
[電] 壓電材料
The sensor uses new solid material as transmission media and uses new piezoelectric material as sensitive unit, which raises the sensitivity.
傳感器使用固體材料作為傳感器的傳播介質,用新型的壓電材料作為敏感元件,提高了靈敏度。
Analyzing the working mechanism of piezoelectric material, the main piezoelectric characteristics of typical piezoelectric material were analyzed and stu***d.
分析壓電材料的工作機理,并對典型的壓電材料的主要壓電性能進行分析研究。
Several processings, grain orientation growth (TGG) and doping, which can improve performance of the bismuth layer structure lead-free piezoelectric material, are introduced.
本文重點介紹了提高铋層狀結構無鉛壓電材料壓電性能的措施——晶粒定向生長和摻雜。
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.
德克薩斯A\u0026M大學和休斯敦大學的科學家們将研究重點放在一些壓電材料上,它們隻有21納米的厚度,卻能夠轉換能量。
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.
第二章基于壓電材料的機電耦合關系求解螺型位錯、圓形界面裂紋與夾雜之間相互作用的問題。
New type of piezoelectric material to the study of linear distortion such as indicators of a great upgrade.
新型的壓電材料的研究也使其線性、失真等指标有很大提升。
Selecting piezoelectric material to control vibration is a good method.
因此選用壓電材料來控制振動也是一種很好的辦法。
Each stalk will contain alternating layers of electrodes and ceramic discs made from piezoelectric material, which generates a current when put under pressure.
每個追蹤器将包括一個可更替的電極層與壓電物質制成的陶盤,這樣一來在置于壓強情況下就能産生電流。
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在多個環節中存在非線性因素,其中壓電材料遲滞非線性對USM的性能具有重要影響。
The structure and the excited method of this motor are described in details, also include the principle of the piezoelectric material selection.
文中給出了馬達的結構及激勵方法,讨論了選取壓電材料的原則;
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.
壓電薄膜材料是適用于MEMS器件的功能薄膜材料,其中,PZT薄膜具有較高的壓電性能,受到研究者的青睐。
The paper did some research on the characteristics of charge energy recovery on the piezoelectric material.
對壓電材料電荷能量回收性能進行研究。
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.
采用傳遞矩陣法推導了結構中相鄰單胞間的傳遞矩陣,給出了結構中波動局部化因子的表達式,并給出了數值算例,分析了壓電材料各參數對局部化因子的影響。
Secondly, a slender cantilever beam made of transversely isotropic piezoelectric material subjected to subtangential follower forces at the free end is considered.
其次,考慮壓電材料梁一端固定、一端自由,自由端承受準跟隨力(壓力方向可在一定的範圍内變化,但不超過撓曲線的切線範圍)作用。
In this paper, the vibration control of composite laminated adaptive structure, which used piezoelectric material as the actuators, was stu***d.
本文針對闆殼型自適應結構,研究了壓電材料作為作動器的自適應結構的振動控制。
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.
當兩個電極之間形成電場時,壓電性物質便将電場轉化為沿徑向軸的機械壓力,使纖維震動。
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.
隨着壓電材料的快速發展,壓電驅動器在結構控制領域的使用也日益廣泛。
The FEM equation of flexible mechanisms with boned piezoelectric material and viscoelastic material is derived.
導出了粘貼壓電材料和粘彈性材料構件的有限元方程;
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,由于壓電材料的遲滞特性,壓電執行器的輸入電壓與相應的位移相應之間的關系是非線性的。
Type 13 composite piezoelectric material is used as research object, which composed of PZT5H is piezoelectric component and epoxy.
選用13型壓電複合材料作為研究對象,壓電相為PZT5H,環氧樹脂作為基體相。
Poly(vinylidene fluoride)(PVDF) is the fluoroplastics which has the best properties of piezoelectric material in practical applications.
聚偏************(PVDF)是目前實際應用中壓電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.
本文的解答結果為評估工程中含缺陷壓電材料裝置的強度和可靠性方面提供了依據。
The invention discloses a piezoelectric composite material for a broadband transducer, and belongs to the technical field of the piezoelectric material.
本發明公開了一種寬帶換能器的壓電複合材料,屬于壓電材料技術領域。
Mechanical model is established for collinear multiple unequal cracks in transversely isotropic piezoelectric material.
建立了橫觀各向同性壓電材料中的共線非等長多裂紋模型。
The 1-3 structure order composite piezoelectric material with fine structure can be used in high frequency medical ultrasound imaging technique.
具有微細結構的1-3型有序複合壓電材料可用于高頻醫療超聲成像技術。
A langasite crystal microbalance(LCM), a new type of piezoelectric sensor is fabricated by using langasite crystal as the piezoelectric material.
矽酸镧镓晶體微天平(LCM)是以矽酸镧镓晶體為壓電材料研制的新型壓電式傳感器,對表面質量負載變化有靈敏的頻率響應。
壓電材料(Piezoelectric Material)是一類具有獨特機電轉換特性的功能材料。當對其施加機械應力(壓力或張力)時,材料内部會産生電荷分離,從而在材料表面産生電壓(正壓電效應);反之,當對其施加外部電場時,材料會發生形變或産生機械應力(逆壓電效應)。這種機械能與電能之間的相互轉換現象稱為壓電效應。
核心原理: 壓電效應源于材料晶體結構的非中心對稱性。在未受外力時,材料内部正負電荷中心重合,整體不顯電性。當受到機械應力時,晶體結構發生形變,導緻正負電荷中心發生相對位移(極化),從而在特定方向上産生表面電荷。逆壓電效應則是電場迫使内部偶極子重新排列,導緻宏觀形變。
關鍵特性:
主要類型:
典型應用:
權威參考來源:
壓電材料(Piezoelectric Material)是一類具有特殊機電耦合特性的功能材料,其核心特性是壓電效應,即機械能與電能之間的相互轉換能力。以下是詳細解釋:
壓電材料在受到機械壓力或形變時,其内部會産生電極化現象,從而在材料表面形成電壓(正壓電效應);反之,當施加電場時,材料會發生機械形變(逆壓電效應)。這種雙向能量轉換特性是其應用的基礎。
壓電效應最早由居裡兄弟在石英中發現,現已成為微機電系統(MEMS)、智能材料等領域的核心技術之一。研究熱點包括提高材料溫度穩定性、降低鉛含量(環保型壓電陶瓷)等。
如果需要更深入的文獻或具體案例,可以參考材料科學領域的專業期刊或教材。
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