Portable device for automatically detecting micro flow for test bed and use method

Abstract

The invention discloses a portable automatic micro-flow detection device for a test bed and a use method, and the portable automatic micro-flow detection device comprises a closed collection box which is used for collecting leaked oil; a box cover is fixedly mounted above the collecting box; an adapter is installed on the upper surface of the box cover, the upper portion of the adapter extends to a detected oil leakage position through an oil pipe, an oil dripping pipe is installed below the adapter in the box cover, and the lower end of the oil dripping pipe corresponds to an oil receiving opening in the upper portion of the collecting box. A groove favorable for forming oil drops is formed below the oil dripping pipe; and an oil drop detection assembly is mounted on the upper surface of the collecting box corresponding to the oil dropping pipe and is connected with an upper computer. In conclusion, according to the device and the method, the accuracy and the efficiency of oil leakage detection are improved, the operation difficulty and the operation cost are reduced, and an efficient and reliable solution is provided for performance testing and leakage detection of the hydraulic system.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic system testing, and in particular relates to a portable device for automatically detecting micro-flow for a test bench and a use method thereof. Background Art

[0002] In various test benches for hydraulic systems, such as valve test benches, working position tests, and various cylinder performance evaluations, it is often necessary to accurately measure tiny flows. Especially in internal leakage tests, since the leakage is extremely small, it often appears in the form of dripping, which greatly challenges the resolution of traditional flow meters. Usually, these tiny flows are far below the resolution limit of the flow meter, making it impossible to accurately obtain specific data on the leakage.

[0003] At present, the methods commonly used in the industry for detecting such small flow rates are relatively primitive and have many shortcomings. A common method is to use a measuring cup to directly measure the volume of oil leaking per unit time. However, this method is not only cumbersome to operate, but also greatly affected by human factors, such as the reading error of the measuring cup and the loss caused by the oil adhering to the cup wall, which will greatly reduce the accuracy of the measurement results.

[0004] Another method is to estimate the leakage by manually counting the number of drops of oil within a certain period of time. However, this method also has significant defects: the error of manual timing is difficult to avoid, and the speed and shape of the oil droplets are affected by many factors, such as oil temperature, viscosity, pressure, etc., which greatly reduces the credibility of the estimated results.

[0005] In summary, the currently used micro-flow detection methods have obvious deficiencies in terms of ease of operation, accuracy and reliability. These deficiencies are particularly prominent when performing high-precision tests on hydraulic test benches, which seriously restricts the accuracy and reliability of the test results.

[0006] Therefore, in order to improve the accuracy and automation of the measurement of micro-flow in the hydraulic test bench, it is urgent to develop a new detection method or device. This new method or device should be able to overcome the limitations of traditional methods, achieve accurate measurement of micro-flow, and improve the convenience and efficiency of operation, providing strong support for performance testing and leakage detection of hydraulic systems. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention provides a portable device for automatically detecting micro flow for a test bench and a method for using the device.

[0008] The present invention is implemented as follows: a portable automatic device for detecting small flows for a test bench comprises a closed collecting box for collecting leaked oil; a box cover is fixedly installed above the collecting box; an adapter is installed on the upper surface of the box cover, the upper part of the adapter extends to the detected oil leakage position through an oil pipe, an oil dripping pipe is installed below the adapter in the box cover, the lower end of the oil dripping pipe corresponds to the oil receiving port on the upper part of the collecting box; a groove is provided below the oil dripping pipe to facilitate the formation of oil droplets; an oil drop detection component is installed on the upper surface of the collecting box corresponding to the position of the oil dripping pipe, and the oil drop detection component is connected to a host computer.

[0009] Further preferably, the oil droplet detection component includes a through-beam fiber optic sensor and a fiber optic amplifier, the through-beam fiber optic sensor includes a transmitting end and a receiving end, the transmitting end and the receiving end are arranged on both sides of the lower end of the oil dripping tube, so that the oil droplets can pass through the detection area of ​​the through-beam fiber optic sensor when falling, and the through-beam fiber optic sensor determines whether there are oil droplets passing through the detection area by detecting the change of the optical signal, the through-beam fiber optic sensor is connected to the fiber optic amplifier for amplifying the optical signal transmitted in the optical fiber, and the fiber optic amplifier is connected to a host computer.

[0010] Further preferably, a visual window is provided on the box cover at a position corresponding to the oil dripping pipe, or the box cover is a transparent box cover.

