頻率階躍 的英文怎麼說
中文拼音 [bīnlǜjiēyuè]
頻率階躍
英文
frequency step-
At first, the dynamic mathematic model is created in the light of the known dimensions and structure. then base on the mathematic model, dynamic analysis of the system is studied by drawing the open - loop bode diagram closed - loop bode diagram and step response curve using the analysis and calculating function of matlab. the influence factor on frequency character steady and performance of the system is also analyzed
首先，根據已確定的尺寸參數和結構需要，計算並建立起系統的動態數學模型，然後在已知系統數學模型的基礎上，利用matlab語言強大的分析計算功能，對系統進行動態分析，通過畫出系統的開環bode圖、閉環bode圖及系統的階躍響應曲線，分析了系統的頻率特性、穩定性及系統性能的影響因素。( 3 ) it proved that the factors such as technology, market, management, fund and policy environment make different impaction on the result of the valuation of the investment opportunity of hi - tech enterprise during different developmental phases. ( 4 ) the competition intensity, the time lag of investment and the riskless rate make great negative impaction on the option value of hi - tech enterprise. ( 5 ) the conclusion of analysis achieved from which the varieties of the market supply and the market demand make impaction on the result of the valuation accord with the conclusion of analysis achieved from which the varieties impact to price on economics
本文的主要研究成果如下： （ 1 ）投資機會價值在高新技術企業價值評估中佔有重要的地位； （ 2 ）在提出的投資機會價值評估模型的基礎上，結合實際，深入探討隨機跳躍頻率下的評估結論對投資決策的影響； （ 3 ）從定性和定量兩個角度系統地說明了技術、市場、管理、資金及政策對評估結論的影響程度是隨著企業發展階段的不同而不同； （ 4 ）證明了外部競爭強度、投資的時滯和無風險利率對企業的期權價值評估產生極大的負影響，即外部競爭強度越強、投資的時滯越長和無風險利率越大，企業的期權價值就越低，反之就越高； （ 5 ）市場需求和供給的分析結果與從經濟學上的供需對產品價格的影響結論是一致的。The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )
硬體電路設計包括：工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路（恆流源電路、時基信號處理電路、被測信號處理電路）設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括：主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號，並對三種不同測試狀態（靜態、動態、暫態）下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。It really provides convenience to evaluate and optimize the design result. 3 ) vibration analysis has been fulfilled by calling some math libraries and graphic libraries in matlab to plot graphics such as velocity - time, displacement - velocity, step response, impulse response, gain - frequency and phase - frequency. we can know the capabilities of the spring system from the graphics
3 、在matlab環境下調用相應的數學函數庫和圖形庫對設計的彈簧進行分析，繪制彈簧加載后系統的速度-時間響應曲線、速度-位移響應曲線、階躍響應曲線、脈沖響應曲線、增益-頻率響應曲線和相角-頻率響應曲線，根據曲線來分析系統的各項性能。Secondly, introducs the main theory of sir ( stepped impedance resonator ), some characteristic of the sir has been discussed, such as resonance conditions, resonator length, spurious ( higher order ) responses, and equivalent circuits
其次，介紹了階躍阻抗諧振器（ sir ）結構和相關原理，同時系統的討論了sir一些基本特性如:諧振條件、諧振長度、雜散頻率和等效電路等。This provides new clew for making the controller ' s parameters of pump - control - motor speed governing system with inverter certain. ( 4 ) the performance simulating in time domain and open loop step experiment of pump - motor speed governing system with inverter are made, and the rules of parameter change affecting response performance are obtained. the theoretic references are provided to improve the system ' s performance
（ 4 ）對主要參數對變頻泵控馬達調速系統的性能影響進行了時域模擬分析和開環階躍響應實驗研究，得到了參數變化對響應性能指標的影響規律，為提高大功率大慣性變頻泵控馬達調速系統的性能指標提供了參考理論依據。分享友人