表面波度 的英文怎麼說
中文拼音 [biǎomiànbōdù]
表面波度
英文
surface undulation- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 波 : 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...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
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Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性:在深度方向上衰減較慢,傳播較深,波動性大.提出了在道路結構動力響應計算中,利用面波來模擬水平向傳播波,利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性,並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性The temperature of surface concrete varies with environmental temperature, but the conductibility of inner concrete is very poor. as a result, a quick decrease of environmental temperature will lead to large temperature gradient and then tensile stress develop soon in the thick direction, which will probably occur on the entire cross - section
混凝土表面溫度隨外界溫度波動而波動,但內部的導溫性能很差,所以在外界溫度驟降時將引起很大的溫度梯度,從而在厚度方向上拉應力發展很快,這極易引起全斷面拉應力發生。Secondly, the steel balls millstone is used to grind steel ball in ones steel ball factory, and process flocculus the steel balls that possess reticulate veins surface. measure the result as follows : ra ( surface roughness of steel ball ) = 0. 015 u m, wavmess = 0. 06 um, sph ( deviation from spherical form ) = 0. 010 u m, vdwl ( variation of ball lot diameter ) = 0. 015 u m
然後利用製成的鋼球研磨板對鋼球進行超精磨削加工,加工出了表面具有網狀紋理形貌的「絨面」鋼球,利用儀器測量鋼球表面的粗糙度值達到了0 . 015 m ,表面波紋度值達到了0 . 006 m ,圓度達到了0 . 010 m ,球批直徑變動量小於0 . 015 m 。Thickness measurement of coatings and characterization of surfaces with surface waves - guide to the thickness measurement of coatings by photothermic method
覆層厚度測量和表面波紋表徵.光熱法測量覆層厚度Thickness measurement of coatings and characterization of surfaces with surface waves - part 2 : guide to the thickness measurement of coatings by photothermic method
覆層厚度測量和表面波紋表徵.第2部分:光熱法測量覆層厚度Thickness measurement of coatings and characterization of surfaces with surface waves - part 2 : guide to the thickness measurement of coatings by photothermic method ; german version en 15042 - 2 : 2006
覆層厚度測量和表面波紋表徵.第2部分:光熱法測量覆層The difference of temperature fields from considering and neglecting the temperature - dependence of material parameters is compared, and the temperature distributions of al pipe are obtained in angular orientation at various time
給出了溫度隨角向的分佈曲線,比較了物理參數隨溫度變化和不隨溫度變化兩種情況下溫度場的區別,並進一步得到了近場區域表面波的時域波形。In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面,由於zno具有很大的機電耦合系數,而aln的聲表面波傳播速度較高,因此若zno和aln相結合,則不僅具有大的機電耦合系數,而且具有很高的聲表面波速度,這非常適合於製造高頻聲表面波器件。The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity
在分析點光源激勵聲表面波機理的基礎上,求出了線光源激勵的超聲振動的位移表達式,發現線光源激勵的近場區表面波具有波形好,信噪比高,指向性好,幅度強等特點。通過理論推導,得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比,並與入射角和散射角有關;適當減小cfpi的帶寬,增加腔長,增大鏡面反射率,或者減小檢測入射角都可以提高系統的信噪比。The exploitation of intellectualized ultrasonic device of measuring rigidity major : mechanical manufacturing and automation postgraduate cai peng supervisor huang cheng - xiang abstract the ultrasonic technology has been wildly used in industry the ultrasonic technology is introduced to the measurement of mechanical paramoter in material to effectively resolve the problem of measurement of surface rigidity in material by adopting the technology of sensor, computer science and micro - electronic science
超聲波技術在工業上已有了諸多的應用,本課題將超聲波技術引入到材料的機械量的檢測中,採用傳感器技術、計算機技術和微電子技術有效的解決了材料的表面硬度的檢測問題。Accuracy of the measurement system is verified by standard signal sources. frequency tracking error does not reach 50hz. the measurement system has merits of visual display and high accuracy, which is an ideal measurement system for dual - path saw mass sensor
應用標準信號源驗證了測量系統的精確性,頻率跟蹤特性誤差在50hz以內。該測量系統顯示直觀,精度高,是雙聲路聲表面波質量傳感器理想的測量系統。A correlation was studied out here :, for experiment with sparger 1 # ;, for experiment with sparger 2 #. sparger decreased interfacial heat transfer coefficient, total clotted liquid and steam energy transfer and weakened surface temperature vibration. it also decreased thickness of hot water layer, attenuated steam condensation and shortened the time of balance
加裝遮流板使實驗初期階段的表面冷凝換熱系數hif降低76 93 ;減少了累計凝結量67以上;降低蒸汽流能量的傳遞,使表面溫度波動顯著降低;減少了熱水層的厚度;減緩了蒸汽凝結的劇烈程度,大大縮短了系統壓力平衡需要的時間。As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source
