Industrial online liquid infrared spectrum optical fiber ATR measuring device based on ATR technology

Abstract

The invention relates to the technical field of infrared spectrum measurement, in particular to an ATR technology-based industrial online liquid infrared spectrum optical fiber ATR measuring device which comprises a mounting bottom plate, fixed blocks are mounted at the top ends of a pair of lifting adjusting tables through a plurality of supporting rods, and SMA905 optical fiber connectors and SMA905 optical fiber flanges are mounted in the middles of the fixed blocks respectively. And an off-axis parabolic reflector is arranged below the fixed block. An industrial on-line liquid infrared spectrum optical fiber ATR measuring device based on the ATR technology is characterized in that all devices are installed on an installation bottom plate, two branches of a Y-shaped infrared ATR optical fiber are connected to an SMA905 optical fiber flange and an SMA905 optical fiber connector respectively, a fixing block is fixed to a lifting adjusting table through three supporting rods, the ATR technology and the infrared optical fiber are combined, and the ATR technology and the infrared optical fiber are combined to form the ATR measuring device. The requirements of online real-time testing of liquid samples can be met, real-time qualitative and quantitative testing of various component substances can be achieved at the same time, and the device has great application prospects in the industries of food engineering, fermentation, wine brewing and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of infrared spectrum measurement, and specifically to an industrial on-line liquid infrared spectrum fiber optic ATR measurement device based on ATR technology. Background Art

[0002] The Fourier Transform Infrared Spectrometer (FTIR) Attenuated Total Reflection (ATR) technology is an important testing method. Compared with relatively traditional infrared spectrum technologies, it has several obvious advantages: non-destructive - no change or damage to the sample is required during the testing process, ensuring the integrity of the sample; wide application range - applicable to various types of samples, including liquids, solids, viscous gels, etc.; simple operation - no cumbersome sample preparation processes such as pressing tablets or coating films are required, thus simplifying the experimental steps and reducing, saving time and effort.

[0003] Therefore, the ATR infrared spectrum technology is widely used in scientific research and industrial fields, but its main application field is still laboratory analysis and testing, and real-time monitoring cannot be achieved, so infrared spectrum is relatively rare in the field of industrial on-line testing.

[0004] To solve the above problems, we made improvements and proposed an industrial on-line liquid infrared spectrum fiber optic ATR measurement device based on ATR technology. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides an industrial on-line liquid infrared spectrum fiber optic ATR measurement device based on ATR technology, including a mounting base plate. A pair of lifting adjustment platforms are fixedly installed at the top of the mounting base plate. The tops of the pair of lifting adjustment platforms are respectively installed with fixing blocks through a plurality of support rods. An SMA905 fiber optic connector and an SMA905 fiber optic flange are respectively installed in the middle parts of the pair of fixing blocks. An off-axis parabolic mirror is arranged below the fixing block. The off-axis parabolic mirrors on both sides of the mounting base plate are symmetrically arranged. The off-axis parabolic mirror is relatively matched with the SMA905 fiber optic connector or the SMA905 fiber optic flange.

[0007] As a preferred technical solution of the present invention, a lifting adjustment knob is arranged on the front side of the lifting adjustment platform. The output end of the lifting adjustment platform is provided with a lifting rod. The side surface of the lifting rod is fixedly connected with the off-axis parabolic mirror, and the lifting rod passes through the adjustment block.

[0008] As a preferred technical solution of the present invention, a pair of optical fine-threaded screws are provided on the fixed block, and the bottom ends of the optical fine-threaded screws abut against the adjustment block. The pair of optical fine-threaded screws are arranged at the diagonal positions of the fixed block.

[0009] As a preferred technical solution of the present invention, a pair of mounting grooves are formed at the bottom of the fixed block. The pair of mounting grooves are arranged along the diagonal, and the mounting grooves are misaligned with the optical fine-threaded screws. A spring is fixedly connected inside the mounting groove, and the bottom end of the spring is fixedly connected with a limit ball, and the bottom end of the limit ball is embedded in the adjustment block.

[0010] As a preferred technical solution of the present invention, a groove is formed in the middle of the top end of the fixed block, and the SMA905 fiber optic connector or the SMA905 fiber optic flange is arranged inside the groove.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. For an industrial online liquid infrared spectroscopy fiber optic ATR measurement device based on the ATR technology, all components are installed on the mounting base plate. The two bifurcations of the Y-shaped infrared ATR fiber are respectively connected to the SMA905 fiber optic flange and the SMA905 fiber optic connector. The fixed block is fixed to the lifting adjustment table through three support rods. Combining the ATR technology with the infrared fiber can meet the requirements of online real-time testing of liquid samples, and can simultaneously achieve real-time qualitative and quantitative testing of multiple component substances, having great application prospects in industries such as food engineering, fermentation, and brewing.

