CN113049539A - Optical signal detection device of laser gas analyzer - Google Patents
Optical signal detection device of laser gas analyzer Download PDFInfo
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- CN113049539A CN113049539A CN201911385753.8A CN201911385753A CN113049539A CN 113049539 A CN113049539 A CN 113049539A CN 201911385753 A CN201911385753 A CN 201911385753A CN 113049539 A CN113049539 A CN 113049539A
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- laser gas
- detection device
- optical signal
- signal detection
- gas analyzer
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides an optical signal detection device of a laser gas analyzer. The optical signal detection device of the laser gas analyzer comprises: a housing and a shield; the top and the bottom of the two sides of the shell are both fixedly connected with auxiliary blocks; the equal fixedly connected with fixed plate in both sides of protection casing, two the equal fixedly connected with locking structure in top of fixed plate, the bottom of the inner wall of protection casing is provided with the protection pad. According to the optical signal detection device of the laser gas analyzer, the display screen and the keys on the shell are protected conveniently through the arrangement of the protective cover, the damage to the display screen or the keys due to the fact that external hard objects are collided and collided when the device is transported or not used is avoided, the service life of the laser gas analyzer is further shortened, and the device has a good protection function; the setting of relocking structure and auxiliary block is convenient for carry out the chucking with the protection casing and is connected with the casing, has guaranteed the stability of protection casing to the casing.
Description
Technical Field
The invention relates to the field of laser gas analyzers, in particular to an optical signal detection device of a laser gas analyzer.
Background
The TDLAS technique is essentially a spectral absorption technique that obtains the concentration of a gas by analyzing the selective absorption of laser light by the gas, and differs from conventional infrared spectral absorption techniques in that the spectral width of the semiconductor laser is much smaller than the broadening of the gas absorption line.
Among the correlation technique, the laser gas analysis appearance is used for obtaining the information of molecular structure, study its dynamics process and trace gas monitoring analysis, current laser gas analysis appearance's light signal detection device is when not using or carrying, owing to lack corresponding safeguard function, so that when not using, or when carrying, display element or control element on laser gas analysis appearance's light signal detection device when bumping with external object, cause laser gas analysis appearance's light signal detection device's damage easily, and then reduced laser gas analysis appearance's light signal detection device's life, can't satisfy different crowds' demand.
Therefore, it is necessary to provide an optical signal detection device of a laser gas analyzer to solve the above technical problems.
Disclosure of Invention
The invention provides an optical signal detection device of a laser gas analyzer, which solves the problem that a display element or a control element in the laser gas analyzer cannot be protected.
In order to solve the above technical problem, the present invention provides an optical signal detection device for a laser gas analyzer, comprising:
a housing and a shield;
the top and the bottom of the two sides of the shell are both fixedly connected with auxiliary blocks;
the protective cover comprises a protective cover and is characterized in that two sides of the protective cover are fixedly connected with fixing plates, the tops of the two fixing plates are fixedly connected with locking structures, the bottom of the inner wall of the protective cover is provided with a protective pad, and the top of the protective cover is provided with a sealing sleeve;
the locking structure comprises a rotating shaft, the bottom end of the rotating shaft is rotatably connected to the top of the fixed plate, and the top of one side of the fixed plate is fixedly connected with a baffle;
the carrying structure is arranged between the two sides of the shell and comprises two sliding blocks, and the two sliding blocks are respectively connected to the two sides of the shell in a sliding manner;
the shell is an optical signal detection device of a laser gas analyzer in the prior art, and the laser gas analyzer is a TDLAS technology which is essentially a spectrum absorption technology, and the concentration of gas is obtained by analyzing the selective absorption of laser by the gas. The difference between the semiconductor laser and the traditional infrared spectrum absorption technology is that the spectrum width of the semiconductor laser is far less than the broadening of a gas absorption spectrum line;
the protective cover is arranged, so that the display screen and the keys on the shell can be conveniently protected, the damage of the display screen or the keys caused by collision and collision of external hard objects during transportation or non-use is avoided, and the service life of the laser gas analyzer is further shortened;
the arrangement of the locking structure and the auxiliary block facilitates the connection of the protective cover and the shell, so that the protective cover can protect the shell;
carry the setting of structure, the staff of being convenient for carries laser gas analyzer, carries the gliding orbit of two sliding blocks in the structure moreover and 5 centimetres to display screen direction with the centre of casing.
