LED-based NIR spectrometer module for hand-held and process analyser applications

Jouko Malinen (Corresponding Author), Markku Känsäkoski, Raimo Rikola, Colin Eddison

Research output: Contribution to journalArticleScientificpeer-review

38 Citations (Scopus)

Abstract

This paper discusses an electronically scanned, small size 32-wavelength NIR spectrometer unit developed for use as a building block in hand-held composition meters as well as in spectroscopic sensors for process automation.
The design relies on a linear LED array light source and a fixed grating monochromator. The benefits of the LED spectrometer unit are a highly accurate wavelength scale, with fixed precalibration for subnanometer tolerances and compatibility with a wide operating temperature range, thanks to internal temperature stabilisation.
A series of LED spectrometer modules was manufactured for short wave near infrared (SW-NIR) specifications, covering the range from 832 to 1048 nm and a testing program was arranged to characterise typical performance and the spread of the key optical parameters.
Potential applications for this SW-NIR wavelength scale can be seen in food, agricultural and petrochemical analysis. The design can also be modified for other wavelengths, for which LEDs are currently available, i.e. from 400 nm to beyond 2 μm, which will further widen the scope of possible applications in the field of NIR spectroscopy and colour analysis.
Original languageEnglish
Pages (from-to)220-226
JournalSensors and Actuators B: Chemical
Volume51
Issue number1-3
DOIs
Publication statusPublished - 1998
MoE publication typeA1 Journal article-refereed
Event4th European Conference on Optical Sensors and Biosensors - Munster, Germany
Duration: 29 Mar 19981 Apr 1998

Fingerprint

Light emitting diodes
Spectrometers
light emitting diodes
modules
spectrometers
Wavelength
wavelengths
Infrared radiation
Monochromators
Diffraction gratings
monochromators
automation
operating temperature
food
Petrochemicals
compatibility
Light sources
specifications
light sources
coverings

Cite this

Malinen, Jouko ; Känsäkoski, Markku ; Rikola, Raimo ; Eddison, Colin. / LED-based NIR spectrometer module for hand-held and process analyser applications. In: Sensors and Actuators B: Chemical. 1998 ; Vol. 51, No. 1-3. pp. 220-226.
@article{807a9536e72b4d1a9372d7097b13242e,
title = "LED-based NIR spectrometer module for hand-held and process analyser applications",
abstract = "This paper discusses an electronically scanned, small size 32-wavelength NIR spectrometer unit developed for use as a building block in hand-held composition meters as well as in spectroscopic sensors for process automation. The design relies on a linear LED array light source and a fixed grating monochromator. The benefits of the LED spectrometer unit are a highly accurate wavelength scale, with fixed precalibration for subnanometer tolerances and compatibility with a wide operating temperature range, thanks to internal temperature stabilisation. A series of LED spectrometer modules was manufactured for short wave near infrared (SW-NIR) specifications, covering the range from 832 to 1048 nm and a testing program was arranged to characterise typical performance and the spread of the key optical parameters. Potential applications for this SW-NIR wavelength scale can be seen in food, agricultural and petrochemical analysis. The design can also be modified for other wavelengths, for which LEDs are currently available, i.e. from 400 nm to beyond 2 μm, which will further widen the scope of possible applications in the field of NIR spectroscopy and colour analysis.",
author = "Jouko Malinen and Markku K{\"a}ns{\"a}koski and Raimo Rikola and Colin Eddison",
year = "1998",
doi = "10.1016/S0925-4005(98)00198-1",
language = "English",
volume = "51",
pages = "220--226",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "1-3",

}

LED-based NIR spectrometer module for hand-held and process analyser applications. / Malinen, Jouko (Corresponding Author); Känsäkoski, Markku; Rikola, Raimo; Eddison, Colin.

In: Sensors and Actuators B: Chemical, Vol. 51, No. 1-3, 1998, p. 220-226.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - LED-based NIR spectrometer module for hand-held and process analyser applications

AU - Malinen, Jouko

AU - Känsäkoski, Markku

AU - Rikola, Raimo

AU - Eddison, Colin

PY - 1998

Y1 - 1998

N2 - This paper discusses an electronically scanned, small size 32-wavelength NIR spectrometer unit developed for use as a building block in hand-held composition meters as well as in spectroscopic sensors for process automation. The design relies on a linear LED array light source and a fixed grating monochromator. The benefits of the LED spectrometer unit are a highly accurate wavelength scale, with fixed precalibration for subnanometer tolerances and compatibility with a wide operating temperature range, thanks to internal temperature stabilisation. A series of LED spectrometer modules was manufactured for short wave near infrared (SW-NIR) specifications, covering the range from 832 to 1048 nm and a testing program was arranged to characterise typical performance and the spread of the key optical parameters. Potential applications for this SW-NIR wavelength scale can be seen in food, agricultural and petrochemical analysis. The design can also be modified for other wavelengths, for which LEDs are currently available, i.e. from 400 nm to beyond 2 μm, which will further widen the scope of possible applications in the field of NIR spectroscopy and colour analysis.

AB - This paper discusses an electronically scanned, small size 32-wavelength NIR spectrometer unit developed for use as a building block in hand-held composition meters as well as in spectroscopic sensors for process automation. The design relies on a linear LED array light source and a fixed grating monochromator. The benefits of the LED spectrometer unit are a highly accurate wavelength scale, with fixed precalibration for subnanometer tolerances and compatibility with a wide operating temperature range, thanks to internal temperature stabilisation. A series of LED spectrometer modules was manufactured for short wave near infrared (SW-NIR) specifications, covering the range from 832 to 1048 nm and a testing program was arranged to characterise typical performance and the spread of the key optical parameters. Potential applications for this SW-NIR wavelength scale can be seen in food, agricultural and petrochemical analysis. The design can also be modified for other wavelengths, for which LEDs are currently available, i.e. from 400 nm to beyond 2 μm, which will further widen the scope of possible applications in the field of NIR spectroscopy and colour analysis.

U2 - 10.1016/S0925-4005(98)00198-1

DO - 10.1016/S0925-4005(98)00198-1

M3 - Article

VL - 51

SP - 220

EP - 226

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

IS - 1-3

ER -