The transmission spectra drift from the varying of the gratings parameters is due to its modulation to the length of the Fabry-Perot-like.
光栅参数变化产生的透射光谱的漂移是由于其对这种类F—P腔长度的调制。
2
When zoom lens are used for military sighting, the drift of optical center caused by the change of focus length will reduce the sighting accuracy severely.
长焦变焦镜头用于军事瞄准时，变焦过程中较大的光中心漂移，降低瞄准精度。
3
The length of the mobility tube and the electric field intensity have been adjusted to optimum, and the relationship between the drift signal and the sample concentration has been studied.