摘要：This paper presents a fully integrated passive UHF RFID tag chip complying with the ISO18000-6B *** tag chip includes an RF/analog front-end,a baseband processor,and a 512-bit EEPROM *** improve power conversion efficiency,a Schottky barrier diode based rectifier is adopted.A novel voltage reference using the peaking current source is discussed in detail,which can meet the low-power,low-voltage requirement while retaining circuit *** of the analog blocks are designed to work under sub-1 V to reduce power consumption,and several practical methods are used to further reduce the power consumption of the baseband *** whole tag chip is implemented in a TSMC 0.18μm CMOS process with a die size of 800×800μm;. Measurement results show that the total power consumption of the tag chip is only 7.4μW with a sensitivity of -12 dBm.

摘要：LNG薄膜罐相较于全容罐优势明显,近年国内开始引入相关技术。为满足薄膜罐防潮层和隔热层施工工艺环境需求,需要设置空调系统。本文综合考虑安全和节能2个因素,针对薄膜罐高大空间近壁面施工区域的空调系统进行精细化设计与研究。以针对某薄膜罐计算得到的新风量和冷热负荷为基础,对冬夏季空气处理过程和近壁面空调区域气流组织进行分析,并采用ANSYS模拟软件对空调系统的设计进行模拟计算验证。研究结果表明,本文提出的空调系统能够较好地满足施工工艺环境需求,可为LNG薄膜罐的安全建设和节能运行提供保障。