Pump aging device and control method

Abstract

The application provides a pumping aging device and a control method, and relates to the technical field of lasers.The device comprises a light-receiving structure, the light-receiving structure comprises a cavity, the cavity comprises a first sidewall, a second sidewall and a third sidewall arranged in a circumferential direction; the cavity further comprises a first end face and a second end face located at opposite ends of the first sidewall; a wavelength detection device and a light power detection device are arranged on the first end face and the second end face respectively; an out-light structure is arranged on the first sidewall, the out-light structure emits a light beam in a first direction; the second sidewall is arranged non-perpendicularly to the first direction; the second sidewall is used for reflecting the light beam emitted by the out-light structure to the third sidewall; the third sidewall is arranged at an angle with the second sidewall; a part of the light beam emitted by the out-light structure is alternately reflected between the third sidewall and the second sidewall and finally shot to the wavelength detection device of the first end face; another part of the light beam is alternately reflected between the third sidewall and the second sidewall and finally shot to the light power detection device of the second end face.

Description

Technical Field

[0001] This invention relates to the field of laser technology, and in particular to a pump aging device and control method. Background Technology

[0002] With the rapid development of optical fiber communication technology, the pump source, as the core component of optical fiber amplifier, directly affects the reliability of the entire communication system.

[0003] In existing technologies, pump source aging test devices typically employ a square cavity structure to achieve laser reflection and circulation. The specific workflow is as follows: the test fiber guides the pump laser into the square test cavity, where the laser is reflected off the inner wall to form a return optical path.

[0004] However, this square cavity structure has an inherent flaw—due to its geometric optical properties, some of the reflected light can recouple into the pump source fiber at a specific angle. When the energy of this reflected light accumulates to a critical value, it can cause fiber fusion. Especially in high-power pump testing scenarios, where the intensity of the emitted beam is high, this optical path design flaw can easily lead to fiber damage, resulting in frequent interruptions of the pump source aging test system, hindering the normal progress of aging tests, and severely affecting the efficiency and accuracy of the aging test data. Summary of the Invention

[0005] The purpose of this invention is to provide a pump aging device and control method to alleviate the technical problem that optical fibers are easily burned out in existing pump aging devices.

[0006] In a first aspect, the present invention provides a pump aging device, comprising: a light-collecting structure, the light-collecting structure including a cavity, the cavity including a first sidewall, a second sidewall and a third sidewall arranged circumferentially; the cavity further including a first end face and a second end face located at opposite ends of the first sidewall; a wavelength detection device and an optical power detection device are respectively disposed on the first end face and the second end face; A light-emitting structure is provided on the first sidewall, and the light-emitting structure emits a light beam along a first direction; The second sidewall is not perpendicular to the first direction; the second sidewall is used to reflect the light beam emitted by the light-emitting structure to the third sidewall. The third sidewall is set at an angle to the second sidewall. After the light beam emitted by the light-emitting structure is reflected by the second sidewall, a portion of the light beam is reflected alternately between the third sidewall and the second sidewall and finally shines on the wavelength detection device on the first end face; the other portion of the light beam is reflected alternately between the third sidewall and the second sidewall and finally shines on the optical power detection device on the second end face.

[0007] Furthermore, the first sidewall, the second sidewall, and the third sidewall are connected end to end in the circumferential direction.

[0008] Furthermore, the second sidewall is provided with a plurality of first light guide grooves arranged sequentially along the second direction; The second direction is parallel to the first end face and the second end face, respectively; The first light guide groove includes two first groove walls arranged in parallel, and both first groove walls are perpendicular to the second side wall.

[0009] Furthermore, the third sidewall is provided with a plurality of second light guide grooves arranged sequentially along the first direction; The second light guide groove includes two parallel second groove walls, both of which are perpendicular to the third side wall.

[0010] Furthermore, a first light-incident hole for mounting the wavelength detection device is provided on the first end face, the diameter of the first light-incident hole being 0.2 mm to 2 mm; and / or, The second end face is provided with a second light inlet hole for mounting the optical power detection device, and the diameter of the second light inlet hole is 0.2mm to 2mm.

[0011] Furthermore, the pump aging device also includes a water cooling mechanism, which is connected to the light-collecting structure and is used to dissipate heat from the light-collecting structure.

[0012] Furthermore, the light-collecting structure includes a plate that surrounds the cavity, the plate having a flow channel inside, and the plate having an inlet and an outlet that are respectively connected to the flow channel; The water cooling mechanism is connected to the inlet and outlet respectively, so that cooling water flows through the flow channel.

[0013] Furthermore, the pump aging device also includes a liquid storage tray for placing the pump source so that the coolant in the liquid storage tray comes into contact with the pump source.

