查询词典 coefficient of the expansion

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。

Combining the principle of the equal thickness interference of air wedge with the CCD image-processing technique,a high precision automatic measurement method of thermal expansion coefficient is presented.

将空气劈尖的等厚干涉原理与CCD图像处理技术相结合，提出了一种对材料热膨胀系数进行高精度自动测量的新方法。

The results show that the dielectric constant and thermal expansion coefficient increased,the dielectric loss and bending strength desreased with the increasing of anorthite content.

钙长石含量大于50wt%的复合材料中α-石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

The effects of the interfacial bond strength,the embedded length of fiber and the thermal expansion coefficient on the fiber pullout process were studied.The results showed that the model ...

结果表明该模型能很好的解释纤维拔出的破坏过程，纤维的最大拔出力和材料的承载能力都随面结合强度、纤维的埋入长度和基体的热膨胀系数增大而增大；纤维与基体热膨胀系数的不匹配对摩擦拔出力有直接影响。

The refractoriness, room temperature strength and expansion coefficient of vitrified bonds with different Na2O content were investigated.

研究了陶瓷结合剂中Na2O的含量对陶瓷结合剂性能的影响。

The refractoriness,room temperature strength and expansion coefficient of vitrified bonds with different Na2O content were investigated.

研究了陶瓷结合剂中Na2O的含量对陶瓷结合剂性能的影响。发现结合剂的耐火度随Na2O含量的增加而降低；结合剂中Na2O含量对由结合剂和金刚石磨料制得的力学试条的强度有很大影响，结合剂Na2O含量较低时，随Na2O含量的增加，力学试样抗弯强度提高。

In addition, the thermal expansion coefficient of wollastonite is close to that of Ti alloys. It indicates that wollastonite coating is tightly bonding to Ti alloy substrate.

与生物活性玻璃类似的组成保证了硅灰石具有良好的生物活性；相近的热膨胀系数使硅灰石涂层能与钛合金基体牢固的结合。

The thermal shock resistance of the brick is expected to improve as a result of bigger bulk density, lower thermal expansion coefficient, phase transformation of fused MgO-ZrO2 eutectic powder, formation of magnesiaalumina spinel and forsterite.

材料性能的变化主要与电熔MgO-ZrO2共晶砂的体积密度大、热膨胀系数小、氧化锆的相变、镁铝尖晶石和镁橄榄石等物相的生成相关。

The hydroscopic expansion coefficient of grains is an important physical parameter for prediction of bulk densities and study of internal stresses of grain kernel during adsorption and desorption.

湿膨胀系数用于预报谷物堆密度和研究谷粒应力裂纹产生原因等研究。

In this paper, the measuring system and measuring principle are discussed in detail. Using this measuring system, high temperature deformation or linear expansion coefficient of materials is measured.

本文详细论述了测量系统及其测量原理，并利用该测量系统对某种材料的高温变形或线膨胀系数进行了测量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。