Online calibration optical probe device

Abstract

The invention discloses an online calibration optical probe device, and relates to the technical field of optical detection equipment, the online calibration optical probe device comprises a monitoring sample pipeline and a waste discharge pipe, auxiliary connecting frames are symmetrically embedded in the two sides of the monitoring sample pipeline, and an optical emission probe is embedded in the auxiliary connecting frame on the left side. The on-line calibration optical probe device can realize a real-time on-line calibration function in practical application, in the equipment operation process, the optical probe does not need to be removed from a work site, the optical probe can be automatically calibrated by utilizing the interval time of the detection work or according to a preset calibration period, and in the industrial production process monitoring, the real-time on-line calibration of the optical probe can be realized. The optical probe can automatically carry out online calibration once every certain time (such as 1 hour) while the production line continuously runs, so that the accuracy of detection data is ensured, equipment shutdown caused by offline calibration is effectively avoided, the continuity of the production process is ensured, and the working efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical detection equipment, in particular to an online calibration optical probe device. BACKGROUND

[0002] In many application scenarios relying on optical probes for detection, such as environmental monitoring, biomedical detection, industrial production process monitoring, etc., the measurement accuracy of optical probes is crucial. With the increase of use time and changes in working environment, the performance of optical probes tends to drift. For example, the aging of light sources can cause the light intensity to decrease, the pollution of optical elements can change the transmission characteristics of light, and the sensitivity of detectors can also change. These factors can cause deviations in the measurement results of optical probes, seriously affecting the reliability of detection data. Currently, the traditional optical probe calibration method has many drawbacks. In most cases, the optical probe needs to be disassembled from the working site, transported to a special calibration laboratory for calibration. This offline calibration method not only consumes a lot of time and labor cost, but also causes the equipment to stop working, affecting the continuity of production or monitoring work. For example, in an industrial production line, optical probes are used to monitor product quality in real time. Once offline calibration is performed, the production line may need to be temporarily suspended, resulting in a decrease in production efficiency and economic losses. In addition, due to the difference between the calibration environment and the actual working environment, the optical probe calibrated in the laboratory may again have measurement deviations after returning to the working site due to environmental changes, which cannot truly meet the high-precision measurement requirements in actual work. SUMMARY

[0003] The present application aims to provide an online calibration optical probe device to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solution: an online calibration optical probe device, comprising a monitoring sample pipeline and a waste pipeline, the monitoring sample pipeline is symmetrically embedded with auxiliary connecting frames on both sides, an optical emission probe is embedded and installed in the left auxiliary connecting frame, an optical probe shell is embedded and installed in the right auxiliary connecting frame, an auxiliary adjusting mechanism is arranged in the optical probe shell, a feeding mechanism is fixedly installed at the bottom of the optical probe shell, an optical probe window is fixedly installed on the end surface of the optical probe shell, and a fiber collimating lens group is fixedly installed in the optical probe shell, the waste pipeline is fixedly installed at the top of the optical probe shell, a gas-liquid pump is connected to the end of the waste pipeline, and a collection assembly is placed at the bottom of the gas-liquid pump.

[0005] Further, the external size of the end of the optical probe shell matches the internal size of the auxiliary connecting frame, the optical probe shell and the auxiliary connecting frame form a clamping structure, and the end of the auxiliary connecting frame is fixedly connected to the side of the monitoring sample pipeline.

[0006] Further, the auxiliary adjusting mechanism comprises a reference cell body, the end of the reference cell body is provided with a first reference cell window, the other end of the reference cell body is provided with a second reference cell window, the first reference cell window and the second reference cell window are fixedly installed on the inner surface of the optical probe shell, the bottom of the reference cell body is provided with a reference cell input end, and the top of the reference cell body is provided with a reference cell output end.

[0007] Further, the bottom of the reference cell output end is fixedly connected to the top of the optical probe shell, the top of the reference cell output end is fixedly connected to the end of the waste pipeline, and the waste pipeline forms a fixed structure with the optical probe shell through the reference cell output end.

[0008] Further, the feeding mechanism comprises a connecting pipe, the bottom of the connecting pipe is fixedly connected with a three-way electromagnetic valve, the connecting end of the three-way electromagnetic valve is installed with a reference solution conveying pipe, the other connecting end of the three-way electromagnetic valve is installed with a nitrogen conveying pipe, and the top of the connecting pipe is fixedly connected to the bottom of the reference cell input end.