[0014] Secondly, the present invention provides a control method for a pump aging device, wherein the control method performs aging tests on a pump source using the aforementioned pump aging device, comprising the following steps: Step S1. Real-time acquisition of wavelength values ​​collected by the wavelength detection device and power values ​​collected by the optical power detection device; Step S2. Calculate the wavelength shift and power attenuation within the first preset time period; Step S3. When the wavelength offset exceeds the first threshold and / or the power attenuation exceeds the second threshold, the reservoir is replenished with coolant. Step S4. After the coolant is replenished, the wavelength shift and power attenuation within the second preset time are calculated again. If the wavelength shift exceeds the first threshold and / or the power attenuation exceeds the second threshold, the pump source is determined to be at risk of failure, and an alarm is triggered or aging is terminated.

[0015] Furthermore, the pump source is powered by a power supply mechanism; a high liquid level sensor is installed in the liquid storage pan; the control method also includes a step performed after step S3: Step S31. When the high liquid level sensor is triggered, stop replenishing coolant and obtain the real-time replenishment volume; Step S32. When the real-time replenishment of coolant is greater than the normal replenishment of coolant, acquire the wavelength value of the wavelength detection device, the power value of the optical power detection device, and the voltage value of the power supply mechanism; Step S33. When the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range, the optical power detection device is tested to determine whether the optical power detection device is damaged, and / or the wavelength detection device is tested to determine whether the wavelength detection device is damaged. If the wavelength value is not within the first normal range, or the power value is not within the second normal range, or the voltage value is not within the third normal range, the pump is deemed to be at risk of failure, and an alarm is triggered or the aging process is terminated.

[0016] Furthermore, the step of detecting the optical power detection device in step S33 specifically includes the following steps: Step S331. Replace the original optical power detection device in the pump aging device one by one with multiple standard optical power detection devices; The replaced pump aging device is subjected to a test method using an optical power detection device. The optical power detection device test method includes: acquiring the wavelength value collected by the wavelength detection device, the power value of the optical power detection device, and the voltage value of the power supply mechanism; determining whether the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range. If the determination is yes, the standard optical power detection device is considered normal; if the determination is no, the standard optical power detection device is considered abnormal. Step S332. Determine whether the proportion of standard optical power detection devices with normal detection results among multiple standard optical power detection devices exceeds a predetermined proportion. If the determination is yes, ignore the abnormal liquid addition; if the determination is no, determine that the pump has a failure risk and trigger an alarm or terminate the aging process. And / or, step S333. Replace the original wavelength detection devices in the pump aging device one by one with multiple standard wavelength detection devices; The replaced pump aging device is subjected to a wavelength detection device testing method, which includes: acquiring the wavelength value collected by the wavelength detection device, the power value of the optical power detection device, and the voltage value of the power supply mechanism; determining whether the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range. If the determination is yes, the standard wavelength detection device is considered normal; if the determination is no, the standard wavelength detection device is considered abnormal. Step S334. Determine whether the proportion of standard wavelength detection devices with normal detection results among multiple standard wavelength detection devices exceeds a predetermined proportion. If the determination is yes, ignore the abnormal liquid addition; if the determination is no, determine that the pump has a risk of failure and trigger an alarm or terminate the aging process.

[0017] Furthermore, a low liquid level sensor is also installed in the liquid storage pan; when the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range, the control method further includes the following steps: When neither the low level sensor nor the high level sensor is triggered, coolant is added to the reservoir. When both the low level sensor and the high level sensor are triggered, the replenishment of coolant into the reservoir will stop.

[0018] This invention has at least the following advantages or beneficial effects: The pump aging device provided by the present invention includes: a light-collecting structure, the light-collecting structure including a cavity, the cavity including a first sidewall, a second sidewall and a third sidewall arranged circumferentially; the cavity also includes a first end face and a second end face located at opposite ends of the first sidewall; a wavelength detection device and an optical power detection device are respectively disposed on the first end face and the second end face; a light-emitting structure is disposed on the first sidewall, the light-emitting structure emitting a light beam along a first direction; the second sidewall is not perpendicular to the first direction; the second sidewall is used to reflect the light beam emitted by the light-emitting structure to the third sidewall; the third sidewall is arranged at an angle to the second sidewall, and after the light beam emitted by the light-emitting structure is reflected by the second sidewall, a portion of the light beam is alternately reflected between the third sidewall and the second sidewall and finally shines on the wavelength detection device on the first end face; the other portion of the light beam is alternately reflected between the third sidewall and the second sidewall and finally shines on the optical power detection device on the second end face.

