earth loop 中文意思是什麼
earth loop
解釋
地線迴路-
Radar altimeter is a kind of very important microwave sensing instrument for observing the earth, and there are a lot of key technologies involved in the high resolution spaceborne radar altimeter ( hrsbralt ). the principle of hrsbralt, the acquisition and track methods, the if simulation, the closed loop internal calibration method, the pulse repeat frequency ( prf ) design, and the ocean - land compatible altimeter design are studied in this dissertation
雷達高度計是一種重要的微波遙感儀器，本文就高解析度星載雷達高度計的工作機理、跟蹤方法、大時帶積在軌閉環內校準以及海陸兼容等內容進行了深入的研究，具體包括以下八個方面的內容： （ 1 ）深入研究了星載雷達高度計的工作機理，並對典型雷達高度計系統進行了分析。 -
This powerful negative feedback loop would have tended to stabilize earth ' s temperature and atmospheric composition at exactly the point at which the layer of organic haze began to form
如此強大的負回饋循環，有助於穩定地球的溫度與大氣組成，使其精準維持在有機霾層形成之初的狀態。 -
Earth loop impedance above permissible value
接地環路阻抗超出容許數值。 -
Earth loop impedance test
接地阻抗測試 -
Earth loop tester
地線系統測驗器 -
Realize the earth has magnetic field lines that loop out into ace from the northern hemi here to the southern hemi here ， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras
要知道，地球上的磁場線以環形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風暴的作用形成了極光。 -
This paper investigates the propagating characteristics of the layered earth in a loop antenna case, the result can be served as a helpful guideline for the system design and application
對環狀發射天線情形下分層大地的有關通道特性進行了探討，以期為該系統設計及工程應用提供有益的指導。 -
Essential requirements for connection of terminal equipment to 2 - wire analogue interfaces, without capacitive termination, of public switched telecommunication networks using either the earth calling, the loop calling - disconnect clearing, the loop calling - guarded clearing or the loop calling - unguarded clearing signalling method
使用地面呼叫，無連接清零，防護清零或無防護清零任何一種信號方法的公共開關電信網路雙線模擬介面 -
Realize the earth has magnetic field lines that loop out into space from the northern hemisphere to the southern hemisphere ， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras
要知道，地球上的磁場線以環形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風暴的作用形成了極光。 -
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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