[0011] Further preferably, the oil dripping tube is provided with a see-through tube, and the see-through tube is fixed between the box cover and the collecting box.

[0012] Further preferably, the box cover is provided with a quick-connect connector for connecting the optical fiber amplifier and the host computer.

[0013] Further preferably, an oil drain port is provided on the side wall or the bottom plate of the collecting box, and a sealing oil plug is installed on the oil drain port.

[0014] Further preferably, a handle is provided on the upper portion of the box cover.

[0015] Further preferably, the model of the through-beam optical fiber sensor is FU-A40.

[0016] Further preferably, the model of the optical fiber amplifier is FS-N41P.

[0017] The present invention also discloses a method for using the portable automatic micro-flow detection device, which is characterized in that it specifically comprises the following steps:

[0018] S1. Device preparation and connection

[0019] S1.1, Device assembly: Ensure that all parts of the portable automatic detection device for small flow are intact, including the closed collection box, box cover, adapter, oil drop tube, oil drop detection component and host computer;

[0020] Place the collection box in a stable position and ensure that the cover is fixed on it;

[0021] Install the adapter on the upper surface of the box cover and ensure that the upper part of the adapter can extend to the oil leakage location to be detected through the oil pipe;

[0022] Install the oil dripping pipe under the adapter in the box cover, adjust the position of the oil dripping pipe so that its lower end corresponds to the oil receiving port on the upper part of the collection box, and ensure that a groove conducive to the formation of oil drops is set under the oil dripping pipe;

[0023] S1.2, installation of oil drop detection assembly: install the oil drop detection assembly on the upper surface of the collection box corresponding to the oil drop tube position; ensure that the transmitting end and the receiving end of the through-beam optical fiber sensor are arranged on both sides of the lower end of the oil drop tube so that the oil droplets can pass through the detection area when they fall; connect the through-beam optical fiber sensor to the optical fiber amplifier to amplify the optical signal transmitted in the optical fiber; finally, connect the optical fiber amplifier to the host computer to record and display the number of oil droplets;

[0024] S1.3, Pipeline connection: Fix one end of the oil pipe at the location where the oil leak is to be detected, and ensure that the connection is tight and there is no leakage; connect the other end of the oil pipe to the quick connector of the adapter, and ensure that the connection is firm and the direction is correct;

[0025] S2. Device emptying and initialization

[0026] S2.1, Emptying operation: Before starting the test, empty the entire device to ensure that there is no residual oil or impurities inside the device; during the emptying process, pay attention to whether there is oil flowing out of the collection box and the oil dripping pipe to ensure that it is completely emptied;

[0027] S2.2, Initialization settings: Turn on the host computer and enter the detection software interface; set the detection parameters and counting cycle according to actual needs; ensure that the communication connection between the host computer and the optical fiber amplifier is normal;

[0028] S3, start detection and counting:

[0029] S3.1, Start detection: When the oil droplet detection component detects oil droplets for the first time, wait for 30 seconds before the host computer starts recording; within 3-5 minutes, observe the host computer interface to ensure that the oil droplet detection component works normally and there is no abnormal alarm;

[0030] S3.2, counting operation: when the host computer reaches the preset counting cycle (1-2 minutes), it starts counting automatically; the host computer will record and display the number of oil drops in real time, and the operator can view the current counting results through the interface;

[0031] S3.3. Data recording and analysis: In a counting cycle, the host computer will automatically save the number of oil droplets; the operator can view the historical data in the host computer and analyze the trend and law of oil droplet flow.

[0032] S4. End of inspection and device maintenance

[0033] S4.1 End of detection: When the detection task is completed, close the upper computer software interface; disconnect the oil pipe and the adapter, and restore the device to the initial state;

[0034] S4.2 Device maintenance: Clean and maintain the device. When the oil in the collection box reaches the set height scale, drain the oil in the collection box.

[0035] The advantages and technical effects of the present invention are as follows: the use of the above-mentioned portable automatic detection device and method of micro-flow can significantly improve the accuracy and efficiency of oil leakage detection. The device ensures that the oil droplets can be stably and accurately detected and recorded through the coordination of precise components, such as a closed collection box, a box cover, an adapter, an oil dropper and an oil drop detection component. In the method of use, detailed steps guide the operator to quickly complete the assembly, connection, emptying, initialization and detection process of the device, greatly reducing human errors. At the same time, the real-time recording and display function of the host computer enables the operator to intuitively understand the number of oil droplets, which is convenient for timely detection of problems and taking measures. In addition, the device is also portable and easy to maintain, so that it can be flexibly used under different working conditions, and is convenient for cleaning and maintenance. In summary, the device and method not only improve the accuracy and efficiency of oil leakage detection, but also reduce the difficulty and cost of operation, and provide an efficient and reliable solution for performance testing and leakage detection of hydraulic systems, with broad application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the present invention.

