CN217981245U

CN217981245U - Terahertz spectrometer with replaceable modules

Info

Publication number: CN217981245U
Application number: CN202220688752.1U
Authority: CN
Inventors: 刘金鸽; 杨旻蔚; 刘锋; 王丹; 施杰; 吴玫晓
Original assignee: Tera Aurora Electro Optics Technology Co ltd
Current assignee: Tera Aurora Electro Optics Technology Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-12-06
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a terahertz spectrometer of replaceable module, include: the device comprises a shell, a cover plate, an inner shell module and a detection module; the module sets up in the casing in, the module includes the laser instrument in the casing, delay line and circuit board, the laser instrument has pumping light output and probing light output, probing light output is connected through optic fibre with the delay line, the apron lid is located on the casing, be provided with the mounting bracket on the apron, the relative both ends of mounting bracket are provided with terahertz and transmit the photoconductive antenna and receive the photoconductive antenna with terahertz respectively, the pumping light output passes through fiber connection with terahertz and transmits the photoconductive antenna with terahertz, the delay line passes through fiber connection with receiving the photoconductive antenna with terahertz, the circuit board receives photoconductive antenna electric connection with terahertz, detection module can dismantle the setting with the mounting bracket. This terahertz spectrometer of replaceable module, detection module and mounting bracket can dismantle the setting, can realize the dismantlement replacement of detection module, and easy operation is convenient.

Description

Terahertz spectrometer with replaceable modules

Technical Field

The utility model relates to a terahertz detection equipment technical field now, concretely relates to can replace terahertz spectrometer of module now.

Background

The current terahertz detection system has a wide application range and various measurement modes, and comprises a transmission-type terahertz detection system and a reflection-type terahertz detection system. The manufacturing technology of devices of the domestic terahertz detection system is not perfect, so that the terahertz detection system is expensive in manufacturing cost, and serious resource waste is caused by the traditional one-machine-one-use mode. The existing single-module multifunctional terahertz detection system in the market can be used for multiple purposes, but the test system is complex in structure and difficult to operate, and different functions are used, so that a user is required to manually adjust an internal device to change a system light path, the stability of the terahertz detection system is reduced in the manual adjustment process, and the working efficiency of the terahertz detection system is greatly influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems existing in the prior art, the terahertz spectrometer with replaceable modules is provided.

The specific technical scheme is as follows:

a terahertz spectrometer with replaceable modules mainly comprises: the device comprises a shell, a cover plate, an inner shell module and a detection module;

the utility model discloses a terahertz transmission module, including casing, module in the casing, laser instrument, delay line and circuit board, the module set up in the casing, the module includes laser instrument, delay line and circuit board in the casing, the laser instrument has pumping light output and detection light output, the detection light output with the delay line is connected through optic fibre, the apron lid is located on the casing, be provided with the mounting bracket on the apron, the relative both ends of mounting bracket are provided with terahertz transmission photoconduction antenna and terahertz reception photoconduction antenna respectively, the pumping light output with terahertz transmission photoconduction antenna passes through optic fibre and connects, the delay line with terahertz reception photoconduction antenna passes through optic fibre and connects, the circuit board with terahertz reception photoconduction antenna electric connection now, the detection module with the setting can be dismantled to the mounting bracket.

The terahertz spectrometer with the replaceable module is further characterized in that the mounting frame comprises a first plate, a second plate and a third plate, the first plate is opposite to the third plate, two ends of the second plate are respectively connected with the first plate and the third plate, the first plate, the second plate and the third plate form a groove structure with an open side edge, the opposite sides of the first plate and the third plate are respectively provided with a first clamping portion, the detection module comprises a mounting plate, the two opposite sides of the mounting plate are respectively provided with a second clamping portion, and the second clamping portions can be clamped with the first clamping portions to detachably mount the detection module on the mounting frame.

In the terahertz spectrometer with replaceable module as described above, the first engaging portion is an engaging groove, and the second engaging portion is an engaging protrusion.

In the terahertz spectrometer with replaceable modules, the first engaging portion is an engaging protrusion, and the second engaging portion is an engaging groove.

The terahertz spectrometer with the replaceable module is further characterized in that the detection module further comprises four side walls arranged on the mounting plate, the four side walls enclose to form a square groove structure, two opposite side walls are a first side wall and a third side wall respectively, the first side wall corresponds to the first plate, the third side wall corresponds to the third plate, the terahertz transmitting photoconductive antenna is arranged on the first plate, a terahertz input port is arranged on the first side wall, the terahertz input port is opposite to the terahertz transmitting photoconductive antenna, the terahertz receiving photoconductive antenna is arranged on the third plate, a terahertz receiving port is arranged on the third side wall, and the terahertz receiving port is opposite to the terahertz receiving photoconductive antenna.