Preferably, a through hole is formed between the top and the bottom of the auxiliary block, and a limit groove is formed in one side of the auxiliary block and located at one side of the through hole.
Preferably, an operating rod penetrates through the bottom of the baffle, the top end of the operating rod penetrates through the baffle and extends to the top of the baffle, and an operating ball is arranged on the operating rod extending to the top of the baffle.
Preferably, the bottom fixedly connected with stopper of action bars, the top of stopper with fixedly connected with extrusion spring between the bottom of baffle, and be located the surface of action bars.
Preferably, two the one side that the sliding block leaves mutually all rotates and is connected with the connecting plate, two fixedly connected with carries the board between the opposite side of connecting plate.
Preferably, the surface of the bottom of the shell is provided with a concave groove, and the two sides of the bottom of the shell are respectively provided with a display screen and a key.
Preferably, the two sides of the bottom of the shell are provided with supporting legs, and the bottoms of the supporting legs are provided with non-slip mats.
Compared with the related art, the optical signal detection device of the laser gas analyzer provided by the invention has the following beneficial effects:
the invention provides an optical signal detection device of a laser gas analyzer, which is convenient for protecting a display screen and keys on a shell through the arrangement of a protective cover, and avoids the damage of the display screen or the keys due to the collision of external hard objects during transportation or nonuse, thereby further reducing the service life of the laser gas analyzer and having good protection function; the setting of relocking structure and auxiliary block is convenient for carry out the chucking with the protection casing and is connected with the casing, has guaranteed the stability of protection casing to the casing.
Drawings
Fig. 1 is a schematic structural diagram of an optical signal detection device of a laser gas analyzer according to a preferred embodiment of the present invention;
FIG. 2 is a bottom view of the housing of FIG. 1;
fig. 3 is a schematic structural view of the locking structure shown in fig. 1.
Reference numbers in the figures: 1. the novel anti-slip device comprises a shell, 2, a protective cover, 3, an auxiliary block, 31, an opening, 32, a limiting groove, 4, a fixing plate, 5, a locking structure, 51, a rotating shaft, 52, a baffle, 53, an operating rod, 54, an operating ball, 55, a limiting block, 56, an extrusion spring, 6, a protective pad, 7, a sealing sleeve, 8, a carrying structure, 81, a sliding block, 82, a connecting plate, 83, a carrying plate, 9, a concave groove, 10, a display screen, 11, a key, 12, a supporting leg, 13 and an anti-slip pad.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic structural diagram of an optical signal detection apparatus of a laser gas analyzer according to a preferred embodiment of the present invention; FIG. 2 is a bottom view of the housing of FIG. 1; fig. 3 is a schematic structural view of the locking structure shown in fig. 1. The optical signal detection device of the laser gas analyzer comprises:
a housing 1 and a shield 2;
the top and the bottom of the two sides of the shell 1 are both fixedly connected with auxiliary blocks 3;
the two sides of the protective cover 2 are fixedly connected with fixing plates 4, the tops of the two fixing plates 4 are fixedly connected with locking structures 5, the bottom of the inner wall of the protective cover 2 is provided with a protective pad 6, and the top of the protective cover 2 is provided with a sealing sleeve 7;
the locking structure 5 comprises a rotating shaft 51, the bottom end of the rotating shaft 51 is rotatably connected to the top of the fixing plate 4, and the top of one side of the fixing plate 4 is fixedly connected with a baffle plate 52;
the carrying structure 8 is arranged between two sides of the shell 1, the carrying structure 8 comprises two sliding blocks 81, and the two sliding blocks 81 are respectively connected to two sides of the shell 1 in a sliding manner;
the housing 1 is an optical signal detection device of a laser gas analyzer in the prior art, and the laser gas analyzer is a TDLAS technology which is essentially a spectrum absorption technology, and obtains the concentration of gas by analyzing the selective absorption of laser light by gas. The difference between the semiconductor laser and the traditional infrared spectrum absorption technology is that the spectrum width of the semiconductor laser is far less than the broadening of a gas absorption spectrum line;
the protective cover 2 is arranged, so that the display screen 10 and the keys 11 on the shell 1 can be conveniently protected, and the damage to the display screen 10 or the keys 11 caused by the collision of external hard objects during transportation or non-use is avoided, and the service life of the laser gas analyzer is further shortened;
the locking structure 5 and the auxiliary block 3 are arranged to facilitate the connection between the protective cover 2 and the shell 1, so that the protective cover 2 can protect the shell 1;
the arrangement of the carrying structure 8 is convenient for a worker to carry the laser gas analyzer, and the sliding tracks of the two sliding blocks 81 in the carrying structure are 5 cm from the middle of the shell 1 to the display screen 10;
the two auxiliary blocks 3 at the tail part are arranged, so that the protective cover 2 can be connected with the tail part when in use, and the protective cover 2 is prevented from being placed randomly;
the optical signal detection device is characterized in that an optical signal is transmitted to a receiving end through an optical fiber, and the receiving end is provided with an element for receiving the optical signal; however, since the light recognition of our light is not as high as the electricity recognition, we cannot obtain the original signal by directly restoring the light signal; there is a process of converting optical signals into electrical signals, then amplifying the electrical signals by electronic circuits, and finally restoring the electrical signals into original signals, and the receiving and converting element is called an optical signal detection device.
