period measurement system 中文意思是什麼

period measurement system 解釋
定期測量系統
  • period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique

    由於電網中存在大量的諧波干擾，導致測量系統中取樣信號也含有很大的諧波，為了消除諧波對測量結果的影響，論文深入研究了傅立葉變換諧波分析法的測量原理，分析了測量中頻譜泄漏和柵欄效應形成的原因，提出了採用鎖相環倍頻技術實現信號的整周期同步采樣，消除頻譜泄漏和柵欄效應對測量結果的影響，並對鎖相環倍頻技術的理論進行了深入研究，給出鎖相環倍頻技術的實現方法。
  2. Course contents ( containing practice period ) : introduction to the course ; basic function of cells ; breath ; blood ; blood circulation ; digesting and absorption ; energy metabolism and body temperature ; the excretion of kidney ; sensory organs ; nervous system ; endocrine system ; urogenital system ; physical constitution ; change of physiological function of human body in each sports stage ; lung ' s function measurement ; blood type test ; hemoglobin measurement ; auscultation of heart sounds ; measurement of blood pressure ; electrocardiogram measurement ; measurement of visual field ; measurement of body temperature ; cardiovascular function test before and after sport

    課程內容（含實踐活動） ：緒論、細胞的基本功能、呼吸、血液、血液循環、消化與吸收、能量代謝和體溫、腎臟的排泄、感覺器官、神經系統、內分泌、生殖、身體素質、運動各階段人體生理功能的變化、肺功能測定、血型鑒定、血紅蛋白測定、心音聽診、血壓測定、心電圖測定、視野測定、體溫測定、運動前後心血管功能變化。
  3. The reliability of measurement system is redefined, and new methods are presented to evaluate the reliability, the calibration and verification period using dynamic uncertainty based on the analysis stated above and the characteristic of measurement systemquantum transformation, which makes the separation actuality of quantum analysis and reliability analysis of measurement system to an end

    基於前面的分析及測量系統進行量值傳遞的特點，對測量系統的可靠性重新進行了定義，提出了採用動態不確定度對測量系統的可靠度、校準或檢定周期進行評價的新方法，從而結束了目前測量系統量值分析與可靠性分析脫離的現狀。
  4. Integrated virtual experiment & measurement technology ( ivemt ) for distributed department of product is a synthesized technology, which can achieve exp - erimentation and measurement of multi - system cooperating or single - system at the local or at the different section. it was an important technology to improve synthesized capability of experiment and measurement industry research project, to shorten research period. as key technology of the advanced industrial technology, the commission of science technology and industry for national defence has listed it in the basic research project for national defence of the " tenth - five project "

    分散式協同綜合虛擬試驗與測試技術（ ivemt ）是一項能夠實現本地或異地不同部門的多系統或整機試驗與測試要求的綜合技術，對提高試驗與測試行業的綜合能力、縮短產品研製周期等具有重要意義和作用，已被列入國防科工委「十五」國防基礎研究計劃的先進工業技術研究領域的重要課題。
  5. The technology of micro - electronics and calculation method was fully made in the system. how to improve the accuracy of standard orifice measurement is also discussed from the following aspects : the means of measurement and transmitter, online correction of measurement parameter and abnormal condition. all those means are used to overcome its shortcomings of less scale of measurement range, short period of checkout, more tache of maintenance and low accuracy of measure

    該系統充分利用微電子技術和計算技術以及通過實際現場總結的經驗，主要從測量與變送環節採取的措施、相關參數的在線實時補償演算法、非正常情況的在線補償三個方面對如何提高量精度加以論述，盡可能地彌補孔板差壓式流量計量程比較小、檢定周期短、維護環節多、準確度低的不足。
  6. In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system

    在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
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