Study on Portable Instrument in Measuring Octane Value of Gasoline Based on Method of Dielectric Coefficient;
汽油辛烷值发动机引法法测定法是目前唯一可靠的辛烷值测定法。
The film has an obvious seep effect and the dielectric coefficient may achieve 3-5 times to the pure lead titanate film.
薄膜具有明显的渗流效应，介电常数可以达到纯钛酸铅薄膜的3 ~5倍。
The formula shows that the more the dielectric coefficient, the smaller the maximum electric field strength within cover contact.
公式表明触头盒的介电常数愈大，盒内触头最大电场强度愈小。
So the perfect method of dielectric coefficient is provided, which can reflect many factor's influences on octane value of gasoline.
因此，选用介电常数法测量汽油的辛烷值，可以包含汽油的全部组分对辛烷值的影响，是比较理想的测量方法。
The method of dielectric coefficient is ideal in the measurement of octane value of gasoline, but it can't authenticate the effect of additive in gasoline.
用介电常数法测量汽油辛烷值是比较理想的测量方法，但存在无法分辨添加剂影响的局限性。
The variation of DSCS depends on the larger part between real part and imaginary part of dielectric coefficient. The DSCS and azimuth angle are in proportional relation.
微分散射截面的变化主要依赖于相对介电常数实部、虚部数值较大的一方，并且随粒子取向角的增大而增大。
The present invention discloses a potassium sodium niobate-silver particulate composite material with an ultra-high dielectric coefficient and a preparation method thereof.
本发明公开了一种超高介电常数铌酸钠钾-银颗粒复合材料及制备方法。
Magnetic field distribution of low frequency electromagnetic wave in even medium is analyzed, which is related to the medium's dielectric coefficient and magnetic inductive capacity.
分析了低频电磁波在均匀介质中的磁场分布，其分布与介质的介电常数、磁导率密切相关。
The method of the invention improves the dielectric coefficient of the potassium sodium niobate system greatly, and is capable of meeting the business usage requirement of large-capacity capacitors.
本发明方法大大的提高了铌酸钠钾体系的介电常数，可满足大容量电容器的商业使用需求。
The dielectric constant was almost a constant, while the dielectric loss and temperature coefficient of dielectric constant were sensitive to the sintering conditions.
随着烧结条件的不同，介电常数几乎不变，但介电损耗以及介电常数的温度系数则较为敏感。
Both of the dielectric constant and pyroelectric coefficient decrease with decreasing temperature, no anomalies being observed.
介电常数和热释电系数两者都随温度降低而下降，无反常变化。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
研究了它们的介电常数，热电系数，厚度伸缩振动机电耦合系数及其温度依赖性。
Moreover, with the increase of the working frequency, the dielectric constants of the PST materials decreased, but the Curie temperature and temperature coefficient basically had no variation.
随着测试频率的增加，测得的材料介电常数略有下降，而居里温度与温度系数基本维持不变。
The effect of dielectric constant, dielectric loss factor, coefficient of thermal expansion (CTE)and characteristic impedance of substrate materials on properties of MMB are mainly discussed.
介绍了微波多层板所用基材的性能参数，重点阐述了材料的介电常数、介质损耗、热胀系数、特性阻抗对多层板性能的影响。
Studies have been made on the influences of the second order derivatives of the amplitude and phase of the reflection coefficient on the Gaussian pulse upon reflection from the dielectric mirrors.
研究了介质镜反射系数的振幅与位相二阶导数对飞秒高斯脉冲的影响。
In addition, the dielectric parameter and the filled coefficient also have influence on the dispersion curve.
另外，介质筒的介电常数，填充系数等都对色散曲线有影响。
The piezoelectric strain coefficient and the dielectric constant of PVDF films increased, and the dielectric loss decreased with the increasing of the polarization field.
随着极化电场的升高，PVDF压电薄膜的压电应变系数升高，介电常数升高，介电损耗降低。
An increase in grain size increases the dielectric constant, piezoelectric coefficient and hydrostatic figures of merit, which can be explained by the Okazaki space-charge theory.
晶粒尺寸增加，多孔PZ T陶瓷的介电常数、压电系数和优值增加，并可用Okazaki空间电荷理论解释晶粒尺寸对试样介电和压电性能的影响。
On the other hand, the main problems for the application of CCTO are its high dielectric loss, low breakdown voltage and compatively small I-V nonlinear coefficient.
此外，其较大的介电损耗、较低的压敏电压以及较小的宏观I-V非线性系数限制了其实用化。
The microwave dielectric material has the advantages of high Q value and medium dielectric constant, as well as high production repeatability, adjustable temperature coefficient.
采用如上配方加工出来的微波介质材料，具有高Q值、中介电常数的优点，生产重复性能好。
The microwave dielectric material has the advantages of high Q value and medium dielectric constant, as well as high production repeatability, adjustable temperature coefficient.
采用如上配方加工出来的微波介质材料，具有高Q值、中介电常数的优点，生产重复性能好。
应用推荐