A through hole 31 is formed between the top and the bottom of the auxiliary block 3, and a limit groove 32 is formed in one side of the auxiliary block 3 and one side of the auxiliary block located at the through hole 31;
the through opening 31 facilitates insertion of the rotation shaft, and the limiting groove 32 facilitates insertion of the subsequent limiting block 55.
An operating rod 53 penetrates through the bottom of the baffle plate 52, the top end of the operating rod 53 penetrates through the baffle plate 52 and extends to the top of the baffle plate 52, and an operating ball 54 is arranged on the operating rod 53 extending to the top of the baffle plate 52;
the operation ball 54 is provided to facilitate the worker to move the operation rod 53 up and down by the operation ball 54, and further move the limit block 55 up and down.
A limiting block 55 is fixedly connected to the bottom end of the operating rod 53, and an extrusion spring 56 is fixedly connected between the top of the limiting block 55 and the bottom of the baffle plate 52 and is positioned on the outer surface of the operating rod 53;
through the elastic force of extrusion spring 56 self, can extrude stopper 55 for stopper 55 downstream in order to insert the spacing groove 32, thereby form the chucking with auxiliary block 3, guaranteed the stability of axis of rotation 51 after inserting auxiliary block 3, indirectly guaranteed the stability after protection casing 2 is connected with casing 1.
One sides of the two sliding blocks 81, which are separated from each other, are rotatably connected with connecting plates 82, and a carrying plate 83 is fixedly connected between the other sides of the two connecting plates 82;
the carrying plate 83 is arranged, so that the carrying plate 83 is held by a worker to carry the laser gas analyzer, and the laser gas analyzer is convenient to carry and good in stability during carrying.
The outer surface of the bottom of the shell 1 is provided with a concave groove 9, and two sides of the bottom of the shell 1 are respectively provided with a display screen 10 and a key 11;
display screen and button 11 are used for controlling laser gas analysis appearance, and the setting of concave groove 9 is convenient for, when the protection, play sealed isolated effect in inserting concave groove 9 through the seal cover.
Supporting legs 12 are arranged on two sides of the bottom of the shell 1, and anti-skid pads 13 are arranged at the bottoms of the two supporting legs 12;
supporting leg 12 and slipmat 13's setting is convenient for when using, supports laser gas analysis appearance, avoids laser gas analysis appearance direct and ground to carry out the contact.
The working principle of the optical signal detection device of the laser gas analyzer provided by the invention is as follows:
when the laser gas analyzer is not used or carried, the protective cover 2 is aligned to one surface of the display screen 10, the rotating shafts 51 on two sides of the protective cover 2 are inserted into the auxiliary block 3 through the through holes, so that the protective cover 2 is tightly attached to the front surface of the shell 1, and the sealing sleeve 7 is positioned in the concave groove 9;
the axis of rotation 51 of 2 both sides of protection casing inserts the inside back of auxiliary block 3 through opening 31, two axis of rotation 51 of manual rotation again, rotation through two axis of rotation 51, can drive two stopper 55 and two baffle 52 and rotate, make stopper 55 rotate to ninety degrees can, rethread extrusion spring 56 self's elastic force, can extrude stopper 55, make stopper 55 insert in spacing groove 32, thereby form the chucking with auxiliary block 3, the stability after axis of rotation 51 inserts auxiliary block 3 has been guaranteed, the stability after protection casing 2 is connected with casing 1 has been guaranteed indirectly.