[0009] Further, the collecting assembly comprises a waste liquid collecting box, the top of the waste liquid collecting box is provided with an observation port, the inner surface of the observation port is fixedly installed with a bearing frame, the top of the bearing frame is connected with a sealing plate in a fit manner, and the top of the sealing plate is fixedly installed with a handle.

[0010] Further, the internal size of the observation port matches the external size of the sealing plate, the sealing plate forms a clamping structure with the waste liquid collecting box through the observation port, and the bottom of the sealing plate is connected to the top of the bearing frame in a fit manner.

[0011] Further, the inside of the optical probe shell is provided with an intelligent control system, the intelligent control system is used for monitoring the working state and optical performance parameters of the probe device in real time, can automatically adjust the calibration strategy according to the environmental changes, and the intelligent control system comprises: an information transmission module, which is used for communicating with an external monitoring network and a remote control center to receive instructions from the remote control center and realize remote control and parameter adjustment; a light monitoring module, which is used for monitoring the light emitted and received by the optical lens group in real time, and sending a signal to a subsequent module for control when the light monitoring intensity exceeds a set calibration threshold; A valve control module is used to control the opening and closing of the corresponding connection in the three-way electromagnetic valve, so as to ensure that the feeding mechanism does not have an error delivery when delivering the reference solution or nitrogen, thereby improving the automatic calibration performance of the optical probe device. A pump body control module is used to control the opening and closing of the gas-liquid pump, so that the reference solution delivery pipe and the nitrogen delivery pipe cooperatively deliver the reference solution or nitrogen into the inside of the reference cell body, so as to achieve the purpose of assisting light calibration. A calibration control module is used to automatically control the calibration measurement of light. A fault diagnosis module is used to monitor the working state of the probe and the intelligent control system, and when the fault diagnosis module detects an abnormal condition, automatically sends an alarm information to the remote control center.

[0012] Further, the use method of the device comprises the following steps: S1, the optical emission probe generates a fiber optic beam during operation, then the beam passes through the monitoring sample pipeline into the inside of the optical probe shell and is received and processed by the fiber collimating lens group, and the optical probe device is monitored by the intelligent control system in real time during operation. S2, when the fault diagnosis module detects that the light of the probe fails (the aging of the light source will cause the light intensity to decrease, and the pollution of the optical element will change the transmission characteristics of the light), a signal is sent to the remote control center through the connection and cooperation of the external monitoring network, then the remote control center sends an instruction, at this time the intelligent control system receives the instruction through the information transmission module and sends a signal to the light monitoring module; S3, when the light monitoring module receives the instruction, automatically monitors the fiber optic beam emitted by the optical emission probe, then sends an instruction to the valve control module and the pump body control module, so that the valve control module controls the reference solution delivery pipe connection in the three-way electromagnetic valve to open, and the nitrogen delivery pipe connection to close, at the same time the pump body control module controls the gas-liquid pump to open, so that the reference solution is delivered into the inside of the reference cell body through the reference solution delivery pipe and the connecting pipe; S4, when the inside of the reference cell body is filled with the reference solution, the gas-liquid pump and the three-way electromagnetic valve are all closed, and the pump body control module sends an instruction to the calibration control module, then the calibration control module starts to run to perform automatic optical fiber beam calibration measurement, when the light monitoring module detects that the light calibration is completed, an instruction is sent to the valve control module and the pump body control module, at this time the valve control module controls the nitrogen gas delivery pipe connection to open, the reference solution delivery pipe connection to close, so that the reference solution in the reference cell body is transported into the inside of the collection assembly through the waste pipe, and the nitrogen gas transported by the nitrogen gas delivery pipe is injected into the inside of the reference cell body, so that the reference cell body and the first reference cell window and the second reference cell window are purged, and the solution residue and impurities on the inner surface of the reference cell body are cleaned. S5, when the inside of the reference cell body is cleaned, the valve control module and the pump body control module continue to run to close the three-way electromagnetic valve and the gas-liquid pump to ensure the normal work of the subsequent probe.

[0013] Further, in the step S4, when the inside of the nitrogen gas supply mechanism is cleaned, detection processing needs to be performed to ensure that there is no reference solution or impurities residue in the inside of the reference cell body.

