The basic principles of multi-parameter tunable optical fiber grating wavelength tuner based on stress, displacement, space angle are analyzed and relative experimental researches are performed.

在模拟分析的基础上，设计了一种基于应力、位移、空间角度的多参数可调谐的光纤光栅波长调谐器，并进行了实验验证。

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The other point that has been covered in every review is the fact that, if you only have one single stream CableCARD (The Series3 support two single stream or one Multi-stream card) then you can only use one tuner, even on OTA, despite the fact that there is no technical reason for this.

ENGADGET: Review: Series3 TiVo HD

Rounding out the bunch are the 46-inch KDL-46V2500 and 40-inch KDL-40V2500, which also give you 1, 920 x 1, 080 pixels, but no digital tuner, one less HDMI input, and no option for interchangeable, multi-colored bezels as with their XBR2 counterparts.

ENGADGET: Seven from Sony: new BRAVIA flat-panel LCDs