Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume 46, Issue 11, Pages 7509-7511Publisher
INST PURE APPLIED PHYSICS
DOI: 10.1143/JJAP.46.7509
Keywords
dielectric constant measurement; capacitive sensor; AT-cut quartz crystal oscillator; LC resonance circuit; frequency
Categories
Ask authors/readers for more resources
Using a novel capacitive sensor, which we call a quartz crystal capacitive sensor (QCCS), the vapor sensing of acetaldehyde was performed. QCCS consists of a parallel plate capacitor and a quartz crystal oscillator, which has an inductance-capacitance (LC) resonance property. The developed sensor can indirectly convert the perturbation of the permittivity of sampled gas into the deviation of the oscillation frequency of the quartz crystal, and determine the characteristics of chemicals existing between the parallel plate with a high accuracy. The results of an organic vapor sensing test indicated that QCCS had a high sensitivity [6.1 ppm (30 Hz)] to the permittivity of acetaldehyde.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available