CN111693529A - Hand-held type tail gas detection device - Google Patents
Hand-held type tail gas detection device Download PDFInfo
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- CN111693529A CN111693529A CN202010774614.0A CN202010774614A CN111693529A CN 111693529 A CN111693529 A CN 111693529A CN 202010774614 A CN202010774614 A CN 202010774614A CN 111693529 A CN111693529 A CN 111693529A
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 description 40
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
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- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0096—Investigating consistence of powders, dustability, dustiness
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- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8578—Gaseous flow
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a hand-held tail gas detection device, which comprises: the tail gas exhaust device comprises a reflector, a gas exhaust pipe and a gas exhaust pipe, wherein the reflector is provided with a channel for receiving tail gas, one side of the channel is provided with a mounting hole, and one side of the channel, which is opposite to the mounting hole, is provided with a reflecting part; the laser is arranged on one side of the reflector, and a laser emitting and receiving module of the laser is arranged in the mounting hole to receive the light reflected by the reflecting part; one end of the supporting rod is connected with the laser; the analysis module is arranged at the other end of the supporting rod, the analysis module is connected with the laser to analyze signals received by the laser, and one side of a shell of the analysis module is provided with an arm sleeve suitable for an arm to penetrate through; and the display is arranged on the analysis module to display the analysis result. This device adopts the integrative structure of hand-held type, carries lightly, convenient to use, reduces the operator and receives tail gas influence.
Description
Technical Field
The invention relates to the field of motor vehicle detection equipment, in particular to a handheld tail gas detection device.
Background
The tail gas discharged by motor vehicles contains solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, sulfur oxides and other pollutants, which are important causes of air pollution and are the main causes of frequent haze in all cities throughout the country. The existing instruments and equipment for detecting the components of the tail gas of the motor vehicle have the following problems: the body is heavy, the operation mode is single, the use procedure is complex, and the like. And the taste and color of the exhaust plume emitted by the motor vehicle can cause inconvenience for the operation of an operator and even influence the physical health of the operator.
Disclosure of Invention
In order to solve the technical problems, the invention provides a handheld tail gas detection device which is simple in structure and convenient to operate.
According to the embodiment of the invention, the handheld tail gas detection device comprises: the tail gas exhaust device comprises a reflector, a gas exhaust pipe and a gas exhaust pipe, wherein the reflector is provided with a channel for receiving tail gas, one side of the channel is provided with a mounting hole, and one side of the channel, which is opposite to the mounting hole, is provided with a reflecting part; the laser is arranged on one side of the reflector, and a laser emitting and receiving module of the laser is arranged in the mounting hole to receive the light reflected by the reflecting part; one end of the supporting rod is connected with the laser; the analysis module is arranged at the other end of the supporting rod, the analysis module is connected with the laser to analyze signals received by the laser, and one side of a shell of the analysis module is provided with an arm sleeve suitable for an arm to penetrate through; and the display is arranged on the analysis module to display the analysis result.
According to the handheld tail gas detection device provided by the embodiment of the invention, the reflector, the laser and the analysis module are connected through the support rod, so that an operator can conveniently detect the tail gas and is easy to hold, and the problems that the operator is affected by the tail gas due to inconvenience in carrying, single operation, complex use procedure and the like are solved.
According to one embodiment of the present invention, the reflector is a hollow column, opposite sides of the reflector are respectively formed as planes, one of the planes is provided with the mounting hole, and an inner wall surface of the other plane is provided with the reflecting portion.
According to one embodiment of the invention, the reflecting portion is a mirror.
According to one embodiment of the invention, said laser is soldered to one of said planar surfaces of said reflector.
According to one embodiment of the invention, the support rod is formed as a telescopic rod which is telescopic in its axial direction, the telescopic rod comprising: the inner connecting rod is connected with the laser at one end; and one end of the outer connecting rod is movably connected with the other end of the inner connecting rod, and the other end of the outer connecting rod is connected with the analysis module.
According to one embodiment of the invention, the telescopic rod further comprises: the connector is arranged at the joint of the inner connecting rod and the outer connecting rod, and the connector can move to adjust the relative position between the inner connecting rod and the outer connecting rod.
According to one embodiment of the invention, one end of the inner connecting rod is movably connected to the laser, which is rotatable around the axis of the inner connecting rod.
According to one embodiment of the invention, the display and the arm sleeve are arranged on two opposite sides of the shell, and the display surface of the display extends obliquely towards the direction of the user.
According to an embodiment of the present invention, further comprising: the holding handle is arranged on the supporting rod and corresponds to the arm sleeve in position.
