1) electrome chanical coupling factor,electromechanical coupling coefficient
机电偶合系数
2) transverse electromechanical coupling factor
横向机电偶合系数
3) longitudinal electromechanical coupling factor
纵向机电偶合系数
4) decoupling coefficient
不偶合系数
1.
excavation results of improved smooth blasting is obviously superior to the traditional method by indication of results of model experiment and analysis of connection of borehole pressure and decoupling coefficient,and which has some values to popularize.
通过对孔壁压力与不偶合系数的关系分析和模型试验结果证明,改进方法开挖效果明显优于传统方法,并具有推广使用的价值。
5) electromechanical coupling coefficient
机电耦合系数
1.
0?kV/mm,20?min and 80?℃,respectively,the piezoelectric constant d_(33),the relative dielectric constant ε_r and the electromechanical coupling coefficient K_p and K_t of the composites all increased with the increase of PLN content.
结果表明,在极化工艺参数为:极化电场强度为5 kV/mm;极化时间为20 min;极化温度为80℃的条件下,以硫铝酸钡钙水泥矿物作为基体的压电复合材料的相对介电常数rε和压电应变常数d33随着PLN质量含量的增加非线性增长,其值接近立方体模型理论值,随着PLN质量含量的增加,平面和厚度伸缩机电耦合系数Kp、Kt增大。
2.
The results show that the piezoelectric voltage factor g_(33) decreases nonlinearly with the volume fraction of the piezoelectric ceramic phase increasing,but piezoelectric strain factor d_(33),dielectric constant and electromechanical coupling coefficient K_p and K_t increase.
平面和厚度机电耦合系数Kp和Kt及介电常数εr随PMN体积分数的增大而增大,在低频段和高频段,其介电常数随频率的变化较平稳,表现出良好的介电频率稳定性。
3.
Crystal orientation dependence of piezoelectric modulus d33 and electromechanical coupling coefficient k33 have been calculated phenomenologically.
探讨了LBO晶体纵向压电系数d33及机电耦合系数k33随空间方向变化的规律,分别得到了LBO晶体压电系数d33及机电耦合系数k33的最大值及其方向,并与Li2B4O7进行了比较。
6) electromechanical coupling factor
机电耦合系数
1.
The easier coupling of the thickness fundamental resonance with the higher overtone of low-resonant modes leads to a bad measurement accuracy of the thickness series resonance frequencies or a failure of the resonance frequency measurement,resulting in deteriorating the accuracy and the identity of the electromechanical coupling factor determined by the traditional overtone ratio method.
压电振子低频振动模式的高次泛音易与厚度振动模式的基频相耦合,导致厚度振动的基音串联谐振频率不能精确测量(或无法测量),造成传统泛音比法测定压电振子的机电耦合系数的精度和一致性变差或无法进行测定。
2.
006, d33 = 243 pC/N)、high electromechanical coupling factor k33 (x = 0.
006时d33=243pC/N)、低的介质损耗(tanδ<2×10–2)、较高的机电耦合系数(x=0。
3.
The new piezoelectric crystal of LGS and it s characteristics are introduced simply in this paper, and the SAW properties of X -cuts, Y -cuts and Z -cuts of LGS are analyzed from theory, the results approved that LGS is a material with high electromechanical coupling factor and cuts of zero PFA and TCD.
简要介绍了硅酸钾镧(LGS)压电晶体及其性能,从理论上分析了其X切、Y切和Z切的声表面波(SAW)特性,证实了LGS具有机电耦合系数高且存在能流角和温度延时系数为零的切向等优点。
补充资料：横向机电耦合系数
分子式：
CAS号：
性质：表示横向长度伸缩振子振动时机械能与电能之间相互转换的能力，通常用K31表示。当振子的带宽Δf=fa-fr(式中，fa为并联谐振频率；fr为串联谐振频率)较小时，可用下式近似求得：。也可从平面耦合系数Kp换算而得:(式中，σE为泊松比)。它可作为大致判定该压电材料用于制造横向长度伸缩振子振动器件时是否适用。
CAS号：
性质：表示横向长度伸缩振子振动时机械能与电能之间相互转换的能力，通常用K31表示。当振子的带宽Δf=fa-fr(式中，fa为并联谐振频率；fr为串联谐振频率)较小时，可用下式近似求得：。也可从平面耦合系数Kp换算而得:(式中，σE为泊松比)。它可作为大致判定该压电材料用于制造横向长度伸缩振子振动器件时是否适用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条