ArticleSensors (Basel, Switzerland)2023
All-Optical, Air-Coupled Ultrasonic Detection of Low-Pressure Gas Leaks and Observation of Jet Tones in the MHz Range.
Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Resonant Ultrasound Spectroscopy Detection Using a Non-Contact Ultrasound Microphone.Sensors (Basel, Switzerland) · 2025Article
- Development of an AI-based image/ultrasonic convergence camera system for accurate gas leak detection in petrochemical plants.Heliyon · 2024Article
- Special Issue on Acoustic Sensors and Their Applications (Vol. 1).Sensors (Basel, Switzerland) · 2023Article
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Authors and funding
2 authors.
Funding
Abstract
We used an ultrasensitive, broadband optomechanical ultrasound sensor to study the acoustic signals produced by pressurized nitrogen escaping from a variety of small syringes. Harmonically related jet tones extending into the MHz region were observed for a certain range of flow (i.e., Reynolds number), which is in qualitative agreement with historical studies on gas jets emitted from pipes and orifices of much larger dimensions. For higher turbulent flow rates, we observed broadband ultrasonic emission in the ~0-5 MHz range, which was likely limited on the upper end due to attenuation in air. These observations are made possible by the broadband, ultrasensitive response (for air-coupled ultrasound) of our optomechanical devices. Aside from being of theoretical interest, our results could have practical implications for the non-contact monitoring and detection of early-stage leaks in pressured fluid systems.
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Registered trials
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