零點測試法 的英文怎麼說

中文拼音 [língdiǎncèshìfǎ]
零點測試法 英文
null test method
  • 零 : Ⅰ數詞1 （零數） zero2 （數的空位） zero sign （0）; nought 3 （表示沒有數量;無） nil; nought 4 （...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 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...
  • 零點 : null point; zero end; zero point; zero; zero hour; null （函數或曲線的）零點標準（額） the nil no...
  • 測試 : test; testing; checkout; measurement
  1. 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。
  2. The author is absorbed in research on technology of coprocessor design. in the floating - point addition the paper proposes a carry chain of dynamic and static mixed circuits and a good balance between speed and area of predicting leading - zero logic circuits, considering algorithm and construction of logic circuits. an approach of micro program controller design for coprocessor is put forward and a test bench is given to verify its function

    筆者研究協處理器的設計技術，在浮點加法器中提出動態與靜態結合設計進位鏈的方案以及前導零預測面積與速度的折衷方法；在微程序控制器的設計中提出一種協處理器微程序控制器的設計方法，並且給出其功能驗證的測試平臺。
  3. The traditional level measuring methods can n ' t meet our demand because the subjective investigated is in such a poor systemic condition that the temperature is a little high and there ' s so many mill dust and steam there. in this article we perform systemic discuss and research against the dynamic level measuring method under special working condition on the basis of analyzing kinds of level measuring technique in and abroad. first we establish the pressure distribution mathematic model in storage bin and then deduce the mathematic relation between level height and the uniform stress on the bottom of the bin and designed a resistance compressive stress sensor used for the special condition and put forward a resoivement according to its zero excursion existing in practical use

    由於本研究系統被測對象環境溫度較高且潮濕，同時料倉中有大量粉塵及蒸汽，因此傳統的料位檢測方法不能滿足本測試要求。本文在分析國內外各種物位檢測技術的基礎上，針對特殊工況下動態物料高度的檢測進行了系統的探討與研究。首先建立了料倉中的壓力分佈數學模型，推導出料位高度與倉底均布壓力間的數學關系式，並據此設計了中溫電阻應變式壓力傳感器，同時對它在實際應用中存在的零點漂移等問題提出了改進措施，提高了傳感器性能，解決了上述特殊工況下動態物料檢測的技術難題。
  4. Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods

    以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。
  5. Methods of designating on component parts and points of containers when testing

    集裝箱各測試點和零件試驗時的標識方法
  6. The working principle of pulsed eddy current ( pec ) nondestructive testing technology is analyzed, the pec testing system was been established to examined the specimen of multi - layered aircraft structure, peak and zero - crossing time of the time domain transient response signal of pec are extracted as the features to detect the corrosion in the second layer of aircraft structure quantificationally, the experiment results are consistent with that of the theory analysis, as the pec have the advantages of fast speed and quantification, this makes the method have the broad using foreground in the testing of aircraft structure corrosion

    摘要對脈沖渦流無損檢測技術的工作原理進行了分析，建立了脈沖渦流的檢測系統對加工的模擬飛機多層結構的試件進行了測試，提取其時域瞬態感應信號的峰值和過零時間作為特徵量，對出現在飛機多層結構第二層中的腐蝕缺陷進行了定量檢測，試驗結果和理論分析相一致，證明了脈沖渦流檢測方法的有效性，由於其具有快速和定量化的優點因而在飛機結構的腐蝕檢測中具有廣闊的應用前景。
  7. The volume of sweeping is calculated for evaluating the necessary assembly space. in chapter 4, several characteristics of collision detection are clarified. based on layered envelops bounding box and subdividing the set of the possible interference components step by step, swiftly dynamic interference checking is carried out

    第四章分析了虛擬裝配中干涉檢測的特點，通過不可能干涉對象的快速篩選、基於零件級和裝配體級多層次包圍盒樹的方法、通過基本幾何元素之間精確相交測試，實現了零件靜態干涉檢測、運動零件與虛擬裝配環境中環境對象間的動態干涉檢測方法。
  8. In this paper, a size detecting system, which based on the machine vision technology and image process method has been developed. this system can be applied to the notched impact specimens ’ product line. the main research as follows : according to the request of the notched impact specimens ’ on - line detecting and the feature of machine vision system, on - line detecting system of the notched impact specimens ’ dimension and shape designed by using the technique of image acquisition, display, processing and analysis, which includes the structure design of the system, the configuration of the hardware, the comparison image of image processing, the design of the software and the final error analyzing

    本文以機器視覺技術為基礎，以圖像處理技術為方法，針對機械加工的特殊條件，開發了用於沖擊試樣零件生產線的尺寸檢測系統，本文主要研究了以下內容:針對沖擊試樣在線檢測的研製要求，結合機器視覺系統的功能及結構特點，利用圖像採集、顯示、處理和分析技術，完成了沖擊試樣尺寸在線視覺檢測系統的設計，包括系統的總體結構設計、硬體配置、圖像處理方法比較分析、軟體設計及誤差分析等。
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