CN110426167A - A kind of infrared optics identification device and method - Google Patents
A kind of infrared optics identification device and method Download PDFInfo
- Publication number
- CN110426167A CN110426167A CN201910789354.1A CN201910789354A CN110426167A CN 110426167 A CN110426167 A CN 110426167A CN 201910789354 A CN201910789354 A CN 201910789354A CN 110426167 A CN110426167 A CN 110426167A
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- infrared
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- optical element
- identification device
- electric signal
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 89
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Present invention discloses a kind of infrared optics identification device and methods, device includes optical detection mechanism and microprocessor module, optical detection mechanism has optical element and infrared emission receiving module, micro controller module controls infrared emission receiving module and emits infrared beam to optical element, infrared beam is received and converted to electric signal transmission into micro controller module by infrared emission receiving module after reflection and refraction occur for optical element, since infrared beam is partially refracted out, the light quantity of the received infrared beam of infrared receiving module is caused to change, finally electric signal is made also to change, micro controller module judges whether the state of determinand changes based on the received electrical signal.The present invention can identify whether the state of determinand changes, the abnormal detection such as leakage suitable for harmful influence production, transmission process.
Description
Technical field
The present invention relates to liquid or fluid detecting devices, more particularly, to a kind of infrared optics identification device and method.
Background technique
With the rapid growth of China's economy, the fast development of chemical industry, China has become the production of chemical products and makes
Type and quantity with big country, hazardous chemical are increasing, are widely used in the every field of China's economic development.However
In Chemical Manufacture, organic liquid harmful influence is easy to happen leakage, and its inflammable and explosive or toxic and harmful gas for volatilizing, can
The major accidents such as fire, explosion, poisoning are caused to occur, it is therefore necessary to detect to whether organic liquid harmful influence leaks；
In addition, filling the overflow of oil filling riser in the overflow of harmful influence transportation tank car or oil depot in organic liquid harmful influence transmission process or adding
The leakage of petrol station will lead to serious harm and uncontrollability.
Therefore a kind of safe and reliable infrared optics identification device need to be provided, can be used for producing harmful influence, conveying waited
Whether journey, which occurs the exception such as leakage, is detected.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of infrared optics identification device and method are provided, it can
Whether occur that leakage etc. is abnormal to be detected for the processes such as harmful influence being produced, being conveyed.
To achieve the above object, the following technical solutions are proposed: a kind of infrared optics identification device comprising optics by the present invention
Detection agency and micro controller module, the optical detection mechanism include
Bearing base；
Infrared emission receiving module is installed in the bearing base, for emitting infrared beam, and reception infrared beam
And the infrared beam received is converted into electric signal；
Optical element is set on the bearing base, and the optical element, which is equipped with, sends out infrared emission receiving module
Reflection and refraction occur for the infrared beam penetrated, and guide infrared beam by the received optical interface of infrared emission receiving module；
Protection sleeve pipe is set on bearing base, for protecting to infrared emission receiving module；
The micro controller module is connected with the infrared emission receiving module, receives mould for controlling the infrared emission
Block emits infrared beam, and receives the electric signal and judge whether the state of determinand changes according to the electric signal.
Preferably, the optical interface is made infrared light in infrared emission receiving module receive process in guidance infrared beam
Shu Fasheng is reflected and is reflected at least once.
Preferably, the optical element includes extending outwardly shape with outerplanar component body portion and by the outerplanar
At optical section, form the optical interface on the optical section.
Preferably, the component body portion is in D font, and the optical section is triangular in shape.
Preferably, the optical interface includes the first reflecting surface and the second reflecting surface that angle is in 60 °~120 °.
It preferably, further include pressing lid for being limited to optical element, the pressing lid is set in the carrying
On pedestal, and between the optical element and protection sleeve pipe.
Preferably, the first sealing ring is equipped between the bearing base and optical element, the optical element and pressing are covered
Between be equipped with the second sealing ring, equipped with third sealing ring between pressing lid and the protection sleeve pipe.
Preferably, the optical element is using transparent material or the material permeable using nontransparent and part infrared beam
It is made, and the material is compatible with determinand.
It preferably, further include for by micro controller module, treated that electric signal is converted to standard compliant electric signal
Signal conditioning circuit module, the signal conditioning circuit module are connected with micro controller module.