According to one embodiment of the invention, the analysis module is electrically connected to the laser via a cable, which is arranged inside the support rod.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a handheld exhaust gas detection device according to an embodiment of the present invention.
Reference numerals:
a hand-held exhaust gas detection device 100;
a reflector 10; a mounting hole 11; a reflection section 12;
a laser 20; a rotation nut 21;
a support rod 30; an inner connecting rod 31; an outer connecting rod 32; a connector 33;
an analysis module 40; an arm cuff 41;
a display 50;
the handle 60 is gripped.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The handheld exhaust gas detection device 100 according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The hand-held exhaust gas detection device 100 according to an embodiment of the present invention includes a reflector 10, a laser 20, a support rod 30, an analysis module 40, and a display 50.
Specifically, the reflector 10 has a channel for receiving exhaust gas, a mounting hole 11 is formed on one side of the channel, a reflection portion 12 is formed on the side of the channel opposite to the mounting hole 11, the laser 20 is disposed on one side of the reflector 10, a laser emitting and receiving module of the laser 20 is disposed in the mounting hole 11 for receiving light reflected by the reflection portion 12, one end of the support rod 30 is connected to the laser 20, an analysis module 40 is disposed on the other end of the support rod 30, the analysis module 40 is connected to the laser 20 for analyzing signals received by the laser 20, an arm sleeve 41 adapted to allow an arm to pass through is formed on one side of a housing 42 of the analysis module 40, and the display 50 is disposed on the analysis module 40 for displaying an analysis result.
In other words, the handheld exhaust gas detection device 100 according to the embodiment of the present invention may be used for detecting exhaust gas of a vehicle. The reflector 10 is a hollow cylinder, two sides of the reflector are parallel plane structures, one side connected with the laser 20 is provided with a mounting hole 11, and the other side is provided with a reflecting part 12. The laser 20 is connected with the analysis module 40 through the support rod 30, and the laser emitting and receiving module is arranged inside the laser 20. The analysis module 40 is provided with a display 50 on the top and an arm sleeve 41 on the bottom.
It should be noted that, in the process of using the handheld exhaust gas detecting device 100 to detect exhaust gas, firstly, an operator can pass an arm through the arm sleeve 41 to hold the supporting rod 30, and then place the reflector 10 at the exhaust gas discharging position of the motor vehicle, so that the exhaust gas can smoothly pass through the channel of the reflector 10. The laser emitting and receiving module of the laser 20 emits laser, which reaches the reflection portion 12 through the mounting hole 11, and then is reflected by the reflection portion 12 and transmitted back to the receiving module of the laser 20. The laser emitting and receiving module on the laser 20 can improve the accuracy of the tail gas detection by utilizing the characteristics of high laser collimation and good directivity. The analysis module 40 obtains the result through the analysis process, so that the final analysis result is displayed through the display 50.
Therefore, according to the handheld tail gas detection device 100 provided by the embodiment of the invention, the reflector 10, the laser 20 and the analysis module 40 are connected through the support rod, so that the relative position of the device can be adjusted according to the tail gas detection requirement, the detection is convenient, the operation is easy, and the problems that the carrying is inconvenient, the operation is single, the use procedure is complex, and an operator is affected by the tail gas are solved.
According to one embodiment of the present invention, the reflector 10 is a hollow column shape, opposite sides of the reflector 10 are respectively formed as planes, one plane is provided with the mounting hole 11, and the inner wall surface of the other plane is provided with the reflection part 12.
In other words, the reflector 10 is the foremost part of the entire apparatus, and is also the part that is in direct contact with the exhaust gas. The reflector 10 has a hollow cylindrical structure, and both sides are designed to have a planar structure, thereby facilitating the installation of the mounting hole 11 with the laser 20 and the other side reflecting part 12. The mounting hole 11 is located on one side of the laser 20, and the reflecting portion 12 is mounted on the inner wall surface of the plane of the reflector 10.
Therefore, the hollow cylindrical structure of the reflector 10 facilitates smooth passage of the exhaust gas, and the mounting hole 11 is connected with the laser 20 to facilitate emission and return of the laser. The tail gas passes through the laser emitting and receiving module of the laser 20 through the reflector 10, and the laser is reflected by the reflecting part 12 and returns to the laser emitting and receiving module of the laser 20 through the mounting hole 11. When the exhaust gas passes through the laser, the laser part is blocked, and the reflection part 12 reflects the laser part back to the laser emitting and receiving module of the laser 20.
Preferably, the reflection part 12 is a mirror. The reflector installed on the inner wall plane of the reflector 10 achieves the effect of transmitting the laser back to the laser 20, so that the subsequent analysis and treatment of the tail gas are facilitated.