[0014] The present application provides an online calibration optical probe device, which has the following beneficial effects: 1、The present application can realize real-time online calibration function in actual application, without removing the optical probe from the working site during the operation of the equipment, the optical probe can be calibrated automatically by using the gap time of the detection work or according to the preset calibration period, in the industrial production process monitoring, the optical probe can be calibrated automatically once every certain time (such as 1 hour) while the production line is continuously running, which ensures the accuracy of the detection data and effectively avoids the equipment downtime caused by offline calibration, ensures the continuity of the production process and significantly improves the work efficiency.

[0015] 2、The present application can be calibrated in real time in the actual working environment, which can effectively eliminate the influence of the performance drift of the optical probe and the change of the working environment on the measurement results, and through regular calibration, the measurement deviation of the optical probe caused by factors such as light source aging, optical element pollution and detector sensitivity change can be continuously corrected, which significantly improves the measurement accuracy, in the environmental monitoring field, the concentration of environmental pollutants can be more accurately detected, and more reliable data support is provided for environmental protection decision-making, according to actual test, after online calibration by using the present application, the measurement accuracy of the optical probe is improved by 30%-50% compared with before calibration, and the measurement error is effectively reduced.

[0016] 3、On the one hand, the present application reduces the labor cost required by offline calibration, and avoids the frequent disassembly, transportation and reinstallation operations of professional technicians, and on the other hand, avoids the economic loss caused by equipment downtime, especially in industrial production, greatly improves the operation efficiency of the production line, and at the same time, due to the improvement of measurement accuracy, the product quality problems or monitoring misjudgment caused by measurement error can be reduced, the production cost and social cost are further reduced, and the operator only needs to send a simple instruction through an external device (such as a host computer or a mobile phone APP) to complete the calibration, measurement data query, device parameter setting and other operations, the operation interface is simple and intuitive, even non-professionals can quickly get started, the requirement for professional skills of the operator is reduced, and the usability and popularity of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of the online calibration optical probe device of the present application; Figure 2 is a rear view of the online calibration optical probe device of the present application; Figure 3 is a rear view of the online calibration optical probe device of the present application; Figure 2 is an enlarged view of structure A of the online calibration optical probe device of the present application; Figure 4 is a front view of the online calibration optical probe device of the present application; Figure 5 is a front view of the online calibration optical probe device of the present application;

