Terahertz gas detection system

Abstract

The invention discloses a terahertz gas detection system, and belongs to the technical field of gas detection, the terahertz gas detection system comprises a base, a motion assembly is arranged on the base, a detection assembly is arranged on the motion assembly, the motion assembly and the detection assembly are both connected with a control module, and a waste gas treatment device is arranged on one side of the detection assembly. An inert gas storage device is arranged on one side of the waste gas treatment device, and a to-be-detected gas storage device is arranged on one side of the inert gas storage device. According to the terahertz gas detection system disclosed by the invention, the terahertz wave emitter and the terahertz wave receiver are arranged at the top and the bottom of the detection bin, so that the loss of terahertz waves can be reduced, the detection and discharge of detected gas can be automatically managed, the operation process is simplified, the detection efficiency is improved, the terahertz waves can directly interact with the detected gas, and the detection efficiency is improved. The heating device is arranged, so that the upper and lower dissolved gas concentrations of the gas can be kept uniform, the internal nonuniformity of the gas is eliminated, and the reliability of the detection result is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to a terahertz gas detection system. Background Art

[0002] Terahertz nondestructive evaluation is a technology that uses electromagnetic radiation equipment in the terahertz band for detection, analysis, and evaluation without performing destructive tests or causing any damage to materials, components, or systems. The electromagnetic radiation in the terahertz band is located between infrared light and microwaves and has special physical properties. Terahertz radiation can penetrate most non-metallic materials, such as plastics, papers, and insulators, and is also sensitive to the absorption and reflection of many substances. This makes terahertz radiation a very useful tool for non-destructively detecting and evaluating materials.

[0003] Currently, the detection of gas samples usually uses methods such as mass spectrometry or chemiluminescence. However, mass spectrometry may take some time to complete the analysis, so there may be certain limitations in applications that require real-time monitoring. Some other gas detection methods may have faster response times and are not suitable for continuous monitoring: Due to its long analysis time and possible sample pretreatment steps, mass spectrometry may not be suitable for scenarios that require continuous and real-time monitoring. In contrast, the specificity of chemiluminescence usually depends on the specific reaction between the fluorescent reagent and the target gas. In some complex gas mixtures, there may be other interfering substances, which affect the accuracy of the detection results. Different gases may have different reactivity to the fluorescent reagent, so the sensitivity may vary between different gases. Some gases may be insensitive to specific fluorescent reagents, reducing the reliability of the detection. Chemiluminescence is sensitive to environmental conditions, such as changes in temperature and humidity, which may affect the performance of the fluorescent reagent and thus the accuracy of the detection results.

[0004] The introduction of terahertz nondestructive detection technology provides a more advanced and reliable means for the detection of liquid samples without damaging the integrity of the samples, thus making the characteristic evaluation of liquid samples more accurate and efficient. Terahertz detection technology represents a brand-new method that uses electromagnetic radiation in the terahertz band to detect substances. The band range of terahertz waves is very wide, and it can be used for the characteristic detection of substances such as semiconductors, plasmas, organisms, and biological macromolecules. The energy of terahertz waves is small, so it will not cause any damage to substances, which enables it to more effectively capture the inherent characteristics of the samples to be measured.

[0005] Introducing terahertz detection technology into the detection of liquid samples can overcome the limitations of traditional methods. Terahertz waves can penetrate gas samples to obtain their internal information without causing structural damage to the samples. Through terahertz detection technology, the characteristics of liquid samples can be captured more accurately, and more detailed analysis results can be obtained. Therefore, terahertz detection technology has revolutionary application potential in the field of gas sample analysis, providing a new option for the detection and analysis of liquid samples.

[0006] There are various application methods for terahertz detection. Among them, transmission detection is one of the commonly used terahertz detection technologies. The transmission detection method allows terahertz radiation energy to pass through the sample to be measured, and then collects and analyzes this radiation to obtain the inherent characteristics of the sample. The patent with the Chinese invention publication number CN201510185887 discloses a terahertz wave focusing device, which can assist in detecting trace liquids in a specified single microchannel in a microfluidic chip.

[0007] However, during the process of terahertz detection, there are some problems. First of all, gas samples usually need to be stored in containers, and the structure and material of the containers may interfere with the detection results. Secondly, due to the large loss of terahertz waves in the air, in order to reduce this loss, it is necessary to be as close as possible to the gas to be detected. In the prior art, the operation of fixing the gas to be detected is cumbersome, resulting in low detection efficiency. In addition, if the gas to be detected is in the residual detection chamber, it may interfere with the subsequent detection results, thereby reducing the detection accuracy. Moreover, the temperature change near the detection device may also interfere with the detection results, further reducing the detection accuracy.

[0008] Therefore, currently, it is necessary to solve multiple problems in gas sample detection, including reducing the interference of the container on the detection results, improving the contact between terahertz waves and the gas to be detected to reduce losses, and improving the fixing and cleaning processes of gas samples to improve the efficiency and accuracy of terahertz detection. Summary of the Invention

[0009] The purpose of the present invention is to provide a terahertz gas detection system. Terahertz wave transmitters and terahertz wave receivers are arranged at the top and bottom of the detection chamber, which can reduce the loss of terahertz waves, automatically manage the detection and discharge of the gas to be detected, simplify the operation process, and improve the detection efficiency. Terahertz waves can directly interact with the gas to be detected, improving the accuracy and repeatability of the detection results. A heating device is set to keep the dissolved gas concentration uniform up and down in the gas, eliminate the inhomogeneity inside the gas, and ensure the reliability of the detection results.

[0010] To achieve the above object, the present invention provides a terahertz gas detection system, including a base, on which a motion component is provided, on which a detection component is provided. Both the motion component and the detection component are connected to a control module. On one side of the detection component, an exhaust gas treatment device is provided. On one side of the exhaust gas treatment device, an inert gas storage device is provided. On one side of the inert gas storage device, a gas to be detected storage device is provided.

[0011] Preferably, the detection component includes a detection chamber. On the top of the detection chamber, there is a terahertz wave emitter notch, in which a terahertz wave emitter is provided. On the bottom of the detection chamber, there is a terahertz wave receiver notch, in which a terahertz wave receiver is provided. On the side of the detection chamber, there is an air outlet notch, in which a micro air pump is provided. Below the air outlet notch, there is an air inlet notch, in which a gas one-way valve is provided.

[0012] Preferably, on both sides of the terahertz wave emitter notch, a first electric push rod and a second electric push rod are provided, and a heating device is provided outside the first electric push rod and the second electric push rod.

[0013] Preferably, the motion component includes a first sliding bracket and a second sliding bracket, which are located on the base. On the first sliding bracket and the second sliding bracket, there is a sliding support. On one side of the sliding support, there is a rack, which meshes with a spur gear. The spur gear is connected to a servo motor, and the servo motor is connected to a slider mechanism. The detection component is provided on the slider mechanism. The tops of the first electric push rod and the second electric push rod are both connected to the slider mechanism.

[0014] Preferably, a rolling support is arranged in parallel on one side of the sliding support. Both the sliding support and the rolling support are square. The rolling support is located on the base, and rolling support wheels are provided on the rolling support, which are connected to the slider mechanism.

[0015] Preferably, the control module includes a main controller, which is connected to a sub-controller.

[0016] Preferably, transmission pipes are provided on the exhaust gas treatment device, the inert gas storage device, and the gas to be detected storage device.

[0017] Therefore, the present invention adopts the above-mentioned terahertz gas detection system. By setting a terahertz wave transmitter and a terahertz wave receiver at the top and bottom of the detection chamber, the loss of terahertz waves can be reduced, the detection and discharge of the gas to be detected can be automatically managed, the operation process can be simplified, and the detection efficiency can be improved. The terahertz waves can directly interact with the gas to be detected, improving the accuracy and repeatability of the detection results. By setting a heating device, the upper and lower dissolved gas concentrations of the gas can be kept uniform, the inhomogeneity inside the gas can be eliminated, and the reliability of the detection results can be ensured.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of a terahertz gas detection system of the present invention;

[0020] Figure 2 is a rear three-dimensional structural schematic diagram of a moving component of an embodiment of a terahertz gas detection system of the present invention;

[0021] Figure 3 is a front three-dimensional structural schematic diagram of a moving component of an embodiment of a terahertz gas detection system of the present invention;

[0022] Figure 4 is a front view of a moving component of an embodiment of a terahertz gas detection system of the present invention;

[0023] Figure 5 is a partial enlarged view of an embodiment A of a terahertz gas detection system of the present invention;

[0024] Figure 6 is a front three-dimensional structural schematic diagram of a detection chamber of an embodiment of a terahertz gas detection system of the present invention;

[0025] Figure 7 is a bottom three-dimensional structural schematic diagram of a detection chamber of an embodiment of a terahertz gas detection system of the present invention;

[0026] Figure 8 is a flow schematic diagram of Embodiment 1 of a terahertz gas detection system of the present invention;

[0027] Figure 9 is a flow schematic diagram of Embodiment 2 of a terahertz gas detection system of the present invention.

[0028] REFERENCE SIGNS

[0029] 1001, Exhaust gas treatment device; 1002, Inert gas storage device; 1003, Gas to be detected storage device; 1004, Transfer pipe; 1005, Straight gear; 1006, Rack; 1007, Servo motor; 1008, Slide mechanism; 1009, Rolling support; 1010, Rolling support wheel; 1011, Sliding support; 10121, First sliding support; 10122, Second sliding support; 2001, Base; 2002, Detection chamber; 2003, Gas one-way valve; 2004, Micro suction pump; 2005, Terahertz wave emitter; 20051, Terahertz wave receiver; 20061, First electric push rod; 20062, Second electric push rod; 2007, Air inlet notch; 2008, Air outlet notch; 2009, Terahertz wave emitter notch; 2010, Heating device; 2011, Terahertz wave receiver notch; 301, Main controller; 302, Sub - controller. Detailed implementation manners

[0030] The technical solution of the present invention will be further described below with reference to the drawings and embodiments.

[0031] Unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs.

[0032] As shown in the figure, the present invention provides a terahertz gas detection system, including a base 2001. A motion component is provided on the base 2001, and a detection component is provided on the motion component. The base 2001 provides support for the motion component and the detection component. Both the motion component and the detection component are connected to a control module, and the control module controls the operation of the motion component and the detection component. The control module includes a main controller 301. The main controller 301 is connected to a sub - controller 302. The main controller 301 can control the sub - controller 302. Both the main controller 301 and the sub - controller 302 are selected from the existing microprocessors of model STM32F103RCT6, and the required programs have been pre - loaded.

[0033] On one side of the detection component, there is an exhaust gas treatment device 1001. The exhaust gas treatment device 1001 can treat the gas to be detected to prevent the gas to be detected from interfering with the subsequent detection results and affecting the detection accuracy. On one side of the exhaust gas treatment device 1001, there is an inert gas storage device 1002. The inert gas storage device 1002 stores inert gas, which can maintain a constant pressure state in the detection chamber 2002 for a long time and will not damage the detection device. On one side of the inert gas storage device 1002, there is a gas to be detected storage device 1003. The gas to be detected storage device 1003 can store the gas to be detected. Transfer pipes 1004 are provided on the exhaust gas treatment device 1001, the inert gas storage device 1002, and the gas to be detected storage device 1003, which facilitate the transfer of gas.

[0034] The motion assembly includes a first sliding bracket 10121 and a second sliding bracket 10122. The first sliding bracket 10121 and the second sliding bracket 10122 are located on the base 2001, and the base 2001 provides support for the first sliding bracket 10121 and the second sliding bracket 10122. A sliding support 1011 is provided on the first sliding bracket 10121 and the second sliding bracket 10122. A rack 1006 is fixedly provided on one side of the sliding support 1011. The rack 1006 meshes with a spur gear 1005, and the spur gear 1005 is connected to a servo motor 1007. The servo motor 1007 is connected to a slider mechanism 1008. The sliding support 1011 provides support for the rack 1006 and the slider mechanism 1008. The slider mechanism 1008 provides support for the servo motor 1007, and the servo motor 1007 provides power for the slider mechanism 1008. When the servo motor 1007 is started, the servo motor 1007 drives the spur gear 1005 to rotate, and the spur gear 1005 drives the slider mechanism 1008 to slide along the sliding support 1011 by meshing with the rack 1006.

[0035] A rolling support 1009 is arranged in parallel on one side of the sliding support 1011. Both the sliding support 1011 and the rolling support 1009 are square. The rolling support 1009 is located on the base 2001, and the base 2001 provides support for the rolling support 1009. A rolling support wheel 1010 is provided on the rolling support 1009. The rolling support 1009 provides support for the rolling support wheel 1010, facilitating the connection of the rolling support wheel 1010 with the transmission pipe 1004 on the waste gas treatment device 1001, the inert gas storage device 1002, and the gas to be detected storage device 1003. The rolling support wheel 1010 is connected to the slider mechanism 1008, and the slider mechanism 1008 can drive the rolling support wheel 1010 to move.