Further, the laser 20 is welded to one plane of the reflector 10. One side of the reflector 10 provided with the mounting hole 11 is arranged to be a plane so as to be connected with the laser 20 conveniently, and the reflector 10 is connected with the laser 20 more firmly in a welding mode, so that the device is prevented from being damaged due to improper operation of personnel in the tail gas detection process.
According to one embodiment of the present invention, the support rod 30 is formed as a telescopic rod that is retractable in its axial direction, the telescopic rod comprising: inner connecting rods 31 and outer connecting rods 32.
One end of the inner connecting rod 31 is connected to the laser 20, one end of the outer connecting rod 32 is movably connected to the other end of the inner connecting rod 31, and the other end of the outer connecting rod 32 is connected to the analysis module 40.
In other words, the length of the telescopic rod can be changed according to the actual detection environment and the vehicle type, and the telescopic rod comprises an inner connecting rod and an outer connecting rod. The inner diameter of the outer connecting rod 32 is slightly larger than that of the inner connecting rod 31, and the inner connecting rod 31 can be extended and retracted into the outer connecting rod 32. The other end of the outer connecting rod 32 is fixed to the housing 42 of the analysis module 40 by being fitted to the analysis module 40. The other end of the inner link 31 is connected to the laser 20 through a rotation nut 21.
Thus, the analysis module 40 is connected to the laser 20 by a telescopic rod, which is composed of an inner connecting rod 31 and an outer connecting rod 32. The operator can reach the purpose that detects through the length that changes the telescopic link at the in-process that detects tail gas, and this process has avoided the operator closely to contact tail gas, has guaranteed the security and the travelling comfort of operation.
Further, the telescopic link still includes: a connector 33.
The connector 33 is disposed at a connection position of the inner connecting rod 31 and the outer connecting rod 32, and the connector 33 is movable to adjust a relative position between the inner connecting rod 31 and the outer connecting rod 32.
One end of the inner connecting rod 31 is connected with one end of the outer connecting rod 32 through the connector 33, and an operator can extend and retract the inner connecting rod 31 into the outer connecting rod 32 by adjusting the connector 33, so that the purpose of adjusting the length of the telescopic rod is achieved.
According to one embodiment of the present invention, one end of the inner connecting rod 31 is movably connected to the laser 20, and the laser 20 is rotatable around the axis of the inner connecting rod 31.
In other words, the laser 20 is connected to the inner connecting rod 31 by the rotation nut 21, and the laser 20 can be rotated to a designated position according to the detected environmental change, so that the exhaust gas more smoothly passes through the reflector 10.
Therefore, the inner connecting rod 31 is connected with the rotating nut 21, so that the laser 20 can rotate around the axis of the inner connecting rod 31, and the purpose of changing the position of the laser 20 according to different vehicle models is achieved.
Alternatively, the display 50 and the arm cover 41 are provided on opposite sides of the housing 42, and the display surface of the display 50 extends obliquely toward the user.
In other words, the analysis module 40 is provided with a housing 42, and the arm cuff 41 is connected to the housing 42 and located below the analysis module 40. The display 50 is located at an upper portion of the analysis module 40, and the display surface is disposed obliquely toward the user.
Therefore, the operator can put the arm deep into the arm sleeve 41, so that the detection process is more stable. And the housing 42 can protect the internal complex circuit from external damage. The design of the display 50 with a slope towards the viewer side facilitates the operator to view the analysis results.
Preferably, the handheld exhaust gas detecting device 100 further includes: the handle 60 is gripped.
Wherein, the holding handle 60 is arranged on the support rod and corresponds to the position of the arm sleeve 41. The operator can pass the arm sleeve 41 with his or her arm and hold the grip handle 60 with his or her hand. Through the design of increasing the gripping handle 60, the operator can hold the device for a long time in the detection process, and the use is more convenient. The operator can change the position of the detection device according to the change of the vehicle type more freely, so that a better detection effect can be achieved. When not in use, the carrying is more convenient.
According to one embodiment of the invention, the analysis module 40 is electrically connected to the laser 20 by a cable, which is arranged inside the support rod. The laser 20 communicates with the analysis module 40 via a cable, which is disposed within the support pole, which is compact and aesthetically pleasing and reduces scratches during operation.