[0037] In the figure, 1, collection box; 1-1, oil inlet; 1-2, sealing oil plug; 2, box cover; 2-1, handle; 3, adapter; 4, oil drip tube; 4-1, groove; 5, fiber optic amplifier; 5-1, optical fiber; 5-2, transmitting end; 5-3, receiving end; 6, upper computer communication interface; 7, perspective tube. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] See also Figure 1A portable device for automatically detecting small flow rates for a test bench includes a closed collection box 1 for collecting leaked oil. The closed design ensures that external environmental factors (such as air flow, dust, etc.) will not interfere with the collection process during the collection of oil droplets, thereby ensuring the accuracy and reliability of the collected data. A box cover 2 is fixedly installed above the collection box. The box cover provides a relatively closed and stable working environment for the oil droplet tube and the oil droplet detection assembly, reducing the impact of changes in external light, temperature, humidity, etc. on the detection accuracy. In addition, the box cover also plays a certain protective role, preventing damage to the detection device caused by accidental collision or contamination. An adapter 3 is installed on the upper surface of the box cover. The upper part of the adapter extends to the oil leakage position to be detected through the oil pipe. The design of the adapter enables the device to be easily connected to the oil leakage position to be detected, realizing a smooth transition from the oil leakage source to the oil droplet tube. The oil pipe, as a transmission medium, ensures the stability and continuity of the oil during the flow process, and provides a reliable basis for the subsequent formation and detection of oil droplets. An oil drop pipe 4 is installed below the adapter in the box cover, and the lower end of the oil drop pipe corresponds to the oil receiving port 1-1 on the upper part of the collection box. A groove 4-1 is provided below the oil drop pipe, which is conducive to the formation of oil droplets. The oil drop pipe is a key component for the formation of oil droplets. The lower end of the oil drop pipe corresponds to the oil receiving port design on the upper part of the collection box, ensuring that the oil droplets can accurately fall into the collection box. The design of the groove is conducive to the oil gathering at the lower end of the oil drop pipe and forming stable oil droplets, reducing the uncertainty and randomness in the process of oil drop formation and improving the accuracy of detection. An oil drop detection component is installed on the upper surface of the collection box corresponding to the position of the oil drop pipe. The oil drop detection component is connected to the optical fiber amplifier 5 through the optical fiber 5-1. The oil drop detection component is the core part of the device and is responsible for real-time monitoring and recording of the oil drop dripping. Through the technical means of continuous monitoring by the optical fiber sensor, the oil drop detection component can accurately capture the dripping moment of the oil drop and transmit these data to the host computer in real time for processing and analysis. This design not only improves the automation of detection, but also greatly reduces the errors and uncertainties caused by human factors. At the same time, the powerful data processing capability of the host computer enables the device to accurately count the number of oil droplets and accurately calculate the leakage amount, providing strong support for the performance test and leakage detection of the hydraulic system.

[0040] The host computer plays the role of core control and data processing, and its role is mainly reflected in the following aspects:

[0041] Data reception and processing: The host computer receives optical signal data from the optical fiber sensor through the optical fiber amplifier. These data reflect the situation of oil droplets passing through the detection area when they fall. The host computer processes the received data, such as filtering, amplification, demodulation, etc., to accurately identify the oil droplets and count their number.

[0042] Real-time display and recording: The host computer has a real-time display function, which can instantly display the number of oil drops per unit time, so that operators can intuitively understand the oil leakage situation. At the same time, the host computer can also automatically record and save these data for subsequent analysis and query.

[0043] Parameter setting and adjustment: The host computer provides a friendly human-computer interaction interface, allowing operators to set detection parameters according to actual needs, such as counting cycle, sensitivity, etc. These settings can be flexibly adjusted to meet the test requirements under different working conditions.

[0044] Automatic control and monitoring: As the control center of the entire detection system, the host computer can realize automatic control and monitoring of each hardware module. By sending control instructions, the host computer can coordinate the normal operation of each component to ensure the accuracy and stability of the detection process.

