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- The display system "looks" for the zero crossing of the sync pulse. 終端顯示系統將識別這個同步脈衝的過零跳變。
- The BEMF zero crossing comparators are disabled during open-loop sped-up until the target velocity is reached. 反電動勢的過零檢測開始是沒有被使能的,直到電機轉子的速度達到了一定的速度。
- LFMCW radar nonlinear residual frequency errors zero crossing detection periodogram. 標 簽 LFMCW雷達 非線性剩餘頻差 過零檢測 周期圖.
- Wavelet transform zero crossing detection method can be used for the coding and recognition of human iris. 使用小波變換過零檢測演算法可實現人眼虹膜圖像的編碼和識別。
- May include some or all of the following: SAG and Peak detections, Peak level recording, Line Period measurement and Zero Crossing Detection. 可能包括下列功能中的部分功能或者全部功能:SAG及峰值檢測,峰值記錄,周期測量及過零檢測。
- And it searches much further for the unvoiced frame according to the ZCR(zero crossing rate),which is differ from unvoiced frame to background frame. 根據背景音和靜音過零率的不同,進一步搜索符合要求的靜音幀;
- When the target velocity is reached, the BEMF zero crossing comparators are enabled before leaving the open-loop speed-up subroutine. 到這時,反電動勢過零比較電路才開始工作直到電機啟動結束。
- The conventional back-EMF zero crossing method was restricted by hardware and control method,and to improve the detecting circuit reduce the influence. 常規反電勢過零檢測電路由於受到硬體及控制方法的影響,過零點信息不夠準確而且有較大的滯后,通過對檢測電路的改進來減小這種影響。
- With Brushless DC(BLDC) motor to control special MCU, and ?the technology of zero crossing of back-electromotive force (BEMF),it achieves the control of BLDC's sensorless. 採用專用的無刷直流電機控制單片機,應用反電動勢過零檢測技術,實現無刷直流電機無位置感測器的控制。
- The zero crossing signal of the true phase back EMF can be directly obtained from the motor terminal voltage by properly choosing the PWM and switch control strategy. 該方法不需要引出電機中性點,通過選擇PWM和導通控制策略,就能直接從電機端電壓獲得反電勢過零點信號。
- SUONAN Jia-le,GE Yao-zhong,WANG Ding-an,et al.A new frequency measurement algorithm uninfluenced by zero crossing of voltage[J].Proceedings of the EPSA,1996,8(4): 19-21. [1]索南加樂;葛耀中;王定安;等.;一種不受電壓過零點影響的新型頻率測量方法[J]
- The performances and characteristiss of the zero crossing digital demodulation is ana lysed through the comparison of various ways of Fsk signal digital demodulation. And ideal conclusion is reached. 對各種頻移鍵控信號的數字解調方法進行了研究和比較,並重點分析了零交點數字解調法的性能特徵,最後得出了一個最佳結論.
- Abstract: The performances and characteristiss of the zero crossing digital demodulation is ana lysed through the comparison of various ways of Fsk signal digital demodulation. And ideal conclusion is reached. 文摘:對各種頻移鍵控信號的數字解調方法進行了研究和比較,並重點分析了零交點數字解調法的性能特徵,最後得出了一個最佳結論.
- Hall sensors are mounted in such a way that the zero crossing of the BEMF occurs as close as possible to the zero crossing of the Hall sensor signal associated with the corresponding coil. 對於霍爾感測器而言,其安裝位置的出發點要盡量使得各繞組對應的霍爾元件產生的信號的過零點與反電動勢的過零點位置接近。
- The control circuit made up of double monostable circuit IC has realized some remarkable functions, such as cycle control, zero crossing trigger, and preventing from repeated and error trigger. 所設計的控制電路,利用雙單穩電路IC,實現了點焊過程周波控制、過零觸發,以及防重觸發和誤觸發功能,保證了焊接過程穩定、可靠。
- Discrete-Time Hilbert transformer (12) isolates the only the positive spectral peaks, thus yielding a VAC signal that affords greater control over zero crossings. 一離散時間希爾伯特變換器(12)僅分離正的頻譜峰值,由此產生一VAC信號,該信號對過零點提供良好的控制。
- The mercury dived to ten below zero. 溫度突然下降到零下10度。
- SCR zero crossing triggering pulse output SCR可控硅過零觸發脈衝輸出
- Zero crossing forecast of synthesize test circuit 合成試驗迴路的電流源電流零點預測
- It is rash to cross the street without looking both ways. 不朝兩邊看看就穿馬路是莽撞的。