[0018] In the figure: 1, monitoring sample pipeline; 2, auxiliary connecting frame; 3, optical emission probe; 4, optical probe shell; 5, auxiliary adjusting mechanism; 51, reference cell main body; 52, first reference cell window; 53, second reference cell window; 54, reference cell input end; 55, reference cell output end; 6, feeding mechanism; 61, connecting pipe; 62, three-way electromagnetic valve; 63, reference solution delivery pipe; 64, nitrogen delivery pipe; 7, optical probe window; 8, optical fiber collimating lens group; 9, waste pipe; 10, gas-liquid pump; 11, collection assembly; 111, waste liquid collection tank; 112, observation port; 113, bearing frame; 114, sealing plate; 115, handle. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0020] Example 1 As Figures 1-4As shown, an online calibration optical probe device includes a monitoring sample pipe 1 and a waste pipe 9. Auxiliary connecting frames 2 are symmetrically embedded on both sides of the monitoring sample pipe 1. An optical emission probe 3 is embedded inside the left auxiliary connecting frame 2, and an optical probe housing 4 is embedded inside the right auxiliary connecting frame 2. The external dimensions of the end of the optical probe housing 4 match the internal dimensions of the auxiliary connecting frame 2, and the optical probe housing 4 and the auxiliary connecting frame 2 form a locking structure. The end of the auxiliary connecting frame 2 is fixedly connected to the side of the monitoring sample pipe 1. The locking structure of the optical probe housing 4 and the auxiliary connecting frame 2 makes the optical probe housing 4 more secure when installed into the monitoring sample pipe 1 via the auxiliary connecting frame 2, and the optical probe... An auxiliary adjustment mechanism 5 is provided inside the head housing 4. The auxiliary adjustment mechanism 5 includes a reference cell body 51. A first reference cell window 52 is provided at one end of the reference cell body 51, and a second reference cell window 53 is provided at the other end of the reference cell body 51. Both the first reference cell window 52 and the second reference cell window 53 are fixedly installed on the inner surface of the optical probe housing 4. A reference cell input end 54 is provided at the bottom of the reference cell body 51, and a reference cell output end 55 is provided at the top of the reference cell body 51. The bottom of the reference cell output end 55 is fixedly connected to the top of the optical probe housing 4, and the top of the reference cell output end 55 is fixedly connected to the end of the waste discharge pipe 9. The waste discharge pipe 9 forms a connection with the optical probe housing 4 through the reference cell output end 55. A fixed structure is used, with the waste discharge pipe 9 and optical probe housing 4 configured as fixed structures, preventing the waste discharge pipe 9 from loosening during waste liquid transportation. A feeding mechanism 6 is fixedly installed at the bottom of the optical probe housing 4, including a connecting pipe 61. A three-way solenoid valve 62 is fixedly connected to the bottom of the connecting pipe 61, and a reference solution delivery pipe 63 is installed at one end of the three-way solenoid valve 62. A nitrogen delivery pipe 64 is installed at the other end of the three-way solenoid valve 62. The top of the connecting pipe 61 is fixedly connected to the bottom of the reference cell input end 54. An optical probe window 7 is fixedly installed on the inner surface of the end of the optical probe housing 4, and a fiber optic collimating lens group 8 is fixedly installed inside the optical probe housing 4. A gas-liquid pump 10 is fixedly installed on the top of the optical probe housing 4, and the end of the waste discharge pipe 9 is connected to the gas-liquid pump 10. A collection assembly 11 is placed at the bottom of the gas-liquid pump 10. The collection assembly 11 includes a waste liquid collection tank 111, and an observation port 112 is provided on the top of the waste liquid collection tank 111. A support frame 113 is fixedly installed on the inner surface of the observation port 112, and a sealing plate 114 is attached to the top of the support frame 113. The internal dimensions of the observation port 112 match the external dimensions of the sealing plate 114, and the sealing plate 114 and the waste liquid collection tank 111 form a locking structure through the observation port 112. The bottom of the sealing plate 114 is attached to the top of the support frame 113. Through the locking structure of the sealing plate 114 and the waste liquid collection tank 111,This design allows for quick assembly and disassembly of the sealing plate 114, facilitating subsequent waste liquid cleanup. A handle 115 is fixedly mounted on the top of the sealing plate 114. The optical probe window 7 is made of sapphire or quartz, and its surface has a nano-hydrophobic coating to reduce adhesion to the probe surface. Its primary function is to isolate the sample from the optical components, extending into the sample to isolate it from external dust and liquids, while also providing pressure and wear resistance to protect the probe.

[0021] like Figure 5 As shown, the optical probe housing 4 is equipped with an intelligent control system, which monitors the working status and optical performance parameters of the probe device in real time, and can automatically adjust the calibration strategy according to environmental changes. The intelligent control system includes: The information transmission module is responsible for communication with the external monitoring network and the remote control center, in order to receive instructions from the remote control center and realize remote control and parameter adjustment. The light monitoring module is used to monitor the light emitted and received by the optical lens group in real time. When the light intensity exceeds the set calibration threshold, it sends a signal to the subsequent modules for control. The valve control module is used to control the opening and closing of the corresponding connection in the three-way solenoid valve 62 to ensure that the feeding mechanism 6 does not deliver the reference solution or nitrogen gas incorrectly, thereby improving the automatic calibration performance of the optical probe device. The pump control module is used to control the opening and closing of the gas-liquid pump 10, so that the reference solution delivery pipe 63 and the nitrogen delivery pipe 64 cooperate to deliver the reference solution or nitrogen into the reference pool body 51 respectively, so as to achieve the purpose of assisting light calibration. The calibration and control module is used to automatically control the calibration and measurement of light. The fault diagnosis module is used to monitor the working status of the probe and intelligent control system. When the fault diagnosis module detects an abnormality, it automatically sends an alarm message to the remote control center.

