A new respiratory gas detection and processing device based on vortex interference field

Abstract

The present invention discloses a novel respiratory gas detection and processing device based on a vortex interference field, comprising a mechanical housing, wherein the interior of the mechanical housing is provided with a light processing mechanism for generating a vortex light beam, a spectroscopic device for changing the path and number of the vortex light beam, and a detection device for detecting respiratory gas. The novel respiratory gas detection and processing device based on a vortex interference field described in the present invention utilizes the high-precision characteristics of the interference light path, and detects the existence of abnormal gases in the air by affecting the coherent light beam through tiny virus molecules, and the interference fringes thereof will change significantly, thereby achieving the detection effect. Moreover, the detection is performed using optical principles, and the response time is fast, the detection accuracy is high, the detection cost is relatively low, and it can be mass-produced. It also has the characteristics of no mechanical moving parts, simple system structure, extremely high sensitivity, easy integration, no harm to the human body, high consistency, stable system, and easy expansion of functions.

Description

Technical Field

[0001] The invention relates to the field of optical technology, and in particular to a novel respiratory gas detection and processing device based on vortex interference field. Background Art

[0002] Light field control technology is an emerging technology developed in recent years, especially the control technology for vector light fields. Through light field control technology, it is proved that light not only has spin angular momentum, but also orbital angular momentum. Researchers using the spin angular momentum of light fields have a wide range of applications in the fields of atomic magnetometers, atomic gyroscopes, etc. Since 1989, when vortex light was first proposed, it was quickly systematically studied and quickly developed into an important branch of modern optical research. Because of its optical angular momentum and dynamic behavior, it has been widely used. First of all, optical vortex is applied to optical manipulation technology, which has the characteristics of non-contact, non-destructive, high reliability and small size.

[0003] In the prior art, there is a respiratory gas analyzer device, see the Chinese invention patent "A respiratory analyzer based on dual-wavelength background gas subtraction method", patent application number: 201910422765.7. And an exhaled gas detection system, see the Chinese invention patent "Exhaled gas detection system based on gas sensor", patent application number: 201910410089.1.

[0004] Prior art has certain characteristics, but such prior art has essential deficiencies: 1) The detection device is bulky. As a large-scale detection instrument, it is necessary to collect samples and analyze them in the laboratory to obtain the output results, and it cannot be worn on the body. 2) For characteristic-based gas sensors, the system accuracy and sensitivity are limited by the sensor, and the most important thing is that the sensor is limited by imported technology and cannot be applied in large quantities. 3) The sensing technology based on electrochemical principles has a slow response time and low accuracy. In summary, it cannot meet people's use requirements. For this reason, we propose a new respiratory gas detection and processing device based on vortex interference field. Summary of the invention

[0005] The main purpose of the present invention is to provide a novel respiratory gas detection and processing device based on vortex interference field, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A novel respiratory gas detection and processing device based on vortex interference field, comprising a mechanical housing, wherein a light processing mechanism for generating a vortex light beam, a spectroscopic device for changing the path and number of the vortex light beam, and a detection device for detecting respiratory gas are arranged inside the mechanical housing;

[0008] The light processing mechanism includes an ultraviolet light source, an emission light path for processing light, and a light field reconstruction system for generating a vortex light beam. The light field reconstruction system includes a No. 1 lens, a No. 2 lens, and an adjustable aperture. The No. 1 lens and the No. 2 lens have the same focal length, and the adjustable aperture is located at the focus of the No. 1 lens and the No. 2 lens.

[0009] Preferably, the emission light path comprises a beam shaper and a phase control element, and the beam shaper is one of a plano-convex lens, a plano-concave lens and a bi-convex lens.

[0010] Preferably, the light splitting device comprises a first reflector, a beam splitter, a second reflector and a third reflector;

[0011] The first reflecting mirror is used to reflect the vortex light beam constructed by the light field reconstruction system into the beam splitter;

[0012] The beam splitter is used to split the vortex beam constructed by the light field reconstruction system into two groups of vortex beams with different directions;

[0013] The second reflecting mirror and the third reflecting mirror are used to change the movement directions of the two groups of vortex light beams separated by the beam splitter.

