double t beam 中文意思是什麼
double t beam
解釋
雙 t 形梁-
4, single focuse the single head : is single for single laser head that panasonic lead off to adopt to focuse the double the laser beam for focusing ordering the project, he adopting the special whole synthesizing lens, passing lens in the center part ofly the focusing of formation cd the point, and pass the anastigmatic laser beam of part edge the formation the focusing of dvd the point, this kind of construction because of have no the machining to spread to move, and also can t produce the mechanical trouble, therefore increased to recognize the dish the speed, and however and also lowered the cost. but adoption this project of generation is with part of the next generation dvd nonsupports cdr
4單聚焦單鏡頭：為panasonic率先採用的單激光頭單聚焦鏡雙聚焦點方案，他採用特別的全息綜合透鏡，通過透鏡中間部分的激光束形成cd的聚焦點，通過透鏡邊緣部分的激光束形成dvd的聚焦點，這種結構由於沒有機械傳動，也不會產生機械故障，所以提高了認盤速度，不過同時也降低了成本。但採用此方案的第一代和部分第二代dvd不支持cdr 。 -
For do n ' t delive the horizontal power, connect method adopt the double hingle connect, and made both girder just to deliver the horizontal power each other, and vertical power can change position, this the problem that the top bear armor plate beam do n ' t accommodate the increasing in speed had been resolved radical
為了不傳遞豎向力，連接方式採用雙鉸接，使兩孔梁只能相互傳遞橫向力，豎向可以變位，從而基本解決了上承式鋼板梁不適應提速問題。 -
This thesis describes a all fiber optic accelerometer based on t - g double beam interferometer, the whole system include a coherent source whose wavelength is 1310nm, a flexural optic fiber disk act as sensing unit, photodetector, piezoelectric ceramic act as a phase modulator and signal processing circuit. the all fiber optic accelerometer described in the paper has many desirable engineering features which include : broad frequency response ; high sensitivity to measurands ; antielectromagnetic interference and small size
本課題研究的是一種基於泰曼-格林（ t - g ）雙光束干涉儀原理的光纖加速度計，系統主要包括：中心波長為1 . 31 m的ld相干光源、起傳感作用的光纖柔性盤、光探測器（ pin ） 、相位調制用的壓電陶瓷以及信號處理系統。
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