Present invention further teaches a kind of recognition methods of infrared optics identification device, include the following steps:
Optical detection mechanism is placed in determinand by S100, and micro controller module controls infrared emission receiving module to light
It learns element and emits infrared beam；
S200, the optical interface on optical element makes infrared beam that reflection and refraction occur, and guides infrared beam red
Outer transmitting and receiving module receives；
The infrared beam received is converted to electric signal and is transmitted to microcontroller mould by S300, infrared emission receiving module
Block；
S400 receives the electric signal and judges whether the state of determinand changes according to the electric signal.
The beneficial effects of the present invention are:
(1) present invention emits infrared beam to optical element by control infrared emission receiving module, and infrared beam is through light
It learns and electric signal transmission is received and converted to micro controller module by infrared emission receiving module after element occurs reflection and reflects
In, micro controller module handles the electric signal received and judges whether the state of determinand changes, can be quick
/ wet condition, and identification oil/water, the leak detection suitable for harmful influence production, transmission process are done in identification.
(2) all parts, such as optical element in optical detection mechanism of the present invention, pressing lid etc. are all made of compatible with determinand
Material be made, while being sealed between all parts using sealing ring, so that optical detection mechanism can immerse for a long time and material
Expect to be detected in compatible determinand, long service life.
Detailed description of the invention
Fig. 1 is structural block diagram schematic diagram of the invention；
Fig. 2 is the stereoscopic schematic diagram of optical detection mechanism of the invention；
Fig. 3 is the perspective view of the explosion of optical detection mechanism of the invention；
Fig. 4 is the schematic top plan view of optical element of the invention.
Appended drawing reference: 10, bearing base, 11, base body, 12, extension, 20, infrared emission receiving module, 30, light
Element is learned, 31, component body portion, 311, outerplanar, 312, exterior arc surface, 32, optical section, 33, optical interface, 331, first is anti-
Penetrate face, the 332, second reflecting surface, 40, protection sleeve pipe, 50, pressing lid, the 60, first sealing ring, the 70, second sealing ring, 80, third
Sealing ring.
Specific embodiment
Below in conjunction with attached drawing of the invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention.
Disclosed infrared optics identification device controls infrared emission receiving module 20 by micro controller module
Emit infrared beam to optical element 30, infrared beam receives mould by infrared emission after reflection and refraction occur for optical element 30
Block 20 is received and converted to electric signal transmission into micro controller module, micro controller module to the electric signal received at
It manages and judges whether the state of determinand changes, can quickly identify dry/wet condition, and identification oil/water, be suitable for harmful influence
Leak detection in production, transmission process.
In conjunction with shown in FIG. 1 to FIG. 3, a kind of disclosed infrared optics identification device, including optical detection mechanism
And micro controller module.Optical detection mechanism includes bearing base 10, infrared emission receiving module 20, optical element 30 and protection
Casing 40.Wherein, bearing base 10 is wrapped for installing infrared emission receiving module 20, optical element 30 and protection sleeve pipe 40
The extension 12 for including base body 11 and being extended outward to form by base body 11；Infrared emission receiving module 20 by including but
It is not limited to fastening bolt to be installed on extension 12, for emitting infrared beam, and receives infrared beam and red by what is received
Outer light beam is converted to electric signal；Optical element 30 is set on extension 12, and which is provided with sends out infrared emission receiving module 20
Reflection and refraction occur for the infrared beam penetrated, and guide infrared beam by the received optical interface of infrared emission receiving module 20
33；Protection sleeve pipe 40 is set on extension 12, for infrared emission receiving module 20, and with infrared emission receiving module 20
Connected cable is protected.
Micro controller module is connected with infrared emission receiving module 20 by wired or wireless way, for controlling infrared hair
Penetrate receiving module 20 emit infrared beam, and receive infrared emission receiving module 20 convert after electric signal and according to the telecommunications
Number judge whether the state of determinand changes.