[0014] Preferably, the first reflector, the second reflector and the third reflector are selected from the group consisting of a silver-plated reflector and an aluminum-plated reflector, and the beam splitter is selected from the group consisting of a beam splitter and a beam splitter prism.

[0015] Preferably, the detection device comprises a collection component, a photoelectric detector and a reflective element, and the photoelectric detector is one of a planar array detector and a photodiode;

[0016] The collecting component is used to collect harmful virus molecules and effective respiratory gas;

[0017] The photoelectric detector is used to detect the presence of virus molecules in respiratory gas;

[0018] The reflecting element is used to reflect the vortex light beam.

[0019] Preferably, the collecting assembly includes an effective gas collecting component for collecting effective breathing gas and a collecting device for collecting harmful viral molecules, and a No. 1 ventilation pipe and a No. 2 ventilation pipe are provided on the outer surface of the collecting device, and the ends of the No. 1 ventilation pipe and the No. 2 ventilation pipe away from the collecting device are respectively located on the movement paths of the two groups of vortex light beams after splitting.

[0020] Preferably, a sealing structure is provided at a position of the reflective element away from the second reflective mirror, a primary filtering device is fixedly installed on the inner surface of the mechanical housing away from the position of the reflective element, and a power supply is provided inside the mechanical housing.

[0021] Compared with the prior art, the present invention provides a novel respiratory gas detection and processing device based on vortex interference field, which has the following beneficial effects:

[0022] 1. The present invention utilizes the high-precision characteristics of the interference optical path. It does not need to analyze the specific components of the detected gas. The interference fringes of the coherent light beams affected by tiny virus molecules will change significantly. This property can detect the presence of abnormal gases in the air, thereby achieving the detection effect. The entire respiratory gas detection and processing device is small in size and can be worn on the body.

[0023] 2. The present invention utilizes optical principles for detection and does not require a characteristic gas sensor for detection, so the cost is relatively low and can be mass-produced. In addition, optical means are used for detection, so the response time is fast and the detection accuracy is relatively high. It also has the characteristics of no mechanical moving parts, simple system structure, extremely high sensitivity, easy integration, no harm to the human body, high consistency, stable system, and easy function expansion. Moreover, the entire new respiratory gas detection and processing device based on the vortex interference field is easy to operate, has a good use effect, and is relatively practical.

[0024] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a novel respiratory gas detection and processing device based on vortex interference field of the present invention;

[0026] Figure 2 This is a structural diagram of an optical means in a novel respiratory gas detection and processing device based on vortex interference field of the present invention;

[0027] Figure 3 This is a phase distribution diagram of a phase control element in a novel respiratory gas detection and processing device based on vortex interference field of the present invention.

[0028] In the figure: 1. ultraviolet light source; 2. beam shaper; 3. phase control element; 4. light field reconstruction system; 401. lens No. 1; 402. lens No. 2; 403. adjustable aperture; 5. reflector No. 1; 6. spectrometer; 7. reflector No. 2; 8. collecting device; 9. power supply; 10. reflector No. 3; 11. ventilation pipe No. 1; 12. ventilation pipe No. 2; 13. effective gas collecting component; 14. photoelectric detector; 15. reflecting element; 16. sealing structure; 17. primary filtering device; 18. mechanical housing. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] A novel respiratory gas detection and processing device based on vortex interference field, such as Figure 1-3 As shown, it includes a mechanical housing 18, and the interior of the mechanical housing 18 is provided with a light processing mechanism for generating a vortex light beam, a spectroscopic device for changing the path and quantity of the vortex light beam, and a detection device for detecting respiratory gas;

[0032] The light processing mechanism includes an ultraviolet light source 1, an emission light path for processing light, and a light field reconstruction system 4 for generating a vortex light beam. The light field reconstruction system 4 includes a lens No. 1 401, a lens No. 2 402, and an adjustable aperture 403. The focal lengths of the lens No. 1 401 and the lens No. 2 402 are the same. The adjustable aperture 403 is located at the focus of the lens No. 1 401 and the lens No. 2 402, and the adjustable aperture 403 has a filtering effect.

