Development of an Ultrasonic Jig and Signal Analysis for Two-Phase Regime Detection

Abstract

The construction of an ultrasonic sensor jig and the ensuing signal analysis methods used for the identification of two-phase flow regimes are presented in this work. The sensor jig, which provides precise alignment of eight ultrasonic sensors (four transmitters and four receivers) around a testing vessel, was the main focus of the design of a portable ultrasonic tomography system. Accurate data collection depends on constant sensor alignment and non-invasive installation, which the sensor jig's Autodesk Fusion design makes possible. To handle the ultrasonic signals, electronic measurement circuits were developed, which included a signal generator and a signal conditioning unit. The system can distinguish between liquid and solid phases in a vertical position, according to experimental results. Variations based on sensor and phantom positions are shown by analyzing the first highest peak values of the received signals. The results demonstrated that the system successfully detected variations in the testing conditions, with output signal amplitudes ranging from 2 V to 15 V. This shows how sensitive the system is to changes in the two-phase medium. The sensor jig and signal analysis techniques that have been developed offer a basis for educational applications in real-time monitoring of multiphase flows and ultrasonic tomography.