WO2002070953A1 - Dispositif de mesure, notamment destine a l'observation des flammes pendant un procede de combustion - Google Patents

Dispositif de mesure, notamment destine a l'observation des flammes pendant un procede de combustion Download PDF

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Publication number
WO2002070953A1
WO2002070953A1 PCT/EP2002/002135 EP0202135W WO02070953A1 WO 2002070953 A1 WO2002070953 A1 WO 2002070953A1 EP 0202135 W EP0202135 W EP 0202135W WO 02070953 A1 WO02070953 A1 WO 02070953A1
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WO
WIPO (PCT)
Prior art keywords
measuring device
recording device
recording
image
thermodynamic
Prior art date
Application number
PCT/EP2002/002135
Other languages
German (de)
English (en)
Inventor
Franz Wintrich
Peter Richter
Dirk Tiedtke
Thomas Vesper
Original Assignee
Powitec Intelligent Technologies Gmbh
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
Priority claimed from DE2001110181 external-priority patent/DE10110181A1/de
Priority claimed from DE10143548A external-priority patent/DE10143548A1/de
Priority claimed from DE10160411A external-priority patent/DE10160411A1/de
Application filed by Powitec Intelligent Technologies Gmbh filed Critical Powitec Intelligent Technologies Gmbh
Priority to DE50202782T priority Critical patent/DE50202782D1/de
Priority to AT02719956T priority patent/ATE293232T1/de
Priority to EP02719956A priority patent/EP1364164B1/fr
Publication of WO2002070953A1 publication Critical patent/WO2002070953A1/fr

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Classifications

    • 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
    • F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
    • 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

