CN102435306A - Device for detecting light intensity of flame - Google Patents
Device for detecting light intensity of flame Download PDFInfo
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- CN102435306A CN102435306A CN2011103240889A CN201110324088A CN102435306A CN 102435306 A CN102435306 A CN 102435306A CN 2011103240889 A CN2011103240889 A CN 2011103240889A CN 201110324088 A CN201110324088 A CN 201110324088A CN 102435306 A CN102435306 A CN 102435306A
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Abstract
The embodiment of the invention discloses a device for detecting light intensity of a flame, which comprises an optical telescope, an optical fiber connected with the optical telescope, a light filter lens and an optical spectrum processing module, wherein the optical telescope is used for acquiring optical spectrum information of the flame in a furnace mouth, the optical fiber is used for transmitting the optical spectrum information, the light filter lens is used for filtering the optical spectrum information and the optical spectrum processing module is used for processing the filtered optical spectrum information to obtain a light intensity value corresponding to the optical spectrum information, so that the device can detect the light intensity value of the flame in the furnace mouth without endurance of furnace-mouth high-temperature severe environment; therefore, the service life of the device is prolonged, the device can be assembled and maintained conveniently, and the detection of multi-way light intensity value is realized by operations of the multi-way optical fiber and the optical spectrum processing module.
Description
Technical field
The present invention relates to make steel detection range, particularly relate to a kind of flame light intensity test device.
Background technology
The steel output of pneumatic steelmaking accounts for more than 80% of total steel output, in big-and-middle-sized emphasis iron and steel enterprise converter steel output, occupy an leading position, and the control of steel-making terminal point is one of gordian technique of pneumatic steelmaking in the pneumatic steelmaking.The important operation in pneumatic steelmaking latter stage of the terminal point that blows during pneumatic steelmaking control is commonly referred to as and lets phosphorus, removal of sulphur breast the tape in the desired scope as much as possible in advance, so terminal point control mainly comprises carbon content and temperature controlling.In convertor steelmaking process, fire door flame is that the molten steel carbon content of bath temperature situation gets important basis for estimation, just can obtain the temperature and the carbon content of molten steel through the light intensity of computational analysis fire door flame.Therefore, a kind of device that is used for the flame detection light intensity is just necessary in the process of pneumatic steelmaking.
But present flame light intensity test device all needs in-plant flame to be detected, and be contained in fire door to equipment, thereby will bear the rugged surroundings of fire door high-temperature, has caused the device shortcoming that serviceable life is short, installation and maintenance are difficult.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of flame light intensity test device, be used for the light intensity of remote flame detection, avoiding bearing the rugged surroundings of fire door high-temperature, extension fixture serviceable life, specific embodiments is following:
A kind of flame light intensity test device comprises optical telescope, is used for obtaining at a distance the spectral information of fire door flame;
With the optical fiber that said optical telescope links to each other, be used for the said spectral information that obtains is transferred to filter glass;
Filter glass is used for according to detecting needs, and the spectral band that need not detect in the said spectral information of filtering obtains spectral band to be detected;
The spectral manipulation module is used to handle said spectral band to be detected, obtains and the corresponding light intensity signal of said spectral band to be detected according to said spectral band to be detected.
Preferably, said optical telescope comprises object lens, and said object lens are two cemented objectives or two not cemented objective.
Preferably; Said optical fiber is multi-channel optical fibre; The end that said multi-channel optical fibre links to each other with said optical telescope is arranged into ring optical fiber, and said multi-channel optical fibre is the ladder index fiber of identical material, same length and same diameter, and optical fiber adjacent in the said multi-channel optical fibre is closely pasted.
Preferably, said filter glass is a plurality of, the respectively corresponding filter glass of the every road optical fiber in the said multi-channel optical fibre, and the optical filtering wave band of said filter glass is optional between 300-900nm.
