Turbidimetry by Image Degradation Analysis
| Autor: | Jose Mauricio Lopez-Romero, Francisco J. Medellín-Rodríguez, Francisco Villaseñor-Ortega, Isaac C. Sanchez, Lydia M. Contreras-Martinez, Gabriel Luna-Bárcenas, Alejandro J. Gimenez |
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| Rok vydání: | 2020 |
| Předmět: |
Measure (data warehouse)
020208 electrical & electronic engineering Video camera 02 engineering and technology Image degradation law.invention Optical imaging Transmission (telecommunications) law 0202 electrical engineering electronic engineering information engineering Environmental science Noise (video) Turbidimetry Electrical and Electronic Engineering Turbidity Instrumentation Remote sensing |
| Zdroj: | IEEE Transactions on Instrumentation and Measurement. 69:7574-7579 |
| ISSN: | 1557-9662 0018-9456 |
| Popis: | Here, we describe a method to measure turbidity in liquids by probing a graphic pattern by optical transmission. Data are collected by a video camera, and a mathematical algorithm is used to correlate image loss with turbidity. We report high-resolution turbidity measurements of nanoparticle colloids to assess the proposed methodology. Measurements are differentially performed, which helps reduce noise from external sources. Using nephelometric turbidity units (NTU) standards, we obtain detectable measurements in a broad range of NTU from 1.95 to 1000. By implementing the proposed methodology, we proposed a video-based inexpensive yet reliable turbidimetry instrument. |
| Databáze: | OpenAIRE |
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