[0022] like Figures 1-5 As shown, the method of using the device includes the following steps: S1. When the optical transmitting probe 3 is running, it generates an optical fiber beam. Then, the beam passes through the monitoring sample pipe 1 and enters the interior of the optical probe housing 4. It is received and processed by the optical fiber collimating lens group 8. The intelligent control system monitors the probe in real time during the operation of the optical probe device. S2. When the fault diagnosis module detects that the probe light is faulty, the light source aging will cause the light intensity to decrease, and the optical components will be contaminated and change the light transmission characteristics, it will send a signal to the remote control center through the connection of the external monitoring network. Then the remote control center sends an instruction. At this time, the intelligent control system receives the instruction through the information transmission module and sends a signal to the light monitoring module. S3. When the light monitoring module receives the instruction, it automatically monitors the fiber optic beam emitted by the optical emission probe 3, and then sends the instruction to the valve control module and the pump control module. This causes the valve control module to open the connection of the reference solution delivery pipe 63 in the three-way solenoid valve 62 and close the connection of the nitrogen delivery pipe 64. At the same time, the pump control module controls the gas-liquid pump 10 to open, so that the reference solution is delivered into the interior of the reference pool body 51 through the reference solution delivery pipe 63 and the connecting pipe 61. S4. When the reference pool body 51 is filled with reference solution, the gas-liquid pump 10 and the three-way solenoid valve 62 are both closed. At the same time, the pump control module sends a command to the calibration control module. Then, the calibration control module starts to run to perform automatic fiber optic beam calibration measurement. When the light monitoring module detects that the light calibration is completed, it sends a command to the valve control module and the pump control module. At this time, the valve control module controls the opening of the nitrogen delivery pipe 64 connection and the closing of the reference solution delivery pipe 63 connection, so that the reference solution in the reference pool body 51 is delivered into the collection component 11 through the waste pipe 9. At the same time, the nitrogen delivered by the nitrogen delivery pipe 64 is injected into the interior of the reference pool body 51, thereby achieving the purpose of purging the reference pool body 51 and the first reference pool window 52 and the second reference pool window 53, and cleaning the solution residue and impurities on the inner surface of the reference pool body 51. When the nitrogen has finished cleaning the interior of the feeding mechanism 6, it is necessary to perform testing to ensure that there is no reference solution or impurities remaining inside the reference pool body 51. S5. After the interior of the reference tank body 51 is cleaned, the valve control module and the pump control module continue to operate to shut down the three-way solenoid valve 62 and the gas-liquid pump 10 to ensure the normal operation of the subsequent probes.

[0023] Example 2: Application Scenario of Online Electrolyte Process Monitoring 1. Device setup: The online calibration optical probe of the present invention is installed on the flow cell of the pipeline for online process monitoring of electrolyte, ensuring that the optical part of the probe is completely immersed in the electrolyte during the measurement process, and that the installation position can accurately reflect the composition content of the electrolyte. 2. Calibration process: Through the operation interface of the intelligent control system, the monitoring parameters of the probe are set to measure indicators such as moisture, color, conductivity, density, and acidity of the electrolyte. At the same time, based on the data and viscosity of electrolytes with different formulations, the cleaning threshold is set to start the cleaning program when the contaminant coverage area on the probe surface reaches 5%, and the nitrogen purging process is started. The cleaning cycle is to automatically detect the degree of contamination every 10 hours. 3. Running effect During a month of continuous operation, the probe maintained stable measurement performance. Comparison with laboratory tests of electrolyte collected periodically revealed a high degree of agreement between the probe's measurement data and laboratory test data, with measurement errors controlled within ±2%. During the cleaning process, the cleaning and purging effectively removed algae, silt, and other contaminants from the probe surface, ensuring that the optical lens surface remained clean. No abnormal measurement data was observed due to electrolyte crystallization on the wall. The intelligent control system operated stably, accurately initiating and controlling the cleaning program based on the actual flow cell conditions, without any fault alarms.

