We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Design and Analysis of Quartz Crystal Microbalance with a New Ring-Shaped Interdigital Electrode.
- Authors
Wang, Pengyi; Ling, Mingxiang; Li, Minghai
- Abstract
In this paper, a new type of ring-shaped interdigital electrode is proposed to improve the accuracy and repeatability of quartz crystal microbalance. The influence of different types of single finger, dot finger, dot double-finger electrodes on mass sensitivity distribution as well as the optimal proportion of finger and gap width are obtained through multi-physical coupling simulation. The results show that the design criteria of interdigital electrodes will not change with the increase in the number of fingers. The gap width should obey the decrease order from central to edge and be about twice the width of finger. The width of the outermost finger and the radius of the middle dot electrode should be maintained at about 0.4 and 0.2 times of the total electrode radius. An experiment was carried out to verify that the quartz wafer with a dot double-finger electrode has high quality factors and less modal coupling, which can satisfy the engineering application well. As a conclusion, this study provides a design idea for the electrode to maintain a uniform distribution of quartz crystal microbalance mass sensitivity.
- Subjects
QUARTZ analysis; QUANTUM dots; ELECTRODES; QUARTZ crystal microbalances; QUALITY factor
- Publication
Sensors (14248220), 2022, Vol 22, Issue 19, p7422
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s22197422