表面波測試法 的英文怎麼說
中文拼音 [biǎomiànbōcèshìfǎ]
表面波測試法
英文
surface wave testing method- 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...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 試 : 名詞(古代占卜用的器具) astrolabe
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
- 測試 : test; testing; checkout; measurement
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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Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator
本文研究了以低損耗、高q值聲表面波(其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ,和聲表面橫波等)諧振器的工作原理、設計參數、製作工藝及其實驗結果,並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器,以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。The point blast induced spherical wave is the especial instance of the ellipsoid shock wave. at last, the experimental data in alcohol are in good agreement with the calculated results of the model by analysis of the data of the laser pulse induced the laser plasma shock front by acoustics means
最後,設計應用聲學方法對酒精中產生的激光等離子體沖擊波波前傳播過程進行測試,對兩個不同方向上激光等離子體沖擊波波前測試數據的分析表明,旋轉橢球面的沖擊波模型與實驗測量結果相吻合。It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules
概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現,利用該晶元的資源,實現各模塊的調度,完成對導航電文的提取,重新組幀,定位解算以及對外介面;在解算部分,把載波相位定位與碼測距定位相結合,利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試,以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。Based on mono - pulse radar system and the analysis of terrain echoes, a geometrical model of air to ground ranging is constituted. by using the signals received from the sum and difference channels of terrain follow radar, a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained. according to the characteristics of the echoes, the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對一維單脈沖雷達體制,分析了地形目標回波特性;建立了地形跟隨雷達空地測距的幾何關系;利用雷達收發信號,導出了地形跟隨雷達和差接收通道的回波信號表達式,進行了波形模擬,得到了地形跟隨雷達的地面散射產生回波在時域中的特性;根據和差回波特性,闡述了差信號過零點檢測測距的原理和方法及工程實踐中的應用,並給出了真實雷達對外輻射試驗的結果,驗證了文中的模擬。Standard test method for ultrasonic examination from bored surfaces of cylindrical forgings
圓柱體鍛件表面砂心的超聲波測試的標準試驗方法A measurement method of microwave surface resistance of large area high tc super - conductive thin films
高溫超導薄膜微波表面電阻測試方法Though both of the methods have it ’ s own advantage and disadvantage, the rs can be measured with high sensitivity
這兩種方法雖然各有優缺點,但都能夠測量高溫超導薄膜的微波表面電阻,而且測試靈敏度較高。Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device
本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡航導彈導引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究,研究了金屬網柵用於導彈頭罩和飛機雷達艙罩隱身的相關理論,推導了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝,在玻璃表面上製作了一塊面積為70mm 70mm ,線寬為5 m ,線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用,而且不影響精確制導的紅外線高效透過。Based on the investingation and some study methods of the stability on the goaf, the paper has the goaf of the first and second tunnels of wu long channel on coal mine railway leased line in da ning of shanxi province as an example, according to the engineering geological invesitigation and maping in the earth ' s surface, also combining the visit on the relate people, firstly has a geological judge on the space extend of the mostly ledges which have been picked ; then adopts the instrument of engineering surveying and checking ( for short sws ) which is relatively advanced inside and outside to test by surface wave the rockmass and solid near the middle line of the tunnel ( total forty meter ), and has a relatively exact judgment on the place that the goaf impossible reveal ; lastly passing the validate by drilling, it make clear that the results which tested by sws is reasonable and believable, based on finding out clearly the space extend of the goaf, the author makes a relatively systemic study on the stability of wall rock around the goaf