In the present embodiment, infrared emission receiving module 20 includes infrared transmission module (not shown) and infrared receiving module
(not shown), wherein infrared transmission module is connected with micro controller module, to optical element under the control of micro controller module
30 transmitting infrared beams；Infrared receiving module is connected with micro controller module, turns for receiving infrared beam, and by infrared beam
Electric signal transmission is changed into micro controller module.In the present embodiment, infrared transmission module and infrared receiving module are integrated in print
It is assemblied in after brush wiring board on extension 12, the volume of infrared optics identification device can be effectively reduced.
In conjunction with shown in Fig. 3 and Fig. 4, optical element 30 can use different material systems according to application environment and the medium of contact
At, and the material used is compatible with determinand.In the present embodiment, optical element 30 is made of transparent material, certainly, at it
In his embodiment, the permeable material of nontransparent and part infrared beam can also be used.Further, in this embodiment optics
Optical interface 33 on element 30 sends out infrared beam in 20 receive process of infrared emission receiving module in guidance infrared beam
Raw two secondary reflections and refraction.Specifically, optical element 30 includes the component body portion 31 in D font and optical section triangular in shape
32, component body portion 31 has connected outerplanar 311 and exterior arc surface 312, and optical section 32 is set to the outer of component body portion 31
The optical interface 33 is formed in plane 311, and on optical section 32.Optical interface 33 includes the first reflecting surface 331 and second
Reflecting surface 332, wherein the angle between the first reflecting surface 331 and the second reflecting surface 332 is 60 °~120 °, when specific implementation with
It is best that angle between the two, which is 90 °,.First reflecting surface 331 and the second reflecting surface 332 are used to generate infrared beam instead
It penetrates and reflects, and the first reflecting surface 331 and the second reflecting surface 332 are in different media and infrared beam can be made to reflect
Light quantity changes, and the light quantity such as reflected increases or reduces.
Further, the position of optical element 30 shifts in order to prevent, so that the path of infrared beam is affected,
Infrared optics identification device further include pressing lid 50, pressing lid 50 be set on extension 12, and be located at optical element 30 with
Between protection sleeve pipe 40, for being limited to optical element 30.
Further, determinand passes through gap and optics between base body 11 and optical element 30 in order to prevent
It is in-house to optical element 30 and infrared emission receiving module that gap between element 30 and pressing lid 50 enters optical detection
20 impact or destroy, and base body 11 and optical element 30 are equipped with the first sealing ring 60, optical element 30 and pressing lid 50
Between be equipped with the second sealing ring 70.Specifically, the end face that base body 11 is in contact with optical element 30 is recessed inwardly to form
One recessing groove, interior setting first sealing ring 60 of the first recessing groove are final to realize between base body 11 and optical element 30
Sealing；The end face that pressing lid 50 is in contact with optical element 30 is recessed inwardly to form the second recessing groove, sets in the second recessing groove
The second sealing ring 70 is set, it is final to realize optical element 30 and press the sealing between lid 50.In the present embodiment, the first sealing ring 60
It is in D font with the second sealing ring 70.
As shown in Figure 1, protection sleeve pipe 40 is cylindric fitting structure, on the inner wall for the end being connected with bearing base 10
Equipped with internal screw thread, the outer wall of extension 12 is equipped with the external screw thread matched with internal screw thread, protection sleeve pipe 40 by internal screw thread with
Externally threaded cooperation realization is connected with bearing base 10, certainly, in other embodiments, protection sleeve pipe 40 and bearing base 10
It can also be connected by other means, such as snap connection mode.
Further, in order to prevent determinand by protection protection sleeve pipe 40 and press lid 50 between gap enter optics
Inside detection agency, and then infrared emission receiving module 20 and optical element 30 are impacted or are destroyed, protection sleeve pipe 40 with
It presses and is equipped with third sealing ring 80 between lid 50.Specifically, the end face that protection sleeve pipe 40 is in contact with pressing lid 50 is recessed inwardly
Third recessing groove is formed, the setting third sealing ring 80 in third recessing groove is final to realize protection sleeve pipe 40 and pressing lid 50
Between sealing.In the present embodiment, third sealing ring 80 is in O font.
In order to make final output data meet relevant criterion, such as meet API (American Petroleum
Institute, American Petroleum Institute (API)) standard (American Standard) or EN regulation (Europe superscript), infrared optics identification device further includes signal tune
Circuit module is managed, is connected with microprocessor control module, for treated that electric signal is converted to symbol by micro controller module
The electric signal of standardization.Specifically, signal conditioning circuit module includes amplification circuit module, differential circuit module and integrating circuit
Module, amplification circuit module are used to amplify signal processing, differential circuit module and integrating circuit module and examine for signal
Out, it handles and converts.
