New design of double-core QCM system

Author

Jiang, Haifeng ; Bo, Yuming

Author_Institution

Inst. of Autom., NanJing Univ. of Sci. & Technol., Nanjing, China

fYear

2010

fDate

8-11 May 2010

Firstpage

921

Lastpage

924

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525151

Filename

5525151