[0013] 2. For an industrial online liquid infrared spectroscopy fiber optic ATR measurement device based on the ATR technology, the lifting adjustment knob 8 of the lifting adjustment table 2 can lift the off-axis parabolic mirror 7 together with the fiber on the adjustment block 8 as a whole (the adjustment range is ±5 mm), which is convenient for calibration.

[0014] 3. For an industrial online liquid infrared spectroscopy fiber optic ATR measurement device based on the ATR technology, the adjustment block 9 is assembled to the fixed block 3 through the limit ball 13 and the spring 14. By adjusting the two optical fine-threaded screws, the inclination angle of the horizontal plane can be adjusted, and the angle adjustment range is ±5°, which is convenient for calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is the left perspective view of an industrial online liquid infrared spectroscopy fiber optic ATR measurement device based on the ATR technology of the present invention;

[0017] Figure 2 is the right-side stereogram of an industrial on-line liquid infrared spectroscopic fiber ATR measuring device based on ATR technology according to the present invention;

[0018] Figure 3 is the partial cross-sectional view of an industrial on-line liquid infrared spectroscopic fiber ATR measuring device based on ATR technology according to the present invention;

[0019] In the figure: 1, mounting base plate; 2, lifting adjustment table; 3, fixing block; 4, groove; 5, SMA905 fiber connector; 6, SMA905 fiber flange; 7, off-axis parabolic mirror; 8, lifting adjustment knob; 9, adjustment block; 10, support rod; 11, lifting rod; 12, optical fine-thread screw; 13, limit ball; 14, spring; 15, mounting groove. Specific embodiments

[0020] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0021] Embodiment: As Figure 1 - Figure 3 shown, an industrial on-line liquid infrared spectroscopic fiber ATR measuring device based on ATR technology includes a mounting base plate 1. A pair of lifting adjustment tables 2 are fixedly installed at the top of the mounting base plate 1. The tops of the pair of lifting adjustment tables 2 are respectively installed with fixing blocks 3 through a plurality of support rods 10. An SMA905 fiber connector 5 and an SMA905 fiber flange 6 are respectively installed in the middle of the pair of fixing blocks 3. An off-axis parabolic mirror 7 is arranged below the fixing block 3. The off-axis parabolic mirrors 7 on both sides of the mounting base plate 1 are symmetrically arranged. The off-axis parabolic mirror 7 is relatively matched with the SMA905 fiber connector 5 or the SMA905 fiber flange 6;

[0022] All devices are installed on the mounting base plate 1 (which can be adapted to Fourier transform infrared spectrometers of different brands). The two branches of the Y-shaped infrared ATR fiber are respectively connected to the SMA905 fiber flange 6 and the SMA905 fiber connector 5. The fixing block 3 is fixed to the lifting adjustment table 2 through three support rods 10. Combining the ATR technology with the infrared fiber can meet the requirements of on-line real-time testing of liquid samples, and can simultaneously realize real-time qualitative and quantitative testing of multiple component substances, and has great application prospects in industries such as food engineering, fermentation, and brewing.

[0023] Specifically, referring to Figure 1 and Figure 2, a lifting adjustment knob 8 is provided on the front side of the lifting adjustment table 2, and a lifting rod 11 is provided at the output end of the lifting adjustment table 2. The side of the lifting rod 11 is fixedly connected to the off-axis parabolic mirror 7, and the lifting rod 11 passes through the adjustment block 9. A hydraulic telescopic device is provided inside the lifting adjustment table 2, and the lifting rod 11 is installed at the output end of the hydraulic telescopic device. The lifting adjustment knob 8 of the lifting adjustment table 2 can lift the off-axis parabolic mirror 7 together with the optical fiber on the adjustment block 8 as a whole (the adjustment range is ±5 mm). Both the inclination angle and the lifting adjustment are to accurately converge the light onto the optical fiber and the detector of the infrared spectrometer.

