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。
  17. Study on noise source identification based on combined wave superposition method

    混合波疊加法識別噪聲源的理論與試驗研究
  18. The results show that the main noise source is the fuel cell auxiliary system while roof panel and rear quarter panel are the key parts contributing to noise radiation

    其總布置和噪聲源有別于傳統汽車，為了提高乘坐舒適性，很有必要研究其振動噪聲特性。
  19. Based upon discussion on the way of noise propagation in internal combustion engine, a variety of methods for noise source identification and some of new technology occurred in this field in recent years are expounded with emphases in this paper

    摘要在論述了內燃機噪聲源的傳播途徑基礎上，著重剖析了用於內燃機噪聲源識別的各種方法和近年來在該領域出現的一些新技術。
  20. Application of sound intensity measurement method in spotting the noise source of engine surface

    聲強測量法在發動機表面聲源識別中的運用
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