因此,查明采空區的具體位置,在此基礎上對場地進行工程適宜性評價,對整個工程建設具有重要的指導意義。本論文在總結前人對地下采空區勘察及有關穩定性研究方法的基礎上,以山西大寧煤礦鐵路專用線五龍溝1 ~ # 、 2 ~ #隧道采空區為研究實例,在詳細的地表工程地質調查和測繪的基礎上,結合通過對采空區有關人員的探訪,首先對主要開采礦層的空間展布進行地質判斷;然後採用國內外較為先進的工程勘探與檢測儀(簡稱「面波儀」 ) ,對1 ~ # 、 2 ~ #隧道中線兩側一定范圍內(共40米)進行了面波測試,對采空區的可能出露部位進行了較為準確的判斷;最後通過鉆探加以驗證,表明面波儀的測試結果是較為合理可信的。Taking erectophile type continuous vegetation as a example, authors had done many monte carlo simulations, and established empirical analytic expressions of radiances with component temperature, soil emissivity and leaf area index. empirical analytic expressions were used to construct objective function and genetic algorithm was employed to synchronously retrieve 5 parameters, such as component temperature, soil emissivity and lai, from thermal infrared 2 channels and 2 angles data. many experiments of genetic algorithm inversion from simulated data were conducted, results show that it is very robust to retrieve component temperature using genetic algorithm ; genetic algorithm can cope with uncertainty inversion problem pretty well if full advantage of priori knowledge was taken. comparison between inversion results and ground - truth data has been done. this paper offers a new example to retrieve component temperature from multi - channel, multi - angle thermal infrared data based on the model of directionality of thermal radiance
在熱輻射方向性規律的基礎上,以喜直型連續植被為例,進行了大量的monte carlo模擬,建立了輻射亮度和組分溫度植被葉面積指數及土壤比輻射率之間的經驗函數關系。採用遺傳演算法,從熱紅外2個波段2個角度數據中,同時反演混合像元組分溫度土壤比輻射率和葉面積指數等5個參數。通過對模擬的觀測數據進行大量的遺傳演算法反演試驗,結果表明,遺傳演算法反演組分溫度非常穩健,在寬松的先驗知識條件下,遺傳演算法可以解決不確定性反演問題。Test methods for saw properties of piezoelectric ceramics and crystals
壓電陶瓷材料和壓電晶體聲表面波性能測試方法In order to solve the problem how to get expert knowledge and how to detect fault, a new settlement is presented in this paper, which is based on simulation. in the beginning of this paper, the writer introduces some conception of conventional expert systems, and analyzes its localization or disadvantage. according to the special of electronic devices, artificial intelligent fault detecting system of a certain radar based on simulation is put forward ; the paper gives the detail of the top bottom design for an example, and gives the solution for remote diagnosing in internet
本文主要試圖解決這么幾個問題:面向故障診斷進行模擬建模;對模擬模型進行故障注入,獲取故障模式,從而獲取系統全面的專家知識;採用模糊神經網路對這些知識進行規約和抽象;採用模糊聚類演算法對專家知識進行診斷現場的融合;採用虛擬儀表獲取信號數據,運用小波變換等提取故障徵兆,實現故障的診斷和預測;基於模擬模型構建嵌套推理演算法,實現模擬故障排除訓練和考核,分析崗位人員對原理的掌握情況。With nd : yag laser, the surface acoustic wave pulses were generated on the sample of aluminium and silicon. well - defined waveforms have been acquired. the results show this technique have advantages such as high frequency responding, high signal - to - noise ratio
對nd : yag固體激光器在鋁和硅材表面激發的聲表面波脈沖進行了系統的實驗測試,結果得到了良好的波形,此法相對于其他光學方法具有頻響高,靈敏度高,線性較好的諸多優點。Two kinds of microwave surface resistance rs measurements of high tc superconductive thin films are introduced in this paper, two - resonator method and the sapphire resonator method
本文介紹了兩種測試高溫超導薄膜微波表面電阻的方法:雙諧振器法和藍寶石介質諧振器法。The sapphire resonator method studied in this paper is used to apply for the national measurement standard of rs for high tc superconductive thin films, in which the rs value of hts film can be determined by measuring the change of the unloaded quality factors of the loaded resonator
在國內,本論文研製的藍寶石介質諧振器法正在申請高溫超導微波表面電阻rs國家測試標準。此法通過測量加載超導薄膜后介質諧振腔的固有品質因數的變化來確定超導薄膜的微波表面電阻。Sapphire resonator working in te011 + mode is used in this paper to nondestructively measure the microwave surface resistance rs of a single piece of hts thin film at 77k. the microwave surface of htsc film under test can be determined by measuring the change of the unloaded quality factors of the loaded resonator
本文就對超導薄膜的微波表面電阻的測試進行了系統的研究。本文介紹了一種利用te011 +模式的藍寶石介質諧振器測量高溫超導薄膜微波表面電阻的方法,通過測量加載超導薄膜前後介質諧振腔的固有品質因數的變化來確定超導薄膜的微波表面電阻。Two - resonator method is using to build the draft of international measurement standard of rs for high tc superconductive thin films, in which the rs value of the hts films can be determined by unloaded q ’ s measured from two resonators by using simple formulas
目前,國際上用雙諧振器法建立高溫超導薄膜微波表面電阻rs國際測試標準草案。此法是基於模式匹配方法,通過嚴格的推理得到簡單的方程,從諧振器的諧振頻率和固有品質因數可以求出超導薄膜的rs 。The filter takes the advantages of low cost, small in size, light in weight, etc., and can easily be integrated into microwave and millimeter wave integrated circuits firstly, the ltcc technology was introduced and a test circuit based on the resonate method of microstrip ring was designed to test the performance of ltcc for dielectric constant and loss
這種濾波器具有體積小,便於集成的特點,也適用於表面貼裝。先是對ltcc工藝及材料做了基本介紹,並採用微帶環諧振法設計了一個ltcc工藝性能測試電路,對ltcc成品的介電常數、損耗和q值進行測試。On the basis of comparing present detection techniques, we propose a new optical beam deflection technique with a single fiber. the correspond fiber sensor has been completed
在比較了已有的各種測試聲表面波手段的基礎上,提出了基於光偏轉技術的單光纖測試法,並設計完成了一套光纖光聲傳感器。分享友人