Definitions

  • the invention relates to a measuring device with the features of the preamble of claim 1.
  • the present invention has for its object to improve a measuring device of the type mentioned. This object is achieved by a measuring device with the features of claim 1. Further advantageous embodiments are the subject of the dependent claims.
  • the recording device takes several pictures of the combustion phenomenon independently of one another (preferably at the same time) in a spatially and temporally resolved manner, preferably in a highly localized and wedding-resolved manner, different examinations of the same combustion can phenomenon and information can be obtained.
  • Different recording devices are not necessary for recording the dynamics of the individual parameters, but also not excluded.
  • the measuring device only needs a single optical access, wherein several measuring devices with one optical access each can be provided. It is also possible to connect additional recording devices or other optical measuring devices, for example simple cameras, to the same optical access by means of suitable imaging means, for example beam splitters or split optics, in addition to the recording device present according to the invention.
  • the recording device preferably has a uniform structure in its recording plane (ie hardware design), preferably a high-resolution pixel structure, so that it can be individually adapted to the specified purpose without restrictions.
  • the recording device is preferably controlled by software so that it simultaneously records the image of the thermodynamic phenomenon several times with different segments of the recording plane or records the image alternately in time for the various evaluations.
  • the high-resolution image capture can preferably take place at the same time as wedding resolution and / or high-spectral resolution and / or multispectral resolution.
  • the recording device is preferably designed digitally as a CMOS chip with an electronic evaluation unit, which has individually addressable and readable pixels in the recording plane.
  • Individual segments and / or regions of interest can then be defined and defined within the acquisition level. can be read out, which means that significantly higher time resolutions are possible than with the video camera set to 25 Hz, whereby a complete FFT is generally available per pixel of the ROI.
  • This higher time resolution for high-frequency processes can also be achieved with a glass fiber camera as an additional recording device.
  • the glass fiber camera which preferably comprises a plurality of glass fibers arranged in a matrix, can also be used for spatially resolved spectroscopy.
  • the recording device is preferably arranged in a housing outside a space enclosing the thermodynamic phenomenon.
  • the imaging means preferably comprise, apart from an imaging optic provided for the optical access (referred to as a rigid scope as a borescope; in another possible flexible configuration, for example as a glass fiber bundle, referred to as an endoscope), also a split optic in order to supply the recording device with several identical images side by side ,
  • a holographic filter can also be provided in a focal plane of the optics, which on the one hand can produce a multiple image and on the other hand can filter out certain wavelength ranges.
  • a beam splitter is provided for the connection of further measuring devices (including further cameras, for example glass fiber cameras or conventional video cameras), which can all be accommodated in the same common housing as the recording device according to the invention or in optically coupled housings.
  • further measuring devices including further cameras, for example glass fiber cameras or conventional video cameras
  • the glass fibers can be assigned to different recording and evaluation devices.
  • one or more semiconductor lasers are preferably attached in the vicinity of the optical access, for example at the tip of the imaging means.
  • the installation of such means for optical excitation is not limited to the measuring device according to the invention.
  • a filter device By filtering individual pixels of the camera image in a filter device and combining the filtered pixels at a certain point in time with filtered pixels at at least one adjacent point in time, a complete image is available in a very short time, which can be used directly.
  • the optical camera image can be used directly, for example for a thermography examination or for regulating the thermodynamic process, without the need for a spectroscopy, which necessarily requires a certain recording time.
  • the filter device is preferably digital and implemented in the computer, but can also be provided as a separate filter device between the recording device and the computer.
  • the filter device can have a brightness filter and / or motion filter and / or turbidity filter.
  • FIG. 2 is a block diagram of a control circuit with the first embodiment
  • FIG. 5 is a block diagram of a variant of the recording device
  • 7A shows an exemplary camera image before filtering
  • 7B shows the image of FIG. 7A after filtering
  • FIGS. 7B and 7C are a combination of the images of FIGS. 7B and 7C into an entire filtered image
  • Fig. 9 is a block diagram with the integrated second embodiment.
  • Fig. 10 shows a section through a glass fiber bundle of the third embodiment.
  • a holographic filter is provided in a focal plane of the imaging optics, which on the one hand multiplies the images of the flame, that is, replaces the split optics 207, and on the other hand performs the aforementioned filtering, that is, replaces the filters 209.
  • the recording device 211 is a CMOS high-speed chip with an electronic evaluation unit which can be controlled pixel by pixel and converts visible light as well as infrared and ultraviolet radiation into digital signals with a high image sequence.
  • a two-dimensional matrix of pixels is arranged within the recording plane, which can also be curved, for example a pixel array 231 of 1024 ⁇ 1024 pixels.
  • the pixels are identical to one another, ie the recording device 211 is structured uniformly in the recording plane.