Preferably, said spectral manipulation module comprises:
The multichannel photoelectric switching circuit; The respectively corresponding filter glass of every road photoelectric switching circuit, said photoelectric switching circuit are used for the spectral band to be detected that the filter glass optical filtering corresponding with said photoelectric switching circuit obtains is converted into and the corresponding analog electrical signal of said spectral band;
Multichannel amplification filtering circuit; Photoelectric switching circuit of the corresponding respectively connection of every road amplification filtering circuit; Said amplification filtering circuit is used for the said analog electrical signal with the corresponding photoelectric switching circuit acquisition of said amplification filtering circuit is amplified according to preset multiple, and the interference in the analog electrical signal after the said amplification of filtering;
The A/D change-over circuit is connected with said multichannel amplification filtering circuit, the analog electrical signal behind the filtering interference signals that is used for said amplification filtering circuit is obtained change into said filtering interference signals after the corresponding digital electric signal of analog electrical signal;
With the control circuit that said A/D change-over circuit is connected, said control circuit is used to control said A/D change-over circuit and in a preset time period, only transforms one road analog electrical signal;
The processing unit that is connected with said A/D change-over circuit; Be used for to the multi-path digital signal of obtaining from said A/D change-over circuit screen respectively remove abnormal data after; Said multi-path digital electric signal after the screening is averaged respectively, obtain the corresponding light intensity value of mean value respectively with every way word electric signal.
Preferably, said spectral manipulation module also comprises: with the PORT COM that said processing unit links to each other, said PORT COM is used to send the light intensity value corresponding with said spectral information that obtains from said processing unit.
Preferably, said spectral manipulation module also comprises the sampling hold circuit that is arranged between said amplification filtering circuit and said A/D change-over circuit.
Preferably, said photoelectric switching circuit is a photoelectric sensor.
Preferably, said flame light intensity test device also comprises:
The shielding protection module, said shielding protection module comprises:
The filter glass mount pad is used to install said filter glass;
Fibre-optical splice with said optical filter mount pad links to each other is used to connect said optical fiber and filter glass;
Spectral manipulation module installing plate is used to install said spectral manipulation module, and said spectral manipulation module installing plate is provided with the sensor mount pad, is used to install said photoelectric sensor.
Preferably, said flame light intensity test device also comprises:
With the dynamic temperature control module that said shielding protection module is connected, the temperature that is used to control said shielding protection module is in preset scope.
The disclosed flame light intensity test device of the embodiment of the invention is through obtain the spectral information of fire door flame at a distance; And obtain and the corresponding light intensity value of said spectral information according to this spectral information; Avoid bearing the rugged surroundings of fire door high-temperature, improved the serviceable life of this device, be convenient to installation and maintenance; And the operation through multi-channel optical fibre and spectral manipulation module, realized the detection of multichannel light intensity value.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of flame light intensity test device of the embodiment of the invention;
Fig. 2 is the structural representation of the optical telescope in the disclosed a kind of flame light intensity test device of the embodiment of the invention;
Fig. 3 is the structural representation of the spectral manipulation module in the disclosed a kind of flame light intensity test device of the embodiment of the invention;
Fig. 4 is the structural representation of another the spectral manipulation module in the disclosed a kind of flame light intensity test device of the embodiment of the invention;
Fig. 5 is the structural representation of the shielding protection module in the disclosed a kind of flame light intensity test device of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention provides a kind of flame light intensity test device; The light intensity that is used for remote flame detection; Avoiding bearing the rugged surroundings of fire door high-temperature, extension fixture serviceable life, its structural representation is as shown in Figure 1; Comprise optical telescope 1, optical fiber 2, filter glass 3 and spectral manipulation module 4, wherein:
Optical telescope 1 is used for obtaining at a distance the spectral information of fire door flame;
With the optical fiber 2 that said optical telescope 1 links to each other, be used for the said spectral information that obtains is transferred to filter glass 3;
Wherein, the structural representation of said optical telescope 1 is as shown in Figure 2, comprising: object lens 11, the fixedly trim ring 12 and the lens barrel 13 of object lens 11, optical telescope 1 is connected with multi-channel optical fibre 2.Said object lens 11 are specially two cemented objectives or two not cemented objective.Wherein, Two cemented objectives are simple in structure; Form by one positive one negative two lens gummed, have easy for installation, optical energy loss is few, be prone to the advantage of correction error, but the maximum caliber of two cemented objectives can not surpass 100mm; Bore can cause weight excessive when increasing, thereby the gummed that causes two lens is insecure; The bore of two not cemented objectives is made up of one positive one negative two lens greater than 100mm equally, but in the middle of the lens airspace is arranged; Thereby bore is unrestricted, can utilize airspace correct residual spherical aberration simultaneously, increases relative aperture; But having optical energy loss increases; Installation and processing is the difficult shortcoming that guarantees of difficulty, the particularly coaxiality of two lens relatively, and the tester is when detecting fire door flame; Can select two cemented objectives or two not cemented objective according to different demands, and the lens barrel of said optical telescope 1 is a metal material.When detecting; Said optical telescope 1 is placed on the position far away apart from fire door; The spectral information of fire door flame is imaged on the focal plane of object lens on the said optical telescope 1; Thereby make this optical telescope 1 just can obtain the spectral information of fire door flame, avoid bearing the higher rugged surroundings of fire door flame temperature in larger distance.
