Therefore this dissertation designed a ultra-high frequency shield resonance loop antenna ( SRLA ) by which lots of different PD signals have been sampled . Meanwhile .
据此,本文设计了 一超 高频外置屏蔽谐振环天线(ShieldResonanceLoopAntenna,简称SRLA),并用此天线在实验室采集了大量不同模拟缺陷产生的PD信号;
Ultra-high frequency modulation charateristics of domestic GaAlAs semiconductor la-sers are studied experimentally and analysed theoretically .
本文对国产GaAlAs半导体激光器的 超 高频调制特性进行了实验研究和理论分析。
1MHz / 4kW ultra-high frequency induction heating device Research on a novel Resonant Inverter for Super High Frequency Induction Heating Power Supply
1MHz/4kW 超 高频感应加热电源的研究与实现超高频感应加热电源的新型谐振变换器研究
An experiment on the transmission and reflection of ultra-high frequency electromagnetic waves within limestone
超 高频电磁波在灰岩中的透射与反射试验
The study is based on market microstructure theory and ultra-high frequency data .
本文针对中国市场的特殊性,以市场微观结构理论为理论基础,利用 超 高频交易数据,从理论和实证角度深入研究了我国市场微观结构噪音的特点及其对价格行为的影响。
Ultra-high frequency modulation characteristics of semiconductor lasers and the phenomena of relaxation oscillation induced by pulsing current are analysed theoretically .
本文从理论上分析了半导体激光器的 超 高频调制特性和脉动电流引起的张弛振荡现象。
Obtaining the partial discharge ( PD ) characteristic is one of the key issues of PD ultra-high frequency ( UHF ) detection . To study the relation between PD pulse current and its UHF signal is helpful to the insulation diagnosis .
获取局部放电(PD)特征信息是局部放电 特 高频(UHF)检测的关键问题之一,研究UHF信号与PD脉冲电流之间的关系有助于绝缘缺陷的诊断。
Ultra-high frequency nuclear magnetic resonance spectrometer
超 高频核磁共振波谱仪 高 阻抗核磁共振波谱仪
Compared with near field RFID systems ultra-high frequency RFID ( UHF RFID ) system has the advantages of a longer communication distance and a higher data rate .
与近场通信的RFID系统相比, 超 高频RFID(UHFRFID)系统具有更远的通信距离和更快的数据传输速率。
The standards and applications of RFID technology at both the low frequency and high frequency are already quite mature and the Ultra-High Frequency ( UHF ) RFID technology becomes a focus and hot issue in this field with the appearance of the ISO / IEC18000-6C protocol .
该技术在低频、高频段的标准和应用已经相当成熟,伴随着ISO/IEC18000-6C协议的提出, 超 高频(UHF)RFID技术逐渐成为该领域研发的重点和热点。
Based on the conventional Class-E resonant high-frequency power amplifier a new control scheme used in Active-clamped Class-E inverter for ultra-high frequency induction heating is proposed .
以传统的E类高频功率放大电路为基础,提出了应用于 高频感应加热电源的有源箝位E类逆变电源的一种新型控制方法。
The two ultra-high frequency outer antenna sensors are made with wide band and narrow band respectively . The gain of two sensors is both greater than 1 and VSWR of the sensors is less than 2 in effective bandwidth range .
研制了宽带和窄带两种 超 高频外置天线传感器,两种传感器增益均大于1,驻波比在其有效带宽范围内均小于2,均能用于GIS局部放电 超高频检测。
In the research outlook this paper suggests that the change of lockup shareholders high-frequency data and ultra-high frequency data will be future research directions .
在研究展望中,本文提出未来将会从限售股股东变化、高频数据和 超 高频数据进行进一步的研究。
GIS partial discharge ; ultrasonic detection ; ultra-high frequency detection .
GIS局部放电;超声波检测法; 超 高频检测法。
Records of each transaction on the financial market data referred to as ultra-high frequency data In the financial field .