  • Each pixel represents an individual sensor.
  • the optional addressing of the individual pixel of the recording device 211 enables individual pixels to be read out.
  • ROI 233 region of interest
  • a frame rate corresponding to the ratio of the total area to the size of the ROI (s) 233 can be achieved, which is significantly larger than the frame rate (typically a few tens of fps, ie frames per second).
  • the shape and number of ROI 233 is adapted to the individual case.
  • ROI 233 In the simplest case, a group of several, directly adjacent pixels is combined to form a rectangular or round ROI 233, but regular arrangements of isolated ROI 233, textures with imperfections or network-like structures with support points are also possible.
  • the ROI 233 can also be changed dynamically, ie during the operation of the multisensor 201, for example if different examinations are to be carried out in succession.
  • a location-time-dependent profile of turbulence in the flame F for example, it makes sense to distribute a plurality of ROIs 233 over the flame F within a segment 210, the individual ROIs 233 simultaneously or - because of the turbulence zones which remain largely stable under constant combustion conditions - one after the other be read out.
  • a logarithmic characteristic when converting the radiation intensity into an electrical characteristic, a higher resolution with large differences in brightness can be achieved.
  • the multisensor 201 can therefore also be used for high-resolution investigations of highly dynamic processes in the flame F, for example as a sensor for the examination of turbulence, grain spectra or the mixing behavior of different phase currents, the further processing of the image data from the ROI 233 using an FFT (per pixel ), a time delay neuronal network analysis and / or a joint time frequency analysis.
  • the curves of the signals (of each pixel) can, for example, be mapped onto a function system of wavelets.
  • the recording device 21 1 can be designed internally as a standard CMOS high-speed camera, ie the image information in the pixel array 231 is read out, digitized by means of an analog-digital converter, hereinafter referred to as ADC 235, and digitized directly by a driver 237 written via a digital interface (eg LVDS) for further processing in an image processing card of an external computer as evaluation unit A.
  • ADC 235 analog-digital converter
  • the evaluation unit A for example a conventional personal computer, then carries out the image processing.
  • the recording device 211 is controlled internally by a control unit 239 with a microprocessor, which can be controlled externally via a standard interface (for example RS232 / 485).
  • a segment 210 of the pixel array 231 is selected for a video live image of the flame F.
  • the recording device 21 1 can be designed internally as a CMOS high-speed camera with image preprocessing.
  • the image data read out from the pixel array 231 are converted by the ADC 235 and then written into an image memory 241.
  • a digital signal processor, hereinafter referred to as DSP 243 can both carry out any type of image processing of the data from the image memory 241 and define the ROI 233, output the results of the image processing to the evaluation unit A and receive the external control signals via a standard interface, and For a live image of the flame F, read out the image memory 241 in accordance with the CCIR standard and output it via a video signal interface 245.
  • the pixel array 231 and the ADC 235 or the pixel array 231 can be accommodated on the same chip.
  • Other integration options are also conceivable.
  • segments 210 of the recording device 211 which can be controlled independently of one another, can also be used to ascertain further data about thermal and spectral conditions of the combustion process, ie the recording device 211 can - simultaneously different segments or alternating in time - capture different process parameters, parameters or state variables of the combustion process, namely with high spatial and temporal resolution. These parameters are evaluated in evaluation unit A, for example, by means of an implemented neural network.
  • the multisensor 201 forms part of a control circuit in which evaluation of the measured parameters, preferably via a central computer C, is used to control the actuating devices V of the boiler K, for example the primary air supply or the coal supply.
  • the combustion process can then be optimally controlled, for example with regard to low pollutant emissions or high efficiency.
  • the multisensor 201 can also be used as a flame monitor. For this purpose, for example, a vertical, narrow ROI 233 is shown, on which an approximately average flame is shown over its entire height. As in the case of a conventional, point-like flame monitor, the multisensor 201 switches off the system in the absence of a flame pattern, but because of the possibility of defining an elongated ROI, much fewer individual devices are required.
  • the multisensor 201 is "intrinsically safe", i.e. it switches off in the event of its own defect. For this purpose, a diode is provided, for example, which checks the current flow in the chip.
  • a flame F is present in the cement kiln K during the firing process.
  • the borescope 205 (or another imaging device) images an image of the flame F onto the multisensor 201 arranged outside the cement kiln K with its digital recording device 211 described above with the individually addressable and readable pixels.
  • a computer C is connected to the multisensor 201 and processes the signals of the recording device 211, hereinafter referred to as camera images. For processing, pixels are defined in the camera image, which generally correspond to one of the pixels, but can also be a group of neighboring pixels.
  • the computer C filters the camera image captured at a specific point in time, hereinafter referred to as frame B1, by subjecting the individual pixels of the frame B1 to three digital filters.
  • the computer C thus acts as a digital filter device.
