WO2007069212A3 - Detection of corona - Google Patents

Detection of corona Download PDF

Info

Publication number
WO2007069212A3
WO2007069212A3 PCT/IB2006/054836 IB2006054836W WO2007069212A3 WO 2007069212 A3 WO2007069212 A3 WO 2007069212A3 IB 2006054836 W IB2006054836 W IB 2006054836W WO 2007069212 A3 WO2007069212 A3 WO 2007069212A3
Authority
WO
WIPO (PCT)
Prior art keywords
camera
mccd
filter
electromagnetic waves
corona
Prior art date
Application number
PCT/IB2006/054836
Other languages
French (fr)
Other versions
WO2007069212A2 (en
Inventor
Ockert Jacobus Henning
Dirk Stephanus Lindeque
Jeremy Rex Wallis
Original Assignee
Csir
Ockert Jacobus Henning
Dirk Stephanus Lindeque
Jeremy Rex Wallis
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 Csir, Ockert Jacobus Henning, Dirk Stephanus Lindeque, Jeremy Rex Wallis filed Critical Csir
Publication of WO2007069212A2 publication Critical patent/WO2007069212A2/en
Publication of WO2007069212A3 publication Critical patent/WO2007069212A3/en

Links

Classifications

    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
    • 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
    • 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
    • G01J3/0202—Mechanical elements; Supports for optical elements
    • 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
    • G01J3/0291—Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
    • 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
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0488—Optical or mechanical part supplementary adjustable parts with spectral filtering
    • 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
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Blocking Light For Cameras (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

An image intensified charge-coupled device (MCCD) camera system (10) for observing corona includes a conventional camera 16 and an MCCD camera (18) which are mounted on a central base (22) in superimposed arrangement. They are optically co-axially aligned via a beam splitter (26) and a reflector (28). The system (10) includes a filter (30), comprising a peripheral frame 30.1 and a filter element 30.2, which, in combination with other elements, passes electromagnetic waves between 240 nm and 280 nm and blocks out electromagnetic waves outside of said wave band. The filter (30) is selectively, replaceably, pivotal between an operative (daylight) position against a lens of the MCCD camera (18), and a dormant (night-time) position outside of the optical path.
PCT/IB2006/054836 2005-12-15 2006-12-14 Detection of corona WO2007069212A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2005/10242 2005-12-15
ZA200510242 2005-12-15

Publications (2)

Publication Number Publication Date
WO2007069212A2 WO2007069212A2 (en) 2007-06-21
WO2007069212A3 true WO2007069212A3 (en) 2007-10-18

Family

ID=38109583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/054836 WO2007069212A2 (en) 2005-12-15 2006-12-14 Detection of corona

Country Status (2)

Country Link
WO (1) WO2007069212A2 (en)
ZA (1) ZA200805155B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169232B (en) * 2011-05-23 2013-03-20 华北电力大学（保定） Double-spectrum helmet display system
CN102323520B (en) * 2011-05-23 2014-04-16 华北电力大学（保定） Double-spectrum helmet display
MX348510B (en) * 2013-03-13 2017-06-15 Csir Apparatus, methods and systems for measuring and detecting electrical discharge.
US8781158B1 (en) * 2014-01-10 2014-07-15 Ofil, Ltd. UVB-visible channel apparatus and method for viewing a scene comprising terrestrial corona radiation
CN110275098B (en) * 2019-06-28 2021-07-09 杭州赫太克科技有限公司 Ultraviolet imager

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886344A (en) * 1996-07-28 1999-03-23 Forsyth Electro-Optics, Inc. Corona detector with narrow-band optical filter
WO2000005536A1 (en) * 1998-07-20 2000-02-03 Ofil Ltd. Solar blind uv viewing apparatus and camera
US6512223B1 (en) * 2000-10-16 2003-01-28 Wedgewood Technology, Inc. Photometric detector assembly with internal calibration filters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886344A (en) * 1996-07-28 1999-03-23 Forsyth Electro-Optics, Inc. Corona detector with narrow-band optical filter
WO2000005536A1 (en) * 1998-07-20 2000-02-03 Ofil Ltd. Solar blind uv viewing apparatus and camera
US6512223B1 (en) * 2000-10-16 2003-01-28 Wedgewood Technology, Inc. Photometric detector assembly with internal calibration filters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LINDNER M ET AL: "Daylight corona discharge imager", HIGH VOLTAGE ENGINEERING, 1999. ELEVENTH INTERNATIONAL SYMPOSIUM ON (CONF. PUBL. NO. 467) LONDON, UK 23-27 AUG. 1999, LONDON, UK,IEE, UK, vol. 4, 23 August 1999 (1999-08-23), pages 349 - 352, XP006502017, ISBN: 0-85296-719-5 *

Also Published As

Publication number Publication date
WO2007069212A2 (en) 2007-06-21
ZA200805155B (en) 2009-10-28

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