constant direct current 中文意思是什麼
constant direct current
解釋
恆定直流-
The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization
其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。 -
Electronic no - grade timing, automatic constant temperature, alternating current ( ac ) contactor controlling, direct spray cooling machine, hot air machine which can be adjusted 1 - 3 gear, and it is stabilization and reliable, long life and less noise
電子無級調速，自動恆溫，交流接觸器控制，直射冷卻風機，熱風機可調1 - 3擋，穩定可靠、壽命長、低噪音。 -
In this paper, constant frequency epgs and high voltage direct current ( h vdc ), as an example, is simulated
本文是以恆頻交流電源系統和高壓直流電源系統為例來進行建模和模擬。 -
As the system is regarded as being excited by a constant direct current at the data acquisition point, no complex ac circuit such as filter is required. it can improved the rate of data acquisition and simplify the circuitry of ert system
由於系統採用了直流脈沖信號作為系統的激勵源，后續的信號處理電路就可以直接獲得測量結果，無需復雜、耗時的濾波電路，這就消除了濾波器這一限制數據採集速度提高的「瓶頸」問題。
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