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piezoelectric constant

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piezoelectric constant 壓電常數。

壓電常數。 “piezoelectric“ 中文翻譯：   adj. 【物理學】壓電的。 “constant“ 中文翻譯：   adj. 1.恒定不變的，固定的，穩定的，恒久的；繼續不 ...“apparent piezoelectric constant“ 中文翻譯：   表觀壓電常數“piezoelectric coupling constant“ 中文翻譯：   壓電耦合常數“piezoelectric deformation constant“ 中文翻譯：   壓電變形常數“piezoelectric stiffness constant“ 中文翻譯：   壓電勁度常數“piezoelectric strain constant“ 中文翻譯：   壓電應變常數“piezoelectric stress constant“ 中文翻譯：   壓電脅強常數; 壓電應力常數“piezoelectric voltage constant“ 中文翻譯：   壓電電壓常數“piezoelectric accelerometer“ 中文翻譯：   壓電加速度表; 壓電加速度計; 壓電加速計; 壓電式加速度表“piezoelectric actuator“ 中文翻譯：   壓電傳動裝置“piezoelectric axis“ 中文翻譯：   壓電軸“piezoelectric bar“ 中文翻譯：   壓電桿“piezoelectric buzzer“ 中文翻譯：   壓電蜂鳴器“piezoelectric calibrator“ 中文翻譯：   壓電校準器“piezoelectric cartridge“ 中文翻譯：   壓電拾音器芯; 壓電式拾音頭“piezoelectric cell“ 中文翻譯：   壓電式壓力盒“piezoelectric ceramic“ 中文翻譯：   壓電的; 壓電陶瓷“piezoelectric ceramics“ 中文翻譯：   壓電陶瓷“piezoelectric coefficient“ 中文翻譯：   壓電系數“piezoelectric compliance“ 中文翻譯：   壓電順度“piezoelectric control“ 中文翻譯：   壓電控制“piezoelectric converter“ 中文翻譯：   壓電能量轉換器“piezoelectric coupling“ 中文翻譯：   壓電耦合“piezoelectric crystal“ 中文翻譯：   壓電晶體。

piezoelectric crystal

But there is a main question that pvdf does not be in p phase with higher piezoelectric property , but be in other phases with lower or without piezoelectric property , thus , which can not improve distinctly piezoelectric constant d33 , reduce notably dielectric spoilage ( tg5 ) and raise remarkably mechanical coupling factor ( kp ) of 0 - 3 pzt / pvdf piezoelectric composite , so these will restrict its development and application . in this paper , 0 - 3 pzt / pvdf piezoelectric composite will be prepared by room pressing - solidity , high - temperature - pressing and room - pressing techniques respectively 由于這個壓電復合材料體系存在一個主要問題? pvdf在0 ? 3型pzt / pvdf壓電復合材料中通常不是以具有較強壓電性的相晶態形式呈現，多是以其它的相態存在，不能有效地提高0 ? 3型pzt / pvdf壓電復合材料的壓電常數d _ ( 33 ) 、降低介電損耗tg和增大機電耦合系數kp等壓電和介電性能，從而嚴重地制約它的發展和應用。

Relaxor ferroelectric single crystals , such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ) , have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties . such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers , actuators and micro - positioners , making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications . however , it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data 新型弛豫鐵電單晶鈮鎂酸鉛(簡稱pmnt )或鈮鋅酸鉛(簡稱pznt )是一類新興的功能材料，其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電致伸縮系數，可完全代替傳統的壓電陶瓷作為超聲換能器、致動器、微位移器等，使其成為鐵電領域的研究熱點，但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。

So it can be used as both sensor component and driving component . pzt have better electromechanical coupling coefficient , piezoelectric constant , mechanical quality factor , curie temperature and stability , etc . so , pzt can be used widely in smart materials and structure 與其它壓電陶瓷相比,鋯鈦酸壓電陶瓷( pzt )有較好的機電耦合系數、壓電常數、機械品質因數、居里溫度和穩定性等,因此, pzt能廣泛應用于智能材料結構中。

The maximum of the piezoelectric constant d33 is 68pc / n when the volume fraction of pzt , pvdf , pan is 0 . 55 , 0 . 45 , and 0 . 05 respectively . finally , , when the n , a , p are 6 , 0 . 6 , 0 . 3 respectively , the calculation value can agree well with the experimental data 而且經過理論計算與比較，當以下三個參量取下列值時，即陶瓷顆粒形狀因子n = 5 、極化率= 0 . 6 、結構因子q = 0 . 3時，實驗數據與理論計算吻合較好。

The piezoelectric constant ( dji ) changes with the polarization time under saturated electric field . the d33 increases rapidly with the polarization time at the initial stages of polarization , and approaches constant after certain time 在飽和電場( es )下，壓電常數( d33 )隨極化時間( tp )的變化而變化，極化初期d33隨tp的增加而迅速增高；極化一定時間后， d33趨于平緩。

The relations between piezoelectric characteristic such as piezoelectric constant , electromechanical coupling coefficient , mechanical quality factor , etc . and its components , granular diameter and manufacturing technology were studied 研究壓電材料壓電常數、機電耦合系數、機械品質因數等特性與其組份、顆粒直徑及制作工藝過程之間的關系。

High piezoelectric constant and dielectric constant piezoelectric ceramic grain which used as functional element were selected , and mixed with polymers in 60 - 70 % volume percent 選擇具有高的壓電常數和介電常數的壓電陶瓷顆粒作為功能相，并以60 70體積分數與聚合物共混。