Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer

A portable spectrophotometer has been developed to provide on-site detection of soybeans’ moisture, protein, and fat contents in a nondestructive manner. The core module of this soybean analyzer is a micro Fourier transform infrared spectrometer (μFTIR) based on an electrotherm...

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Main Authors: Donglin Wang, Peng Wang, Huan Liu, Hongqiong Liu, Jicheng Zhang, Weiguo Liu, Huikai Xie
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/8727485/
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author Donglin Wang
Peng Wang
Huan Liu
Hongqiong Liu
Jicheng Zhang
Weiguo Liu
Huikai Xie
author_facet Donglin Wang
Peng Wang
Huan Liu
Hongqiong Liu
Jicheng Zhang
Weiguo Liu
Huikai Xie
author_sort Donglin Wang
collection DOAJ
description A portable spectrophotometer has been developed to provide on-site detection of soybeans&#x2019; moisture, protein, and fat contents in a nondestructive manner. The core module of this soybean analyzer is a micro Fourier transform infrared spectrometer (&#x03BC;FTIR) based on an electrothermal microelectromechanical systems (MEMSs) mirror. The electrothermal MEMS mirror is capable of generating a large piston motion of 320 <italic>&#x03BC;</italic>m at only 8.5 Vdc. The tilting of the MEMS mirror plate during its piston scanning affects the spectral repeatability of the &#x03BC;FTIR. In this paper, the effect of the MEMS mirror tilting on the spectral repeatability is analyzed and an automatic tilt realignment algorithm is developed to maintain high spectral repeatability, which is better than 0.01 in long term use. The &#x03BC;FTIR module has a footprint of 125&#x00A0;mm&#x00A0;&#x00D7;&#x00A0;90&#x00A0;mm with a height of 50&#x00A0;mm. The whole instrument is designed for portability and on-site operation as well as the convenience of loading soybeans. More than 300 samples of soybeans are collected, 80&#x0025; of which are used to establish a prediction model using chemometrics methods. The standard error is no more than 3&#x0025; when using the prediction model to test the remaining 20&#x0025; samples.
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institution Kabale University
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publishDate 2019-01-01
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spelling doaj-art-34e209b4b7f1464c983a6c072e4c10972025-08-20T03:32:46ZengIEEEIEEE Photonics Journal1943-06552019-01-0111311010.1109/JPHOT.2019.29202738727485Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform SpectrometerDonglin Wang0https://orcid.org/0000-0002-5428-5596Peng Wang1Huan Liu2Hongqiong Liu3Jicheng Zhang4Weiguo Liu5Huikai Xie6https://orcid.org/0000-0002-8393-0021School of Optoelectronic Engineering, Xi&#x0027;an Technological University, Xi&#x0027;an, ChinaSchool of Optoelectronic Engineering, Xi&#x0027;an Technological University, Xi&#x0027;an, ChinaSchool of Optoelectronic Engineering, Xi&#x0027;an Technological University, Xi&#x0027;an, ChinaWuxi WiO Technologies Co., Ltd., Wuxi, ChinaWuxi WiO Technologies Co., Ltd., Wuxi, ChinaSchool of Optoelectronic Engineering, Xi&#x0027;an Technological University, Xi&#x0027;an, ChinaSchool of Optoelectronic Engineering, Xi&#x0027;an Technological University, Xi&#x0027;an, ChinaA portable spectrophotometer has been developed to provide on-site detection of soybeans&#x2019; moisture, protein, and fat contents in a nondestructive manner. The core module of this soybean analyzer is a micro Fourier transform infrared spectrometer (&#x03BC;FTIR) based on an electrothermal microelectromechanical systems (MEMSs) mirror. The electrothermal MEMS mirror is capable of generating a large piston motion of 320 <italic>&#x03BC;</italic>m at only 8.5 Vdc. The tilting of the MEMS mirror plate during its piston scanning affects the spectral repeatability of the &#x03BC;FTIR. In this paper, the effect of the MEMS mirror tilting on the spectral repeatability is analyzed and an automatic tilt realignment algorithm is developed to maintain high spectral repeatability, which is better than 0.01 in long term use. The &#x03BC;FTIR module has a footprint of 125&#x00A0;mm&#x00A0;&#x00D7;&#x00A0;90&#x00A0;mm with a height of 50&#x00A0;mm. The whole instrument is designed for portability and on-site operation as well as the convenience of loading soybeans. More than 300 samples of soybeans are collected, 80&#x0025; of which are used to establish a prediction model using chemometrics methods. The standard error is no more than 3&#x0025; when using the prediction model to test the remaining 20&#x0025; samples.https://ieeexplore.ieee.org/document/8727485/MEMS mirrorFTIRNIR spectroscopychemometricselectrothermal actuationsoybean analyzer
spellingShingle Donglin Wang
Peng Wang
Huan Liu
Hongqiong Liu
Jicheng Zhang
Weiguo Liu
Huikai Xie
Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
IEEE Photonics Journal
MEMS mirror
FTIR
NIR spectroscopy
chemometrics
electrothermal actuation
soybean analyzer
title Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
title_full Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
title_fullStr Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
title_full_unstemmed Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
title_short Nondestructive On-Site Detection of Soybean Contents Based on An Electrothermal MEMS Fourier Transform Spectrometer
title_sort nondestructive on site detection of soybean contents based on an electrothermal mems fourier transform spectrometer
topic MEMS mirror
FTIR
NIR spectroscopy
chemometrics
electrothermal actuation
soybean analyzer
url https://ieeexplore.ieee.org/document/8727485/
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