Further, infrared optics identification device further includes communication circuit module, is connected with micro controller module, is used for
By micro controller module, treated that electric signal is converted to meets the signal of communication protocol, such as meets CAN communication agreement, serial ports
(RS232/485) communication protocol or TCP/IP communication agreement etc..
The working principle of infrared optics identification device of the present invention is as follows:
Optical detection mechanism is placed in determinand, micro controller module controls infrared transmission module and sends out to optical element 30
Infrared beam is penetrated, for infrared beam after two secondary reflections of optical interface 33 and refraction, a part of infrared beam reflects light
Element 30 is learned, remaining infrared beam is received after two secondary reflections by infrared receiving module, and infrared receiving module will receive
Infrared beam be converted to electric signal transmission into micro controller module.Since optical element 30 is present in determinand, light
Educational circles face 33 changes, and the light quantity of the infrared beam reflected is caused to change, so as to cause infrared receiving module reception
The light quantity of infrared beam also change, finally make infrared receiving module export the electric signal into micro controller module
It changes, micro controller module handles the electric signal received and judges whether the state of determinand changes.
Meanwhile micro controller module will treated that electric signal is converted to by signal conditioning circuit module meets related mark
The Data Concurrent that quasi- data or be converted to by communication circuit module meet relevant communication protocol send corresponding data, such as by data
It is sent to host computer or intelligent terminal is medium, realize observing and controlling function.
Infrared optics identification device of the present invention, on the one hand by optical element 30 to infrared beam carry out reflection and
Refraction, so that the light quantity of infrared beam is changed, and then according to the state of the light quantity size detection determinand of infrared beam whether
It changing, structure is simple, and it is easy to operate and safe, on the other hand, relevant criterion is also met by signal conditioning circuit output
Detection data, meet harmful influence field safety standard requirements.
In addition, optical detection mechanism of the invention uses above-mentioned sealing structure, it can be made to infiltrate in determinand for a long time, had
There is the advantages of long service life.Meanwhile each component uses the material system compatible with determinand in optical detection mechanism of the invention
At, it can immerse for a long time in the determinand with material compatible and apply, it, can be by phase when determinand is incompatible with the material that component uses
The material altering for answering component is the material compatible with determinand, compatible to realize, as aluminium is changed to stainless steel, General Purpose Rubber change
For special rubber, to adapt to determinand (such as corrosive liquids).
Technology contents and technical characteristic of the invention have revealed that as above, however those skilled in the art still may base
Make various replacements and modification without departing substantially from spirit of that invention, therefore, the scope of the present invention in teachings of the present invention and announcement
It should be not limited to the revealed content of embodiment, and should include various without departing substantially from replacement and modification of the invention, and be this patent Shen
Please claim covered.
Claims (10)
1. a kind of infrared optics identification device, which is characterized in that including optical detection mechanism and micro controller module, the optics
Detection agency includes:
Bearing base；
Infrared emission receiving module is installed in the bearing base, for emitting infrared beam, and reception infrared beam and general
The infrared beam received is converted to electric signal；
Optical element is set on the bearing base, and the optical element, which is equipped with, makes the transmitting of infrared emission receiving module
Reflection and refraction occur for infrared beam, and guide infrared beam by the received optical interface of infrared emission receiving module；
Protection sleeve pipe is set on bearing base, for protecting to infrared emission receiving module；
The micro controller module is connected with the infrared emission receiving module, for controlling the infrared emission receiving module hair
Infrared beam is penetrated, and receives the electric signal and judges whether the state of determinand changes according to the electric signal.
2. infrared optics identification device according to claim 1, which is characterized in that the optical interface is in guidance infrared light
Beam is made infrared beam occur to reflect and reflect at least once in infrared emission receiving module receive process.
3. infrared optics identification device according to claim 1, which is characterized in that the optical element includes having outer put down
The component body portion in face and the optical section extended outward to form by the outerplanar form optics circle on the optical section
Face.