Compared with the related art, the optical signal detection device of the laser gas analyzer provided by the invention has the following beneficial effects:
the protective cover 2 is arranged, so that the display screen 10 and the keys 11 on the shell 1 can be conveniently protected, the damage to the display screen 10 or the keys 11 caused by the collision of external hard objects during transportation or non-use is avoided, the service life of the laser gas analyzer is further shortened, and the protective cover has a good protective function; the setting of relocking structure 5 and auxiliary block 3 is convenient for carry out the chucking with protection casing 2 and casing 1 and is connected, has guaranteed the stability of protection casing 2 to casing 1.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An optical signal detection device of a laser gas analyzer, comprising:
a housing and a shield;
the top and the bottom of the two sides of the shell are both fixedly connected with auxiliary blocks;
the protective cover comprises a protective cover and is characterized in that two sides of the protective cover are fixedly connected with fixing plates, the tops of the two fixing plates are fixedly connected with locking structures, the bottom of the inner wall of the protective cover is provided with a protective pad, and the top of the protective cover is provided with a sealing sleeve;
the locking structure comprises a rotating shaft, the bottom end of the rotating shaft is rotatably connected to the top of the fixed plate, and the top of one side of the fixed plate is fixedly connected with a baffle;
carry the structure, carry the structure set up in between the both sides of casing, carry the structure and include two sliding blocks, two sliding block respectively sliding connection in the both sides of casing.
2. The optical signal detection device of claim 1, wherein a through hole is formed between the top and the bottom of the auxiliary block, and a position-limiting groove is formed on one side of the auxiliary block and on one side of the through hole.
3. The optical signal detection device of the laser gas analyzer as claimed in claim 1, wherein an operation rod penetrates through a bottom of the baffle, a top end of the operation rod penetrates through the baffle and extends to a top of the baffle, and an operation ball is disposed on the operation rod extending to the top of the baffle.
4. The optical signal detection device of the laser gas analyzer as claimed in claim 3, wherein a limiting block is fixedly connected to the bottom end of the operating rod, and an extrusion spring is fixedly connected between the top of the limiting block and the bottom of the baffle and located on the outer surface of the operating rod.
5. The optical signal detection device of the laser gas analyzer as claimed in claim 1, wherein the two sliding blocks are rotatably connected to one sides thereof, and a carrying plate is fixedly connected between the other sides of the two connecting plates.
6. The optical signal detection device of the laser gas analyzer as claimed in claim 1, wherein the outer surface of the bottom of the housing is provided with a concave groove, and the two sides of the bottom of the housing are respectively provided with a display screen and a key.
7. The optical signal detection device of the laser gas analyzer as claimed in claim 1, wherein support legs are provided on both sides of the bottom of the housing, and anti-slip pads are provided on the bottoms of both of the support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385753.8A CN113049539A (en) | 2019-12-29 | 2019-12-29 | Optical signal detection device of laser gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385753.8A CN113049539A (en) | 2019-12-29 | 2019-12-29 | Optical signal detection device of laser gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113049539A true CN113049539A (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911385753.8A Pending CN113049539A (en) | 2019-12-29 | 2019-12-29 | Optical signal detection device of laser gas analyzer |
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| CN (1) | CN113049539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288791A (en) * | 2023-10-12 | 2023-12-26 | 苏州星帆华镭光电科技有限公司 | Protective handheld spectrometer |
-
2019
- 2019-12-29 CN CN201911385753.8A patent/CN113049539A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288791A (en) * | 2023-10-12 | 2023-12-26 | 苏州星帆华镭光电科技有限公司 | Protective handheld spectrometer |
| CN117288791B (en) * | 2023-10-12 | 2024-02-09 | 苏州星帆华镭光电科技有限公司 | Protective handheld spectrometer |
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Application publication date: 20210629 |
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| WD01 | Invention patent application deemed withdrawn after publication |