Asset Details
Do you wish to reserve the book?
A Compact Highly Sensitive Cone–Sphere Photoacoustic Spectroscopy Sensor for Real-Time Detection of Dissolved Acetylene in Transformer Oil
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A Compact Highly Sensitive Cone–Sphere Photoacoustic Spectroscopy Sensor for Real-Time Detection of Dissolved Acetylene in Transformer Oil
Do you wish to request the book?
A Compact Highly Sensitive Cone–Sphere Photoacoustic Spectroscopy Sensor for Real-Time Detection of Dissolved Acetylene in Transformer Oil
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A Compact Highly Sensitive Cone–Sphere Photoacoustic Spectroscopy Sensor for Real-Time Detection of Dissolved Acetylene in Transformer Oil
2025
Overview
In this work, we report a compact and highly sensitive photoacoustic spectroscopy (PAS) system based on a cone–sphere coupled photoacoustic cell (CSC-PAC) for real-time detection of trace acetylene (C[sub.2]H[sub.2]) dissolved in transformer oil. The sensing module integrates a conical resonator with a spherical cavity, forming a hybrid structure that effectively enhances photoacoustic confinement and energy coupling efficiency. Finite element thermo-viscoelastic simulations were employed to optimize the cavity geometry and resonance conditions for maximum signal generation. Experimental results demonstrate a strong linear correlation between the photoacoustic signal and C[sub.2]H[sub.2] concentration (R[sup.2] > 0.999), with a sensitivity of 2.45 µV·ppm[sup.−1]. Allan deviation confirms a detection limit of 18.6 ppb is achieved at a 400 s averaging time, confirming excellent system stability. The miniaturized light-acoustic spectroscopy sensor, with a total volume of 7.5 mL and a rapid response time of 25.5 s, provides a high-performance and field-deployable platform for on-site monitoring of high-voltage power equipment and other industrial applications.
Publisher
MDPI AG
Subject
