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dielectric constant 介電常數,介電恒量,電容率。

dien bien phu

Inverting the formation dielectric constants using the phase difference and resistivity information of high frequency electromagnetic log to subtract is a feasible method 利用高頻電磁波測井的相位差曲線與電阻率信息來獲取地層介電常數的反演方法,是具有實用性的方法。

Dr is made of microwave ceramic with high dielectric constant and very low loss . using dr , the phase noise of an oscillator could be made to be extremely low 介質諧振器( dr )由高介電常數、低損耗的微波陶瓷材料制作而成,它能極其容易地實現微波頻率源的低相位噪聲。

In this paper , equivalent dielectric constant , which is obtained on the functions of complex variables , is applied to deal with dielectric effect on slots 另外,在口徑電場的假設上,本文不再使用模擬對稱振子電場的正弦分布,而使用適合介質存在時的余弦分布。

The present paper mainly discusses the applied condition of gpr , especially the affects of conductivity , dielectric constant and frequency on gpr application 本文對其應用條件進行了探討,特別研究了導電率、介電常數、探測頻率3個主要因素對地質雷達探測的影響。

So the value and distribution of the dielectric constant in erf change . in this paper the coupling between the microwave and erf was investigated 在微波頻率為9g時,研究了納米二氧化鈦包覆高嶺土、鈦酸鋇以及釔摻雜鈦酸鋇三種電流變液的微波反射可調控特征。

The important results and innovations are as follows : 1 . sol - gel technology was used in making composite oxide films which have high dielectric constant 論文的主要內容及創新性研究歸納如下: 1 、研究了sol - gel技術在制備高介電常數復合氧化膜中的應用。

And , by varying the concentration of the organic solution of the top amorphous layer , the effective dielectric constants of the capacitors can also be controlled 而且,通過降低最上面非晶層的厚度,可以有效地控制薄膜的介電常數,而損耗依然保持較低。

Of a dielectric , the product of dielectric constant and the tangent of its dielectric loss angle ; a measure of the heating effect which occurs in dielectrics 對于電介質來說,它是介電常數和介質損耗角的正切的乘積,這是對出現在電介質中的熱效應的量度。

Standard test methods for complex permittivity dielectric constant of solid electrical insulating materials at microwave frequencies and temperatures to 1650oc 在微波頻率和1650時固體電絕緣材料復合介電常數的標準試驗方法

10 . 02 test methods for complex permittivity dielectric constant of solid electrical insulating materials at microwave frequencies and temperature to 1 , 650 c 微波頻率和溫度為1650時實心電絕緣材料綜合介電常數測試驗方法

The even or odd mode effective dielectric constant is calculated by inserting the magnetic wall or electrical wall at the lateral boundry 通過在電路的兩側人為地插入電壁或磁壁,分別解出電路的偶模與奇模有效介電常數。

Test method for permittivity dielectric constant and dissipation factor of solid ceramic dielectrics at frequencies to 10 mhz and temperature to 500 deg c 頻率10 mhz溫度500固體陶磁介質的漏電率和耗散因子測定方法

A general expression for the effective dielectric constant of a two - phase random composite system was derived by using effective media theory 利用有效介質理論導出了二元無規混合物的有效介電常數的普適計算公式。

The purpose of this study was to model the effects of density on the dielectric constants of particulate agricultural materials using finite element analysis 摘要粒狀農?品的介電常數會受到其密度的變化而改變。

Standard test method for permittivity dielectric constant and dissipation factor of solid ceramic dielectrics at frequencies to 10 mhz and temperatures to 500 c 頻率為10mhz溫度至500的固體陶瓷電介質電容率

These powders transform to mullite completely at 1300 . the dielectric constant of mullite ceramics is related with their composition 熱分析和xrd表明,該粉末經1300的熱處理,就完全轉變為莫來石。

The dielectric constant and the dielectric loss of the plct ceramics with different composition were measured at different frequency 測量了不同組分plct ( x )陶瓷的介電常數?頻率、介質損耗?頻率的關系。

The dielectric constants were relatively high either lattice aberrance was tiny or crystal content was large 摻tb薄膜的介電常數在晶格畸變程度小時和在摻tb后使晶體含量出現最大值時都較高。

The disk model is more suited for , predicting the dielectric constants of powders or fine particles at varying densities 碟狀模型可用于預測粉狀或小顆粒農?品之介電常數與密度之關系。