Transformers Magazine, Vol. 11 No. 3, 2024.
Original scientific paper
Photoacoustic method: The contemporary premier method for dissolved gas analysis
Marius Grisaru
Abstract
This article describes the tip of the iceberg of experience, research, debates, and understandings of photoacoustic spectroscopy applications since 2003 [13] when the first online and portable PAS devices appeared for dissolved gas-in-oil measurements.
After the introduction of the pros and cons of the general spectroscopic method for dissolved gas measurements in insulating liquids, in this column, we will dive into the method used probably in the majority of multi gas dissolved gas analyses in 2024 – the photoacoustic method (PAS). This column will describe the advantages and issues that users should be aware of when applying PAS for dissolved gas analysis (DGA). Along with PAS properties, it will include a short comparison with other DGA measurement approaches. It will also describe the main obstacles and challenges in becoming the ultimate gas detection and measurement for DGA measurement technique, as PAS has become in many other domains.
The study will briefly describe the main drives that bring PAS technology to the edge of measurements in different domains along with DGA applications. It will also review the new approaches for obtaining the main advantages of PAS application in dissolved gas analysis.
Keywords
photoacoustic gas measurements; DGA; theory; history applications
Hrčak ID:
319114
URI
Publication date:
9.7.2024.
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