  • the three digital filters are linked with AND conditions in order to eliminate short-term disturbances in the image of the flame F, for example dust clouds S or fumes of smoke between the flame F and the borescope 205.
  • a first filter (brightness filter)
  • a minimum brightness is checked using a threshold value.
  • motion filter movements of interference across neighboring pixels at successive times are eliminated.
  • turbidity filter turbidity is detected by calculating an entropy. The pixels that do not pass all three filters are discarded.
  • the filtered image BE an end image that is as closed as possible is obtained, hereinafter referred to as the filtered image BE.
  • the number of frames required for this depends on the desired resolution and the relationship between the characteristic time scale for the changes in the flame and the characteristic time scale for the changes in the disturbances, but can also be determined arbitrarily. Since the recording device 211 can deliver a very high sequence of frames, for example a few hundred per second, the computer C can usually generate several filtered images BE per second with sufficient resolution.
  • the computer C processes the filtered image BE further by subjecting its points to a thermography examination.
  • the filtered image BE can be placed on a monitor M for visual monitoring.
  • the calculator C is also used to control the burning process by means of the implemented neural network, for which it is connected to the various actuating devices V, which it controls to change manipulated variables.
  • a second exemplary measuring device for flame observation during a combustion process is also referred to below as multisensor 1.
  • the multisensor 1 has a housing 3, which is provided on the outside with various connections.
  • a borescope 5 is connected to the multisensor 1, the end thereof facing away from the multisensor 1 is inserted through the wall of a boiler K or the like and is arranged within the same.
  • the imaging optics contained in the boroscope 5 images the radiation of a flame F, which arises in the boiler K during its operation, into the interior of the housing 3 of the multisensor 1.
  • the multisensor 1 itself is arranged at a certain distance so far outside the boiler K that no special cooling for the multisensor 1 is necessary.
  • a monochromatic beam can be directed into the video camera 11 from a color emitter 17 arranged inside or outside the multisensor 1 via the beam splitter 7, which then serves as a reference for the temperature determination. In the case of constant monitoring, this beam can also be used to check the functionality of the components of the multisensor, ie as a type of test pattern for "intrinsic safety".
  • Another part of the radiation incident in the beam splitter 7 is reflected by the semitransparent mirror and passes through a controllable, second aperture 19 into a glass fiber camera 21.
  • the optical fiber camera 21 is similar in structure to the optics as a video camera, but has instead of the light-sensitive layers in the image plane a matrix 23 with the ends of a plurality of glass fibers 25.
  • the image of the flame F is thus transferred to the glass fibers 25 in a spatially resolved manner.
  • About half of the glass fibers 25 are led to a spectrometer unit S, where the signal of each individual glass fiber 25 is spectrally high-resolution in a freely selectable spectral range (infrared to ultraviolet), for example online in individual spectrometers.
  • Various information can be obtained from the spectra determined by the ratio of absorption and emission, which in the present case is (highly) spatially resolved. All spectra are created at the same time for different locations and can therefore depict transient processes.
  • the multisensor 1, the thermography unit T, the spectrometer unit S and the evaluation unit A are connected to a computer unit C which carries out the corresponding evaluations of the measured process parameters, for example by means of an implemented neural network, and for regulating the combustion process in the boiler K via a Feedback R actuates the actuating devices of the boiler K, for example a valve V for the primary air.
  • a computer unit C which carries out the corresponding evaluations of the measured process parameters, for example by means of an implemented neural network, and for regulating the combustion process in the boiler K via a Feedback R actuates the actuating devices of the boiler K, for example a valve V for the primary air.
  • diodes instead of the high-spatial and high-spectral resolution spectrometer unit S with individual spectrometers at the ends of the glass fibers, diodes are provided which have a high local high with a sampling frequency of up to 2 kHz for example - and possibly different spectral sensitivity Record time and low spectrally resolved signal
  • the curves can also be mapped to a function system of wavelets.
  • an n-dimensional pyrometer is provided instead of the spectrometer unit S, which picks up an integrated signal at each glass fiber end and puts it in relation to one another, so that the spectral range is only detected by individual reference points.
  • the technology of the fiber optic camera 21 makes it possible that, in further, modified embodiments, spectrometers, diodes, pyrometers and / or high-time-resolution sensors can be connected to the glass fibers 25 in an arbitrarily selectable distribution, to be precise to neighboring glass fibers and / or via branches to obtain a spatial, time and spectral resolution adapted to the needs.
  • the third exemplary embodiment is largely the same as the second exemplary embodiment.
  • a glass fiber bundle 105 of a few tens of thousands of glass fibers 125 is provided instead of the boroscope 5, part of which is used for spatial behavior of the flame to be observed, part for temporal behavior and part for spectral behavior, and as in the second Embodiment corresponding measurement and evaluation devices is supplied, the beam splitter 7 is omitted.
  • the modifications mentioned in the second embodiment are also possible in the third embodiment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Radiation Pyrometers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Control Of Combustion (AREA)

