On-line Detection of Valve Gas Leakage by Sensing Untrasonic Impedance
- Resource Type
- Conference
- Authors
- Yu, Xinhai; Liu, Longhua
- Source
- 2020 3rd World Conference on Mechanical Engineering and Intelligent Manufacturing (WCMEIM) WCMEIM Mechanical Engineering and Intelligent Manufacturing (WCMEIM), 2020 3rd World Conference on. :716-721 Dec, 2020
- Subject
- Computing and Processing
Liquids
Ultrasonic variables measurement
Volume measurement
Apertures
Valves
Size measurement
Velocity measurement
Leakage
on-line detection
ultrasonic sensor
valve
bubble hydrodynamics
- Language
In this work, the motion and deformation of single bubbles rising in quiescent ionic liquid of [bmim]PF6 and water were investigated by injecting bubbles into these two liquids through orifices with different inner diameters. Bubble size, aspect ratio and velocity were measured by processing images taken by high-speed camera, operated at 1000 frames per second with a resolution of 1280_512 pixels.