The experimental results show that the piezoelectric charge constant(d33),relative dielectric constant(εr) and dielectric dissipation loss factor(tanδ) decrease dramatically with increasing amount of doped Co2O3 in a rang from 0 to 0.
4%,介电损耗因子tanδ大幅降低,同时压电常数d33和介电常数εr降低。
At low temperature,dielectric constant ε(ε' ,ε'' ),dielectric loss tangent tgδis small at ω<104Hz or ω> Hz.
用2801西林电桥研究了0℃～160℃聚丙烯腈(PAN)碳纤维的介电损耗因数ε、介质损耗角正切tgδ的频率特性;用微电导测试仪研究了温度、电场对PAN碳纤维的电导率γ的影响。
Progress in dielectric loss of microwave dielectric ceramics;
微波介质陶瓷的介电损耗研究进展
The Study on Microwave Dielectric Loss of Al_2O_3 Ceramics Modified by Y_2O_3;
Y_2O_3改性Al_2O_3陶瓷微波介电损耗研究
Research on the ordering and dielectric loss in A(B′B″)O_3 complex perovskite
A(B′B″)O_3型钙钛矿材料中有序结构与介电损耗的研究
This paper described the process for solving the problem of un-qualified data of dielectric loss factor and capacitance in end screen of neutral bushing to ground during the overhaul of phase A,No.
文章记述了在方正500kV变电站2号变A相变压器大修过程中如何解决中性点套管末屏对地的介质损耗因数及电容量数据不合格问题的过程。
Methods The AC impedance of rat sural muscle tissues was measured using the Agilent 4294A impedance analyzer, then the electrophysiological properties of the normal rat sural muscle cells were established in the respect of cell dielectric spectroscopy, Cole-Cole plots, spectrum of loss factor and loss tangent.
方法:使用Agilent4294A阻抗分析仪测量大鼠腓肠肌组织的交流阻抗,通过细胞介电谱、Cole-Cole图、介电损失因子△ε″和介电损耗角正切△tgδ的频谱分析,建立了正常大鼠腓肠肌细胞的频域电生理特性参数(介电参数)。
Relation between acoustical absorption coefficient and loss factor in reverberant field with statistical energy analysis(SEA);
统计能量分析混响声场中吸声系数与损耗因子关系研究
Calculation of frequency and loss factor of composite sandwich structures;
复合夹层结构频率及损耗因子的计算
The effects of additional magnets on the loss factor of a smart magnetic partially constrained layers clamped-clamped beam;
附加磁体对局部约束阻尼固支梁损耗因子的影响
Study of Dielectric Dissipation and Molecular Orientation in C60 Crystal;
C_(60)晶体的介电损耗与分子取向研究
Dielectric loss of ZnO varistor ceramics by variable temperature spectroscopy
ZnO压敏陶瓷介电损耗的温度谱研究
Influence of Defects to the Conductivity and Dielectric Loss of Microwave Ceramics BaNd_2Ti_4O_(12);
缺陷对BaNd_2Ti_4O_（12）微波介电陶瓷材料电导和介电损耗的影响
Preparation of Low Loss Tangent AlN Ceramics and BN-AlN Composites
低介电损耗AlN陶瓷及BN-AlN基陶瓷材料研究
Analysis of the Dielectric Loss in the Transmission Line Based on Time Domain BLT Equation
基于时域BLT方程的传输线介电损耗分析
The Dielectrics Characteristics of Base Materials for High Frequency Printed Circuit Boards and the Progressin Modification
高频PCB基材介电常数与介电损耗的特性与改性进展
Research on the ordering and dielectric loss in A(B′B″)O_3 complex perovskite
A(B′B″)O_3型钙钛矿材料中有序结构与介电损耗的研究
high-frequency dielectric loss measuring instrument
高频电介质损耗测量仪
The Dielectric Properties of CaCu_3Ti_4O_(12) with Low-loss Dielectrics Doping;
低损耗介质掺杂的CaCu_3Ti_4O_（12）介电性能研究
Dielectric Loss Test and Analysis on Windings of EM
关于电机线圈介质损耗的试验和分析
Research on On-Line Monitoring for Dielectric Loss of Capacitive Equipment;
电容型设备介质损耗因数在线监测研究
The Study on the On-line Dielectric Loss Tangent Monitoring Technique of Capacitive-Type Equipment;
电容型设备介质损耗因数在线检测技术的研究
Application of lossy dielectric to image method measurement device
损耗电介质在镜像法测试装置中的应用
Dielectric Loss Factor(tgδ) of the Test and Improvement of the Resistant Electric Bridge
介质耗损因数tgδ的西林电桥测试法及其改进
EFFECT OF TEMPERATURE ON DIELECTRIC CONSTANT AND DIELECTRIC LOSS FACTOR OF INSULATING PAPER
温度对绝缘纸介电系数和损耗角正切的影响
Vulcanized rubber--Determination for industrial frequency dielectric constant and dielectric loss angular tangent value
GB/T1693-1981硫化橡胶工频介电常数和介质损耗角正切值的测定方法
Vulcanized rubber--Test method for HF dielectric constant and dielectric loss angular tangent value
GB/T1694-1981硫化橡胶高频介电常数和介质损耗角正切值的测定方法
Method of test for dielectric dissipation factor(tgδ)of cable paper at power frequence (Schering bridge method)
GB/T3334-1982电缆纸介质损耗角正切(tgδ)试验方法电桥法