Related Experiment Video
Updated: Jan 21, 2026

Ovarian Cancer Detection Using Photoacoustic Flow Cytometry
Published on: January 17, 2020
Immersion photoacoustic spectrometer (iPAS) for arcing fault detection in power transformers
Abstract:
We report on the development of the first immersion photoacoustic spectrometer (iPAS) for arcing fault detection in power transformers. The spectrometer consists of a detection system and an all-optical photoacoustic sensing head mounted inside a small permeable chamber where dissolved C2H2 diffuses while the transformer oil is kept out. Our all-optical iPAS sensor can be placed directly inside an oil bath and measure dissolved C2H2 with the sensitivity and linearity needed for in situ arcing fault detection. Moreover, its fast response time holds great promise for extra-early fault diagnosis.
Related Concept Videos
Fault Types
For line-to-line faults occurring between phases B and C, the...
IR Spectrometers
Mass Spectrometers
Bacterial Transformation
Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
NMR Spectrometers: Overview
UV–Vis Spectrometers

