The author has developed a dissipation factor measuring system using the variable frequency series resonant voltage.
本文研制了一套在调频串联谐振电压下进行介质损耗因数测量的系统。
Different on-site test methods are Compared, and it is shown that power frequency series resonant circuit is relatively simple and feasible, and is therefore preferable.
对不同现场试验方法的比较说明:工频串联谐振回路简单易行,是比较可取的;同时需对振荡操作波和超低频法等作进一步研究。
This paper introduces a high-frequency series resonant charing method of solid pulsed laser power source, basing on constant current charging of digital control technology.
介绍了一种高频串联谐振充电的固体脉冲激光电源及其数字化控制恒流充电技术。
As per the equipment capacity and test equivalence demands, this paper demonstrates the necessity, urgency and feasibility of applying variable-frequency series-resonant voltage withstand tests.
为此,根据设备容量和试验等效性要求,论证采用变频串联谐振耐压试验的必要性、紧迫性和可行性。
If you graph the frequency of various possible results, it's possible to see a pattern of peaks at random-looking series and valleys at the ones that chance would seem to disfavor.
如果用图表画出不同可能性结果的频率,你可能会看到一种模式,貌似随机的序列处于峰值,那些碰巧看上去不太受人喜欢的序列位于谷底。
Part 9 of this series covered how to combine internal and external Radio Frequency Identification (RFID) Web services into a composite application in the originating SOA.
本系列的第9部分讨论了如何将内部和外部射频识别(RadioFrequency Identification,RFID)Web服务组合为原始soa中的组合应用程序。
The frequency comb is generated by a laser that produces a series of veryshort, equally spaced pulses of light (like the teeth of a comb) across a broadspectrum of frequencies.
这个频率梳理装置由一束产生一系列非常短,空间上平均分布(就好象梳齿一样)、频率上广泛分布的光脉冲产生的。
Crewed by civilians, Impeccable is equipped with an active low-frequency towed array with a series of modules, each housing two high-powered transducers.
“无瑕号”由平民操作,装备有主动探测的低频声纳,具备一系列的模块,每一模块配有两个大马力的传感器。
When they turned these measurements into a series of waves using a mathematical trick called a Fourier transform, the waves increased in magnitude as their frequency decreased.
当他们把测量结果通过傅立叶变换分解成一组波时,这组波随着频率减小而增幅巨大。
Design work has also built a system is very particular about the power divider, it has a lower frequency than traditional units in terms of series inductance values.
系统还内置一个设计做工都非常讲究的功率分频器,它有着相对传统而言更低的低频单元串联电感值。
The working processes of the frequency-tracking phase-shift PWM controlled full bridge power supply load series resonant type DBD ozone generation power system are analyzed.
系统的分析了频率跟踪移相PWM控制全桥供电的串联谐振负载式DBD型臭氧发生器电源系统的工作过程。
Solid and strong low frequency is the basic characteristic of LADM series.
固体和强烈的低频是一系列的阿霉素脂质体的基本特征。
Derived and solved the governing vibration equations of orthotropic membrane, and obtained the power series formula of nonlinear vibration frequency of rectangular membrane with four edges fixed.
得到了按矩形四边固支边界考虑时,膜材大挠度非线性振动频率的幂级数表达式。
Frequency coefficients for each series are shown in the catalogue or specifications.
各个系列的频率系数已在产品目录或规格书中列出。
Abstract: Series leading correction, in the frequency domain of the system design, is an indirect method.
摘要:串联超前校正,是在频域内进行的系统设计,是一种间接地设计方法。
The emission frequency of the Karman vortex street occurred in series from the blades and tongue is varing with the running condition.
将流程泵叶轮叶片和压水室的隔舌看作旋涡发生体,在不同运行工况下在叶片后缘以及隔舌两侧串联发生的卡门涡街的发射频率是不同的。
This paper describes the need to transform the continuous periodic signal in time domain to the discrete signal in frequency domain by using Fourier Series (FS).
讨论了利用傅里叶级数把连续周期时域信号转换成离散的频域信号的必要性。
Experiment was made to verify the results of analyses and calculation. Comparisons with the features around the series resonance frequency are given for some aspects.
文章用实验验证了分析计算的结果,并在某些方面给出了与串联谐振频率附近特性的比较。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
采用德国西门子IGBT变频,电压反馈串联谐振电路。变换效率高达97.5%以上。
The main products has: DSP series intelligent digital frequency shift, radio speaker series, the interface microphone series, meeting series, wireless microphone series.
主要产品有:DSP智能数字移频系列、广播音箱系列、界面麦克风系列、会议系列、无线麦克风系列。
The reactor value choosing method of capacitor and reactor circuit resonance frequency point in series is put forward.
提出了按电容支路串联谐振频率点选择电抗值的方案。
The characteristics of the TO70XX series SAS OEFS under power frequency are measured, and the procedures used in power frequency electric field measurement with TO70XX series sensors are recommended.
测定了TO 70XX系列单屏蔽传感器工频下的输入输出特性曲线,给出了将TO 70 XX系列单屏蔽传感器应用于实际工频电场测量的方案。
A series of microcrystalline silicon thin films were fabricated by very high frequency plasma-enhanced chemical vapor deposition at different substrate temperatures (T_s).
采用甚高频等离子体增强化学气相沉积技术制备了不同衬底温度的微晶硅薄膜。
The periodic occurrence of any sedimentary event may be expressed by the frequency in the time series.
某一沉积事件周期性出现的频繁程度可用时间序列中的频率来表示。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
利用傅里叶级数对其进行了频谱分析,计算了次数小于19次的各次谐波电流均方根值的频谱数据。
This paper proposes a method by translating the series from time domain to frequency domain, then to a string sequence.
采用变换法则对时间序列进行从时域到频域的转换,再将转换后的数据按照一定的规则变换成字符序列;
At present, GARCH type models have been employed to model these high frequency financial time series due to their ability to capture the dynamic characteristics.
近年来GARCH模型被广泛地用于对变动频率很高的金融时间序列建模,它能较好地抓住此类时间序列的动态特征。
The (frequency) converter (adopted) multilevel technology with cells series, which could obtain stepped SPWM waveforms, and could drive ordinary motor directly with no output filter.
该变频器采用单元串联多电平技术,可以得到阶梯SPWM波形,无需输出滤波器,可直接驱动普通电动机。
This high power thin film attenuator series exhibit excellent high frequency characteristics.
这种高功率薄膜衰减器系列具有卓越的高频特性。
This thin film attenuator series exhibit excellent high frequency characteristics.
这种薄膜衰减器系列具有卓越的高频特性。
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