Geographical origin discrimination and polysaccharides quantitative analysis of Radix codonopsis with micro near-infrared spectrometer engine [PDF]
Journal of Innovative Optical Health Sciences, 2018 At present, Tradition Chinese Medicine (TCM) industry in China is in the stage from the empirical development to industrial production. Near infrared (NIR) spectroscopy has been widely used in the quality control of TCM’s modernization with its ...
Jiayue Wang +7 more
doaj +5 more sources
Real-Time Quantification of Crude Protein and Neutral Detergent Fibre in Pastures under Montado Ecosystem Using the Portable NIR Spectrometer [PDF]
Applied Sciences, 2021 The Montado is a Mediterranean agro–forestry–pastoral ecosystem. Knowledge of pastures’ nutritional value is critical for farm managers’ decision-making.
Emanuel Carreira +4 more
doaj +4 more sources
Performance of a Portable FT-NIR MEMS Spectrometer to Predict Soil Features
Soil Systems, 2022 NIR spectrometers based on micro-electromechanical systems (MEMS) have become available in the market, with lower prices and smaller dimensions than traditional spectrometers.
Simone Priori +4 more
doaj +3 more sources
Miniature Broadband NIR Spectrometer Based on FR4 Electromagnetic Scanning Micro-Grating
Micromachines, 2020 This paper presents a miniaturized, broadband near-infrared (NIR) spectrometer with a flame-retardant 4 (FR4)-based scanning micrograte. A 90° off-axis parabolic mirror and a crossed Czerny–Turner structure were used for creating an astigmatism-free ...
Liangkun Huang +5 more
doaj +3 more sources
Wafer-Level Vacuum-Packaged Translatory MEMS Actuator with Large Stroke for NIR-FT Spectrometers
Micromachines, 2020 We present a wafer-level vacuum-packaged (WLVP) translatory micro-electro-mechanical system (MEMS) actuator developed for a compact near-infrared-Fourier transform spectrometer (NIR-FTS) with 800–2500 nm spectral bandwidth and signal-nose-ratio (SNR ...
Thilo Sandner +6 more
doaj +3 more sources
Modeling of MOEMS electromagnetic scanning grating mirror for NIR micro-spectrometer
AIP Advances, 2016 In this paper, the mathematical model is developed for researching the detailed electromagnetic mechanism of MOEMS scanning mirror. We present the relationship between spectral range and optical scanning angle.
Ying Zhou +3 more
doaj +2 more sources
Design of a Portable Nondestructive Instrument for Apple Watercore Grade Classification Based on 1DQCNN and Vis/NIR Spectroscopy [PDF]
MicromachinesTo address the challenge of nondestructively identifying watercore disease in apples during growth and maturation, a portable device was developed for real-time grading of apple watercore using visible/near-infrared (Vis/NIR) spectroscopy combined with a
Haijian Wu +8 more
doaj +2 more sources
In situ effective snow grain size mapping using a compact hyperspectral imager
Journal of Glaciology, 2021 Effective snow grain radius (re) is mapped at high resolution using near-infrared hyperspectral imaging (NIR-HSI). The NIR-HSI method can be used to quantify re spatial variability, change in re due to metamorphism, and visualize water percolation in the
Christopher Donahue +2 more
doaj +1 more source
Portable near Infrared Spectroscopy as a Tool for Fresh Tomato Quality Control Analysis in the Field
Applied Sciences, 2021 Portable spectrometers are promising tools that can be an alternative way, for various purposes, of analyzing food quality, such as monitoring in a few seconds the internal quality during fruit ripening in the field. A portable/handheld (palm-sized) near-
Karla R. Borba +5 more
doaj +1 more source
Horticulturae, 2022 Moisture content (MC) is an important indicator to monitor the quality of Longjing tea during processing; therefore, it becomes more critical to develop digital moisture content detection methods for processing.
Xuyan Zong +7 more
doaj +1 more source