[0033] The ultraviolet light source 1 is one of a DFB type, a vecsel type, and an ultraviolet light emitting diode.

[0034] The emission optical path includes a beam shaper 2 and a phase control element 3. The beam shaper 2 uses one of a plano-convex lens, a plano-concave lens and a bi-convex lens. The phase control element 3 has Figure 3 DOE elements of the phase structure.

[0035] The light splitting device comprises a first reflector 5, a beam splitter 6, a second reflector 7 and a third reflector 10;

[0036] Reflecting mirror No. 1 5: used to reflect the vortex light beam constructed by the light field reconstruction system 4 into the beam splitter 6;

[0037] Beam splitter 6: splits the vortex beam constructed by the light field reconstruction system 4 into two groups of vortex beams with different directions;

[0038] The second reflecting mirror 7 and the third reflecting mirror 10 are used to change the movement directions of the two groups of vortex light beams separated by the beam splitter 6.

[0039] The first reflector 5, the second reflector 7 and the third reflector 10 are selected from the group consisting of a silver-plated reflector and an aluminum-plated reflector, and the beam splitter 6 is selected from the group consisting of a beam splitter plate and a beam splitter prism.

[0040] The detection device includes a collection component, a photodetector 14 and a reflective element 15, and the photodetector 14 is a planar array detector or a photodiode;

[0041] Collection component; used to collect harmful virus molecules and collect effective respiratory gases;

[0042] Photoelectric detector 14: used to detect the presence of virus molecules in respiratory gas;

[0043] Reflective element 15: used for reflecting the vortex light beam to reduce the harm of the vortex light beam to the human body.

[0044] The collecting assembly includes an effective gas collecting part 13 for collecting effective breathing gas and a collecting device 8 for collecting harmful virus molecules. A No. 1 ventilation pipe 11 and a No. 2 ventilation pipe 12 are arranged on the outer surface of the collecting device 8. The ends of the No. 1 ventilation pipe 11 and the No. 2 ventilation pipe 12 away from the collecting device 8 are respectively located on the movement paths of the two groups of vortex light beams after splitting.

[0045] The collecting device 8 is one of high molecular polymers, the No. 1 ventilation pipe 11 and the No. 2 ventilation pipe 12 are one of corrosion-resistant flexible materials, the effective gas collecting component 13 is one of resin and PVC, the sealing structure 16 is one of silica gel, resin, and PVC, the primary filtering device 17 is one of a high efficiency filter and an ultra-high efficiency filter, and the mechanical housing 18 is one of a resin and PVC material.

[0046] A sealing structure 16 is arranged at a position of the reflective element 15 away from the second reflective mirror 7, a primary filtering device 17 is fixedly installed on the inner surface of the mechanical housing 18 away from the reflective element 15, a power supply 9 is arranged inside the mechanical housing 18, the power supply 9 adopts a lithium battery, and the power supply 9 supplies power to the entire device.

[0047] It should be noted that the present invention is a novel respiratory gas detection and processing device based on a vortex interference field. When in use, the light emitted by the ultraviolet light source 1 passes through the beam shaper 2, the phase control element 3 and the light field reconstruction system 4 in sequence, and a vortex light beam (optical vortex) is obtained at the exit pupil of the light field reconstruction system 4. The vortex light beam is reflected to the beam splitter 6 through the first reflector 5. The beam splitter 6 divides the vortex light beam into two groups of vortex light beams. The two groups of vortex light beams are reflected by the second reflector 7 and the third reflector 10 and then are collected in the effective gas collection component 13 (effective gas collection component 13). The entrance is located at two mutually orthogonal vortex light beams) and two mutually orthogonal vortex light beams are obtained. The respiratory gas enters the mechanical housing 18 through the sealing structure 16. The orbital angular momentum characteristics of the optical vortex are used to make extremely small virus molecules do spiral motion away from the central singular point of the vortex, so that the virus molecules are collected in the collection device 8. The concentration change of the virus molecules in the device is obtained by the change of the coherence of the two light beams on the photoelectric detector 14, and the distribution of the virus molecules in the device is obtained, thereby realizing the detection and processing process of the respiratory gas and achieving the purpose of online detection.

