Publication

Material Characterization with PZE actuated Suspended Microchannel Resonators

2019
Student Projects

Abstract

SMRs have been used in numerous applications for life science where most samples are contained in liquid. In this work we investigate how a biological medium, such as phosphate buffer solution (PBS), affects the Signal to Noise ratio (SNR) of PZE actuated SMRs. We report that SNR is directly linked to the conductivity of the solution, that is inevitable for biological applications. Furthermore, we look into a novel application for these devices in the food industry, namely the characterization of olive oil. We prove that it is possible to distinguish two different olive oils by analysing the quality factor and resonance frequency, that are linked to the viscosity and density of the fluid.

Official source

https://infoscience.epfl.ch/entities/publication/188ea51f-a38d-4b66-bfa4-ac0999784b0d

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2019
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/188ea51f-a38d-4b66-bfa4-ac0999784b0d

About this result

Related concepts (32)

Olive oil

Olive oil is a liquid fat obtained by pressing whole olives, the fruit of Olea europaea, a traditional tree crop of the Mediterranean Basin, and extracting the oil. It is commonly used in cooking for frying foods or as a salad dressing. It can also be found in some cosmetics, pharmaceuticals, soaps, and fuels for traditional oil lamps. It also has additional uses in some religions. The olive is one of three core food plants in Mediterranean cuisine, together with wheat and grapes.

Signal-to-noise ratio

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise. SNR is an important parameter that affects the performance and quality of systems that process or transmit signals, such as communication systems, audio systems, radar systems, imaging systems, and data acquisition systems.

Food industry

The food industry is a complex, global network of diverse businesses that supplies most of the food consumed by the world's population. The food industry today has become highly diversified, with manufacturing ranging from small, traditional, family-run activities that are highly labour-intensive, to large, capital-intensive and highly mechanized industrial processes. Many food industries depend almost entirely on local agriculture, animal farms, produce, and/or fishing.

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Material Characterization with PZE actuated Suspended Microchannel Resonators

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