lower-cut-off frequency 中文意思是什麼
lower-cut-off frequency
解釋
下限截止頻率-
From simulation we can see that the lower of the digital low pass filter ' s cut off frequency, the smaller of the instruction current ' s aberration. experience from foreign country show that active power filter has good application foreground. so its research and application is very important in the future
本文還重點討論了數字低通濾波器的設計及其截至頻率對指令電流精度的影響，通過模擬得出結論：數字低通濾波器的截止頻率越低，基波有功電流的畸變就越小，從而基波有功電流減去負載電流求得的指令電流的誤差也越小。 -
In order to solve this problem, this research adopts the electrical self - regulation circuit in series, on the basis of the unchanged of transfer function of electromagnetism rate transducer, extend frequency bandwidth of the transducer, improving its capability. after the self - regulation, the transducer has high passing feature and inferior lower lever cut - off frequency ( below 1 hz )
為了解決普通電磁式速度傳感器不能檢測超低頻振動信號的問題，本研究採用了一種串聯式電子補償電路，在保持電磁式速度傳感器的傳遞函數性質（高通）不變的前提下，拓展了傳感器的頻寬，改善了傳感器的性能。 -
Calculating and analyzing shows that the smaller the radius of the gaussian beam, the smaller the cut - off spatial frequency in both transverse and longitudinal directions, the lower the imaging quality
計算與分析表明，光束的束腰半徑越小，三維成像時橫向和軸向的截尾空間頻率都減小，成像品質下降，解析度降低。
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