[0024] Example 3: Application Scenario of Monitoring in Industrial Wastewater Treatment Workshop 1. Equipment compatibility Based on the monitoring needs of the industrial wastewater treatment workshop, the probe was adapted by adding a protective shell to the outside of the probe to resist the strong corrosive substances that may be present in the industrial wastewater. At the same time, the communication interface of the intelligent control system was adjusted to enable it to seamlessly connect with the automated control system in the workshop. 2. Adjustment of work mode Given the frequent changes in the quality and high degree of pollution of industrial wastewater, the cleaning threshold of the probe is adjusted through an automated control system so that the cleaning program is initiated when the surface of the probe is covered by 3% of the contaminants. The cleaning cycle is shortened to automatically detect the degree of pollution every 30 minutes. Furthermore, based on the main pollutant components in the wastewater, a targeted cleaning method is selected. For example, for wastewater containing a large amount of oil, an active alkaline cleaning solution is used to rinse and blow the optical window of the probe. 3. Practical Application Results During two months of continuous operation in the industrial wastewater treatment workshop, the probe operated stably, providing accurate data support for real-time adjustments to the wastewater treatment process. By comparing the monitoring data of various indicators of wastewater before and after treatment, it effectively helped staff optimize the treatment process and improve wastewater treatment efficiency. In terms of self-cleaning, the cleaning liquid and the nano-level hydrophobic coating work together to ensure the cleanliness of the probe's optical surface even in highly polluted industrial wastewater environments, ensuring the accuracy of measurement data. The intelligent control system and the automated control system work smoothly together, and can adjust the cleaning strategy in a timely manner according to changes in water quality during the wastewater treatment process, without any equipment failure or resource waste caused by untimely or excessive cleaning.

[0025] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An online calibration optical probe device, comprising a monitoring sample conduit (1) and a waste discharge conduit (9), characterized in that, Auxiliary connecting frames (2) are symmetrically installed on both sides of the monitoring sample pipeline (1). An optical emission probe (3) is installed inside the auxiliary connecting frame (2) on the left side, and an optical probe housing (4) is installed inside the auxiliary connecting frame (2) on the right side. An auxiliary adjustment mechanism (5) is provided inside the optical probe housing (4). A feeding mechanism (6) is fixedly installed at the bottom of the optical probe housing (4). An optical probe window (7) is fixedly installed on the inner surface of the end of the optical probe housing (4). At the same time, an optical fiber collimating lens group (8) is fixedly installed inside the optical probe housing (4). The waste discharge pipe (9) is fixedly installed on the top of the optical probe housing (4). A gas-liquid pump (10) is connected to the end of the waste discharge pipe (9). A collection component (11) is placed at the bottom of the gas-liquid pump (10).

2. The online calibration optical probe device according to claim 1, characterized in that, The external dimensions of the end of the optical probe housing (4) match the internal dimensions of the auxiliary connecting frame (2), and the optical probe housing (4) and the auxiliary connecting frame (2) form a snap-fit ​​structure, and the end of the auxiliary connecting frame (2) is fixedly connected to the side of the monitoring sample tube (1).

3. The online calibration optical probe device according to claim 1, characterized in that, The auxiliary adjustment mechanism (5) includes a reference cell body (51), and a first reference cell window (52) is provided at one end of the reference cell body (51), and a second reference cell window (53) is provided at the other end of the reference cell body (51). The first reference cell window (52) and the second reference cell window (53) are both fixedly installed on the inner surface of the optical probe housing (4). Meanwhile, a reference cell input terminal (54) is provided at the bottom of the reference cell body (51), and a reference cell output terminal (55) is provided at the top of the reference cell body (51).

4. The online calibration optical probe device according to claim 3, characterized in that, The bottom of the reference cell output terminal (55) is fixedly connected to the top of the optical probe housing (4), and the top of the reference cell output terminal (55) is fixedly connected to the end of the waste discharge pipe (9). The waste discharge pipe (9) forms a fixed structure with the optical probe housing (4) through the reference cell output terminal (55).

5. The online calibration optical probe device according to claim 3, characterized in that, The feeding mechanism (6) includes a connecting pipe (61), and a three-way solenoid valve (62) is fixedly connected to the bottom of the connecting pipe (61). A reference solution delivery pipe (63) is installed at the connecting end of the three-way solenoid valve (62), and a nitrogen delivery pipe (64) is installed at the other connecting end of the three-way solenoid valve (62). At the same time, the top of the connecting pipe (61) is fixedly connected to the bottom of the reference pool input end (54).

6. The online calibration optical probe device according to claim 1, characterized in that, The collection assembly (11) includes a waste liquid collection tank (111), and an observation port (112) is provided on the top of the waste liquid collection tank (111). A support frame (113) is fixedly installed on the inner surface of the observation port (112), and a sealing plate (114) is attached to the top of the support frame (113). A handle (115) is fixedly installed on the top of the sealing plate (114).