In summary, the handheld exhaust gas detection device 100 according to the embodiment of the present invention is easier to operate and portable than the conventional detection devices; the laser 20 is connected with the reflector 10 by welding, so that the detection device is more stable; the laser 20 is connected with the inner connecting rod 31, so that the multi-direction rotation function can be realized; the telescopic mechanism of the telescopic rod achieves the aim of conveniently realizing the detection of the tail gas of the motor vehicles of different vehicle types by adjusting the length; the communication cable is arranged in the supporting rod mechanism, so that the appearance is more attractive, and the damage to the outside can be avoided; due to the structural design of the arm sleeve 41 on the analysis module 40, an operator can insert an arm into the arm sleeve in the detection process, so that the device is not easy to shake in the detection process, and the detection accuracy is improved; the display screen of the display 50 is designed to be inclined towards the direction of the observer, so that the operator can observe the analysis result more conveniently; the design of the grip handle 60 facilitates the operator in controlling the position of the device.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A hand-held type tail gas detection device which characterized in that includes:
the tail gas exhaust device comprises a reflector, a gas exhaust pipe and a gas exhaust pipe, wherein the reflector is provided with a channel for receiving tail gas, one side of the channel is provided with a mounting hole, and one side of the channel, which is opposite to the mounting hole, is provided with a reflecting part;
the laser is arranged on one side of the reflector, and a laser emitting and receiving module of the laser is arranged in the mounting hole to receive the light reflected by the reflecting part;
one end of the supporting rod is connected with the laser;
the analysis module is arranged at the other end of the supporting rod, the analysis module is connected with the laser to analyze signals received by the laser, and one side of a shell of the analysis module is provided with an arm sleeve suitable for an arm to penetrate through;
and the display is arranged on the analysis module to display the analysis result.
2. The hand-held exhaust gas detection device according to claim 1, wherein the reflector is a hollow cylinder, two opposite sides of the reflector are respectively formed into planes, one of the planes is provided with the mounting hole, and an inner wall surface of the other plane is provided with the reflection portion.
3. The hand-held exhaust gas detection device according to claim 2, wherein the reflecting portion is a mirror.
4. The hand-held exhaust gas detection device according to claim 2, wherein the laser is welded to one of the planar surfaces of the reflector.
5. The hand-held exhaust gas detection device according to claim 1, wherein the support rod is formed as a telescopic rod that is telescopic along its axial direction, the telescopic rod comprising:
the inner connecting rod is connected with the laser at one end;
and one end of the outer connecting rod is movably connected with the other end of the inner connecting rod, and the other end of the outer connecting rod is connected with the analysis module.
6. The hand-held exhaust gas detection device according to claim 5, wherein the telescoping rod further comprises:
the connector is arranged at the joint of the inner connecting rod and the outer connecting rod, and the connector can move to adjust the relative position between the inner connecting rod and the outer connecting rod.
7. The hand-held exhaust gas detection device according to claim 5, wherein one end of the inner connecting rod is movably connected to the laser, and the laser is rotatable about an axis of the inner connecting rod.
8. The hand-held exhaust gas detection device according to claim 1, wherein the display and the arm are disposed on opposite sides of the housing, and a display surface of the display is inclined to extend in a direction toward a user.
9. The hand-held exhaust gas detection device according to claim 1, further comprising:
the holding handle is arranged on the supporting rod and corresponds to the arm sleeve in position.
10. The hand-held exhaust gas detection device according to any one of claims 1 to 9, wherein the analysis module is electrically connected to the laser via a cable, the cable being disposed within the support rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010448303 | 2020-05-25 | ||
| CN2020104483035 | 2020-05-25 |
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| CN111693529A true CN111693529A (en) | 2020-09-22 |
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| CN202010614974.4A Pending CN111562264A (en) | 2020-05-25 | 2020-06-30 | Hand-held motor vehicle exhaust detection method |
| CN202010774614.0A Pending CN111693529A (en) | 2020-05-25 | 2020-08-04 | Hand-held type tail gas detection device |
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| CN202010614974.4A Pending CN111562264A (en) | 2020-05-25 | 2020-06-30 | Hand-held motor vehicle exhaust detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112903687A (en) * | 2021-04-07 | 2021-06-04 | 北京联杰领航环保科技有限公司 | Gas emission detector |
| CN113049755A (en) * | 2021-03-26 | 2021-06-29 | 佛山翰创检测仪器有限公司 | Pollutant detection equipment is put to on-vehicle petrol car |
| CN113671146A (en) * | 2021-10-22 | 2021-11-19 | 南京沛沛骧环保科技有限公司 | Underground detector capable of detecting combustible gas |
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| CN115219670A (en) * | 2022-07-29 | 2022-10-21 | 上海市计量测试技术研究院 | Black smoke generation and value fixing method |
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