Optical fiber in the present embodiment is multi-channel optical fibre 2; Said optical telescope 1 is connected with multi-channel optical fibre 2 through the multi-channel optical fibre interface; Said multi-channel optical fibre 2 is arranged into ring optical fiber with the end that said optical telescope 1 links to each other, and said multi-channel optical fibre 2 is the ladder index fiber of identical material, same length and same diameter, and adjacent optical fiber is closely pasted in the said multi-channel optical fibre 2; In practical operation, the tester can paste the end that multi-channel optical fibre 2 is arranged into ring optical fiber with glue.Make the evenly distributed measure of multi-channel optical fibre 2 through above-mentioned, can reach the purpose of the spectral information of the flame that even transmission obtains from said optical telescope 1.In addition,, realized the multipath transmission of spectral information, when actual the detection, can select said optical fiber 2 specifically is set to the optical fiber on how many roads according to actual conditions through said optical fiber 2 is set to multichannel.Generally speaking, can this optical fiber 2 be set to the 3-10 road.Simultaneously, the transmitance of said ladder index fiber＞75%, the numerical aperture of optical fiber＞0.6 can be transmitted maximum energy to greatest extent, makes luminous energy can pass through to low-loss optical fiber.
The disclosed filter glass 3 of the embodiment of the invention is similarly a plurality of; The respectively corresponding filter glass 3 in each road in the wherein said multi-channel optical fibre 2; Each said filter glass 3 all has different optical filtering wave bands, and its optical filtering wave band is optional between 300-900nm, peak transmittance＞50%; Be convenient to the spectral band that need not detect in the filtering spectral information, obtain spectral band to be detected.Generally speaking, said filter glass 3 is selected the narrow-band-filter eyeglass for use, simultaneously, under the prerequisite that guarantees measurement sensitivity, chooses the half-wave zone width of trying one's best little, to guarantee the accuracy of its measurement.Spectral information can convert the monochromatic light of multichannel specified wavelength to through behind the filter glass 3.
