查询词典 radio frequency

Test of chip of 2.1 radio frequency checks area in RF, chip bougie checks normally by enclose a test finally to replace and as far as possible avoid.

在RF测试区域，芯片探针测试凡是被最后的封装测试包办而尽可能的避免掉。

Calibration System is a very important part of Radio Frequency Simulation System.

校准系统是射频仿真系统的重要组成部分。

Pairs of GPS hand-book set of parameters, including a reference to prop up the ball, using the coordinate system, the central meridian, projection models, and a known point data, radio frequency, etc., should be used on your system and to be carried out by full understanding of the task, the only way the process of conducting the tests, in order to ensure that the entire system to work properly.

2对GPS手簿中的参数进行设置，其中包括参考托球、所采用的坐标系、中央子午线、投影模型以及已知点数据、无线电频率等等，要对你所采用的系统和所要进行的任务有充分的了解，只有这样在进行测量的过程中才能保证整个系统正常的工作。

A Federal Communications Commission certification that a given make and model of computer meets the FCC's Class A limits for radio frequency emissions, which are designed for commercial and industrial environments.

一种联邦通信委员会认证，授予那些符合Fcc A 级无线电发射限制的计算机模式。该认证使用与金融和工业环境。

Are specializing in the production of radio frequency coaxial connector accessories business.

是专业生产射频同轴连接器配件的企业。

This research applies the techniques of Radio Frequency Identification to construction management and techniques, as well as develops the RFID information system of construction management and the protection of workers' safety. The equipment of the RFID owns the distinction of exclusive tag and the distinction of cognoscible . Using it as the entrance guard system, it can make management more efficient and also control the site instantaneously. RFID communication has ad-hoc abilities, which can help transfer and store a great quantity of information. It can help spontaneously control the usages of piles of different materials, people's work in process, locations of the vehicles, and manage the construction safety in real time.

本研究拟透过无线射频辨识技术应用於施工管理与技术中，发展建立RFID营造工地施工管理与人员安全维护资讯系统；RFID设备具标签唯一性及辨识性，做为工地门禁管理系统时，拥有可提升效、即时控管等的优点；又RFID通讯具有无线传输能力及可传输储存大量资料，使用RFID便可即时掌握物料堆置情形、进行中之人员施工情况、车辆机械位置与即时各种安全状况，便於进行人机料管理。

A radio frequency IC card and the background to the management of dining computer communications hardware and software design.

主要介绍一种射频IC卡就餐机和后台管理微机通信的硬件和软件设计。

The popularity and widespread application of the contactless radio frequency IC card is also one expression of the information technologies.

信息技术的发展给生产和生活带来巨大的变革，非接触式射频IC卡的普及和广泛应用也是其中的表现之一。

There are other effects as well where the symptoms from beingaffected by radio frequency bursts and covertly implanted capacitordevices.

通过无线电波频率的传播和秘密植入的电容装置的影响，还会有其他的影响和症状。

Then, on the basis of the functional verification, the system architectures of the radio frequency analog front end and the control logic circuit for the passive UHF RFID transponder are studied and designed with low-power design techniques. The RF AFE circuit includes rectifier, matching network, backscatter, regulator, AM demodulator, voltage reference, local oscillator and power on reset circuit, and so on. The control logic circuit contains clock synchronization module, decoding module, coding module, cyclic redundancy checksum module, power management unit, control unit, shift register and memory.

然后，在功能验证的基础上，重点研究了无源超高频射频识别标签芯片射频模拟前端电路和控制逻辑电路的系统架构，并采用低功耗设计技术对其进行了设计，射频模拟前端电路设计包括了整流器、匹配网络、反向散射电路、稳压器、AM解调器、电压参考源、本地振荡器以及上电复位电路等，控制逻辑电路设计包括了时钟同步模块、解码模块、编码模块、CRC校验模块、功率管理单元、控制单元、移位寄存器和存储器等。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。