Abstract

L'invention concerne un dispositif de mesure (201), notamment destiné à l'observation des flammes pendant un procédé de combustion. Ce dispositif comprend un appareil d'enregistrement (211) et des moyens d'imagerie (205, 207) qui détectent l'image du phénomène thermodynamique (F) à observer par un accès optique (205) et représentent cette image sur l'appareil d'enregistrement (211). L'appareil d'enregistrement (211) enregistre plusieurs images du phénomène thermodynamique (F) à résolution spatiale et temporelle en tenant compte de plusieurs paramètres du phénomène thermodynamique (F), ces paramètres étant variables et toujours indépendants les uns des autres.
PCT/EP2002/002135 2001-03-02 2002-02-28 Dispositif de mesure, notamment destine a l'observation des flammes pendant un procede de combustion WO2002070953A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50202782T DE50202782D1 (de) 2001-03-02 2002-02-28 Messvorrichtung, insbesondere zur flammenbeobachtung während eines verbrennungsprozesses
AT02719956T ATE293232T1 (de) 2001-03-02 2002-02-28 Messvorrichtung, insbesondere zur flammenbeobachtung während eines verbrennungsprozesses
EP02719956A EP1364164B1 (fr) 2001-03-02 2002-02-28 Dispositif de mesure, notamment destine a l'observation des flammes pendant un procede de combustion

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE10110181.3 2001-03-02
DE2001110181 DE10110181A1 (de) 2001-03-02 2001-03-02 Meßvorrichtung, insbesondere zur Flammenbeobachtung während eines Verbrennungsprozesses
DE20109685.4 2001-06-13
DE20109685U DE20109685U1 (de) 2001-03-02 2001-06-13 Meßvorrichtung, insbesondere zur Flammenbeobachtung während eines Verbrennungsprozesses
DE10143548.7 2001-09-06
DE10143548A DE10143548A1 (de) 2001-06-13 2001-09-06 Meßvorrichtung, insbesondere zur Flammenbeobachtung während eines Verbrennungsprozesses
DE10160411.4 2001-12-10
DE10160411A DE10160411A1 (de) 2001-12-10 2001-12-10 Verfahren zur Überwachung von thermodynamischen Prozessen und Vorrichtung zur Regelung derselben

Publications (1)

Publication Number Publication Date
WO2002070953A1 true WO2002070953A1 (fr) 2002-09-12

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PCT/EP2002/002135 WO2002070953A1 (fr) 2001-03-02 2002-02-28 Dispositif de mesure, notamment destine a l'observation des flammes pendant un procede de combustion

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Country Link
EP (1) EP1364164B1 (fr)
AT (1) ATE293232T1 (fr)
ES (1) ES2240726T3 (fr)
WO (1) WO2002070953A1 (fr)

Cited By (12)

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Publication number Priority date Publication date Assignee Title
EP1479974A1 (fr) * 2003-05-16 2004-11-24 Thetford Corporation Procédé et dispositif pour détecter visuellement la flamme d'un brûleur dans un appareil à gaz
EP1524470A1 (fr) * 2003-10-15 2005-04-20 Powitec Intelligent Technologies GmbH Méthode pour réguler un système thermodynamique et appareil de mesure pour celui-ci
WO2008022474A1 (fr) * 2006-08-25 2008-02-28 Abb Research Ltd Détecteur de flamme utilisant une caméra
WO2008064495A1 (fr) * 2006-11-29 2008-06-05 Abb Research Ltd Dispositif et procédé de traitement et/ou d'analyse d'informations d'image représentant un rayonnement
EP2080953A1 (fr) 2008-01-15 2009-07-22 Powitec Intelligent Technologies GmbH Boucle de réglage et procédé pour déterminer un modèle de fonctionnement correspondant
US7610252B2 (en) 2006-08-17 2009-10-27 Powitec Intelligent Technologies Gmbh Method for developing a process model
US7637735B2 (en) 2006-04-25 2009-12-29 Powitec Intelligent Technologies Gmbh Procedure for regulating a combustion process
EP2246755A1 (fr) 2009-04-22 2010-11-03 Powitec Intelligent Technologies GmbH Circuit de commande
US8019446B2 (en) 2007-03-01 2011-09-13 Powitec Intelligent Technologies Gmbh Control loop for regulating a combustion process
CN102881041A (zh) * 2012-08-21 2013-01-16 中国科学院计算技术研究所 一种基于多源实测数据的火焰建模方法及其系统
CN106228540A (zh) * 2016-07-12 2016-12-14 西安中科英特光谱科技有限公司 一种多光谱视频火焰检测方法
CN110793632A (zh) * 2019-10-30 2020-02-14 南京大学 一种用于火焰拍摄的高速高精度光谱视频系统及方法

