CA2070368A1 - Video temperature monitor - Google Patents

Video temperature monitor

Info

Publication number
CA2070368A1
CA2070368A1 CA2070368A CA2070368A CA2070368A1 CA 2070368 A1 CA2070368 A1 CA 2070368A1 CA 2070368 A CA2070368 A CA 2070368A CA 2070368 A CA2070368 A CA 2070368A CA 2070368 A1 CA2070368 A1 CA 2070368A1
Authority
CA
Canada
Prior art keywords
light
video
camera
real
different wavelengths
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2070368A
Other languages
French (fr)
Other versions
CA2070368C (en
Inventor
Hudson R. Carter
John W. Berthold
Charles C. England
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock and Wilcox Co
Original Assignee
Hudson R. Carter
John W. Berthold
Charles C. England
The Babcock & Wilcox Company
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 Hudson R. Carter, John W. Berthold, Charles C. England, The Babcock & Wilcox Company filed Critical Hudson R. Carter
Publication of CA2070368A1 publication Critical patent/CA2070368A1/en
Application granted granted Critical
Publication of CA2070368C publication Critical patent/CA2070368C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
    • G01J5/602—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature using selective, monochromatic or bandpass filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
    • F23N5/085—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electrical or electromechanical means
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • G01J5/0018—Flames, plasma or welding
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F23N2229/20—Camera viewing
    • 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
    • G01J1/44—Electric circuits
    • G01J2001/4446—Type of detector
    • G01J2001/448—Array [CCD]
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging

Abstract

An apparatus and method for providing a real-time video display and a temperature map display of an object, in particular a flame, comprises a single CCD
video camera and optical equipment which focuses separate light bundles onto a photosensitive surface of the camera. A separate band pass filter is used in each light bundle to filter selected different wavelengths of light. The video signal from the camera is used in a video digitizer to obtain data which can be used to calculate a temperature map based on the different wavelengths of light of the two bundles. The video signal is also used to produce a real-time video display of the object.
CA002070368A 1991-06-05 1992-06-03 Video temperature monitor Expired - Fee Related CA2070368C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/711,469 US5225883A (en) 1991-06-05 1991-06-05 Video temperature monitor
US711,469 1991-06-05

Publications (2)

Publication Number Publication Date
CA2070368A1 true CA2070368A1 (en) 1992-12-06
CA2070368C CA2070368C (en) 1996-04-02

Family

ID=24858207

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002070368A Expired - Fee Related CA2070368C (en) 1991-06-05 1992-06-03 Video temperature monitor

Country Status (2)

Country Link
US (1) US5225883A (en)
CA (1) CA2070368C (en)

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IT1265075B1 (en) * 1993-05-18 1996-10-30 Finmeccanica Spa APPARATUS FOR REAL-TIME MAPPING OF THE TEMPERATURE OF A FLAME
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FR2768510B1 (en) * 1997-09-16 1999-10-15 Commissariat Energie Atomique METHOD AND DEVICE FOR IMAGING THE TEMPERATURES OF A VERY HOT OPAQUE BODY
DE19800312A1 (en) * 1998-01-07 1999-07-08 Wolf Gmbh Richard Diagnostic device for imaging of fluorescent biological tissue areas
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JP2002303553A (en) * 2001-04-04 2002-10-18 Noritake Co Ltd Method and device for measuring temperature distribution
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JP5231625B2 (en) 2008-03-18 2013-07-10 ノヴァダク テクノロジーズ インコーポレイテッド Imaging system for acquiring NIR and full color images and method of operation thereof
US10219742B2 (en) 2008-04-14 2019-03-05 Novadaq Technologies ULC Locating and analyzing perforator flaps for plastic and reconstructive surgery
ES2671710T3 (en) 2008-05-02 2018-06-08 Novadaq Technologies ULC Methods for the production and use of erythrocytes loaded with substances for the observation and treatment of microvascular hemodynamics
RU2371704C1 (en) * 2008-07-25 2009-10-27 Государственное Научное Учреждение "Институт Физики Имени Б.И. Степанова Национальной Академии Наук Беларуси" Device for monitoring laser engineering processes
DE102008058187A1 (en) * 2008-11-20 2010-06-10 Benteler Automobiltechnik Gmbh Method and device for non-destructive quality determination of a weld and a welding device
US10492671B2 (en) 2009-05-08 2019-12-03 Novadaq Technologies ULC Near infra red fluorescence imaging for visualization of blood vessels during endoscopic harvest
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WO2012120380A1 (en) 2011-03-08 2012-09-13 Novadaq Technologies Inc. Full spectrum led illuminator
CA2914778A1 (en) 2012-06-21 2013-12-27 Novadaq Technologies Inc. Quantification and analysis of angiography and perfusion
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JP6160134B2 (en) * 2013-03-08 2017-07-12 株式会社Ihi Thermal image observation device
US9696210B2 (en) * 2014-06-16 2017-07-04 Honeywell International Inc. Extended temperature range mapping process of a furnace enclosure using various device settings
AU2015327665B2 (en) 2014-09-29 2018-09-27 Stryker European Operations Limited Imaging a target fluorophore in a biological material in the presence of autofluorescence
KR101955134B1 (en) 2014-10-09 2019-03-06 노바다크 테크놀러지즈 유엘씨 Quantification of absolute blood flow in tissue using fluorescence-mediated photoplethysmography
AU2016351730B2 (en) 2015-11-13 2019-07-11 Novadaq Technologies Inc. Systems and methods for illumination and imaging of a target
WO2017127929A1 (en) 2016-01-26 2017-08-03 Novadaq Technologies Inc. Configurable platform
US10293122B2 (en) 2016-03-17 2019-05-21 Novadaq Technologies ULC Endoluminal introducer with contamination avoidance
USD916294S1 (en) 2016-04-28 2021-04-13 Stryker European Operations Limited Illumination and imaging device
EP3469420A4 (en) 2016-06-14 2020-02-12 Novadaq Technologies ULC Methods and systems for adaptive imaging for low light signal enhancement in medical visualization
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Also Published As

Publication number Publication date
US5225883A (en) 1993-07-06
CA2070368C (en) 1996-04-02

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