[0048] The present invention is based on the principle of vector diffraction theory, utilizes the characteristics of light field reconstruction, and utilizes the high-precision characteristics of the interference light path in principle. It does not need to analyze the specific gas components to be detected. The interference fringes of the coherent light beams affected by tiny virus molecules will change significantly. This property can detect the presence of abnormal gases in the air, thereby achieving the detection effect. The entire respiratory gas detection and processing device is small in size and can be worn on the body.

[0049] The present invention utilizes optical principles for detection, and does not require characteristic gas sensors for detection, has relatively low cost, and can be mass-produced. In addition, it uses optical means for detection, has a fast response time, and has relatively high detection accuracy. It also has the characteristics of no mechanical moving parts, simple system structure, extremely high sensitivity, easy integration, no harm to the human body, high consistency, stable system, and easy function expansion. Moreover, the entire new respiratory gas detection and processing device based on the vortex interference field is easy to operate, has a good use effect, and is relatively practical.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A novel respiratory gas detection and processing device based on vortex interference field, characterized in that; Including mechanical housing (18), the mechanical housing (18) is provided with a light processing mechanism for generating a vortex light beam, a spectroscopic device for changing the path and quantity of the vortex light beam, and a detection device for detecting respiratory gas; The light processing mechanism comprises an ultraviolet light source (1), an emission light path for processing light, and a light field reconstruction system (4) for generating a vortex light beam, wherein the light field reconstruction system (4) comprises a first lens (401), a second lens (402), and an adjustable diaphragm (403), wherein the first lens (401) and the second lens (402) have the same focal length, and the adjustable diaphragm (403) is located at the focal point of the first lens (401) and the second lens (402); The light splitting device comprises a first reflecting mirror (5), a light splitting mirror (6), a second reflecting mirror (7) and a third reflecting mirror (10); The first reflector (5) is used to reflect the vortex light beam constructed by the light field reconstruction system (4) into the beam splitter (6); the beam splitter (6) is used to split the vortex light beam constructed by the light field reconstruction system (4) into two groups of vortex light beams with different directions; The second reflecting mirror (7) and the third reflecting mirror (10) are used to change the movement directions of the two groups of vortex light beams separated by the beam splitter (6); The first reflector (5), the second reflector (7) and the third reflector (10) are selected from the group consisting of a silver-plated reflector and an aluminum-plated reflector, and the beam splitter (6) is selected from the group consisting of a beam splitter and a beam splitter prism; The detection device comprises a collection component, a photoelectric detector (14) and a reflective element (15); the photoelectric detector (14) is one of a planar array detector and a photodiode; The collecting component; Used to collect harmful virus molecules and collect effective respiratory gases; The photoelectric detector (14) is used to detect the presence of virus molecules in the respiratory gas; the reflective element (15) is used to reflect the vortex light beam.

2. According to claim 1, a novel respiratory gas detection and processing device based on vortex interference field is characterized in that: The emission light path comprises a beam shaper (2) and a phase control element (3), and the beam shaper (2) adopts one of a plano-convex lens, a plano-concave lens and a bi-convex lens.

3. According to claim 1, a novel respiratory gas detection and processing device based on vortex interference field is characterized in that: The collecting assembly comprises an effective gas collecting component (13) for collecting effective respiratory gas and a collecting device (8) for collecting harmful virus molecules. A first ventilation pipe (11) and a second ventilation pipe (12) are arranged on the outer surface of the collecting device (8). The ends of the first ventilation pipe (11) and the second ventilation pipe (12) away from the collecting device (8) are respectively located on the movement paths of the two groups of vortex light beams after the splitting.

4. According to claim 3, a novel respiratory gas detection and processing device based on vortex interference field is characterized in that: The reflective element (15) is provided with a sealing structure (16) at a position away from the second reflective mirror (7), a primary filtering device (17) is fixedly installed on the inner surface of the mechanical housing (18) at a position away from the reflective element (15), and a power supply (9) is provided inside the mechanical housing (18).

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