在压力衰减测试中,温度变化对结果的影响是非常大的。
Temperature CHANGES during a pressure decay test will have MAJOR impact on test results.
该系统用于进行空气衰减测试和将几个组件安装到阀盖中。成品阀盖可以自动拆卸,并放置到一台输送机上。
This system performs an air decay test and installs several components into valve covers. The finished covers are automatically removed and placed onto an accumulating conveyor.
为方便实际测试,REAL实验室的核心是射频衰减网络,可模拟多个无线电的真实部署。
To facilitate realistic testing, the heart of real is the radio frequency attenuation network, a system designed to simulate realistic field conditions for multiple radios.
一种新的精确测试光纤衰减方法的探讨。
A new method of precise measurement of optical fiber attenuation.
结合试验过程中遇到的问题,给出了改进的直流衰减法测试电路。
Combined with the problems during the experiment, design a improved testing circuit of Direct Current Attenuation Method.
X1探头﹕没有衰减﹐输入阻抗跟示波器输入阻抗一样(通常是1兆欧)。由于对测试电路有很大的负载影响﹐所以很少使用这种探头。
X1 probe: no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.
本文分析了集成化可变光学衰减器的工作原理、工艺制作和测试技术。
This paper introduces the principal theory, process and test technology of variable optical attenuator.
卫星在轨测试是监测卫星平台及其遥感器在轨运行情况及性能衰减程度的有效手段,也是卫星数据处理和应用的前提与基础。
Satellite on-orbit test is a useful way to monitor satellite platform, on-orbit status and attenuation degree of sensors, and is the premise and base for satellite data's processing and application.
注意在使用正、负测试电压时电流的指数衰减情况。
Note the exponential decay in the current using both a positive and a negative test voltage.
采用理论分析和试验测试相结合的方法,对弹丸破片的速度衰减规律进行了研究。
By combining theory analysis with test measurement, the velocity attenuation regularity of projectile fragments was discussed.
需要更多的测试来决定亮度衰减对一般用户而言的问题严重性到底有多少。
More testing is required to determine how big of a problem this will be for the average user.
在实验室内用频谱振幅比较法模拟测试了储集层岩石在高温高压下的弹性波振幅衰减值。
Attenuation of wave amplitude of reservoir rock at simulated high temperature and pressure is measured with spectrum-amplitude comparison mediod in laboratory.
为了提高现场测试的效率和数据的准确度,该文提出了一种基于噪声衰减原理而建立虚拟噪声源的方法。
In order to improve the efficiency of on-the-spot test and accuracy of the data, the authors proposed a new method to set up virtual noise sources based on the noise decay principle.
采用X纤维为吸波涂料的吸收剂,制作不同厚度的吸波涂层,测试相应的雷达波反射衰减值。
Microwave Absorbing coatings with different thickness were prepared by fiber X as the Absorbing agent, and the reflecting attenuations of the radar wave were researched.
通过对不同应用的光纤波导结构的制造、性能测试和分析,指出了波导结构设计与光纤衰减、模场直径、弯曲损耗和波导色散等的关系。
Based on manufacture, performance test and analysis of different optical fiber waveguides, the relationships between waveguide and loss, MFD, bend loss, waveguide dispersion are deduced respectively.
通过测试研究了单模光纤衰减的纵向均匀性,并对目前单模光纤衰减的纵向均匀性作出了评价。
It studies the vertical uniformity of single mode fiber attenuation through measurement and gives its evaluation on the uniformity of present single mode fibers.
利用配有电压自动衰减电路的铁电材料测试系统测量了PZT铁电体材料样品的电滞回线。
The PZT ferroelectric slice sample was measured by the system with the automatic voltage-decaying circuit, and hysteresis loops of the sample was exhibited.
本文讨论了常用的噪声系数测试方法—Y因子法中高频及中频衰减器本身失配和测试系统中其它部分的影响所造成的测试误差。
This paper discussed the error in the measurement of noise figure—The method of Y factor , The error is caused by mismatch of RF attenuater and IF attenuater and the others in the measurement system.
通过恒流充放电法测试不同电容器的电容性能,并考察了超级电容器的电容衰减率、循环稳定性和循环寿命。
Capacitive performance of various supercapacitors is tested by galvanostatic charge and discharge. And capacitive decay rate, cyclical stability and cycle life are also investigated.
SDI测试中水样流速随时间按指数规律衰减,机械堵塞是滤膜的主要堵塞污染过程。
The flow rate of water sample in SDI test decays with time exponentially. The mechanical block is the main blockage process of membrane fouling.
介绍了光纤接续中由横向偏移带来的、轴向偏移造成的、纵向偏移产生的以及被接光纤具有不同的参数时所造成的附加衰减产生的机理及其测试方法。
The paper introduces excess loss based on lateral offset, axial offset, longitudinal offset, and different parameter value within a fiber splice, then, discusses the measurement method of excess loss.
循环寿命测试,球磨的样品经过50次循环其容量衰减到40%,非球磨样品经25次的循环即衰减到同样程度。
Cycling life tests investigated that the capacity of alloy prepared by ball milling decreased to 40% after 50 cycles, while the solid-state diffusion method just 25 cycles.
第四阶段内靶材上的剩余电荷通过测试电路放电,靶电势呈指数规律衰减。
The fourth stage, the remainder charges discharges by the testing circuit, the target electric potential reduces exponentially.
本文利用荧光衰减寿命作为传感参量,在保持系统环境温度不变的条件下对荧光寿命的应变响应进行了测试。
The strain response of the fluorescence lifetime is tested at a constant temperature with the fluorescence lifetime as the sensing parameter.
本文首先介绍了紧缩型电磁兼容(EMC)暗室归一化场地衰减(nsa)的测试方法和理论值的计算模型。
NSA (the normalized site attenuation) measurement and theoretical calculation model of compact EMC chamber is firstly introduced in this paper.
本文介绍高频光电导衰减法硅单晶少子寿命测试技术的改进。
Improvement of high frequency photoconductive decay technique for measuring silicon minority carrier lifetime is described.
针对铁电材料测试系统中不同测试信号电压的差别,设计了电压自动衰减电路。
In view of the different voltage used in system for measuring ferroelectric materials, the automatic voltage-decaying circuit was designed.
岩体声波衰减品质因素Q值是反映岩体完整性程度的综合参数。寻找稳定、可靠、简便的计算方法是将Q值应用于现场测试的关键。
The quality factor Q of the acoustic wave attenuation is a comprehensive parameter reflecting the integrality degree of rock mass.
岩体声波衰减品质因素Q值是反映岩体完整性程度的综合参数。寻找稳定、可靠、简便的计算方法是将Q值应用于现场测试的关键。
The quality factor Q of the acoustic wave attenuation is a comprehensive parameter reflecting the integrality degree of rock mass.
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