التفاصيل البيبلوغرافية
| العنوان: |
Trace Acetylene Gas Detection Based on a Miniaturized Y-Sphere Coupled Photoacoustic Sensor |
| المؤلفون: |
Xiaohong Chen, Sen Wang, Dongming Li, Zhao Shi, Qiang Liang |
| المصدر: |
Sensors, Vol 24, Iss 22, p 7274 (2024) |
| بيانات النشر: |
MDPI AG, 2024. |
| سنة النشر: |
2024 |
| المجموعة: |
LCC:Chemical technology |
| مصطلحات موضوعية: |
Y-sphere coupled photoacoustic sensor, photoacoustic spectroscopy, C2H2 gas detection, Chemical technology, TP1-1185 |
| الوصف: |
In this work, a miniaturized Y-sphere coupled photoacoustic (YSCPA) sensor is proposed for trace C2H2 gas detection. The cavity volume of the designed YSCPA sensor is about 0.7 mL. The finite element method (FEM) has been performed to analyze the comparative performance of the YSCPA sensor and T-type PA sensor, indicating that the first-order resonance frequency (FORF) of the newly proposed YSCPA sensor has been reduced by half while the PA signal has been improved by a factor of 3 compared to the T-type PA sensor. C2H2 is employed as a target gas to test the performance of the YSCPA sensor. The experimental test results show that the response time of the gas is 26 s. The minimum detection limit (MDL) reaches 189 ppb at a lock-in integration time of 1 s. By extending the lock-in integration time to 100 s, the MDL of the designed PA sensor is reduced to 18.1 ppb. The designed YSCPA sensor has the advantages of small size, low gas consumption, simple structure, and high sensitivity, which is expected to be an effective solution for rapid and real-time monitoring of dissolved C2H2 gas in transformer oil. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1424-8220 |
| Relation: |
https://www.mdpi.com/1424-8220/24/22/7274; https://doaj.org/toc/1424-8220 |
| DOI: |
10.3390/s24227274 |
| URL الوصول: |
https://doaj.org/article/d9a11ed8f3954f1b8de6a22e39540221 |
| رقم الانضمام: |
edsdoj.9a11ed8f3954f1b8de6a22e39540221 |
| قاعدة البيانات: |
Directory of Open Access Journals |
Full Text Finder