[0045] Data analysis and report generation: The host computer can also conduct in-depth analysis of the recorded data, such as calculating the average leakage, drawing leakage curves, etc. Based on these analyses, the host computer can generate detailed test reports to provide strong support for performance evaluation and leakage detection of hydraulic components and systems.

[0046] In this embodiment, the oil droplet detection component adopts the following technical scheme. The oil droplet detection component includes a through-beam optical fiber sensor and an optical fiber amplifier 5. The through-beam optical fiber sensor includes a transmitting end 5-2 and a receiving end 5-3. The transmitting end and the receiving end are arranged on both sides of the lower end of the oil dripping tube so that the oil droplets can pass through the detection area of ​​the through-beam optical fiber sensor when falling. The through-beam optical fiber sensor determines whether there are oil droplets passing through the detection area by detecting the change of the optical signal. The through-beam optical fiber sensor is connected to the optical fiber amplifier through the optical fiber 5-1 for amplifying the optical signal transmitted in the optical fiber. The optical fiber amplifier is connected to the host computer.

[0047] The oil drop detection component is the core part of this device. It adopts the advanced technical solutions of the through-beam fiber optic sensor and the fiber optic amplifier. The through-beam fiber optic sensor is cleverly arranged on both sides of the lower end of the oil drop tube to form a stable detection area, which can accurately trigger the detection when the oil drop falls. The through-beam fiber optic sensor determines whether the oil drop passes through the detection area by detecting the change of the optical signal, and has extremely high sensitivity and accuracy. The fiber optic amplifier is responsible for amplifying the optical signal transmitted in the optical fiber to ensure the strength and stability of the signal, so that the host computer can receive clear and accurate detection signals. This technical solution not only realizes the accurate and real-time detection of oil droplets, but also greatly improves the automation and convenience of detection. Through the connection with the host computer, the operator can understand the situation of oil droplets in real time, take measures to deal with it in time, and can store, query and analyze the detection data, providing comprehensive and reliable technical support for the performance test and leakage detection of the hydraulic system. This innovative technical solution makes this device have significant advantages and application value in the field of micro-flow detection of hydraulic test benches.

[0048] Preferably, a viewing window is provided on the box cover corresponding to the oil dripping pipe position or the box cover is a transparent box cover; this design enables the operator to directly observe the formation and dripping process of oil droplets under the oil dripping pipe, which is convenient for real-time monitoring of the detection status. At the same time, it also provides convenience for debugging and maintenance, and the operator can quickly confirm the working status of the oil dripping pipe and the oil drop detection component.

[0049] Further preferably, the oil dropper is provided with a transparent tube 7, which is fixed between the box cover and the collection box. The setting of the transparent tube further enhances the visibility of the oil drop detection, ensuring that the oil droplets will not be blocked during the dripping process, thereby improving the accuracy and reliability of the detection. At the same time, the transparent tube also plays a role in protecting the oil dropper and the oil drop detection component, preventing accidental collision or contamination.

[0050] Further preferably, the box cover is provided with a quick-connect connector 6 for connecting the optical fiber amplifier and the host computer. The design of the quick-connect connector makes the connection between the optical fiber amplifier and the host computer more convenient and reliable. The operator can quickly and easily complete the connection and removal of the equipment, thereby improving work efficiency. At the same time, the quick-connect connector also ensures the stability and accuracy of signal transmission.

[0051] Further preferably, the side wall or bottom plate of the collection box is provided with an oil drain port, and a sealing oil plug 1-2 is installed on the oil drain port. The setting of the oil drain port allows the oil in the collection box to be easily discharged, and it also makes the cleaning and maintenance of the collection box more convenient.

[0052] Further preferably, a handle 2-1 is provided on the upper part of the box cover. The design of the handle makes the entire device more convenient to carry and move. The operator can easily lift the device and move it to the required position for detection. This design greatly improves the portability and flexibility of the device.

[0053] Further preferably, the model of the through-beam optical fiber sensor is FU-A40.