It is as shown in Figure 3 that the disclosed spectral manipulation module 4 of the embodiment of the invention is formed synoptic diagram, comprising:
Multichannel photoelectric switching circuit 41; Every road photoelectric switching circuit 41 respectively corresponding filter glasss 3; Said photoelectric switching circuit 41 is used for the filter glass that said photoelectric switching circuit is corresponding 3 spectral band to be detected that obtains that filters and is converted into and the corresponding analog electrical signal of said spectral band; Generally speaking, said photoelectric switching circuit 41 is specially photoelectric sensor;
Multichannel amplification filtering circuit 42; Photoelectric switching circuit 41 of the corresponding respectively connection of every road amplification filtering circuit 42; Said amplification filtering circuit 42 is used for the said analog electrical signal with said amplification filtering circuit 42 corresponding photoelectric switching circuits 41 acquisitions is amplified according to preset multiple; Make said analog electrical signal can meet the requirements of voltage magnitude, and the interference in the analog electrical signal after the said amplification of filtering, in the actual detection process; Filtering mainly be the noise that photoelectric sensor produces, noise that multichannel amplification filtering circuit produces and spectral information noise through producing after the opto-electronic conversion;
A/D change-over circuit 43; Be connected with said multichannel amplification filtering circuit 42, the analog electrical signal behind the filtering interference signals that is used for said amplification filtering circuit 42 is obtained change into said filtering interference signals after the corresponding digital electric signal of analog electrical signal;
The control circuit 44 that is connected with said A/D change-over circuit 43 is owing to said A/D change-over circuit 43 can only be handled one road signal a moment, in order to realize that multiple signals are handled; Said control circuit 44 adopts the multichannel handoff technique; The multichannel input signal is taken turns to switch, make said control circuit 44 realize controlling said A/D change-over circuit 43 and in a preset time period, only transform one road analog electrical signal, in the actual detection process; The testing staff also can be through setting said control circuit 44; Control said A/D change-over circuit 43 and transform concrete a certain road analog electrical signal, for example, in first clock period internal conversion first via simulating signal; The second tunnel clock period was changed the second tunnel simulating signal, and the like;
The processing unit 45 that is connected with said A/D change-over circuit 43; Be used for to the multi-path digital signal of obtaining from said A/D change-over circuit screen respectively remove abnormal data after; Said multi-path digital electric signal after the screening is averaged respectively, obtain the corresponding light intensity value of mean value respectively with every way word electric signal.In the actual detected process, said processing unit 45 can adopt single-chip microcomputer.
As shown in Figure 4, said spectral manipulation module 4 also comprises PORT COM 46, and said PORT COM 46 is used to send the said multichannel light intensity value that obtains from said processing unit 45.In the actual detected process, said PORT COM 46 sends to the analytical algorithm software in the industrial computer with said light intensity value, combines the converter production information to obtain temperature and carbon content in the converter by said software again; And; Said spectral manipulation module 4 also comprises the sampling hold circuit 47 that is arranged at 43 of said amplification filtering circuit 42 and said A/D change-over circuits; Because said A/D change-over circuit 43 at a time can only transform one road signal; Therefore poor through sampling hold circuit 47 with signal value generation time in transmission course of avoiding in different time sections, collecting, and then make and produce phase differential between the multiple signals, the phenomenon generation of conversion accuracy influence.
The disclosed flame light intensity test device of the embodiment of the invention also comprises shielding protection module 5, and its structure is as shown in Figure 5, comprising:
Filter glass mount pad 51 is used to install said filter glass;
With the fibre-optical splice 52 that said optical filter mount pad links to each other, be used to connect said optical fiber and filter glass 3;
Spectral manipulation module installing plate 53 is used to install said spectral manipulation module, and said spectral manipulation module installing plate 53 is provided with sensor mount pad 531, is used to install said photoelectric sensor, and promptly photoelectric switching circuit 41.
Because said filter glass and said spectral manipulation module are placed in the said shielding protection module 5, can protect said filter glass and said spectral manipulation module to avoid receiving the interference of on-the-spot dust and electromagnetism.
The disclosed flame light intensity test device of the embodiment of the invention also comprises the dynamic temperature control module 6 that is connected with said shielding protection module 5, and the temperature that is used to control said shielding protection module 5 is in preset scope.Owing to round the clock, the reasons such as climate change in the four seasons; There is huge gap in temperature in the working environment of this pick-up unit, and in this pick-up unit, may adopt photoelectric cell in each circuit; And photoelectric cell also exists very serious temperature to float phenomenon; Illumination is certain, and temperature can cause photocurrent to increase when raising, and the precision of this pick-up unit is impacted.When the temperature of said dynamic temperature control module 6 in detecting said shielding protection module 5 surpasses setting value; The temperature that will control said shielding protection module 5 is in preset scope; As surpassing setting value when the temperature of said dynamic temperature control module 6 in detecting said shielding protection module 5; Will start air-cooled equipment and lower the temperature, thus the accuracy of detection of assurance pick-up unit.