The positive effects of the technical scheme are as follows:

the utility model provides a pair of terahertz spectrometer of replaceable module surveys the module and can dismantle the setting with the mounting bracket, can realize surveying the dismantlement replacement of module, and easy operation is convenient.

Drawings

Fig. 1 is a schematic view of an assembly structure of a terahertz spectrometer with replaceable modules according to the present invention;

fig. 2 is an explosion structure diagram of a terahertz spectrometer with replaceable modules provided by the present invention;

FIG. 3 is a schematic diagram of an alternative direction explosion of the terahertz spectrometer of the replaceable module of FIG. 2;

fig. 4 is a schematic view of a first directional structure of the housing and the module in the housing according to the present invention;

fig. 5 is a schematic diagram of a second direction structure of the housing and the inner module of the housing according to the present invention.

In the drawings: 1. a housing; 2. a cover plate; 3. a detection module; 31. mounting a plate; 311. clamping the convex block; 321. a first side wall; 3211. a terahertz input port; 323. a third side wall; 3231. a terahertz receiving port; 33. a first parabolic mirror; 34. a second parabolic mirror; 35. a first reflector; 36. a second reflector; 37. a third parabolic mirror; 38. a fourth parabolic mirror; 39. a sample stage; 4. a laser; 41. a pump light output; 42. a detection light output end; 5. a delay line; 6. a circuit board; 7. a mounting frame; 71. a first plate; 72. a second plate; 73. a third plate; 74. a clamping groove; 8. a terahertz emission photoconductive antenna; 9. the terahertz receives the photoconductive antenna; 10. an optical fiber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 5, the utility model discloses a terahertz spectrometer with replaceable modules, which comprises: the device comprises a shell 1, a cover plate 2, an inner shell module and a detection module 3;

the in-housing module is arranged in the housing 1, and comprises a laser 4, a delay line 5 and a circuit board 6, wherein the laser 4 is provided with a pumping light output end 41 and a detection light output end 42, and the detection light output end 42 is connected with the delay line 5 through an optical fiber 10;

the cover plate 2 covers the shell 1, the mounting frame 7 is arranged on the cover plate 2, the terahertz transmitting photoconductive antenna 8 and the terahertz receiving photoconductive antenna 9 are arranged at two opposite ends of the mounting frame 7 respectively, the pumping light output end 41 and the terahertz transmitting photoconductive antenna 8 are connected through the optical fiber 10, the delay line 5 and the terahertz receiving photoconductive antenna 9 are connected through the optical fiber 10, the circuit board 6 is electrically connected with the terahertz receiving photoconductive antenna 9, and the detection module 3 and the mounting frame 7 are detachably arranged.

Optionally, the housing 1 has a receiving groove, and the laser 4, the delay line 5 and the circuit board 6 of the module in the housing are disposed in the receiving groove.

Optionally, the mounting bracket 7 includes a first plate 71, a second plate 72 and a third plate 73, the first plate 71 is opposite to the third plate 73, two ends of the second plate 72 are respectively connected to the first plate 71 and the third plate 73, the first plate 71, the second plate 72 and the third plate 73 enclose a slot structure with an open side on the cover plate 2, optionally, the first plate 71 is parallel to the third plate 73, and the cross-sectional shape of the slot structure is "pi". As shown in fig. 3, the first plate 71, the second plate 72 and the third plate 73 are all arranged vertically, one side of the channel structure is open, and the upper side of the channel structure is also open.

The opposite sides of the first plate 71 and the third plate 73 are respectively provided with a first clamping portion, the detection module 3 comprises a mounting plate 31, the opposite sides of the mounting plate 31 are provided with a second clamping portion, and the second clamping portions can be clamped with the first clamping portions so as to detachably mount the detection module 3 on the mounting frame 7.

Alternatively, as shown in fig. 3, in one embodiment, the first engaging portion is an engaging groove 74 and the second engaging portion is an engaging protrusion 311.

Alternatively, in another embodiment, the first engaging portion is an engaging protrusion (not shown, refer to fig. 3), and the second engaging portion is an engaging groove (not shown, refer to fig. 3).

Wherein, the block groove 74 is the structure of horizontal extension with block lug 311, and detection module 3 transversely inserts the inslot structure of mounting bracket 7, realizes dismantling of detection module 3 and mounting bracket 7 to be connected, when detection module 3 is bad to fall or need to change the detection module 3 that the function is different, will detect module 3 and transversely take out, and it can to install a new detection module 3 again.

