Issue 5, 2022

Smartphone imaging spectrometer for egg/meat freshness monitoring

Abstract

Data transmission between spectroscopy equipment and mobile terminals is critical to realising hand-held field-level monitoring. Currently, on-the-go (OTG) communication technology is a convenient and efficient method of data transmission for mobile devices. However, few people associate spectroscopy equipment with smartphones through the OTG port. This study developed a portable imaging spectrometer with a spectral resolution of approximately 12 nm in the visible-near-infrared band (400–1000 nm). It can be connected to a smartphone through the USB-OTG port to process the spectral signal through the smartphone's system on a chip (SoC). It also displays real-time spectral images of the food samples through the smartphone's screen. Using a support vector machine (SVM) to classify the spectra of the various experimental samples (e.g. eggs and pork), the model prediction accuracy rate is approximately 90%. This further proves the reliability of the proposed smartphone imaging spectrometer for monitoring the freshness of food samples onsite.

Graphical abstract: Smartphone imaging spectrometer for egg/meat freshness monitoring

Article information

Article type
Paper
Submitted
11 Okt. 2021
Accepted
30 Dec. 2021
First published
04 Janv. 2022

Anal. Methods, 2022,14, 508-517

Smartphone imaging spectrometer for egg/meat freshness monitoring

T. Wang, F. Shen, H. Deng, F. Cai and S. Chen, Anal. Methods, 2022, 14, 508 DOI: 10.1039/D1AY01726H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements