Anti-interference signal processing device of TDLAS (Tunable Diode Laser Absorption Spectroscopy) laser gas detector

Abstract

The utility model relates to the technical field of information processing, in particular to an anti-interference signal processing device of a TDLAS (Tunable Diode Laser Absorption Spectroscopy) laser gas detector, which comprises a shielding mechanism and a processing mechanism, the processing mechanism is arranged inside the shielding mechanism, the shielding mechanism comprises a shielding cover, a wave absorbing shell and an electromagnetic shielding paint layer, the wave-absorbing shell is fixedly connected to the outside of the shielding case, and the electromagnetic shielding paint layer is sprayed to the outside of the wave-absorbing shell; the processing mechanism comprises a panel and two guide plates, the two guide plates are symmetrically and fixedly connected to the rear surface of the panel, and a fixing plate is fixedly connected between the two guide plates. In the using process, electromagnetic interference is subjected to multi-layer shielding through the shielding cover, the wave absorbing shell and the electromagnetic shielding paint layer; in addition, when the processing mechanism is disassembled and assembled, the processing mechanism can be disassembled and assembled only by adjusting the position of the insertion block, tools are not needed, and maintenance and use of workers are facilitated.

Description

An anti-interference signal processing device for a TDLAS laser gas detector Technical Field

[0001] This utility model relates to the field of information processing technology, specifically to an anti-interference signal processing device for a TDLAS laser gas detector. Background Technology

[0002] In today's industrial and environmental monitoring fields, TDLAS (Tunable Diode Laser Absorption Spectroscopy) laser gas detectors play a crucial role. They boast significant advantages such as high sensitivity, high selectivity, and rapid response. However, their actual application environments are often extremely complex and harsh, with various interference factors, posing a serious threat to detection accuracy and reliability.

[0003] In some strong electromagnetic field environments, such as near high-voltage substations, the metal casing of the instrument may not be able to effectively shield high-frequency electromagnetic signals, causing interference to the internal circuits, affecting the accuracy and stability of signal processing, and making it inconvenient to disassemble and reassemble the internal components during maintenance, thus affecting the efficiency of the staff. Therefore, an anti-interference signal processing device for TDLAS laser gas detector is proposed. Summary of the Invention

[0004] In view of this, the present invention provides an anti-interference signal processing device for a TDLAS laser gas detector to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0005] The technical solution of this utility model is implemented as follows: an anti-interference signal processing device for a TDLAS laser gas detector, comprising a shielding mechanism and a processing mechanism, wherein the processing mechanism is installed inside the shielding mechanism, and the shielding mechanism comprises a shielding cover, a wave-absorbing shell and an electromagnetic shielding paint layer, wherein the wave-absorbing shell is fixedly connected to the outside of the shielding cover, and the electromagnetic shielding paint layer is sprayed on the outside of the wave-absorbing shell.

[0006] The processing mechanism includes a panel and two guide plates. The two guide plates are symmetrically fixedly connected to the rear surface of the panel, and a fixing plate is fixedly connected between the two guide plates. The top of the fixing plate is fixedly connected to the main body of the signal processing device.

[0007] More preferably, the outer side wall of the shielding cover has two first through slots symmetrically formed, and the guide plate has a second through slot on one side. A fixing block is fixedly connected to the inner side wall of the first through slot. A through hole is formed on one side of the fixing block. A rod is slidably connected to the inner side wall of the through hole. An insert block is fixedly connected to one end of the rod.

[0008] More preferably, a handle is fixedly connected to the other end of the rod.

[0009] More preferably, a display screen is mounted on the front surface of the panel.

[0010] More preferably, a control button is mounted on the front surface of the panel, located on one side of the display screen, and an interface is mounted on the front surface of the panel, located on one side of the control button.

[0011] More preferably, a stainless steel spring sheet is fixedly connected to the rear surface of the guide plate, and a pressure block is fixedly connected to the rear surface of the stainless steel spring sheet.

[0012] The present invention has the following advantages due to the adoption of the above technical solution:

[0013] During use, this utility model provides multi-layered shielding against electromagnetic interference through a shielding cover, a wave-absorbing shell, and an electromagnetic shielding paint layer, thus avoiding the impact of electromagnetic interference on the signal. Furthermore, when disassembling and assembling the processing mechanism, only the position of the insert block needs to be adjusted, which can be done without the need for tools, making it convenient for staff to inspect and use.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a structural diagram of this utility model;

[0017] Figure 2 is a structural diagram of the processing mechanism of this utility model;

[0018] Figure 3 is a cross-sectional structural diagram of the shielding cover of this utility model;

[0019] Figure 4 is a structural diagram of the fixing block and the insert block of this utility model.

[0020] Reference numerals: 1. Shielding mechanism; 11. Shielding cover; 12. Absorbing shell; 13. Electromagnetic shielding coating; 14. First through slot; 15. Fixing block; 16. Through hole; 17. Rod body; 18. Insert block; 19. Handle; 2. Processing mechanism; 21. Panel; 22. Display screen; 23. Control button; 24. Interface; 25. Guide plate; 251. Second through slot; 26. Fixing plate; 27. Signal processing equipment body; 28. Stainless steel spring; 29. ​​Pressure block. Detailed Implementation

[0021] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] As shown in Figures 1-4, this utility model embodiment provides an anti-interference signal processing device for a TDLAS laser gas detector, including a shielding mechanism 1 and a processing mechanism 2. The processing mechanism 2 is installed inside the shielding mechanism 1. The shielding mechanism 1 includes a shielding cover 11, a wave-absorbing shell 12, and an electromagnetic shielding paint layer 13. The wave-absorbing shell 12 is fixedly connected to the outside of the shielding cover 11, and the electromagnetic shielding paint layer 13 is sprayed on the outside of the wave-absorbing shell 12.

[0024] The processing mechanism 2 includes a panel 21 and two guide plates 25. The two guide plates 25 are symmetrically fixedly connected to the rear surface of the panel 21. A fixing plate 26 is fixedly connected between the two guide plates 25. The top of the fixing plate 26 is fixedly connected to the signal processing device body 27.

[0025] In one embodiment, two first through slots 14 are symmetrically opened on the outer side wall of the shield 11, and a second through slot 251 is opened on one side of the guide plate 25. A fixing block 15 is fixedly connected to the inner side wall of the first through slot 14, and a through hole 16 is opened on one side of the fixing block 15. A rod 17 is slidably connected to the inner side wall of the through hole 16, and an insert block 18 is fixedly connected to one end of the rod 17. By setting the insert block 18, the position of the insert block 18 is adjusted by sliding the rod 17 in the through hole 16, and the insert block 18 is inserted into the second through slot 251 to fix the position of the guide plate 25.

[0026] In one embodiment, a handle 19 is fixedly connected to the other end of the rod 17; the handle 19 facilitates the control of the position of the rod 17.

[0027] In one embodiment, a display screen 22 is mounted on the front surface of the panel 21; the display screen 22 facilitates the display of information.

[0028] In one embodiment, a control button 23 is installed on the front surface of the panel 21 on one side of the display screen 22, and an interface 24 is installed on the front surface of the panel 21 on one side of the control button 23; the signal processing device body 27 is controlled by the control button 23, and the interface 24 facilitates connection with other devices.

[0029] In one embodiment, a stainless steel spring sheet 28 is fixedly connected to the rear surface of the guide plate 25, and a pressure block 29 is fixedly connected to the rear surface of the stainless steel spring sheet 28. With the setting of the stainless steel spring sheet 28, the guide plate 25 is inserted into the shield 11, the stainless steel spring sheet 28 is squeezed, and then the insertion block 18 is inserted into the second through slot 251. When the position of the guide plate 25 is fixed, the counter-pushing force of the stainless steel spring sheet 28 pushes the guide plate 25, thereby improving the stability of fixing the guide plate 25.

[0030] When this utility model is in operation: First, the guide plate 25 is inserted into the shielding cover 11, and the stainless steel spring sheet 28 is squeezed. Then, the rod 17 slides in the through hole 16, the position of the insert block 18 is adjusted, and the insert block 18 is inserted into the second through groove 251 to fix the position of the guide plate 25, so as to facilitate the installation and fixation of the processing mechanism 2. It is connected to the signal processing equipment body 27 through the interface 24, and then the signal is processed by the signal processing equipment body 27. The shielding cover 11, the wave-absorbing shell 12, and the electromagnetic shielding paint layer 13 shield the signal processing equipment body 27 inside the shielding cover 11 to avoid the influence of electromagnetic interference on the signal.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An anti-interference signal processing device for a TDLAS laser gas detector, characterized in that: The device includes a shielding mechanism (1) and a processing mechanism (2). The processing mechanism (2) is installed inside the shielding mechanism (1). The shielding mechanism (1) includes a shielding cover (11), an absorbing shell (12), and an electromagnetic shielding paint layer (13). The absorbing shell (12) is fixedly connected to the outside of the shielding cover (11), and the electromagnetic shielding paint layer (13) is sprayed on the outside of the absorbing shell (12). The processing mechanism (2) includes a panel (21) and two guide plates (25). The two guide plates (25) are symmetrically fixedly connected to the rear surface of the panel (21). A fixing plate (26) is fixedly connected between the two guide plates (25). A signal processing device body (27) is fixedly connected to the top of the fixing plate (26).

2. The anti-interference signal processing device for a TDLAS laser gas detector according to claim 1, characterized in that: The outer side wall of the shield (11) is symmetrically provided with two first through slots (14), and a second through slot (251) is provided on one side of the guide plate (25). A fixing block (15) is fixedly connected to the inner side wall of the first through slot (14), and a through hole (16) is provided on one side of the fixing block (15). A rod (17) is slidably connected to the inner side wall of the through hole (16), and an insert (18) is fixedly connected to one end of the rod (17).

3. The anti-interference signal processing device for a TDLAS laser gas detector according to claim 2, characterized in that: A handle (19) is fixedly connected to the other end of the rod (17).

4. The anti-interference signal processing device for a TDLAS laser gas detector according to claim 1, characterized in that: A display screen (22) is mounted on the front surface of the panel (21).

5. The anti-interference signal processing device for a TDLAS laser gas detector according to claim 4, characterized in that: A control button (23) is mounted on the front surface of the panel (21) on one side of the display screen (22), and an interface (24) is mounted on the front surface of the panel (21) on one side of the control button (23).

6. The anti-interference signal processing device for a TDLAS laser gas detector according to claim 1, characterized in that: A stainless steel spring sheet (28) is fixedly connected to the rear surface of the guide plate (25), and a pressure block (29) is fixedly connected to the rear surface of the stainless steel spring sheet (28).

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