Intelligent Flow Regime Identification Using IR Sensor and 3.5mm Headphone Jack

• Published in: International journal of automation and smart technology Vol. 8; no. 3; pp. 113 - 118
• Main Authors: G. C. Keerthi Vasan, Muniyandi Venkatesan
• Format: Journal Article
• Language: English
• Published: 30.06.2025
• ISSN: 2223-9766; 2223-9766
• DOI: 10.5875/ausmt.v8i3.1519

Multiphase flow occurs in variety of applications in Industries and in nature. One of the most important subcategory of multiphase flow is gas-liquid flows predominantly found in evaporators, condensers, micro-reactors, cryogenic engines and in compact heat exchangers. In the present study, air-water two phase flows in a 4.7mm inner diameter glass tube with 0.3mm thickness is characterized using an IR transceiver and a headphone jack. The output of the IR receiver is sent to the laptop using a 3.5mm headphone jack. The novelty in the present work is that this eliminates the need for a dedicated micro-controller/ DAQ system to process the data. A simple program written in python is used to process the input of the mic and provide amplitude and frequency information which identifies the flow regime. High-Speed Images captured simultaneously are used to validate the output obtained using the headphone jack.