Title :
New design of double-core QCM system
Author :
Jiang, Haifeng ; Bo, Yuming
Author_Institution :
Inst. of Autom., NanJing Univ. of Sci. & Technol., Nanjing, China
Abstract :
QCM(Quartz Crystal Microbalance) is a piezoelectricity sensor with nanogram precision. However twice measurements of no-load and a load are necessary in the tradition, which will result in frequency errors when environments(such as temperature and humidity) changes. This paper affords a new design of double-core QCM for solving the time-delay problem in the QCM traditional measuring method. Reference QCM is introduced, QCM signal drive and acquisition circuit based on correlation theory is designed and frequency characteristic curve of double-core QCM is analyzed.
Keywords :
delays; microbalances; piezoelectric transducers; QCM signal drive; acquisition circuit; correlation theory; double-core QCM system; frequency characteristic curve; frequency errors; piezoelectricity sensor; quartz crystal microbalance; time-delay problem; Circuits; Communication system control; Frequency measurement; Humidity measurement; Materials testing; Resonant frequency; Signal design; Temperature control; Time measurement; Vibration measurement; EEACC:7320G; PACC:8280T; QCM; correlation theory; double-core; frequency characteristic curve;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5705-2
DOI :
10.1109/ICMMT.2010.5525151
