1) thickness vibration electromechanical coupling factor
厚度振动机电耦合系数
2) thickness shear vibration electromechanical coupling factor
厚度切变振动机电耦合系数
3) electromechanical coupled vibration
机电耦合振动
1.
This paper deals with the electromechanical coupled vibration problem in transformer.
研究了变压器绕组的机电耦合振动稳定性问题,建立了变压器绕组轴向机电耦合的动力学模型。
4) electromechanical coupling coefficient(K_(33))
动态机电耦合系数K33
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：厚度振动机电耦合系数
分子式：
CAS号：
性质：表示压电振子厚度伸缩振动子时，机械能与电能之间相互转换的能力，通常用Kt表示。可用下式计算求得：K =1-。式中，ε33T为自由介电常数；ε33S为受夹介电常数；Kp为平面机电耦合系数。
CAS号：
性质：表示压电振子厚度伸缩振动子时，机械能与电能之间相互转换的能力，通常用Kt表示。可用下式计算求得：K =1-。式中，ε33T为自由介电常数；ε33S为受夹介电常数；Kp为平面机电耦合系数。
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