The detection module 3 further includes four sidewalls disposed on the mounting plate 31, the four sidewalls enclose to form a square groove structure, two opposing sidewalls are a first sidewall 321 and a third sidewall 323, the first sidewall 321 corresponds to the first plate 71, the third sidewall 323 corresponds to the third plate 73, the terahertz transmitting photoconductive antenna 8 is disposed on the first plate 71, the first sidewall 321 is provided with a terahertz input port 3211, the terahertz input port 3211 is disposed opposite to the terahertz transmitting photoconductive antenna 8, the terahertz receiving photoconductive antenna 9 is disposed on the third plate 73, the third sidewall 323 is provided with a terahertz receiving port 3231, and the terahertz receiving port 3231 is disposed opposite to the terahertz receiving photoconductive antenna 9.

Wherein, the inside detection structure that forms through a plurality of components and parts that is provided with of detection module 3's square groove structure, it can be reflection-type, projection type or ATR type to survey the structure, because it is not the key point of this application to survey the structure, does not carefully explain here each type of surveying the structure, only explains as an example with the detection structure in the picture: as shown in fig. 3, in this embodiment, the detection structure includes a first parabolic mirror 33, a second parabolic mirror 34, a first reflecting mirror 35, a second reflecting mirror 36, a third parabolic mirror 37, a fourth parabolic mirror 38, and a sample stage 39, the first parabolic mirror 33, the second parabolic mirror 34, the first reflecting mirror 35, the second reflecting mirror 36, the third parabolic mirror 37, the fourth parabolic mirror 38, and the sample stage 39 are all mounted on the mounting board 31, wherein the first parabolic mirror 33 is opposite to the terahertz input port 3211 and opposite to the first reflecting mirror 35, the third parabolic mirror 37 is opposite to the first reflecting mirror 35, the fourth parabolic mirror 38 is opposite to the third parabolic mirror 37 and opposite to the second reflecting mirror 36, the second reflecting mirror 36 is also opposite to the second parabolic mirror 34, the height of the fourth parabolic mirror 38 is higher than that of the third parabolic mirror 37, the height is the distance from the component to the mounting board 31, in this embodiment, the mounting board 31 is vertically disposed, the height is the distance from the mounting board 31, the first parabolic mirror 33, the second parabolic mirror 35, and the third parabolic mirror 38 are disposed at the same height as the second parabolic mirror 34. The sample stage 39 is disposed on the mounting plate 31, and the height of the sample area of the sample stage 39 is located between the third parabolic mirror 37 and the fourth parabolic mirror 38.

The utility model provides a terahertz spectrometer of replaceable module, detection module 3 can dismantle the setting with mounting bracket 7, can realize detection module 3's dismantlement replacement, and easy operation is convenient.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A replaceable-module terahertz spectrometer, comprising: the device comprises a shell, a cover plate, an inner shell module and a detection module;

2. The terahertz spectrometer with replaceable modules as claimed in claim 1, wherein the mounting bracket comprises a first plate, a second plate and a third plate, the first plate is opposite to the third plate, two ends of the second plate are respectively connected with the first plate and the third plate, the first plate, the second plate and the third plate form a groove structure with an open side on the cover plate, one side of the first plate, which is opposite to the third plate, is provided with a first clamping portion, the detection module comprises a mounting plate, two opposite sides of the mounting plate are provided with second clamping portions, and the second clamping portions can be clamped with the first clamping portions to detachably mount the detection module on the mounting bracket.

3. The terahertz spectrometer of claim 2, wherein the first engaging portion is an engaging groove and the second engaging portion is an engaging projection.

4. The terahertz spectrometer of the replaceable module of claim 2, wherein the first engaging portion is an engaging projection and the second engaging portion is an engaging groove.

5. The terahertz spectrometer with replaceable modules according to any one of claims 2 to 4, wherein the detection module further comprises four sidewalls disposed on the mounting plate, the four sidewalls enclosing a square groove structure, wherein two opposite sidewalls are a first sidewall and a third sidewall, respectively, the first sidewall corresponds to the first plate, the third sidewall corresponds to the third plate, the terahertz transmitting photoconductive antenna is disposed on the first plate, the first sidewall is provided with a terahertz input port, the terahertz input port is opposite to the terahertz transmitting photoconductive antenna, the terahertz receiving photoconductive antenna is disposed on the third plate, the third sidewall is provided with a terahertz receiving port, and the terahertz receiving port is opposite to the terahertz receiving photoconductive antenna.