[0036] A detection assembly is provided on the slider mechanism 1008. The slider mechanism 1008 can drive the detection assembly to move, facilitating the connection of the detection assembly with the waste gas treatment device 1001, the inert gas storage device 1002, and the gas to be detected storage device 1003, so as to detect the gas to be detected and process the detected gas. The detection assembly includes a detection chamber 2002, and the detection chamber 2002 provides space for detecting the gas. A terahertz wave emitter notch 2009 is provided at the top of the detection chamber 2002. A terahertz wave emitter 2005 is provided in the terahertz wave emitter notch 2009. The terahertz wave emitter notch 2009 provides space for the installation of the terahertz wave emitter 2005, and the terahertz wave emitter 2005 can emit terahertz waves.

[0037] At the bottom of the detection chamber 2002, there is a terahertz wave receiver notch 20112011. Inside the terahertz wave receiver notch 20112011, there is a terahertz wave receiver 20051. The terahertz wave receiver notch 20112011 provides space for the installation of the terahertz wave receiver 20051. The terahertz wave receiver 20051 can receive the terahertz waves emitted by the terahertz wave emitter 2005. On the side of the detection chamber 2002, there is an air outlet notch 2008. Inside the air outlet notch 2008, there is a micro air suction pump 2004. The air outlet notch 2008 provides a position for the installation of the micro air suction pump 2004. The micro air suction pump 2004 can pump out the air inside the detection chamber 2002. Below the air outlet notch 2008, there is an air inlet notch 2007. Inside the air inlet notch 2007, there is a gas check valve 2003. The air inlet notch 2007 provides a position for the installation of the gas check valve 2003. The gas check valve 2003 can ensure that there is no gas backflow when gas is filled into the detection chamber 2002.

[0038] On both sides of the terahertz wave emitter notch 2009, there are a first electric push rod 20061 and a second electric push rod 20062. The tops of the first electric push rod 20061 and the second electric push rod 20062 are both connected to the slider mechanism 1008. The first electric push rod 20061 and the second electric push rod 20062 can push the top cover of the detection chamber 2002 to move. Outside the first electric push rod 20061 and the second electric push rod 20062, there is a heating device 2010. The heating device 2010 can adjust and maintain the temperature inside the detection chamber 2002.

[0039] Embodiment 1

[0040] When the main controller 301 is connected to the first electric push rod 20061, the second electric push rod 20062, the servo motor 1007, the micro air suction pump 2004, and the heating device 2010, and the sub - controller 302 is connected to the terahertz wave emitter 2005 and the terahertz wave receiver 20051, the microprocessor of the sub - controller 302 is set as the slave computer of the microprocessor of the main controller 301, so that the sub - controller 302 is under the control of the main controller 301. The sub - controller 302 controls the opening or closing of the terahertz wave emitter 2005 and the terahertz wave receiver 20051 by sending detection instructions to the terahertz wave emitter 2005 and the terahertz wave receiver 20051. The main controller 301 controls the working states of the first electric push rod 20061, the second electric push rod 20062, the servo motor 1007, the micro air suction pump 2004, and the heating device 2010 by sending instructions to them.

[0041] Before detecting the gas to be detected, the main controller 301 sends a working instruction to the servo motor 1007. The rotating shaft of the servo motor 1007 drives the spur gear 1005 fixed on the rotating shaft to rotate. The spur gear 1005 meshes with the rack 1006 fixed on the sliding support 1011, thereby driving the slider mechanism 1008 to move. At this time, the rolling support wheel 1010 fixed at the bottom of the slider mechanism 1008 also rolls on the rolling support 1009 to provide support for the slider mechanism 1008.

[0042] When the slider mechanism 1008 moves in front of the waste gas treatment device 1001, the transmission pipe 1004 connected to the waste gas treatment device 1001 is connected to the micro air pump 2004 on the surface of the detection chamber 2002. The main controller 301 sends a working instruction to the micro air pump 2004 to pump out the air in the detection chamber 2002 to ensure that the detection chamber 2002 maintains a vacuum state. Subsequently, the main controller 301 sends an instruction to the servo motor 1007 to move the slider mechanism 1008 in front of the gas storage device 1003 to be detected. The gas enters the detection chamber 2002 from the gas storage device 1003 to be detected through the gas one-way valve 2003.