如果有供電系統不穩定、波動大,電源的諧波含量過高,紋波系數過大,乃至電源設備損壞、輸出異常等情況出現,將會嚴重影響視頻信號的圖像效果,大大降低防盜系統的穩定性和可靠性,我們採用快速傅利葉變換原理,即fft變換,通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft變換,從而得出信號中各次諧波的含量及信號畸變系數,並將其與正常工況下的參數進行對比,從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況;組成監控系統的設備長期處于工作狀態,往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高,從而影響設備的正常運行,降低設備的使用壽命。Results show that triple reflection signal and quintuple reflection signal of ytype and s type are less 12db, 16. 67 db and 11. 8 db, 17. 3 db than that of " - ' " type saw mass sensor device. experiment results show that insertion loss ( about 14db ) of the devices in center frequency is close to the theoretical value ( about 16db ) developed by p matrix representation. sensing characteristics of y type and s type saw mass sensors have been also tested and analysed in detail. ethanol and pure water mixed solution containning trace nacl is titrated into mass loading area of y type and s type saw mass sensors devices to detect their mass loading sensitivities
本文對y型和s型雙聲路saw質量傳感器件的傳感特性進行詳細測試分析,在y廠書型和s型雙聲路聲表面波器件的質量沉積區中滴定含有微量naci溶質的乙醉和水的混合溶液,以測試器件的質量沉積效應靈敏度,它們分別約為2967ppm . cm丫夢g ( y型)和3一15ppm . emz /協g ( s型) ,與理論值38 . 93ppm . emz / 「 g相近,拼處于國內外同型和s型雙聲路聲表面波器件的頻率一溫度特性幾,其單聲雙聲路相對溫度系數約為10一12hz / ,處于國內外同類研究先進水平。The results show that thinner radar absorbing coatings can strongly attenuate high frequency surface waves, while alternate using of thin radar absorbing coatings and thin radar absorbing coatings compounded by frequency selective surfaces can strongly attenuate wideband surface wave and it is possible that high performance balanced stealth of super wideband can be reached using the alternate radar absorbing coatings
實驗結果表明,低厚度的雷達吸波塗層就可以實現高頻表面波的強衰減吸收,而頻率選擇表面與低厚度雷達吸波塗層相結合的復合塗層與雷達吸波塗層共同交替使用可以實現寬頻段表面波的強衰減吸收,有望實現目標物體在寬頻段范圍內的高性能均衡雷達隱身。By using the detecting system of thermal waves and measuring the change of temperature at the surface of materials, the internal structures can be obtained for purpose of detection and inspection
利用熱波探測系統和測量固體材料表面溫度的變化,可獲取材料的均勻性信息及其表面以下的微結構信息,從而達到檢測和探傷的目的。Current. in order to make diffluent piers with low ridge to be popularized and applied, the surface wave of low fr. current is chosen as the research object. we measure the surface wave elements and the velocity distribution of various diffluent piers scheme by the experiment of physical model. we also analyze the average wave height, the the average value of the square of wave, unit width of the wave ' s energy, the probability density distribution of wave height, and the power chart character, so as to reveal the weakening wave mechanism of the diffluent piers
低fr水流的核心是波浪問題,為了低坎分流墩的推廣應用,本研究以低fr水流的表面波浪作為研究對象,通過物理模型試驗,對各種分流墩方案消能工的下游水面波浪要素、流速分佈進行測試,分析低坎分流墩下游波浪的平均波高、均方根、單寬波能、波高概率密度分佈及功率譜特性變化規律,從而揭示了低坎分流墩的削波機理。Surface waviness terms
表面波紋度詞匯The results show that the more deeper the nozzle immersion depth is, the less the molten steel velocity at the interface, the weaker the oscillation near the interface and the more difficult the occurrence of the slag entrapment become. compared with the round entry nozzle, the rectangular entry nozzle can reduce the occurrence of the slag entrapment
結果表明:採用較大的水口浸入深度可以減小表面速度,抑制液面波動,避免鋼渣卷混的產生;與圓形水口相比,長方形水口能有效地減小卷渣發生的可能性。The main results of this paper are as fellows f 1 ) illtroducing the ultrasonic technology to the rigid measurement, successful1y exploits the practical small intellectualized ultrasonic device of measuring rigidity by applying mechanical technology, electronic technology and computer science 2 ) reading clearcf displaying more various, applying more information, being easiest to accept by user because of adopting liquid crystal display ( lcd ) 3 ) theorizing the mathematical model between the signal of frequency and the rigid value on the device, possessing very importan practical significance 4 ) optimizing the every parts of the device, achieving the goals of lower wastage of energy, smaller, lighter and inexpensive 5 ) taking the measure to reduce the wastage of energy and adopting reasonable management in power supply for the device, making the device skimp more energy, prolonging the life - span of battery 6 ) utilizing the interface of rs - 232, discussing the communication between the ultrasonic device of measuring rigidity and computef, and also forecasting the foreground of advanced exploitation by user
本文工作的主要成果是: 1 )將超聲波技術引入零件表面硬度的檢測當中。應用機、電、計算機技術,研製成功較為實用的小型智能超聲波硬度檢測儀2 )採用lcd ( liquidcrystaldisplay )液晶顯示,使讀數更清晰、顯示多樣化、信息量多、易於為用戶接受3 )在理論上建立了該系統的頻率信號與硬度值的數學模型,具有非常重要的實踐意義4 )對各元器件進行優選,達到低能耗、體積小、重量輕、價格便宜等目的5 )採取措施降低整個系統的能耗並對系統的供電進行了合理的管理,使其進一步達到低能耗,延長了電池的使用壽命。 6 )利用rs - 232標準介面,討論了該超聲波智能硬度測量儀與系統機進行通訊以及用戶進行二次開發的前景分享友人