正切值

用含PEGS的工作电解液应用到铝电解电容器中，通过寿命试验，对铝电解电容器的电容量、漏电流、损耗正切值、寿命等性能进行研究。

The best pH value of PEGS as additive is 6.0.With appling the working electrolyte which contains the synthesized PEGS in the aluminum electrolytic capacitor , we research its capacitance , leakage current , loss tangent , life and other properties by length of life test .

返回指定角度的双曲正切值。

Returns the hyperbolic tangent of the specified angle .

随着Fe含量增加，复介电常数和介电损耗正切值明显减小，但是复磁导率和磁损耗正切大幅增大。

With doping Fe , the permittivity and its loss tangent clearly decrease , but the permeability and its loss tangent increase evidently .

结果表明：木粉含量、偶联剂和双螺杆挤出机的螺杆转速都对复合材料的存储模量（E′）和损耗角正切值（tanδ）有一定影响。

The results show that the mechanical properties of composites are affected by wood flour loading , coupling agent and rotation speed of the double screws of extruder .

函数的作用是：返回一个指定角度参数所对应的反双曲正切值。

The atanh () function returns the inverse hyperbolic tangent of an angle .

变压器介质损耗角正切值的测量与计算

Measurement and Calculation of tan δ of Transformer

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 & Determination for industrial frequency dielectric constant and dielectric loss angular tangent value

总体来看，介电损耗角正切值也有随着碳化温度升高而增大的变化趋势。

In general , the dielectric loss also had rising trend as carbonizing temperature increased .

介电频谱测试表明，纳米氧化锌的加入使复合材料的介电常数降低，但损耗角正切值略微增大。

Dielectric spectrum tests show that nano-make composite dielectric constant reduce , loss tangent value increase .

GB/T767-1965电力电缆介质损失角正切值测量方法（交流高压电桥法）

Methods of measurement of value of dielectric loss tangent for power cables ( high voltage alternating current bridge method )

结果表明，随着电激励信号频率的增大，果品的电容、电阻以及损耗角正切值均减小；

The test results indicate that with the increase of frequency , the capacitance , resistance and losses tangent decrease .

介绍了聚酯薄膜横向的热收缩率对电容器充放电后损耗角正切值的影响。

The effects of PET film traverse heat shrinkage rate on loss angle tangent value of capacitor charge-discharge process were introduced .

对该型电容器进行性能测试，所得电容偏差都在2%~5%范围，损失角正切值小于0.05%；

Experiments show that it has a capacitance tolerance of 2 % ~ 5 % and a dissipation factor lower than 0.05 % .

对13个水稻品种米饭质地的动性弹性率、动性损失、损失正切值和米饭感官食味品质及其相关性作了研究。

Cooked rice texture ( tested using texture analyzer ) and eating quality of 13 varieties were measured and their relationship were analyzed .

设计变量直接取吃水、横倾角和纵倾角，不必预先计算倾角的正切值，使用方便。

Using the mean draft , heel angle and trim angle as the design variables , it need not calculate tangent values of the angles and is more convenient for application .

本文主要讨论介质损耗角正切值（介质损耗因素）的在线监测，研究如何提高介质损耗角正切值的测量稳定性和精度。

In this paper , on-line monitoring of dielectric loss angle 's tangent ( dielectric loss factor ) was discussed mainly , in order to improve the accuracy and stability of monitoring data of dielectric loss .

提出了用截面转角的正切值定义截面的转动位移，并将虚功中力和位移的关系描述为力不随位移拖动的模式。

The conception of virtual work was modified by defining the tangent of a rotating angle of a cross-section as the rotational displacement and explaining the relationship of forces and displacements as forces not dragging along the displacements .

磁性液体水平传感器的最大量程，由容器内径与容器内壁总长之比，即磁性液体水平传感器最大倾角的正切值决定。

The maximal measuring range of this magnetic fluid level sensor would determined by the ratio between internal diameter and inwall length of the vessel of experimental model , that is to say , it would decided by the tangent of maximal level inclination angle .

若信号电压小于临界值，苹果的电容、电阻以及损耗角正切值保持不变，若电压大于该值，随着电压的增大，电容和电阻值迅速下降，损耗角正切值急剧增大；

If the voltage is less than the critical value , the capacitance , resistance and loss angle tangent keep constant ; if it is bigger than the values , with the increase of voltage , the values of capacitance and resistance decrease rapidly and loss angle tangent increases sharply .

在低温段（-10~40℃），随着老化时间的增加，损耗角正切tanδ值有明显下降，β松弛峰也越来越明显。

In the range of low temperature ( - 10 ~ 40 ℃), the values of tan δ obviously decrease and the peaks of β relaxation become more clear with increase of aging time .

与聚苯胺相比，镍铁氧体/聚苯胺复合材料的介电损耗角正切tanδε值与磁损耗角正切tanδm值都增大。

Dielectric loss tangent and magnetic loss tangent of the nickel ferrite / polyaniline composites are higher than those of the polyaniline .