[0024] Specifically, referring to Figure 2 and Figure 3 , a pair of optical fine-threaded screws 12 are provided on the fixed block 3, and the bottom ends of the optical fine-threaded screws 12 abut against the adjustment block 9. The pair of optical fine-threaded screws 12 are arranged at the diagonal positions of the fixed block 3. A pair of mounting grooves 15 are formed at the bottom of the fixed block 3. The pair of mounting grooves 15 are arranged diagonally, and the mounting grooves 15 are misaligned with the optical fine-threaded screws 12. A spring 14 is fixedly connected inside the mounting groove 15, and a limit ball 13 is fixedly connected to the bottom end of the spring 14. The bottom end of the limit ball 13 is embedded in the adjustment block 9. The adjustment block 9 is assembled to the fixed block 3 through the limit ball 13 and the spring 14. By adjusting the two optical fine-threaded screws 12, the inclination angle adjustment in the horizontal plane can be realized, and the angle adjustment range is ±5°, which is convenient for calibration.

[0025] Specifically, referring to Figure 1 , a groove 4 is formed in the middle of the top end of the fixed block 3, and the SMA905 fiber optic connector 5 or the SMA905 fiber optic flange 6 is arranged inside the groove 4.

[0026] Working principle: The two branches of the Y-shaped infrared ATR optical fiber are respectively connected to the SMA905 fiber optic flange 6 and the SMA905 fiber optic connector 5. Rotate the lifting adjustment knob 8 to adjust the height of the lifting rod 11, and then lift the off-axis parabolic mirror 7 together with the optical fiber on the adjustment block 9 as a whole. And rotate the optical fine-threaded screw 12 to adjust the inclination angle of the SMA905 fiber optic connector 5 and the SMA905 fiber optic flange 6 through the cooperation of the optical fine-threaded screw 12 and the spring 14, so that the infrared ATR optical fiber can work normally, meet the requirements of on-line real-time testing of liquid samples, and can simultaneously realize real-time qualitative and quantitative testing of multiple component substances, and has great application prospects in industries such as food engineering, fermentation, and brewing.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An industrial on-line liquid infrared spectrum optical fiber ATR measurement device based on ATR technology, comprising a mounting base plate (1), characterized in that: A pair of lifting adjustment platforms (2) are fixedly mounted on the top of the mounting base plate (1); a fixing block (3) is mounted on the top of each of the lifting adjustment platforms (2) via a plurality of support rods (10); an SMA905 optical fiber connector (5) and an SMA905 optical fiber flange (6) are respectively mounted in the middle of the pair of fixing blocks (3); an off-axis parabolic reflector (7) is arranged below the fixing block (3); the off-axis parabolic reflectors (7) on both sides of the mounting base plate (1) are symmetrically arranged; and the off-axis parabolic reflectors (7) are relatively matched with the SMA905 optical fiber connector (5) or the SMA905 optical fiber flange (6).

2. The industrial online liquid infrared spectrum optical fiber ATR measuring device based on ATR technology according to claim 1 is characterized in that: A lifting adjustment knob (8) is arranged on the front side of the lifting adjustment platform (2), a lifting rod (11) is arranged on the output end of the lifting adjustment platform (2), a side surface of the lifting rod (11) is fixedly connected to the off-axis parabolic reflector (7), and the lifting rod (11) passes through the adjustment block (9).

3. The industrial online liquid infrared spectrum optical fiber ATR measuring device based on ATR technology according to claim 1 is characterized in that: A pair of optical fine-pitch screws (12) are provided on the fixed block (3), and the bottom ends of the optical fine-pitch screws (12) abut against the adjustment block (9), and the pair of optical fine-pitch screws (12) are arranged at diagonal positions of the fixed block (3).

4. The industrial online liquid infrared spectrum optical fiber ATR measuring device based on ATR technology according to claim 1 is characterized in that: A pair of mounting grooves (15) are provided at the bottom of the fixing block (3), the pair of mounting grooves (15) are arranged along a diagonal line, and the mounting grooves (15) are offset from the optical fine-pitch screw (12), a spring (14) is fixedly connected inside the mounting groove (15), and a limiting ball (13) is fixedly connected to the bottom end of the spring (14), and the bottom end of the limiting ball (13) is embedded in the adjustment block (9).

5. The industrial online liquid infrared spectrum optical fiber ATR measuring device based on ATR technology according to claim 1 is characterized in that: A groove (4) is provided in the middle of the top end of the fixing block (3), and the SMA905 optical fiber connector (5) or the SMA905 optical fiber flange (6) is arranged inside the groove (4).

Images