摘要
Based on piezoelectric ultrasound technology,the paper theoretically analyses the determination of gas concentration and presents a norm-contrast method,which is realized by high-speed chip CPLD (Complex programmable logic device),to determine the concentration of SF_6 accurately with air as background.It is proved that this sensor can determine the concentration of SF_6 with the precision of 50μg/g.The sensor is in the process of producing.
Based on piezoelectric ultrasound technology, the paper theoretically analyses the determination of gas concentration and presents a norm-contrast method, which is realized by high-speed chip CPLD （Complex programmable logic device）, to determine the concentration of SF6 accurately with air as background. It is proved that this sensor can determine the concentration of SF6 with the precision of 50 μg/g. The sensor is in the process of producing.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第A03期157-158,共2页
Rare Metal Materials and Engineering
基金
This work was supported by National Natural Science Foundation of China （10574038）；development project of high-tech industry of universities in Jiangsu （JHB05-08）；Changzhou scientific and technological bureau （CE2005026）.
