A new imaging system for real-time process control

Imran Saied, Meribout Mahmoud

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, a new tomography technique called electrical charge tomography for two-phase flow imaging is presented. The probe consists of few pair of electrodes which are electrically energized to generate electrical charges within the fluid under test. The intensity of these charges depends on the chemical and physical properties of the fluid, as well as to its molecular distribution. Another group of electrodes surrounding the cross section of the fluid under test are used to capture the induced electrical charges. These are then converted into an electrical signal using a high sensitive charge amplifier. A postprocessing unit which consists of an analog to digital converter, followed by an field programmable gate array (FPGA) module is then used for high level signal processing (i.e., a dedicated dynamic thresholding algorithm) and image reconstruction. Experimental results demonstrate the capability of the system to accurately generate 2-D cross-sectional images, where the error is lower by up to 14% when using another electrical capacitance (ECT) tomography probe. The other advantage of this technique over ECT is the reduced data acquisition time, since in ECT a minimum time is required for the charge and discharge of the capacitance in order to achieve acceptable accuracy. This makes the probe another attractive concept for future tomography systems targeting real-time applications.

Original languageBritish English
Article number7908977
Pages (from-to)3844-3852
Number of pages9
JournalIEEE Sensors Journal
Volume17
Issue number12
DOIs
StatePublished - 15 Jun 2017

Keywords

  • Electrical capacitance tomography
  • Field programmable gate array
  • Gas pipeline monitoring
  • Imaging systems
  • Solid contaminants measurement

Fingerprint

Dive into the research topics of 'A new imaging system for real-time process control'. Together they form a unique fingerprint.

Cite this