[0043] Subsequently, the main controller 301 sends a working instruction to the heating device 2010 to control and maintain the temperature in the detection chamber 2002, so that the temperature in the detection chamber 2002 is maintained within a temperature range that will not cause the gas to be detected to react and the temperature is increased as much as possible, making the gas molecules active, which is conducive to fully mixing the gas and ensuring more accurate detection results. If the volume of the gas to be detected is smaller than the volume of the detection chamber 2002, it will cause the pressure in the detection chamber 2002 to decrease, which is likely to cause the gas to react. At this time, the main controller sends working instructions to the first electric push rod 20061 and the second electric push rod 20062 to push out the top cover on the upper surface of the detection chamber 2002, so that the gas completely fills the detection chamber 2002 and keeps the pressure in the detection chamber 2002 the same as the external pressure.

[0044] After all preparations are completed, the sub - controller 302 sends working instructions to the terahertz wave transmitter 2005 and the terahertz wave receiver 20051 to control the turning on or off of the terahertz wave transmitter 2005 and the terahertz wave receiver 20051. After the terahertz wave receiver 20051 receives the required detection results, the main controller 301 sends working instructions to the first electric push rod 20061, the second electric push rod 20062, the micro - suction pump 2004, the heating device 2010, and the servo motor 1007, causing the first electric push rod 20061 and the second electric push rod 20062 to contract to the initial state. At the same time, the heating device 2010 stops working, and the servo motor 1007 works to move the slider mechanism 1008 in front of the waste gas treatment device 1001. The micro - suction pump 2004 pumps the gas to be detected in the detection chamber 2002 into the waste gas treatment device 1001 through the transmission pipe 1004, avoiding the remaining of the gas to be detected in the detection chamber 2002, which may interfere with the subsequent detection results and affect the detection accuracy.

[0045] Subsequently, the servo motor 1007 works to move the slider mechanism 1008 in front of the inert gas storage device 1002, and the inert gas enters the detection chamber 2002 through the gas one - way valve 2003, which is beneficial to maintaining a constant pressure and constant temperature state in the detection chamber 2002 for a long time and will not damage the detection device. Sealing rings are set at the terahertz wave receiver notch 20112011, the terahertz wave receiver notch 20112011, the air outlet notch 2008, and the air inlet notch 2007 of the detection chamber 2002, which is beneficial to improving the sealing effect and preventing the infiltration of air, resulting in deviation of the detection results and leakage of toxic gases.

[0046] Embodiment 2

[0047] When the main controller 301 is connected to the servo motor 1007 and the heating device 2010, and the sub - controller 302 is connected to the terahertz wave transmitter 2005 and the terahertz wave receiver 20051, the micro - processor of the sub - controller 302 is set as the slave computer of the micro - processor of the main controller 301, so that the sub - controller 302 is under the control of the main controller 301. The sub - controller 302 controls the turning on or off of the terahertz wave transmitter 2005 and the terahertz wave receiver 20051 by sending detection instructions to them. The main controller 301 controls the working states of the servo motor 1007 and the heating device 2010 by sending instructions to them.

[0048] Before detecting the gas to be detected, the main controller 301 sends a working instruction to the servo motor 1007. The rotating shaft of the servo motor 1007 drives the spur gear 1005 fixed on the rotating shaft to rotate. The spur gear 1005 meshes with the rack 1006 fixed on the sliding support 1011, thereby driving the movement of the slider mechanism 1008. At this time, the rolling support wheel 1010 fixed at the bottom of the slider mechanism 1008 also rolls on the rolling support 1009 to provide support for the slider mechanism 1008.

[0049] When the slider mechanism 1008 moves in front of the waste gas treatment device 1001, the transmission pipe 1004 connected to the waste gas treatment device 1001 is connected to the second gas one-way valve 2003 on the surface of the detection chamber 2002. The main controller 301 sends a working instruction to the heating device 2010 to increase the temperature in the detection chamber 2002, ensuring that the pressure in the detection chamber 2002 is greater than the external pressure, so that the gas in the detection chamber 2002 is pushed into the waste gas treatment device 1001 through the pressure difference. Subsequently, the main controller 301 sends an instruction to the servo motor 1007, causing the slider mechanism 1008 to move in front of the gas storage device 1003 to be detected. The gas enters the detection chamber 2002 from the gas storage device 1003 to be detected through the gas one-way valve 2003.

