查询词典 fiber-optic

Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容：一、选取了常见的热膨胀系数大的材料制作封装元件，经过多次一80℃到80℃反复测试，封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷，封装材料具有良好的温敏稳定性及复用性，与光纤相容性较好；二、对光纤光栅进行简单、实用的封装处理，就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验，得出了初步的结论；三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比，从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析，在大量实验数据分析结果的基础上，总结出哪种材料封装效果更好，以及如何有效的减小实验误差。

The effects of soil moisture on abscission of squares and bolls in different stages and on fiber quality of cotton were studied in 1991~1995 under the conditions of water control.

1991～1995年在人工控制水分的条件下，研究不同生育阶段土壤水分对棉花蕾铃脱落与纤维品质的影响。

It was found that deficient or excessive soil moisture led to increase in abscission of squares and bolls and decrease in fiber quality.

研究发现，土壤水分不足或过大，均易造成蕾铃脱落增加和品质下降。

As having advantages such as littler inserting loss, better wavelength selection and absolute coding, FBG has bright prospects of applications in fiber communication and sensing.

由于它具有插入损耗小、波长选择性好及传感信息对波长绝对编码等优良特性，因而在光纤通信及传感领域有着广阔的应用前景。

FBG sensor has the advantages of resistance to electromagnetic interference, big signal bandwidth, high sensitivity, easy multiplexing, light weight, compact conformation, easy for fiber connection, realizing wavelength absolute coding, linking many sensors into sensing network using various multiplexing technology, realizing multi-point monitoring to achieve its properties through embedding in the internal structure of materials, or adhibiting on the surface mount, etc.

近年来，光纤光栅在光纤传感和光纤通信中的应用研究引起了人们普遍的关注。

By testing deferent materials like cotton, flax and chemical fiber, it is proved that the equipment can describe exactly the absorbability of fabrics.

通过对棉、麻、化纤等织物芯吸性能的测试，表明该仪器可以比较准确地表征织物的吸湿性能。

Bamboo fiber is absorbent cotton three times.

竹纤维的吸水性是棉的三倍。

This amazing fiber is 60 percent more absorbent than cotton, and can absorb up to 3 times it's weight in water.

这种令人惊异的材料吸水量比棉高出60%，可以吸收比它自身重3倍的水。

During the testing many kinds of advanced instrument were implied in study of the fiber's inner structure, the infrared absorption spectrum, x-ray diffraction curve, etc.

同时对纤维主要的物理机械性能与化学性能进行了系统的实验分析，以期对该纤维的形态特征、服用性能有较全面的掌握。

The results show that the optimum mole percent of Al3+ to Yb3+ is 9—11 for high concentration of ytterbium-doped silica-based fiber at which low concentration quenching probability, high absorption coefficient and proper numerical aperture can be obtained.

揭示出在高掺Yb3+的石英基光纤中，共掺Al3+的摩尔浓度为Yb3+摩尔浓度的9—11倍时既可以减小Yb3+的浓度猝灭概率，又可以获得高吸收系数，同时还可更好地满足数值孔径的要求的结论。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。