7. The online calibration optical probe device according to claim 6, characterized in that, The internal dimensions of the observation port (112) match the external dimensions of the sealing plate (114), and the sealing plate (114) forms a locking structure with the waste liquid collection box (111) through the observation port (112), and the bottom of the sealing plate (114) is attached to the top of the support frame (113).

8. The online calibration optical probe device according to claim 1, characterized in that, The optical probe housing (4) is equipped with an intelligent control system, which is used to monitor the working status and optical performance parameters of the probe device in real time, and can automatically adjust the calibration strategy according to environmental changes. The intelligent control system includes: The information transmission module is responsible for communicating with the external monitoring network and the remote control center to receive instructions from the remote control center and realize remote control and parameter adjustment. The light monitoring module is used to monitor the light emitted and received by the optical lens group in real time. When the light monitoring intensity exceeds the set calibration threshold, it sends a signal to the subsequent modules for control. The valve control module is used to control the opening and closing of the corresponding connection in the three-way solenoid valve (62) to ensure that the feeding mechanism (6) will not make mistakes when feeding the reference solution or nitrogen, thereby improving the automatic calibration performance of the optical probe device. The pump body control module is used to control the opening and closing of the gas-liquid pump (10), so that the reference solution delivery pipe (63) and the nitrogen delivery pipe (64) cooperate with each other to deliver the reference solution or nitrogen into the interior of the reference pool body (51) to achieve the purpose of assisting light calibration. A calibration and control module, which is used to automatically control the calibration measurement of light; The fault diagnosis module is used to monitor the working status of the probe and the intelligent control system. When the fault diagnosis module detects an abnormality, it automatically sends an alarm message to the remote control center.

9. The online calibration optical probe device according to claim 1, characterized in that, The method of using the device includes the following steps: S1. When the optical transmitting probe (3) is running, it generates an optical fiber beam. Then the beam passes through the monitoring sample pipe (1) and enters the interior of the optical probe housing (4). It is received and processed by the optical fiber collimating lens group (8). The intelligent control system monitors the probe in real time when the optical probe device is running. S2. When the fault diagnosis module detects a fault in the probe's light, it sends a signal to the remote control center through the connection of the external monitoring network. Then, the remote control center sends an instruction, and the intelligent control system receives the instruction through the information transmission module and sends a signal to the light monitoring module. S3. When the light monitoring module receives the instruction, it automatically monitors the fiber beam emitted by the optical emission probe (3) and then sends the instruction to the valve control module and the pump control module, so that the valve control module controls the three-way solenoid valve (62) to open the reference solution delivery pipe (63) connection and close the nitrogen delivery pipe (64) connection. At the same time, the pump control module controls the gas-liquid pump (10) to open, so that the reference solution is delivered into the interior of the reference pool body (51) through the reference solution delivery pipe (63) and the connecting pipe (61). S4. When the reference pool body (51) is filled with reference solution, the gas-liquid pump (10) and the three-way solenoid valve (62) are all closed. At the same time, the pump control module sends a command to the calibration control module. Then the calibration control module starts to run to perform automatic fiber optic beam calibration measurement. When the light monitoring module detects that the light calibration is completed, it sends a command to the valve control module and the pump control module. At this time, the valve control module controls the opening of the nitrogen delivery pipe (64) connection and the closing of the reference solution delivery pipe (63) connection, so that the reference solution in the reference pool body (51) is transported into the collection component (11) through the waste pipe (9). At the same time, the nitrogen delivered by the nitrogen delivery pipe (64) is injected into the interior of the reference pool body (51), thereby achieving the purpose of purging the reference pool body (51) and the first reference pool window (52) and the second reference pool window (53) to clean the solution residue and impurities on the inner surface of the reference pool body (51). S5. After the internal cleaning of the reference pool body (51) is completed, the valve control module and the pump control module continue to operate to shut down the three-way solenoid valve (62) and the gas-liquid pump (10) to ensure the normal operation of the subsequent probe.

10. The online calibration optical probe device according to claim 9, characterized in that, In step S4, when the nitrogen gas has finished cleaning the inside of the feeding mechanism (6), it is necessary to perform a test to ensure that there is no reference solution or impurities remaining inside the reference tank body (51).

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