文献类型：期刊文献

中文题名：HF频段场强测量方法研究

英文题名：Research on HF magnetic field intensity measurement methods

作者：李丽[1]

第一作者：李丽

机构：[1]新乡学院机电工程学院

第一机构：新乡学院机电工程学院

年份：2012

卷号：40

期号：2

起止页码：72-75

中文期刊名：河南科技学院学报：自然科学版

语种：中文

中文关键词：HF频段;磁场强度;读写机具;测量

外文关键词：HF frequency range; magnetic field intensity; read-write implement; measure

摘要：在依据国际标准14443协议建立的射频识别系统中,读写机具通过磁场给卡片供电,并用磁场做信息传输的载体,磁场强度对卡片的工作稳定性和信息交互的完整性影响很大.HF频段场强测量仪将天线部分置于待测读写机具的可读写区域内,天线部分感测待测读写机具的负载磁场强度,并将感测信号输送给信号处理显示部分,信号处理显示部分根据不同的卡片调整相应参数,以达到模拟代替不同实际卡片的效果,从而可在较宽的参数范围内测量读写机具的带负载磁场强度是否满足要求.
For RFID which based on ISO 14443,the read-write implement supplies power to the card through the magnetic field,and used as the carrier of information transmission,the impact from the magnetic field strength is great for the stability of the cards work and the integrity of information exchange.This method places the antenna part within the read and write region of the test read-write implement,the antenna part senses and tests the magnetic field strength of load,and transports the sensor signal to processing and display section,the signal processing and display section adjusts the corresponding parameters based in different cards,in order to achieve the effects of simulated instead of the different actual cards,which can measuring the magnetic field strength of read-write implement if can meet the requirements in a wide range of parameters.