Extremely shown in Figure 5 by Fig. 1; Can find out; This flame light intensity test device is actual when detecting the flame light intensity of converter mouth; Its principle is described below: this flame light intensity test device obtains the spectral information of fire door flame at a distance through said optical telescope 1, and through said optical fiber 2 said spectral information is sent to said filter glass 3, and a plurality of said filter glasss 3 are according in advance settings; Obtain the spectral band to be detected of different-waveband; With each said filter glass 3 corresponding every road photoelectric switching circuit 41 after obtaining the spectral band to be detected of different-waveband, said spectral band to be detected is converted into and the corresponding analog electrical signal of said spectral band, the said analog electrical signal in every road all pass through with the corresponding amplification filtering circuit 42 of said analog electrical signal after; Can be according to certain multiple gain amplifier to meeting the requirements of voltage magnitude; And the interference in the said analog electrical signal of filtering, said A/D change-over circuit 43 transforms the analog electrical signal behind the filtering interference signals, obtain with said filtering interference signals after the corresponding digital electric signal of analog electrical signal after; In this process, the said A/D change-over circuit 43 of said control circuit 44 controls only transforms one road analog electrical signal in a preset time period.Obtain and the corresponding multichannel light intensity value of said multi-path digital electric signal through said processing unit 46, the said multichannel light intensity value that will be obtained by said PORT COM 47 at last sends.In this process, said dynamic temperature control module 6 is controlled the temperature of said shielding protection module 5 in preset scope always.
The disclosed flame light intensity test device of the embodiment of the invention is through obtain the spectral information of fire door flame at a distance; And obtain and the corresponding light intensity value of said spectral information, the rugged surroundings of having avoided bearing the fire door high-temperature, the serviceable life of having improved this device according to this spectral information; Be convenient to installation and maintenance; And the operation through multi-channel optical fibre and spectral manipulation module, realized the detection of multichannel light intensity value, improved the accuracy of detection of pick-up unit.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a flame light intensity test device is characterized in that, said flame light intensity test device comprises:
Optical telescope is used for obtaining at a distance the spectral information of fire door flame;
With the optical fiber that said optical telescope links to each other, be used for the said spectral information that obtains is transferred to filter glass;
Filter glass is used for according to detecting needs, and the spectral band that need not detect in the said spectral information of filtering obtains spectral band to be detected;
The spectral manipulation module is used to handle said spectral band to be detected, obtains and the corresponding light intensity signal of said spectral band to be detected according to said spectral band to be detected.
2. flame light intensity test device according to claim 1 is characterized in that said optical telescope comprises object lens, and said object lens are two cemented objectives or two not cemented objective.
3. flame light intensity test device according to claim 1; It is characterized in that; Said optical fiber is multi-channel optical fibre; The end that said multi-channel optical fibre links to each other with said optical telescope is arranged into ring optical fiber, and said multi-channel optical fibre is the ladder index fiber of identical material, same length and same diameter, and optical fiber adjacent in the said multi-channel optical fibre is closely pasted.
4. flame light intensity test device according to claim 3 is characterized in that, said filter glass is a plurality of, the respectively corresponding filter glass of the every road optical fiber in the said multi-channel optical fibre, and the optical filtering wave band of said filter glass is optional between 300-900nm.