4. infrared optics identification device according to claim 3, which is characterized in that the component body portion is in D font, institute
It is triangular in shape to state optical section.
5. infrared optics identification device according to any one of claims 1 to 3, which is characterized in that the optical interface
It is in 60 °~120 ° of the first reflecting surface and the second reflecting surface including angle.
6. infrared optics identification device according to claim 1, which is characterized in that further include for being carried out to optical element
The pressing lid of limit, the pressing lid are set on the bearing base, and between the optical element and protection sleeve pipe.
7. infrared optics identification device according to claim 6, which is characterized in that the bearing base and optical element it
Between be equipped with the first sealing ring, the second sealing ring, pressing lid and the protection are equipped between the optical element and pressing lid
Third sealing ring is equipped between casing.
8. infrared optics identification device according to claim 1, which is characterized in that the optical element uses transparent material
Or it is made of the permeable material of nontransparent and part infrared beam, and the material is compatible with determinand.
9. infrared optics identification device according to claim 1, which is characterized in that further include for by micro controller module
Electric signal the is converted to signal conditioning circuit module of standard compliant electric signal that treated, the signal conditioning circuit module with
Micro controller module is connected.
10. a kind of recognition methods based on infrared optics identification device described in claim 1, which is characterized in that including walking as follows
It is rapid:
Optical detection mechanism is placed in determinand by S100, and micro controller module controls infrared emission receiving module to optics member
Part emits infrared beam；
S200, the optical interface on optical element makes infrared beam that reflection and refraction occur, and guides infrared beam by infrared hair
Penetrate receiving module reception；
The infrared beam received is converted to electric signal and is transmitted to micro controller module by S300, infrared emission receiving module；
S400 receives the electric signal and judges whether the state of determinand changes according to the electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789354.1A CN110426167A (en) | 2019-08-26 | 2019-08-26 | A kind of infrared optics identification device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789354.1A CN110426167A (en) | 2019-08-26 | 2019-08-26 | A kind of infrared optics identification device and method |
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| Publication Number | Publication Date |
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| CN110426167A true CN110426167A (en) | 2019-11-08 |
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ID=68415848
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| CN201910789354.1A Pending CN110426167A (en) | 2019-08-26 | 2019-08-26 | A kind of infrared optics identification device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6791088B1 (en) * | 2001-05-04 | 2004-09-14 | Twin Rivers Engineering, Inc. | Infrared leak detector |
| CN203551235U (en) * | 2013-11-01 | 2014-04-16 | 南京卓实电气有限责任公司 | Improved sulfur-hexafluoride laser leakage detector |
| CN204789325U (en) * | 2015-07-13 | 2015-11-18 | 南京信息工程大学 | A infrared gas sensor , sensing system for electrical equipment leak testing |
| CN106092454A (en) * | 2016-07-27 | 2016-11-09 | 山东大学 | Split type gas laser leakage detection apparatus |
| CN208937255U (en) * | 2018-11-06 | 2019-06-04 | 济南火哨安全科技有限公司 | A kind of infrared oil plant leak sensor |
| CN211085602U (en) * | 2019-08-26 | 2020-07-24 | 优必得石油设备(苏州)有限公司 | Infrared optical recognition device |
-
2019
- 2019-08-26 CN CN201910789354.1A patent/CN110426167A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6791088B1 (en) * | 2001-05-04 | 2004-09-14 | Twin Rivers Engineering, Inc. | Infrared leak detector |
| CN203551235U (en) * | 2013-11-01 | 2014-04-16 | 南京卓实电气有限责任公司 | Improved sulfur-hexafluoride laser leakage detector |
| CN204789325U (en) * | 2015-07-13 | 2015-11-18 | 南京信息工程大学 | A infrared gas sensor , sensing system for electrical equipment leak testing |
| CN106092454A (en) * | 2016-07-27 | 2016-11-09 | 山东大学 | Split type gas laser leakage detection apparatus |
| CN208937255U (en) * | 2018-11-06 | 2019-06-04 | 济南火哨安全科技有限公司 | A kind of infrared oil plant leak sensor |
| CN211085602U (en) * | 2019-08-26 | 2020-07-24 | 优必得石油设备(苏州)有限公司 | Infrared optical recognition device |
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