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DE102016000290A1 (de) * 2016-01-15 2017-07-20 Ci-Tec Gmbh Auswerte- und Regelungsverfahren für Mehrstoffbrenner und Auswerte- und Regelungsanordnung dafür
JP6446733B1 (ja) * 2018-05-30 2019-01-09 三菱重工環境・化学エンジニアリング株式会社 ガス旋回状態判定システム及びガス化溶融炉
DE102022109881A1 (de) 2022-04-25 2023-10-26 Deutsches Zentrum für Luft- und Raumfahrt e.V. Brennkammer mit einem Sensorsystem sowie Verfahren zur Regelung eines Brenners einer Brennkammer

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1479974A1 (fr) * 2003-05-16 2004-11-24 Thetford Corporation Procédé et dispositif pour détecter visuellement la flamme d'un brûleur dans un appareil à gaz
KR101115758B1 (ko) * 2003-10-15 2012-03-06 포위텍 인텔리전트 테크놀로지스 게엠베하 열역학적 시스템 제어 방법
EP1524470A1 (fr) * 2003-10-15 2005-04-20 Powitec Intelligent Technologies GmbH Méthode pour réguler un système thermodynamique et appareil de mesure pour celui-ci
US7637735B2 (en) 2006-04-25 2009-12-29 Powitec Intelligent Technologies Gmbh Procedure for regulating a combustion process
US7610252B2 (en) 2006-08-17 2009-10-27 Powitec Intelligent Technologies Gmbh Method for developing a process model
WO2008022474A1 (fr) * 2006-08-25 2008-02-28 Abb Research Ltd Détecteur de flamme utilisant une caméra
CN101506582B (zh) * 2006-08-25 2012-06-13 Abb研究有限公司 基于照相机的火焰检测器
WO2008064495A1 (fr) * 2006-11-29 2008-06-05 Abb Research Ltd Dispositif et procédé de traitement et/ou d'analyse d'informations d'image représentant un rayonnement
US7952064B2 (en) 2006-11-29 2011-05-31 Abb Research Ltd Device and method for processing and/or analyzing image information representing radiation
US8019446B2 (en) 2007-03-01 2011-09-13 Powitec Intelligent Technologies Gmbh Control loop for regulating a combustion process
EP2080953A1 (fr) 2008-01-15 2009-07-22 Powitec Intelligent Technologies GmbH Boucle de réglage et procédé pour déterminer un modèle de fonctionnement correspondant
EP2246755A1 (fr) 2009-04-22 2010-11-03 Powitec Intelligent Technologies GmbH Circuit de commande
US8340789B2 (en) 2009-04-22 2012-12-25 Powitec Intelligent Technologies Gmbh System for monitoring and optimizing controllers for process performance
CN102881041A (zh) * 2012-08-21 2013-01-16 中国科学院计算技术研究所 一种基于多源实测数据的火焰建模方法及其系统
CN106228540A (zh) * 2016-07-12 2016-12-14 西安中科英特光谱科技有限公司 一种多光谱视频火焰检测方法
CN110793632A (zh) * 2019-10-30 2020-02-14 南京大学 一种用于火焰拍摄的高速高精度光谱视频系统及方法
CN110793632B (zh) * 2019-10-30 2021-06-22 南京大学 一种用于火焰拍摄的高速高精度光谱视频系统及方法

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EP1364164A1 (fr) 2003-11-26

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