Open AccessEffect of atmospheric environment on frequency variation of QCM
Author(s) -
Kai Guo,
Bo Jiang,
Xingeng Li,
Lijun Zong,
Shuge Tian,
Gengzeng Zhu,
Yaping Wu,
Mi Zhao,
Chunxu Mi,
Shuo Yao,
Weina Wang,
Fengjie Yan
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/651/4/042052
Subject(s) - quartz crystal microbalance , amplitude , signal (programming language) , jitter , crystal (programming language) , materials science , quartz , range (aeronautics) , frequency spectrum , optics , natural frequency , acoustics , physics , vibration , computational physics , analytical chemistry (journal) , chemistry , electrical engineering , engineering , composite material , organic chemistry , adsorption , chromatography , computer science , spectrum analyzer , programming language
In the natural/electric field environment, quartz crystal contact medium is generally considered as rigid thin film. However, with the increase of time, when the ash coverage reaches the level of microgram, the crystal frequency changes show characteristics similar to those in Newtonian fluid, that is, large damping causes the crystal frequency to change greatly, leading to large stray and chaotic peaks in both amplitude frequency and phase frequency. The spectrum curve amplitude is significantly reduced, the signal jitter is large, and the Q value is significantly reduced. The signal jitter in a small range results in a lot of burrs in the spectrum curve and causes the measurement error.