1) contact impedance
接触阻抗
1.
The contact impedance on gold plated surface after long-term exposure to air indoor has been measured by an impedance analyzer.
采用阻抗分析仪对室内长期暴露镀金样品腐蚀表面进行接触阻抗特性实验,结果表明:接触阻抗随触点的表面污染、腐蚀状况及信号频率而变化;接触阻抗中电阻分量随表面污染程度增大出现电阻增高、不稳定,而阻值亦出现随频率上升的趋势;当表面腐蚀物严重堆积时,接触电容成为主要影响参数。
2.
In former research the effects of electric contact on signal transmission have relations with a lot of factors, such as contact impedance and the frequency of transmission signal.
以前的研究表明,接触故障对信号传输的影响与很多因素有关,如接触阻抗和信号传输频率。
3.
A model of contact impedance is introduced and its influence on high speed signal transmission is analyzed.
提出射频同轴插接器的高频接触阻抗模型,研究它对高速信号传输的影响。
2) noncontact impedance control
非接触阻抗控制
1.
To achieve stable and safe performance in some case involveing high impact, noncontact impedance control is necessary.
对于机器人与高速运动目标接触等存在较大冲击的应用买例,进行有效的非接触阻抗控制是实现机器人稳定、安全作业的必然要求。
3) base contact impedance
基极接触阻抗
4) contact resistance
接触电阻
1.
Stable distribution analysis to statistical evaluation of contact resistance in aluminum alloy spot welding;
基于稳定分布的铝合金点焊接触电阻
2.
On the contact resistance between graphite/polypropylene composite plate and carbon paper;
石墨／聚丙烯复合板与碳纸间的接触电阻
3.
Study of prediction method for contact resistance based on experiment constitutive relation;
基于实验本构关系的接触电阻预测方法研究
5) interfacial contact resistance
接触电阻
1.
The electrochemical methods were investigated in a simulated PEMFC environment and the volt-ampere technique was applied to measure interfacial contact resistance between the sample and carbon paper.
以304不锈钢为研究对象,采用电化学方法测定其在模拟PEMFC环境下的极化曲线和对应于PEMFC工作电位下的恒电流极化曲线,用伏安法测量304不锈钢表面氧化膜/钝化膜与碳纸之间的接触电阻。
2.
The 304 stainless steel treated by electroplating Cr and plasma-assisted nitriding processes was investigated by electrochemical methods in the simulated PEMFC environments, and interfacial contact resistance between the samp.
测定了经过镀铬后再离子氮化的304不锈钢在模拟PEMFC环境下的电化学性能,测量了氮化层与碳纸之间的接触电阻。
3.
The interfacial contact resistance between the sample and carbon paper are measured with volt-ampere technique.
以304不锈钢做为研究对象,测定了其在模拟PEMFC环境下的极化曲线,极化时间分别为4 h和10 h的交流阻抗谱,用伏安法测量了304不锈钢表面氧化膜/钝化膜与碳纸之间的接触电阻。
6) contact resistance
接触热阻
1.
Effect of heat transfer on the estimation of contact resistance;
换热影响下的接触热阻估计
2.
It is presented that using the finned structure at sufficiently small intervals and reducing the contact resistance at the interface can improve sorp.
改变网状结构尺寸以及内表面接触热阻,通过计算机模拟得到金属肋片结构参数与吸附动力的关系,以及对提高吸附反应器工作效率的影响。
3.
The contact resistance between granular adsorbent (zeolite/polyaniline composite) and copper surface,and between shaped adsorbent and copper surface has been tested.
测试了颗粒吸附剂（沸石／聚苯胺复合物）、成型吸附剂与铜表面之间的接触热阻以及导热胶对吸附剂与铜表面之间的接触热阻的影响。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条