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UHF-R Wireless features Shure's patented Audio Reference Companding for crystal-clear sound beyond the limits of conventional wireless technology.

超高频- R通信功能舒尔专利的音频参考压缩的水晶般清晰的声音超出传统的无线技术。

Under the contract, a Lockheed Martin-led industry team will develop three types of expendable communications buoys: two submarine-launched tethered buoys that provide real-time chat, data transfer and e-mail capabilities via either Iridium or UHF satellites; and an untethered, acoustic-to-radio frequency gateway buoy that can be launched from a submarine or maritime patrol aircraft to enable two-way data transfer between a submerged submarine and surface assets.

根据合同,洛克希德马丁公司领导的工业团队将开发三种类型的消耗通信浮标:两个潜艇发射栓浮标提供实时聊天,数据传输和电子邮件功能,通过任何铱星或超高频卫星;和非系留,声学对无线电频率网关浮标,可以从潜艇发射或海上巡逻机,使双向之间的数据传输水下潜艇和水面资产。

Recently,three types of UHF RFID Handheld Readers will be put into market one by one,design for diffirent application,range from several decimeters to several meters,can meet your diffirent range requirements based on your projects.

近来,我司蕴酿已久的三款超高频RFID手持机逐一面市,三款手持机根据不同应用市场而设计,从几十厘米到几米的距离,满足您项目对距离的不同要求

At these extremely high frequencies, internal quantum-mechanical oscillations of the excitons themselves were excited.

在这种超高频的情况下,电子空穴的内部量子震荡会被激发出来。

Magnetron management of target capacity and stabilization of an anodi current with the help of the built- in electromagnet, an opportunity of a parallel feed several magnetrons from one rectifier, a low level of the SHF radiation from a cathodic leg is characterized effective.

该磁控管可有效控制输出功率,内建电磁石使提高了它的阳极稳定性,一个整流器可同时供几个磁控管,具有低的阴极超高频辐射。

On the basis of different frequences, three electromagnetic wave logging methods widely used are Electromagnetic Propagated Resistivity Logging with several mega-hertz operation frequency, Ultrahigh-frequency Electromagnetic Wave Logging with above 200 mega-hertz operation frequency and High-frequency Electromagnetic Wave Logging with some dozens of megaherz operation frequency.

根据所选频率的不同,电磁波测井有三类:几兆赫兹电磁波传播电阻率测井、200 MHz以上的超高频电磁波传播测井、源频率为几十兆赫的高频电磁波测井。

Reservoir bed is distinguished by providing the information about resistivity of formations using Electromagnetic Propagated Resistivity Logging method with several mega-hertz operation frequency. The information of dielectric constant of invaded zone is provided using Ultrahigh-frequency Electromagnetic Wave Logging method with above 200 mega-hertz operation frequency, which has no enough radial investigation depth but has a good vertical resolution.

几兆赫兹电磁波传播电阻率测井通过提取地层电阻率的信息来判别油层,以SPPRRYSUN公司源频率为2MHz的EWR-3D测井仪为代表。200 MHz以上的超高频电磁波传播测井具有很高的垂向分辨率,但探测深度太浅,基本上只能反映侵入带介电常数的信息,SCHLUMBERGER公司已推出源频率为1 。1GHz的EPT测井仪。

In order to enhance the performance of the regulator circuit,through the analysis of one stage shunt regulator circuit,this paper proposes a new type of two stage regulator circuit,which can be used in UHF RFID tag.

为了提高稳压器的性能,通过对一级分流稳压电路的研究,提出了一种新型的,可以用于超高频射频标签中的两级分流稳压电路。

A signal disposal cell based on Frequency Mixing is designed in this dissertation, it can reduce the frequency of original UHF signal to facilitate a common sample card and it is not at the expense of Peak-Value and phasic character of original UHF signal.

本文设计了基于混频技术的信号调理单元,降低了超高频信号的频率,方便普通的采集卡采集,同时保留了原始的峰值相位的特征。

The three-dimensional models are successfully imported to ADAMS software through the special interface MECH/PRO, and then the virtual prototype models are founded by toolbox of ADAMS to apply forces and constraints to the parts of the models. The dynamic simulation of the multi-rigid-body rifle model is carried out under the condition of the single shoot by the low firing frequency, high firing frequency and superhigh firing frequency when the rifle model is fixed on the ground, then the dynamic simulation of the multi-rigid-body man-weapon system is operated under the conditions of single and repeating shoots.

通过Pro/E和ADAMS的接口MECH/PRO将三维实体模型顺利导入ADAMS中,并对高频点射步枪和人枪系统施加约束和力,建立高频点射步枪和人枪系统的虚拟样机模型,并且对高频点射步枪及人枪系统进行了较为系统的多刚体系统动力学分析和研究,分别对高频点射步枪固定状态下次高频、高频和超高频点射过程进行了多刚体系统动力学的仿真,在此基础上对高频点射步枪人枪系统点射和连发进行了仿真。

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