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關(guān)于labview電子秤的外文翻譯--與labview相關(guān)的電子測量-外文文獻(xiàn)-文庫吧資料

2025-05-22 16:04本頁面
  

【正文】 In the previous work, the authors have analyzed the LabVIEW environment capabilities for efficient implementation of cryptographic algorithms [1]. The next phase of the work, described in this paper, is to develop new mathematical tool for LabVIEW environment a Large Number library (also known as Big Integer or arbitrary length integer library). This library allows for the putation on numbers with arbitrary (within the limits of available memory) number of decimal digits, far exceeding the typical representation in puter systems (32 or 64bit). Large numbers are widely used in many popular cryptographic algorithms, including RSA, Rabin or ElGamal publickey encryption systems, used for both, data encryption and the generation of secure digital signatures [2,3]. The LN library in addition to basic arithmetic operation includes operation modulo N in the suitable rings or finite bodies, functions for calculating the opposite element in such algebras and primality test algorithms. 2. Power Measurement in SinglePhase AC Circuits The instantaneous power [1,2,3,4] to an electric dipole is defined as the product of the instantaneous values of the voltage (u) to the terminal of the dipole and the current (i) that flows through the dipole: P=ui (1) The instantaneous power can be classified into input and output power, depending on the association of the voltage (u) and the current (i), which respects the rule of receivers and generators. In a sinewave steadystate with the T period, the active power (P) can be defined as the average value of the instantaneous power, considering a natural number of periods: For a singlephase circuit which functions under a sinewave permanent rate, in which the voltage and current have the following expressions: it results: the active power: P = UIcos? the reactive power: Q = UIsin? (5) the apparent power: S = UI The plex apparent power (S) is defined into the simplified plex representation as the product between the plex voltage (U) and the conjugate plex current (I*): The real part of the plex power (S) is the active power (P), the imaginary part is the reactive power (Q), the module is the apparent power (S) and the argument is equal to the phase displacement (?) of the circuit: For a singlephase circuit which does not function in sinewave rate [4] and has the terminal voltage u(t): there can be defined: the active power: the reactive power: the apparent power: S=UI (11) By taking into account the relations above, we can notice that S 178。儀器的靈活性方面,包括在測量過程中的其他業(yè)務(wù)(分析,操作自動化,訪問數(shù)據(jù)的基礎(chǔ)上,發(fā)送在互聯(lián)網(wǎng)上的數(shù)據(jù)等),在減少操作方面成為可能性。這些應(yīng)用程序可以被用于研究功率的測量方法(學(xué)生 /人員培訓(xùn),因為修改電路參數(shù)的能力和效果顯示)和執(zhí)行高精度測量。 圖 4 數(shù)據(jù)采集系統(tǒng) 框圖 對于三相電路包含的中性導(dǎo)體數(shù)為( N= 4),廣義定理將會改變成: 在這種情況下,總的有功功率可以使用 4 瓦特計算法(一個隨機(jī)值將會考慮給到將會出現(xiàn)潛在的 N 點(diǎn)),或者使用 3 瓦特計法(如果存在潛在的 N 點(diǎn),是等于一個衡量中性導(dǎo)體)。 替代三相電路有以下電壓系統(tǒng): 如果電壓系統(tǒng)提供了一個三階段的平衡接收機(jī),當(dāng)前的系統(tǒng)將是: 如果相位阻抗是不同的,那么接收器是不均衡的,從源頭上吸收的電流可以與有關(guān)星型三相連接的平衡接收機(jī)的方法計算,它的結(jié)果是: 關(guān)于中性導(dǎo)體阻抗( Z0)的值,電壓的值將會是: 數(shù)據(jù)采集系統(tǒng)的方塊 框圖如圖 4 所示。 注釋:圖中的電壓值和用戶設(shè)置的參數(shù)在圖 3a ,引入模擬(圖 1)實現(xiàn)了應(yīng)用程序的功能。所 采用的解決辦法是在霍爾效應(yīng)的基礎(chǔ)上使用電壓和電流的傳感器。分壓器和分流的使用必須要考慮通過分壓器的電流,分流,功耗,寄生電阻,自熱效應(yīng),動態(tài)效果上的電壓降。相 /線電壓,電阻分壓器(不保證電氣隔離)或電壓測量變壓器(確保電隔離)都可以使用。 圖 1 單相交流電路的操作和功率測量 模擬 數(shù)據(jù)采集板是一個復(fù)雜的系統(tǒng),它使用傳感器在允許的工藝參數(shù)進(jìn)行測量和監(jiān)測,它可以轉(zhuǎn)化成電能的電壓研 究物理措施 [1,3,4,6,7]。變形的概念,因此可以推出 : 下面的應(yīng)用程序(圖 1)通過使用 LabVIEW 圖形化編程環(huán)境,對所現(xiàn)在提出的理論思考的基礎(chǔ)上可以實現(xiàn)實現(xiàn) [2,5,6,7],當(dāng)前的圖形顯示中可以允許顯示電壓隨時間的變化,瞬時的有功功率?!貾 178。 2.單相交流電路中的功率測量 在交流電路中提供的動力 電偶極子中的偶極子和電流( I)的瞬時功率 [1,2,3,4],通過偶極子流動終端產(chǎn)品的電壓瞬時值( U)定義為: p=ui ( 1) 瞬時間發(fā)生的功率可分 為瞬時輸入功率和瞬時輸出輸出功率,瞬時功率取決于瞬時總電壓( U)和電流( I),符合接收者功率和發(fā)電機(jī)功率相同的規(guī)則。這樣一 個解決方案的效率可能是和類似的版本相當(dāng),使用外部軟件模塊的快速算法和一些代碼的優(yōu)化步驟進(jìn)行。實現(xiàn)的功能進(jìn)行了測試,測試的結(jié)果是導(dǎo)致以下結(jié)論。該論文的主要目標(biāo)是提出新的 LabVIEW中的大數(shù)庫,這是為進(jìn)一步落實具體的非對稱算法,如 RSA 或拉賓加密系統(tǒng)所必需的數(shù)學(xué)工具。 這些工具將使 DMCS 的發(fā)展成為一個用簡單而直觀的方式所設(shè)計的安全系統(tǒng)的機(jī)會。顯示了 DMCS 軟件的巨大的作用,并提出需要制定一些這樣的系統(tǒng)加密工具的方法。在最后一節(jié),我們完成我們的工作和給予的建議,為進(jìn)一步開展工作
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