[0054] Further preferably, the model of the optical fiber amplifier is FS-N41P

[0055] The present invention also discloses a method for using the portable automatic micro-flow detection device, which specifically comprises the following steps:

[0056] S1. Device preparation and connection

[0057] S1.1, Device assembly:

[0058] Ensure that all parts of the portable automatic micro-flow detection device are intact, including the closed collection box, box cover, adapter, oil drop tube, oil drop detection component and host computer;

[0059] Place the collection box in a stable position and ensure that the cover is fixed on it;

[0060] Install the adapter on the upper surface of the box cover and ensure that the upper part of the adapter can extend to the oil leakage location to be detected through the oil pipe;

[0061] Install the oil dripping pipe under the adapter in the box cover, adjust the position of the oil dripping pipe so that its lower end corresponds to the oil receiving port on the upper part of the collection box, and ensure that a groove conducive to the formation of oil drops is set under the oil dripping pipe;

[0062] S1.2, installation of oil drop detection assembly: install the oil drop detection assembly on the upper surface of the collection box corresponding to the oil drop tube position; ensure that the transmitting end and the receiving end of the through-beam optical fiber sensor are arranged on both sides of the lower end of the oil drop tube so that the oil droplets can pass through the detection area when they fall; connect the through-beam optical fiber sensor to the optical fiber amplifier to amplify the optical signal transmitted in the optical fiber; finally, connect the optical fiber amplifier to the host computer to record and display the number of oil droplets;

[0063] S1.3, Pipeline connection:

[0064] Fix one end of the oil pipe to the location where the oil leak is to be detected, ensuring that the connection is tight and there is no leakage; connect the other end of the oil pipe to the quick connector of the adapter, ensuring that the connection is firm and the direction is correct;

[0065] S2. Device emptying and initialization

[0066] S2.1, emptying operation:

[0067] Before starting the test, drain the entire device to ensure that there is no residual oil or impurities inside the device;

[0068] During the emptying process, pay attention to whether there is oil flowing out from the collection box and the oil dripping pipe to ensure that it is completely emptied;

[0069] S2.2, Initialization settings:

[0070] Turn on the host computer and enter the detection software interface; set the detection parameters and counting period according to actual needs (the counting period in this example is 3-5 minutes); ensure that the communication connection between the host computer and the fiber amplifier is normal;

[0071] S3, start detection and counting

[0072] S3.1. Start detection: When the oil droplet detection component detects oil droplets for the first time, the host computer starts timing after a 30s stabilization time; within 1-3 minutes, observe the host computer interface to ensure that the oil droplet detection component works normally and there is no abnormal alarm.

[0073] S3.2, counting operation:

[0074] When the host computer reaches the preset counting period (30s), it starts counting automatically;

[0075] The host computer will record and display the number of oil drops in real time, and the operator can view the current counting results through the interface.

[0076] S3.3 Data recording and analysis:

[0077] In a counting cycle, the host computer will automatically save the number of oil droplets; the operator can view the historical data in the host computer and analyze the trend and law of oil droplet flow.

[0078] S4. End of inspection and device maintenance

[0079] S4.1 End of detection: When the detection task is completed, close the upper computer software interface; disconnect the oil pipe and the adapter, and restore the device to the initial state;

[0080] S4.2 Device maintenance: Clean and maintain the device. When the oil in the collection box reaches the set height scale, drain the oil in the collection box.

[0081] The method of using the above-mentioned portable automatic device for detecting small flows has significant technical effects. First, through detailed step-by-step guidance, the operator can quickly and accurately complete the assembly, connection and initialization settings of the device, which greatly reduces the difficulty of operation and human errors. Secondly, the method of using the device ensures that oil droplets can be stably and reliably detected and recorded, improving the accuracy and efficiency of detection. At the same time, the real-time recording and display function of the host computer enables the operator to intuitively understand the number of oil droplets, which is convenient for timely detection of problems and taking corresponding measures. In summary, this method of use not only improves the accuracy and efficiency of oil leakage detection, but also enhances the operability and practicality of the device, providing strong support for performance testing and leakage detection of hydraulic systems.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable device for automatically detecting small flows for a test bench, comprising a closed collecting box for collecting leaked oil; a box cover is fixedly installed above the collecting box; an adapter is installed on the upper surface of the box cover, the upper part of the adapter extends to the detected oil leakage position through an oil pipe, and an oil dripping pipe is installed below the adapter in the box cover, the lower end of the oil dripping pipe corresponds to the oil receiving port on the upper part of the collecting box; a groove is provided below the oil dripping pipe to facilitate the formation of oil droplets; an oil drop detection component is installed on the upper surface of the collecting box corresponding to the position of the oil dripping pipe, and the oil drop detection component is connected to a host computer.

2. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: The oil droplet detection component includes a through-beam fiber optic sensor and a fiber optic amplifier. The through-beam fiber optic sensor includes a transmitting end and a receiving end. The transmitting end and the receiving end are arranged on both sides of the lower end of the oil dripping tube so that the oil droplets can pass through the detection area of ​​the through-beam fiber optic sensor when falling. The through-beam fiber optic sensor determines whether there are oil droplets passing through the detection area by detecting the change of the optical signal. The through-beam fiber optic sensor is connected to the fiber optic amplifier for amplifying the optical signal transmitted in the optical fiber. The fiber optic amplifier is connected to a host computer.

3. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: A visual window is provided on the box cover at a position corresponding to the oil dripping pipe, or the box cover is a transparent box cover.

4. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: The oil dripping pipe is sleeved with a see-through tube, which is fixed between the box cover and the collecting box.

5. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: The box cover is provided with a quick-plug connector for connecting the optical fiber amplifier and the host computer.

6. The portable device for automatically detecting micro-flow for a test bench according to claim 1 is characterized in that: An oil drain port is arranged on the side wall or the bottom plate of the collecting box, and a sealing oil plug is installed on the oil drain port.

7. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: A handle is provided on the upper portion of the box cover.

8. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: The model of the through-beam optical fiber sensor is FU-A40.

9. The portable device for automatically detecting micro flow for a test bench according to claim 1 is characterized in that: The model of the fiber amplifier is FS-N41P.

10. The method for using the portable automatic micro-flow detection device is characterized by: The specific steps include: S1. Device preparation and connection S1.1, Device assembly: Ensure that all parts of the portable automatic micro-flow detection device are intact, including the closed collection box, box cover, adapter, oil drop tube, oil drop detection component and host computer; Place the collection box in a stable position and ensure that the cover is fixed on it; Install the adapter on the upper surface of the box cover and ensure that the upper part of the adapter can extend to the oil leakage location to be detected through the oil pipe; Install the oil dripping pipe under the adapter in the box cover, adjust the position of the oil dripping pipe so that its lower end corresponds to the oil receiving port on the upper part of the collection box, and ensure that a groove conducive to the formation of oil drops is set under the oil dripping pipe; S1.2, installation of oil drop detection assembly: install the oil drop detection assembly on the upper surface of the collection box corresponding to the oil drop tube position; ensure that the transmitting end and the receiving end of the through-beam optical fiber sensor are arranged on both sides of the lower end of the oil drop tube so that the oil droplets can pass through the detection area when they fall; connect the through-beam optical fiber sensor to the optical fiber amplifier to amplify the optical signal transmitted in the optical fiber; finally, connect the optical fiber amplifier to the host computer to record and display the number of oil droplets; S1.3, Pipeline connection: Fix one end of the oil pipe to the location where the oil leak is to be detected, ensuring that the connection is tight and there is no leakage; connect the other end of the oil pipe to the quick connector of the adapter, ensuring that the connection is firm and the direction is correct; S2. Device emptying and initialization S2.1, emptying operation: Before starting the test, drain the entire device to ensure that there is no residual oil or impurities inside the device; During the emptying process, pay attention to whether there is oil flowing out from the collection box and the oil dripping pipe to ensure that it is completely emptied; S2.2, Initialization settings: Turn on the host computer and enter the detection software interface; set the detection parameters and counting cycle according to actual needs; ensure that the communication connection between the host computer and the optical fiber amplifier is normal; S3, start detection and counting S3.1, Start detection: When the oil droplet detection component detects oil droplets for the first time, wait for 30 seconds before the host computer starts recording; within 1-3 minutes, observe the host computer interface to ensure that the oil droplet detection component works normally and there is no abnormal alarm; S3.2, counting operation: When the host computer reaches the preset counting cycle, it starts counting automatically; The host computer will record and display the number of oil drops in real time, and the operator can view the current counting results through the interface; S3.3 Data recording and analysis: In a counting cycle, the host computer will automatically save the number of oil droplets; the operator can view the historical data in the host computer and analyze the trend and law of oil droplet flow. S4. End of inspection and device maintenance S4.1 End of detection: When the detection task is completed, close the upper computer software interface; disconnect the oil pipe and the adapter, and restore the device to the initial state; S4.2 Device maintenance: Clean and maintain the device. When the oil in the collection box reaches the set height scale, drain the oil in the collection box.

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