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Sensors 2011, 11(1), 864-875; doi:10.3390/s110100864
Article

A Simple Method Based on the Application of a CCD Camera as a Sensor to Detect Low Concentrations of Barium Sulfate in Suspension

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Received: 23 October 2010; in revised form: 10 December 2010 / Accepted: 15 December 2010 / Published: 13 January 2011
(This article belongs to the Section Physical Sensors)
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Abstract: The development of a simple, rapid and low cost method based on video image analysis and aimed at the detection of low concentrations of precipitated barium sulfate is described. The proposed system is basically composed of a webcam with a CCD sensor and a conventional dichroic lamp. For this purpose, software for processing and analyzing the digital images based on the RGB (Red, Green and Blue) color system was developed. The proposed method had shown very good repeatability and linearity and also presented higher sensitivity than the standard turbidimetric method. The developed method is presented as a simple alternative for future applications in the study of precipitations of inorganic salts and also for detecting the crystallization of organic compounds.
Keywords: imaging; precipitation; CCD camera; turbidity imaging; precipitation; CCD camera; turbidity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Caciano de Sena, R.; Soares, M.; Pereira, M.L.O.; Cruz Domingues da Silva, R.; Ferreira do Rosário, F.; Cajaiba da Silva, J.F. A Simple Method Based on the Application of a CCD Camera as a Sensor to Detect Low Concentrations of Barium Sulfate in Suspension. Sensors 2011, 11, 864-875.

AMA Style

Caciano de Sena R, Soares M, Pereira MLO, Cruz Domingues da Silva R, Ferreira do Rosário F, Cajaiba da Silva JF. A Simple Method Based on the Application of a CCD Camera as a Sensor to Detect Low Concentrations of Barium Sulfate in Suspension. Sensors. 2011; 11(1):864-875.

Chicago/Turabian Style

Caciano de Sena, Rodrigo; Soares, Matheus; Pereira, Maria Luiza Oliveira; Cruz Domingues da Silva, Rogério; Ferreira do Rosário, Francisca; Cajaiba da Silva, Joao Francisco. 2011. "A Simple Method Based on the Application of a CCD Camera as a Sensor to Detect Low Concentrations of Barium Sulfate in Suspension." Sensors 11, no. 1: 864-875.


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