
[电] 压电材料
The sensor uses new solid material as transmission media and uses new piezoelectric material as sensitive unit, which raises the sensitivity.
传感器使用固体材料作为传感器的传播介质,用新型的压电材料作为敏感元件,提高了灵敏度。
Analyzing the working mechanism of piezoelectric material, the main piezoelectric characteristics of typical piezoelectric material were analyzed and stu***d.
分析压电材料的工作机理,并对典型的压电材料的主要压电性能进行分析研究。
Several processings, grain orientation growth (TGG) and doping, which can improve performance of the bismuth layer structure lead-free piezoelectric material, are introduced.
本文重点介绍了提高铋层状结构无铅压电材料压电性能的措施——晶粒定向生长和掺杂。
The Texas A\u0026M and University of Houston researchers focused on a certain type of piezoelectric material, which is able to convert energy when it is manufactured at around 21 nanometers thick.
德克萨斯A\u0026M大学和休斯敦大学的科学家们将研究重点放在一些压电材料上,它们只有21纳米的厚度,却能够转换能量。
In the second chapter, the interaction among a screw dislocation, circular interfacial crack and inclusion is solved based on the electromechanical coupling relation of piezoelectric material.
第二章基于压电材料的机电耦合关系求解螺型位错、圆形界面裂纹与夹杂之间相互作用的问题。
New type of piezoelectric material to the study of linear distortion such as indicators of a great upgrade.
新型的压电材料的研究也使其线性、失真等指标有很大提升。
Selecting piezoelectric material to control vibration is a good method.
因此选用压电材料来控制振动也是一种很好的办法。
Each stalk will contain alternating layers of electrodes and ceramic discs made from piezoelectric material, which generates a current when put under pressure.
每个追踪器将包括一个可更替的电极层与压电物质制成的陶盘,这样一来在置于压强情况下就能产生电流。
Generally, there are many nonlinear factors in different parts of USM, in which the hysteretic nonlinearities of piezoelectric material affect the performance of the motor.
USM在多个环节中存在非线性因素,其中压电材料迟滞非线性对USM的性能具有重要影响。
The structure and the excited method of this motor are described in details, also include the principle of the piezoelectric material selection.
文中给出了马达的结构及激励方法,讨论了选取压电材料的原则;
Piezoelectric material is applied as MEMS function material extensively. PZT thin film as one type of piezoelectric material with excellent piezoelectricity is stu***d by lots of scholar.
压电薄膜材料是适用于MEMS器件的功能薄膜材料,其中,PZT薄膜具有较高的压电性能,受到研究者的青睐。
The paper did some research on the characteristics of charge energy recovery on the piezoelectric material.
对压电材料电荷能量回收性能进行研究。
The expression of localization factor is given by Wolf algorithm, numerical examples are presented and the effects of various parameters of piezoelectric material on localization factor are analyzed.
采用传递矩阵法推导了结构中相邻单胞间的传递矩阵,给出了结构中波动局部化因子的表达式,并给出了数值算例,分析了压电材料各参数对局部化因子的影响。
Secondly, a slender cantilever beam made of transversely isotropic piezoelectric material subjected to subtangential follower forces at the free end is considered.
其次,考虑压电材料梁一端固定、一端自由,自由端承受准跟随力(压力方向可在一定的范围内变化,但不超过挠曲线的切线范围)作用。
In this paper, the vibration control of composite laminated adaptive structure, which used piezoelectric material as the actuators, was stu***d.
本文针对板壳型自适应结构,研究了压电材料作为作动器的自适应结构的振动控制。
When an electric field is applied to the electrodes the piezoelectric material translates this into a mechanical strain along its radial axis, causing it to vibrate.
当两个电极之间形成电场时,压电性物质便将电场转化为沿径向轴的机械压力,使纤维震动。
With the development of Piezoelectric material \u0026 structure, the piezoelectric actuators have been more and more used to structure control in aviation and aerospace industry.
随着压电材料的快速发展,压电驱动器在结构控制领域的使用也日益广泛。
The FEM equation of flexible mechanisms with boned piezoelectric material and viscoelastic material is derived.
导出了粘贴压电材料和粘弹性材料构件的有限元方程;
However, the hysteresis is an inherent character of the piezoelectric material which leads to the nonlinear relationship between input voltage and piezoelectric actuator response.
然而,由于压电材料的迟滞特性,压电执行器的输入电压与相应的位移相应之间的关系是非线性的。
Type 13 composite piezoelectric material is used as research object, which composed of PZT5H is piezoelectric component and epoxy.
选用13型压电复合材料作为研究对象,压电相为PZT5H,环氧树脂作为基体相。
Poly(vinylidene fluoride)(PVDF) is the fluoroplastics which has the best properties of piezoelectric material in practical applications.
聚偏************(PVDF)是目前实际应用中压电性能最好的含氟塑料。
The results of this paper provide the gists of evaluating the intensity and reliability of the piezoelectric material sets with defects in the project.
本文的解答结果为评估工程中含缺陷压电材料装置的强度和可靠性方面提供了依据。
The invention discloses a piezoelectric composite material for a broadband transducer, and belongs to the technical field of the piezoelectric material.
本发明公开了一种宽带换能器的压电复合材料,属于压电材料技术领域。
Mechanical model is established for collinear multiple unequal cracks in transversely isotropic piezoelectric material.
建立了横观各向同性压电材料中的共线非等长多裂纹模型。
The 1-3 structure order composite piezoelectric material with fine structure can be used in high frequency medical ultrasound imaging technique.
具有微细结构的1-3型有序复合压电材料可用于高频医疗超声成像技术。
A langasite crystal microbalance(LCM), a new type of piezoelectric sensor is fabricated by using langasite crystal as the piezoelectric material.
硅酸镧镓晶体微天平(LCM)是以硅酸镧镓晶体为压电材料研制的新型压电式传感器,对表面质量负载变化有灵敏的频率响应。
压电材料(Piezoelectric Material)是一类具有独特机电转换特性的功能材料。当对其施加机械应力(压力或张力)时,材料内部会产生电荷分离,从而在材料表面产生电压(正压电效应);反之,当对其施加外部电场时,材料会发生形变或产生机械应力(逆压电效应)。这种机械能与电能之间的相互转换现象称为压电效应。
核心原理: 压电效应源于材料晶体结构的非中心对称性。在未受外力时,材料内部正负电荷中心重合,整体不显电性。当受到机械应力时,晶体结构发生形变,导致正负电荷中心发生相对位移(极化),从而在特定方向上产生表面电荷。逆压电效应则是电场迫使内部偶极子重新排列,导致宏观形变。
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压电材料(Piezoelectric Material)是一类具有特殊机电耦合特性的功能材料,其核心特性是压电效应,即机械能与电能之间的相互转换能力。以下是详细解释:
压电材料在受到机械压力或形变时,其内部会产生电极化现象,从而在材料表面形成电压(正压电效应);反之,当施加电场时,材料会发生机械形变(逆压电效应)。这种双向能量转换特性是其应用的基础。
压电效应最早由居里兄弟在石英中发现,现已成为微机电系统(MEMS)、智能材料等领域的核心技术之一。研究热点包括提高材料温度稳定性、降低铅含量(环保型压电陶瓷)等。
如果需要更深入的文献或具体案例,可以参考材料科学领域的专业期刊或教材。
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