漏磁系數 的英文怎麼說
中文拼音 [lóucíxìshǔ]
漏磁系數
英文
coefficient of dispersion-
The influence of separating magnetic flux method of rotor with u ' s and tangential permanent magnet to the pole - to - pole leakage factor is analyzed by finite element method ( fem ), and given the rule of design
通過對pmsm進行電磁場求解,分析了u型結構和切向結構轉子磁路結構的隔磁措施對電機極間漏磁系數的影響,提出了設計準則。For the convenience of testing, sampling software was programmed using vc + + 6. 0 through computer. this software can control the scanning device to move in various ways, and can take real - time data from gauss meter by rs232. now, weak magnetic measurement system has been completed
又利用vc + + 6 . 0編制了軟體,控制掃描架按照多種方式進行掃描,將高斯計測得的漏磁場數據實時採集到數據庫中,組成了一套可精確定位、自動採集數據的弱磁場測量系統。And the subroutine is developed to add the periodic condition in the commercial 3d fem software. 3d electromagnetic field analysis is done to analyze the magnetic flux distribution in the tfpm. base on the field analysis, the mathematical model is given
採用簡化的三維電磁場計算方法對橫向磁通永磁電機內部磁通分佈進行了研究,計算了各部分的磁通密度分佈和漏磁通的走向,得到了電機的空載漏磁系數及空載反電動勢以及主要的漏磁通分量。Based on the analysis about the test requirements and the saturated magnetization of the armor plate, the excitation magnetic circuit satisfying the testing condition and a validation system are designed. because the geometric, of the magnetic leakage at the direction of the normal of the roundness fault has the feature of two peaks : a positive and a negative, using the linear regression and the software matlab, two regression equation are proposed : one is about the peak value of the magnetic leakage and the diameter and depth of the roundness fault ; the other is the distance between the two peaks and the diameter of the roundness fault. the result of the validation system proves that the two equations are valid, and an applied method using for quantificationally inspecting the roundness faults is proposed according to the two equations
根據實驗要求,通過對鋼板達到飽和磁化的必要性進行的分析,設計了符合試驗條件的勵磁磁路,並設計了一套實驗驗證系統;根據圓形缺陷法線分量漏磁場幾何圖形正負雙峰值的特點,採用線性回歸擬合的原理和matlab軟體及其統計工具箱中的相關函數,給出了圓形缺陷漏磁場幾何圖形的峰峰值與圓形缺陷的直徑和深度以及峰峰值間距與圓形缺陷直徑的兩個回歸擬合方程,並通過實驗驗證系統驗證了擬合方程的正確性,利用這兩個簡單實用的擬合方程,提出了一種工程定量檢測圓形缺陷的應用方案。Considering the effects of saturation, pole shape, some important coefficients including the effective pole - arc coefficient, the leakage coefficient, the air - gap coefficient are analyzed by electromagnetic method, and a series of useful curves are given
考慮磁路飽和、磁極形狀等因素的影響,利用電磁場數值解法對電磁計算中的有關系數,包括漏磁系數、計算極弧系數、氣隙系數等進行了分析研究,給出了工程實用的曲線。This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically
論文針對管道(鋼管)缺陷漏磁檢測定量化、智能化的難題,緊密結合檢測現場實際需要,通過理論分析和大量實驗,系統分析總結了管道(鋼管)缺陷漏磁智能檢測技術,並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外形參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場波形特徵提取和缺陷外形尺寸定量識別等方面進行了深入研究,主要成果和創新如下:引出磁偶極子模型近似分析常見缺陷漏磁場,針對磁偶極子模型的不足,將有限元方法應用到缺陷漏磁場分析,實現了常見管道樣本缺陷漏磁場的模擬。2. although calculating magnetic - flux leak coefficient and magnetic - reluctance coefficient is too complex to be done, combining magnetic force pump alnico ' s characters, appropriate accounting models are selected to calculate these coefficients through magnet conductivity methodology, the equation has been induced
雖然漏磁系數和磁阻系數的計算非常復雜,利用磁導法,結合磁力泵磁鋼排布特點,選擇適合磁力聯軸器特點的計算模型,給出了漏磁系數的計算公式。The researcher could use the ansys software to design and analyze the motors who did n ' t know the ansys software very well by the special purpose software packets. the influence of a centralization winding brushless dc motor structural design parameter and magnetic field were analyzed, and a way to achieve the fix position angular force was brought out
利用上述軟體研討無刷直流電機的定位轉矩的求取方法;分析集中式繞組的無刷直流電機各結構設計參數對磁場的影響,嘗試求取、分析空載漏磁系數,討論如何削弱定位轉矩。In addition, we study the digital signal processing in the testing system of two dimensions magnetic flux leakage
另外本文還對在二維漏磁檢測系統中數字信號的處理作了一定的研究。However flux leakage is really exist, calculation through formular analytic method has more error, so electromagnetic field analysis is made by using finite element method ( fem ) in ansys7. 1 / multiphysics and ansys / emag programs. typical quantities of interest in a magnetic analysis are available such as magnetic flux density, magnetic field intensity, magnetic forces, power loss and flux leakage in the system of magnetic levitation. then gain the current in the coil which control levitation gap when the stage is stable
由於存在漏磁,用公式的解析法計算有很大的誤差,因此本文採用有限元法( fem )來計算磁懸浮系統磁場分佈,從而計算磁力,通過用ansys7 . 1軟體進行有限元電磁場分析計算,得到平臺穩定懸浮時電磁線圈所需電流、懸浮氣隙等控制參數,由於設計的磁懸浮系統為非軸對稱結構,採用2d磁場分析有一定的誤差,而採用3d電磁場分析更接近實際。Magnetic leakage factor
磁漏系數The controller takes full advantage of the features of ti tms3201f240xa processor, such as high performance processing capabilities, plenty of peripherals on chip and high real time control. by the vital of these features the fast ac sampling, synchronic pulse, digital shift phase trigger pulse, can bus communication, pid control method and excitation limitations are realized. the pretreatment of the switch signals and the test of the shift phase trigger pulses are realized by using the complex programmable device ( cpld )
該勵磁控制器充分發揮了tms3201f240xadsp處理器的強大的數據運算能力、豐富的片內外設資源和較強實時控制能力,用單片系統結構實現了快速交流采樣,數字同步脈沖形成, can現場總線網路、以及pid控制演算法和各種勵磁限制等功能;用cpld器件實現了開關量抖動預處理和可控硅觸發脈沖遺漏的檢測,減輕了dsp處理器負擔,提高了勵磁控制器可靠性、抗干擾能力和控制能力;使用vc + + 6 . 0開發的基於windows操作系統的勵磁系統調試軟體,人機界面簡潔友好,使用操作靈活方便。The intelligent inspection system of pipeline is established and the project database is designed, the interpolation and signature map of defect mfl signal data are solved effectively, the feature automatic extraction and intelligent evaluation of geometric parameters of the defects are shown and proved practical ; the whole process of pipeline inspection are given step by step, these results and conclusions help improve the pipe defect recognition and solve some difficult problems in the field of pipeline mfl inspection
建立了管道(鋼管)缺陷漏磁法智能檢測和數據分析系統,設計了系統工程數據庫,實現了缺陷漏磁場數據的插值和圖像處理,完成了缺陷漏磁場特徵自動提取和缺陷外形尺寸的智能識別,給出了管道缺陷漏磁檢測的整個步驟和過程。這一切解決了國內管道漏磁檢測的定量化、智能化的難題,補充了國外管道漏磁檢測的不足。分享友人