在金融数据中,记录金融市场上每笔交易的数据称为 超 高频数据( ultra-high-frequencydata)。
Ultrasonic detection is easy to locate but ultrasonic attenuates severely during its spread ; ultra-high frequency detection method can avoid power system disturbances which are difficult to identify by conventional electrical testing methods and this detection can significantly improve signal to noise ratio .
超声波检测法易于定位,但是传播中衰减厉害; 超 高频检测法可以避开常规电气测试方法中难以识别的电力系统干扰,显著提高局部放电检测的信噪比。
Against the above background this paper basis on a large amount of research and a wide range of literature the ultra-high frequency ( UHF ) PD detection technology is researched An antenna Archimedes which can be used to detect the UHF signals is designed .
基于以上考虑,本文在广泛调研和大量查阅文献的基础上,对变压器局部放电的 超 高频检测技术进行了研究,研制了可用于变压器局部放电超高频检测的阿基米德天线。
Ultra-high Frequency Detection and Analysis for Partial Discharge in High-voltage Cable Accessories
甚 高频 与 超 高频测向器高压电缆附件局部放电 超 高频检测与分析
The research and design of the ultra-high frequency ( variable frequency ) electromagnetic induction power for boiler
电磁搅拌器- 电弧炉的 超(变) 频电磁感应锅炉电源的研究与设计
This paper puts forward a long memory stochastic conditional durations ( LMSCD ) model for ultra-high frequency ( UHF ) durations series and provides a kind of spectrum likelihood estimation method .
文章针对股票市场的 超 高频持续期序列,提出了长记忆随机条件持续期模型(LMSCD),并给出了模型参数的极大谱似然函数估计方法。
The Study of Ultra-high Frequency High Stabling Phase-locked Oscillator
高稳定 特 高频(UHF)锁相振荡源研究
Study on Anti-interference with New Type GIS PD Ultra-High Frequency Signal Sensor
新型GIS局放 超 高频传感器抑制干扰的研究
Design and Test Methods of Balun Transformer for Ultra-high Frequency Dipole
超 高频偶极子天线对称变换器设计和测试方法
A New Control Scheme and Simulation Research for Ultra-High Frequency Class-E Inverter
超 高频E类逆变电源的新型控制方法及仿真研究
Clinical Application of Ultra-high Frequency Ultrasonic Detection Method in the Diagnosis of Burn Depth
超 高频超声在烧伤创面深度诊断中的临床应用
But With the application and development of UHF RFID technology the methods of printing UHF antenna have failed to meet the performance requirements and this paper attempts to use inkjet printing to produce ultra-high frequency antenna .
随着UHFRFID技术的应用与发展,超高频电子标签中用到的超高频天线的印制方式却满足不了印刷制作性能的要求,所以,本文试图探讨用喷墨印刷的方式来制作 超 高频天线。
Mathematical model is established and studied for partial discharge ( PD ) in Gas Insulated Switchgear ( GIS ) using ultra-high frequency ( UHF ) method which is based on physical model of metallic outshoot insulation defect and UHF inner-loop sensor .
在已设计的高压导体金属突出物缺陷物理模型的基础上,针对GIS局部放电 超 高频内置传感器检测的该缺陷产生的局放信号波形,采用数据拟合方法建立了用于仿真研究的数学模型。
Utilizing new-type of portable GIS partial discharge ultra-high frequency signal sensor the partial discharge measurement has been carried out with 7 kinds of fault models to simulate discharges in GIS .
利用一种新型的便携式GIS局放 超 高频(UHF)信号传感器在实验室中对7种GIS故障模型进行了局放测量。
Ground Penetrating Radar ( GPR ) is an underground testing technique that determines the depth and shape of the underground media by launching ultra-high frequency pulse electromagnetic wave and analyzing the electromagnetic echo reflected .
探地雷达是利用发射 超 高频窄脉冲电磁波,通过分析反射的电磁回波,来判断地下介质形状和深度的地下探测技术。
In this paper based on comparison of various detection methods the author proposed a method for partial discharge location which combined ultrasonic detection and ultra-high frequency detection .
本文在对比各种检测方法后,提出了利用超声波和 超 高频联合进行局部放电定位的方法。
n.超高频