[0050] After all preparations are completed, the sub-controller 302 sends working instructions to the terahertz wave transmitter 2005 and the terahertz wave receiver 20051 to control the on or off of the terahertz wave transmitter 2005 and the terahertz wave receiver 20051. After the terahertz wave receiver 20051 receives the result to be detected, the main controller 301 sends working instructions to the heating device 2010 and the servo motor 1007, causing the servo motor 1007 to work to move the slider mechanism 1008 in front of the waste gas treatment device 1001. The heating device 2010 increases the temperature in the detection chamber 2002, ensuring that the pressure in the detection chamber 2002 is greater than the external pressure, so that the gas in the detection chamber 2002 is pushed into the waste gas treatment device 1001 through the pressure difference, avoiding the residual of the detected gas in the detection chamber 2002 and interfering with the subsequent detection results and affecting the detection accuracy.

[0051] Subsequently, the servo motor 1007 works to move the slider mechanism 1008 in front of the inert gas storage device 1002. The inert gas enters the detection chamber 2002 through the gas one-way valve 2003, which is beneficial to maintaining a constant pressure and constant temperature state in the detection chamber 2002 for a long time and will not damage the detection device. Sealing rings are provided at the terahertz wave receiver notch 20112011, terahertz wave receiver notch 20112011, air outlet notch 2008, and air inlet notch 2007 of the detection chamber 2002, which is beneficial to improving the sealing effect and preventing air infiltration from causing deviation of the detection results and leakage of toxic gases.

[0052] Therefore, the present invention adopts the above-mentioned terahertz gas detection system. By arranging a terahertz wave emitter and a terahertz wave receiver at the top and bottom of the detection chamber, the loss of terahertz waves can be reduced, the detection and discharge of the gas to be detected can be automatically managed, the operation process can be simplified, and the detection efficiency can be improved. The terahertz waves can directly interact with the gas to be detected, improving the accuracy and repeatability of the detection results. By setting up a heating device, the gas solubility concentration can be kept uniform up and down, the inhomogeneity inside the gas can be eliminated, and the reliability of the detection results can be ensured.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements do not enable the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A terahertz gas detection system, characterized in that: It includes a base, on which a motion component is provided, on which a detection component is provided. Both the motion component and the detection component are connected to a control module. On one side of the detection component, there is an exhaust gas treatment device. On one side of the exhaust gas treatment device, there is an inert gas storage device. On one side of the inert gas storage device, there is a gas to be detected storage device.

2. The gas detection system for terahertz according to claim 1, characterized in that: The detection component includes a detection chamber. At the top of the detection chamber, there is a terahertz wave emitter notch, in which a terahertz wave emitter is provided. At the bottom of the detection chamber, there is a terahertz wave receiver notch, in which a terahertz wave receiver is provided. On the side of the detection chamber, there is an air outlet notch, in which a micro air pump is provided. Below the air outlet notch, there is an air inlet notch, in which a gas check valve is provided.

3. The gas detection system for terahertz according to claim 2, characterized in that: On both sides of the terahertz wave emitter notch, there are a first electric push rod and a second electric push rod. Outside the first electric push rod and the second electric push rod, there is a heating device.

4. A terahertz gas detection system according to claim 3, characterized in that: The motion component includes a first sliding bracket and a second sliding bracket. The first sliding bracket and the second sliding bracket are located on the base. On the first sliding bracket and the second sliding bracket, there are sliding supports. On one side of the sliding support, there is a rack, which meshes with a spur gear. The spur gear is connected to a servo motor. The servo motor is connected to a slider mechanism. The detection component is provided on the slider mechanism. The tops of the first electric push rod and the second electric push rod are both connected to the slider mechanism.

5. A terahertz gas detection system according to claim 4, characterized in that: Parallel to one side of the sliding support, there is a rolling support. Both the sliding support and the rolling support are square. The rolling support is located on the base. On the rolling support, there are rolling support wheels, which are connected to the slider mechanism.

6. The gas detection system for terahertz according to claim 5, wherein: The control module includes a main controller, which is connected to a sub-controller.

7. The gas detection system for terahertz according to claim 6, characterized in that: On the exhaust gas treatment device, the inert gas storage device and the gas to be detected storage device, there are all transfer pipes.

Images