5. flame light intensity test device according to claim 4 is characterized in that, said spectral manipulation module comprises:
The multichannel photoelectric switching circuit; The respectively corresponding filter glass of every road photoelectric switching circuit, said photoelectric switching circuit are used for the spectral band to be detected that the filter glass optical filtering corresponding with said photoelectric switching circuit obtains is converted into and the corresponding analog electrical signal of said spectral band;
Multichannel amplification filtering circuit; Photoelectric switching circuit of the corresponding respectively connection of every road amplification filtering circuit; Said amplification filtering circuit is used for the said analog electrical signal with the corresponding photoelectric switching circuit acquisition of said amplification filtering circuit is amplified according to preset multiple, and the interference in the analog electrical signal after the said amplification of filtering;
The A/D change-over circuit is connected with said multichannel amplification filtering circuit, the analog electrical signal behind the filtering interference signals that is used for said amplification filtering circuit is obtained change into said filtering interference signals after the corresponding digital electric signal of analog electrical signal;
With the control circuit that said A/D change-over circuit is connected, said control circuit is used to control said A/D change-over circuit and in a preset time period, only transforms one road analog electrical signal;
The processing unit that is connected with said A/D change-over circuit; Be used for to the multi-path digital signal of obtaining from said A/D change-over circuit screen respectively remove abnormal data after; Said multi-path digital electric signal after the screening is averaged respectively, obtain the corresponding light intensity value of mean value respectively with every way word electric signal.
6. flame light intensity test device according to claim 5; It is characterized in that; Said spectral manipulation module also comprises: with the PORT COM that said processing unit links to each other, said PORT COM is used to send the light intensity value corresponding with said spectral information that obtains from said processing unit.
7. flame light intensity test device according to claim 5 is characterized in that, said spectral manipulation module also comprises: be arranged at the sampling hold circuit between said amplification filtering circuit and said A/D change-over circuit.
8. flame light intensity test device according to claim 5 is characterized in that, said photoelectric switching circuit is a photoelectric sensor.
9. flame light intensity test device according to claim 8 is characterized in that, said flame light intensity test device also comprises:
The shielding protection module, said shielding protection module comprises:
The filter glass mount pad is used to install said filter glass;
Fibre-optical splice with said optical filter mount pad links to each other is used to connect said optical fiber and filter glass;
Spectral manipulation module installing plate is used to install said spectral manipulation module, and said spectral manipulation module installing plate is provided with the sensor mount pad, is used to install said photoelectric sensor.
10. flame light intensity test device according to claim 9 is characterized in that, said flame light intensity test device also comprises:
With the dynamic temperature control module that said shielding protection module is connected, the temperature that is used to control said shielding protection module is in preset scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110324088 CN102435306B (en) | 2011-10-21 | 2011-10-21 | Device for detecting light intensity of flame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110324088 CN102435306B (en) | 2011-10-21 | 2011-10-21 | Device for detecting light intensity of flame |
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| CN102435306A true CN102435306A (en) | 2012-05-02 |
| CN102435306B CN102435306B (en) | 2013-09-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006058198A (en) * | 2004-08-23 | 2006-03-02 | Ngk Insulators Ltd | Flame detector |
| JP2006292276A (en) * | 2005-04-11 | 2006-10-26 | Noritz Corp | Flame detector for combustor |
| CN2935106Y (en) * | 2006-06-08 | 2007-08-15 | 江苏技术师范学院 | Detection apparatus for high temperature field, flame image |
| CN101672858A (en) * | 2009-10-10 | 2010-03-17 | 哈尔滨工业大学 | Method for measuring flame propagation velocity of Bunsen burner during combustion process of gaseous fuel |
| CN102044126A (en) * | 2009-10-22 | 2011-05-04 | 叶建华 | Optical fiber flame detector |
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2011
- 2011-10-21 CN CN 201110324088 patent/CN102435306B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006058198A (en) * | 2004-08-23 | 2006-03-02 | Ngk Insulators Ltd | Flame detector |
| JP2006292276A (en) * | 2005-04-11 | 2006-10-26 | Noritz Corp | Flame detector for combustor |
| CN2935106Y (en) * | 2006-06-08 | 2007-08-15 | 江苏技术师范学院 | Detection apparatus for high temperature field, flame image |
| CN101672858A (en) * | 2009-10-10 | 2010-03-17 | 哈尔滨工业大学 | Method for measuring flame propagation velocity of Bunsen burner during combustion process of gaseous fuel |
| CN102044126A (en) * | 2009-10-22 | 2011-05-04 | 叶建华 | Optical fiber flame detector |
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