Measurements of Concentration differences between Liquid Mixtures using Digital Holographic Interferometry

• Autorzy: Guerrero-Méndez C. , Saucedo-Anaya T. , Araiza-Esquivel M. , Balderas-Navarro R. E. , López-Martínez A. , Olvera-Olvera C.

Identyfikatory

DOI

10.1515/mms-2017-0002

• Języki publikacji: EN

Abstrakty

EN

We present an alternative method to detect and measure the concentration changes in liquid solutions. The method uses Digital Holographic Interferometry (DHI) and is based on measuring refractive index variations. The first hologram is recorded when a wavefront from light comes across an ordinary cylindrical glass container filled with a liquid solution. The second hologram is recorded after slight changing the liquid’s concentration. Differences in phase obtained from the correlation of the first hologram with the second one provide information about the refractive index variation, which is directly related to the changes in physical properties related to the concentration. The method can be used − with high sensitivity, accuracy, and speed − either to detect adulterations or to measure a slight change of concentration in the order of 0.001 moles which is equivalent to a difference of 0.003 g of sodium chloride in solutions. The method also enables to measure and calculate the phase difference among each pixel of two samples. This makes it possible to generate a global measurement of the phase difference of the entire sensed region.

Słowa kluczowe

EN

Digital Holographic Interferometry; refractive index measurements; phase difference; full-field measurements

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2017
• Tom: Vol. 24, nr 1
• Strony: 19--26
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wzory

Twórcy

autor

Guerrero-Méndez C.

• Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Ramón López Velarde 801, C.P. 98000, Zacatecas, Mexico

autor

Saucedo-Anaya T.

• Universidad Autónoma de Zacatecas, Unidad Académica de Física, Calzada Solidaridad Esq. Con Paseo La Bufa S/N, C.P. 98060, Zacatecas, Mexico

autor

Araiza-Esquivel M.

• Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Ramón López Velarde 801, C.P. 98000, Zacatecas, Mexico

autor

Balderas-Navarro R. E.

• Instituto de Investigación en Comunicación Óptica (IICO-UASLP), Karakorum 1470, Lomas 4ta. Sección, C.P. 78210, San Luis Potosí, Mexico

autor

López-Martínez A.

• Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Ramón López Velarde 801, C.P. 98000, Zacatecas, Mexico

autor

Olvera-Olvera C.

• Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería Eléctrica, Ramón López Velarde 801, C.P. 98000, Zacatecas, Mexico

Bibliografia

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Uwagi

EN

One of the authors (Carlos Guerrero-Méndez) acknowledges CONACYT (México) for providing a partial financial support for this work.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).