1) high Q m
高机械品质因数Qm值
2) mechanic quality factor
机械品质因数Qm
3) high mechanical quality factors
高机械品质因数
4) mechanical quality factor
机械品质因数
1.
These ceramics showed high mechanical quality factor,low dielectric loss,high Te.
该材料具有高机械品质因数、低介电损耗、高居里点、高机械强度、烧结范围宽、工艺重复性好等特点。
2.
Aging effect (in both one and two steps)on the frequency temperature coefficient γf and the mechanical quality factor Q of Fe-Ni-Cr-Ti Elinvar alloy was studied.
研究了时效(单级和分级时效)处理对 Fe-Ni-Cr-Ti 埃林瓦合金的频率温度系数γ_f和机械品质因数 Q影响。
3.
It was found that with an increase of Pb(Mn1/3Nb2/3)O3,the phase structure changed from tetragonal to rhombohedral and the proper amount of Pb(Mn1/3Nb2/3)O3 would improve elctromechanical coupling factor kp and mechanical quality factor Qm simultaneously,kp=0.
5 %(摩尔分数),可以同时提高机电耦合系数kp和机械品质因数Qm,使kp达到0。
5) mechanical quality factor
机械品质因素
1.
In this article,from the most basic physics principle,the function of the piezoelectric transformer performance Vs three basic factors(mechanical quality factor,electromechanical coupling factor as well as electric quality factor) are established.
该文从最基本的物理学原理出发,把压电变压器的性能归结为3个基本因子的函数,即机械品质因素、机电耦合因素以及电学品质因素。
2.
The research shows that, without taking any additional measures for bandwidth expansion, the value of mechanical quality factor Q_(m) can be lowered and their bandwidth by geometric parameter optimization alone.
研究结果表明,在没有采用其它频带展宽方法的前提下,通过优化几何参数,可以降低换能器的机械品质因素Qm,从而增大带宽。
3.
The relationships of PbO excess with the properties of an new modified PbTiO 3 ceramics with large anisotropy were investigated, the performances including the electromechanical coupling factors, mechanical quality factor, dielectric loss and so on were studied.
研究了一种新型的具有大各向异性的改性PbTiO3 陶瓷材料的性能随着材料制备中铅过量的变化而变化的关系 ,其中包括材料的机电耦合系数、机械品质因素、介电损耗等 。
6) mechanical quality factors
机械品质因素
1.
The results showed that when the titanate was partially substituted by 3% (mol/mol) of nickel-niobium and 3%(mol/mol) of zinc-tungsten, the samples not only had larger piezoelectric anisotropy but also higher mechanical quality factors.
研究结果表明 :当Pb(Zn1 2 W1 2 )O3和Pb(Ni1 3Nb2 3)O3的掺杂量为 3 % (mol mol)时 ,样品同时具有较大的压电各向异性和较高的机械品质因素 。
2.
The influences of MnCO 3 additions an d poling field on the properties of modified ceramics were studied, among which include electromechanical coupling factors, mechanical quality factors, dielectr ic loss and so on.
研制了一种新型的改性PbTiO3 陶瓷大各向异性材料 ,研究了这种新型材料的性能在不同MnCO3掺杂量和不同的极化电场下的变化 ,其中包括材料的机电耦合系数、机械品质因素、介电损耗等 。
补充资料：电学品质因数
分子式：
CAS号：
性质：任何电介质，包括压电陶瓷在内，当它处在电场中，尤其是交变电场中长期工作，都或多或少地有发热现象产生。这说明介质内部发生了某种能量的耗散，这就是介质损耗。换言之，介质损耗越少，材料的电学品质因数(Qe)就越高。因此电学品质因数和介质损耗角正切值一样是表征介质品质的一个重要指标，且两者互成倒数。
CAS号：
性质：任何电介质，包括压电陶瓷在内，当它处在电场中，尤其是交变电场中长期工作，都或多或少地有发热现象产生。这说明介质内部发生了某种能量的耗散，这就是介质损耗。换言之，介质损耗越少，材料的电学品质因数(Qe)就越高。因此电学品质因数和介质损耗角正切值一样是表征介质品质的一个重要指标，且两者互成倒数。
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