電系數 的英文怎麼說
中文拼音 [diànxìshǔ]
電系數
英文
acousto□electric□index-
Method for measurement of pyroelectric coefficient of fine ceramics
細陶瓷熱電系數的測量方法Iv ) for the strong interfacial coupling, there exist three pyroelectric peaks in the temperature curve of pyroelectric coefficient, and with the decrease of the interfacial coupling, the number of the pyroelectric peaks will decrease gradually
我們還發現,較強的界面耦合導致熱電系數的溫度曲線上的三個熱電峰的出現;而界面耦合強度的減弱及鐵電超晶格尺寸的減少將導致某些熱電峰的消失。Every metal has a thermoelectric coefficient that is normally stated versus platinum
每一種金屬都有溫差電系數基準為鉑。The chip of microbridge structure thermocouple type microwave power sensor is designed by using seeback domino offect of thermocouple. ta2n of relatively low resistor - temperature coefficient and si of relatively high thermoelectric power seebeck coefficient are used as thermocouple materials in the chip
微梁結構熱偶微波功率傳感器晶元就是利用熱偶的塞貝克效應設計的,晶元選擇具有低電阻溫度系數的ta2n和具有高熱電系數的半導體單晶si作為熱偶材料。It is found that the pyroelectric coefficient and susceptibility increase with the decrease of the magnitude of the long - range interaction and the interfacial coupling when the temperature is lower than the phase transition temperature
我們發現,在相變溫度以下,隨著雙層薄膜的界面耦合的減弱,鐵電雙層薄膜的熱電系數和介電極化率增加。We also find that the strong long - range interaction, the large transverse field and weak interfacial coupling can lead to the disappearance of some of the peaks of the pyroelectric coefficient and susceptibility of the ferroelectric bilayer. we believe that it is the reason why these phenomena always take place in the experimental studies
我們還發現,較強的長程相互作用,較大的橫場以及相對較弱的界面耦合作用將會導致鐵電雙層薄膜的熱電系數和介電極化率的某些峰消失,這可以用來解釋在實驗中常常觀測不到熱釋電系數和介電極化率的某些峰值的原因。In the framework of the long - range interaction, we study the interfacial effects on the pyroelectric and dielectric susceptibility of a ferroelectric bilayer for the first time. we find that the quantum effect can lead to the disappearance of some of the peaks of the pyroelectric and susceptibility of the bilayer
我們首次在長程相互作用的框架內,考察了界面對雙層膜的熱電、介電等物理性質的影響,且量子效應的增強會導致鐵電雙層薄膜的熱電系數和介電極化率的某些峰的消失。The results are as follows : ( 1 ) bst thin film prepared by pulsed laser deposition is well crystallized. the average grain size is 100nm and the surface roughness is about 10nm. when the electric field intensity is 3v /, the tunability of the thin film is about 30 % and the loss tangent is about 20 % under room temperature
研究結果如下: ( 1 )採用脈沖激光沉積法制備的bst薄膜結晶良好,晶粒尺寸在100左右;表面粗糙度約為10 ;室溫下,當直流電場為3v /時介電系數變化率約為30 % ,介質損耗約為20 % 。Especially, they are characteristic of low price and perfect absorbability, so they can be an important absorbent in radar absorbing materials
鐵氧體既具有亞鐵磁性又有介電特性,對簡諧微波電磁場來說,其相對磁導率和相對介電系數均呈現復數形式。Ii ) with the increase of the long - range interaction and the interfacial coupling, the pyroelectric coefficient before the phase transition temperature decreases
另外,隨著長程相互作用以及界面耦合強度的增強,相變溫度以下的熱電系數明顯減小。By extending the pyroelectric theory of a ferroelectric bilayer, we have presented the effective pyroelectric coefficient of a ferroelectric sandwich structure by use of the electrostatic theory. when the pyroelectric coefficient of the interface has a large deviation from that of the two - sided slabs and the dielectric constant of the interface is low, the effective pyroelectric coefficient of the sandwich structure may be one or two order higher than the largest pyroelectric coefficient of the components
我們應用靜多層結構鐵電系統的物理性質研究摘要電場理論,推廣了鐵電雙層膜的熱電理論,給出了鐵電三明治結構的有效熱電系數,發現在界面層的熱電系數與上下兩層的熱電系數差異較大,且界面層的介電常數較小的情況下,三明治這種復合結構材料的有效熱電系數比單一組份材料的熱電系數可以提高一到兩個數量級。We obtain that i ) with the increase of the phonon - pseudospin interaction and the thickness of the superlattice, the phase transition temperature of the superlattice will increase. ii ) the increase of the phonon - pseudospin interaction leads to the change of the number of the pyroelectric peaks in the temperature curve of pyroelectric coefficient and to the change of the pyroelectric coefficient
研究發現,聲子與贗自旋的相互作用會影響鐵電超晶格熱電峰的數目以及熱電系數的溫度曲線的形態,而且聲子與贗自旋耦合作用的增強以及超晶格尺寸的增大都會使整個材料的相變溫度增加。Test method for pyroelectric coefficient of pyroelectric materials
熱釋電材料熱釋電系數的測試方法Test methods for the properties of piezoelectric ceramics - test for the pyroelectric coefficient
壓電陶瓷材料性能測試方法熱釋電系數的測試And programs are developed for piezoelectric coefficient measurement and butterfly curve measurement
開發了用於壓電材料的壓電系數測量和鐵電材料蝴蝶曲線測繪的軟體。All above physical parameter establish the relation with the parameters in formula of the anchoring energy and the flexoelectric coefficiente1 + e3
以上這些物理量都與上、下基板的錨定能公式出現的參量以及撓曲電系數e _ 1 + e _ 3有關。With the result of this investigate, a new experimental plan for measurement of the flexoelectric coefficient the non - symmetric liquid crystal cell is proposed
作為本項研究結果的一個應用,本文提出採用不對稱液晶盒可以用來測定液晶的撓曲電系數。Electrorheological fluids ( er fluids ) is a composite suspension of polarizable solid particles with a radium of u m dispersed in an unpolarizable continuous medium
電流變體是由粒徑為微米或亞微米級的易極化粒子分散於低介電系數的液體絕緣介質中形成的復合懸浮體。After adding 0. 12 volume fraction of pt powder, the pyroelectric coefficient of pt / p ( vdf - trfe ) composite film was about 30 % higher and the detective merit was about 21 % higher than that of sensors using pure p ( vdf - trfe )
12的鈦酸鉛納米陶瓷粉粒的摻入,使得pt / p ( vdf - trfe )復合膜的熱釋電系數值提高了約30 ,探測優值提高了約21 。The effective permittivity can be used to describe the molecular polarization of the mixture in the reaction and consequently be used to calculate the transmission and absorption of microwave in the reaction mixture
由於等效介電系數常常被用來描述在化學反應中微波的吸收和傳輸情況,因而,化學反應中反應物的等效介電系數就成為微波化學研究的關鍵問題之一。分享友人