An optoelectronic sensor system for industrial multipoint and imaging spectrometry

Esko Herrala, Timo Hyvärinen, Osmo Voutilainen, Jorma Lammasniemi

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

Abstract

The paper presents a compact integrated sensor system for industrial multipoint and imaging optical spectrometry applications. The sensor consists of a compact prism-grating-prism spectrograph combined with a matrix detector and signal preprocessing electronics. All the optical components are on a single optical axis, resulting in ease of assembly and adjustment, small size and low cost. The spectrograph can be used in the wavelength range 380–820 nm, with a resolution of 3 nm. In imaging spectrometry one axis of the matrix detector is used for the wavelength spectrum and the other for spatial location. The built-in microcontroller-based signal-preprocessing electronics compresses the CCD data before transfer. Test results for a 16-channel spectrometer demonstrate the suitability of the system for on-line multipoint colour measurement.

Original languageEnglish
Pages (from-to)335 - 338
Number of pages4
JournalSensors and Actuators A: Physical
Volume61
Issue number1-3
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

Fingerprint

Spectrographs
preprocessing
Prisms
Optoelectronic devices
Spectrometry
prisms
spectrographs
Electronic equipment
Detectors
Imaging techniques
Wavelength
sensors
detectors
Sensors
Data transfer
Microcontrollers
matrices
electronics
Charge coupled devices
wavelengths

Keywords

  • imaging spectrometry
  • industrial applications
  • multipoint spectrometry
  • optoelectronic sensors

Cite this

Herrala, Esko ; Hyvärinen, Timo ; Voutilainen, Osmo ; Lammasniemi, Jorma. / An optoelectronic sensor system for industrial multipoint and imaging spectrometry. In: Sensors and Actuators A: Physical. 1997 ; Vol. 61, No. 1-3. pp. 335 - 338.
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An optoelectronic sensor system for industrial multipoint and imaging spectrometry. / Herrala, Esko; Hyvärinen, Timo; Voutilainen, Osmo; Lammasniemi, Jorma.

In: Sensors and Actuators A: Physical, Vol. 61, No. 1-3, 1997, p. 335 - 338.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Voutilainen, Osmo

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PY - 1997

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AB - The paper presents a compact integrated sensor system for industrial multipoint and imaging optical spectrometry applications. The sensor consists of a compact prism-grating-prism spectrograph combined with a matrix detector and signal preprocessing electronics. All the optical components are on a single optical axis, resulting in ease of assembly and adjustment, small size and low cost. The spectrograph can be used in the wavelength range 380–820 nm, with a resolution of 3 nm. In imaging spectrometry one axis of the matrix detector is used for the wavelength spectrum and the other for spatial location. The built-in microcontroller-based signal-preprocessing electronics compresses the CCD data before transfer. Test results for a 16-channel spectrometer demonstrate the suitability of the system for on-line multipoint colour measurement.

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