SE0602039L - Device used in wavelength modulation spectroscopy and systems with such a device - Google Patents

Device used in wavelength modulation spectroscopy and systems with such a device

Info

Publication number
SE0602039L
SE0602039L SE0602039A SE0602039A SE0602039L SE 0602039 L SE0602039 L SE 0602039L SE 0602039 A SE0602039 A SE 0602039A SE 0602039 A SE0602039 A SE 0602039A SE 0602039 L SE0602039 L SE 0602039L
Authority
SE
Sweden
Prior art keywords
wavelength modulation
systems
spectroscopic system
wavelength
rotational axis
Prior art date
Application number
SE0602039A
Other languages
Swedish (sv)
Other versions
SE529931C2 (en
Inventor
Ulf Elman
Original Assignee
Ulf Elman
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ulf Elman filed Critical Ulf Elman
Priority to SE0602039A priority Critical patent/SE529931C2/en
Priority to EP07835065A priority patent/EP2076811A1/en
Priority to PCT/SE2007/000861 priority patent/WO2008041905A1/en
Publication of SE0602039L publication Critical patent/SE0602039L/en
Publication of SE529931C2 publication Critical patent/SE529931C2/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/06—Scanning arrangements arrangements for order-selection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/433—Modulation spectrometry; Derivative spectrometry
    • G01J3/4338—Frequency modulated spectrometry
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/002—Optical devices or arrangements for the control of light using movable or deformable optical elements the movement or the deformation controlling the frequency of light, e.g. by Doppler effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J2003/1226—Interference filters
    • G01J2003/1243—Pivoting IF or other position variation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Astronomy & Astrophysics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Filters (AREA)

Abstract

The invention relates to device (1,19,24) arranged for use in a wavelength spectroscopic system. The device is adapted for rotation around a rotational axis, and has a portion transparent to light extending through it. The device is arranged for receiving or is provided with an optical filter (3) in the transparent portion such that the filter normal and the rotational axis are not equal. The transparent portion maybe constituted by a through hole. In a particularly advantageous embodiment, the device simply comprises the inner rotating part (19) of a motor having a through hole in the inner rotating part. The invention further relates to a wavelength modulation spectroscopic system with a device according to the invention. A wavelength modulation spectroscopic system with such a device is a particularly simple design for spectroscopic detection of substances, such as water ice.
SE0602039A 2006-10-02 2006-10-02 Filter device for use in wavelength modulation spectroscopic system, has flat optical filter that is positioned in transparent portion with through-hole so that filter is enclosed by device along main portion of its periphery SE529931C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0602039A SE529931C2 (en) 2006-10-02 2006-10-02 Filter device for use in wavelength modulation spectroscopic system, has flat optical filter that is positioned in transparent portion with through-hole so that filter is enclosed by device along main portion of its periphery
EP07835065A EP2076811A1 (en) 2006-10-02 2007-09-28 Device used in wavelength modulation spectroscopy and system using such a device
PCT/SE2007/000861 WO2008041905A1 (en) 2006-10-02 2007-09-28 Device used in wavelength modulation spectroscopy and system using such a device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0602039A SE529931C2 (en) 2006-10-02 2006-10-02 Filter device for use in wavelength modulation spectroscopic system, has flat optical filter that is positioned in transparent portion with through-hole so that filter is enclosed by device along main portion of its periphery

Publications (2)

Publication Number Publication Date
SE0602039L true SE0602039L (en) 2008-01-08
SE529931C2 SE529931C2 (en) 2008-01-08

Family

ID=38871261

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0602039A SE529931C2 (en) 2006-10-02 2006-10-02 Filter device for use in wavelength modulation spectroscopic system, has flat optical filter that is positioned in transparent portion with through-hole so that filter is enclosed by device along main portion of its periphery

Country Status (3)

Country Link
EP (1) EP2076811A1 (en)
SE (1) SE529931C2 (en)
WO (1) WO2008041905A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530480A1 (en) * 1975-07-09 1977-01-27 Bayer Ag SINGLE-BEAM PHOTOMETER
US4536057A (en) 1981-04-14 1985-08-20 Canon Kabushiki Kaisha Filter mounting mechanism for an optical assembly
EP0510856A3 (en) 1991-04-26 1993-12-22 Siemens Plessey Controls Ltd Improvements in or relating to optical gas detectors
DE19506550A1 (en) * 1995-02-24 1996-08-29 Inst Chemo Biosensorik Process for the distortion-free detection of and for warning of dangers due to the formation of smoothness, and device for carrying out the process
JP2003311455A (en) * 2002-04-17 2003-11-05 Nippon Steel Corp Laser beam machining head
SE524878C2 (en) * 2002-10-10 2004-10-19 Ulf Elman Device, method and system for determining the state of a road surface with wavelength modulated spectrometry
US7099003B2 (en) * 2003-05-09 2006-08-29 Delta Search Labs, Inc. Spectroscopic systems and methods

Also Published As

Publication number Publication date
EP2076811A1 (en) 2009-07-08
WO2008041905A1 (en) 2008-04-10
SE529931C2 (en) 2008-01-08

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Legal Events

Date Code Title Description
NUG Patent has lapsed