[0019] Because the second sidewall is not perpendicular to the first direction, when the light-emitting structure emits a beam, the beam emitted along the first direction to the second sidewall will not be reflected back to the first sidewall, but rather to the third sidewall. This reduces backlighting and prevents damage to the light-emitting structure during aging tests. Due to the divergence angle of the beam, a portion of the beam will move towards the first end face, and during this movement, this portion will be alternately reflected between the second and third sidewalls, eventually striking the wavelength detection device on the first end face. The other portion of the beam will move towards the second end face, similarly reflecting alternately between the second and third sidewalls, eventually striking the optical power detection device on the first end face. During the alternating reflection between the second and third sidewalls, the beam's energy is consumed, resulting in a lower beam intensity received by the wavelength and optical power detection devices. This reduces the risk of damage to the wavelength and optical power detection devices, improving the efficiency, reliability, and data accuracy of the aging test. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a pump aging device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the aging location of one of the pump sources in the pump aging apparatus provided in an embodiment of the present invention; Figure 3 A cross-sectional view of the light-collecting structure of the pump aging device provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the removal of the first sidewall from the light-collecting structure of the pump aging apparatus provided in an embodiment of the present invention.

[0022] Icons: 100 - Light-collecting structure; 110 - First sidewall; 120 - Second sidewall; 121 - First light guide groove; 130 - Third sidewall; 131 - Second light guide groove; 140 - First end face; 150 - Second end face; 200 - Wavelength detection device; 300 - Optical power detection device; 400 - Light output structure; 410 - Optical fiber; 600 - Pump source; 700 - Power supply mechanism; 800-Accumulation tray. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figure 1As shown, the pump aging device provided by the present invention has multiple aging positions, each aging position having a light-collecting structure 100 and a liquid storage tray, and the pump source at each aging position is electrically connected to the power supply mechanism 700.

[0030] like Figures 2-4 As shown, the light-receiving structure 100 includes a cavity, which includes a first sidewall 110, a second sidewall 120, and a third sidewall 130 arranged circumferentially. The cavity may only have the first sidewall 110, second sidewall 120, and third sidewall 130 connected end-to-end in the circumferential direction. Of course, in other possible implementations, in addition to the first sidewall 110, second sidewall 120, and third sidewall 130, other sidewalls may be provided circumferentially, but the first sidewall 110, second sidewall 120, and third sidewall 130 must satisfy the following specific positional relationship.

[0031] The cavity also includes a first end face 140 and a second end face 150 located at opposite ends of the first sidewall 110, wherein the first end face 140 and the second end face 150 are arranged in parallel.

[0032] Preferably, both the first end face 140 and the second end face 150 are triangular, and the two ends of the first sidewall 110, the second sidewall 120 and the third sidewall 130 are respectively connected to the first end face 140 and the second end face 150. A wavelength detection device 200 and an optical power detection device 300 are respectively provided on the first end face 140 and the second end face 150.

[0033] like Figure 2 As shown, a light-emitting structure 400 is provided on the first sidewall 110, and the light-emitting structure 400 emits a light beam along a first direction. The light-emitting structure 400 includes a clamp and an optical fiber 410. The clamp holds and fixes the optical fiber 410 to ensure that the optical fiber 410 emits a light beam along the first direction. The other end of the optical fiber 410 is connected to the pump source 600.

[0034] like Figure 3 As shown, the second sidewall 120 is not perpendicular to the first direction, meaning the incident angle of light emitted from the light-emitting structure 400 onto the second sidewall 120 is not 0°. The second sidewall 120 can reflect the light beam emitted from the light-emitting structure 400 to the third sidewall 130 instead of returning to the first sidewall 110, thereby reducing backlight. The light beam intensity received by the second sidewall 120 is higher than that received by the third sidewall 130, and the light beam intensity received by the third sidewall 130 is higher than that received by the first sidewall 110, thus preventing damage to the light-emitting structure 400 during aging tests.

[0035] like Figure 4As shown, the third sidewall 130 and the second sidewall 120 are arranged at an angle. The light beam emitted from the light-emitting structure 400 is reflected by the second sidewall 120. A portion of the beam is then alternately reflected between the third sidewall 130 and the second sidewall 120 before finally striking the wavelength detection device 200 on the first end face 140. The other portion of the beam is also alternately reflected between the third sidewall 130 and the second sidewall 120 before finally striking the optical power detection device 300 on the second end face 150. During the alternating reflection of the beam between the second sidewall 120 and the third sidewall 130, the beam energy is consumed. The beam intensity received by the second sidewall 120 is higher than that received by the third sidewall 130, and the beam intensity received by the third sidewall 130 is higher than that received by the first end face 140 and the second end face 150. The beam intensity received by the wavelength detection device 200 and the optical power detection device 300 is relatively low, reducing the risk of damage to these devices.

[0036] like Figure 3 and Figure 4 As shown, the second sidewall 120 is provided with a plurality of first light guide grooves 121 arranged sequentially along a second direction; the second direction is parallel to the first end face 140 and the second end face 150 respectively; the first light guide groove 121 includes two parallel first groove walls, both of which are perpendicular to the second sidewall 120. The first light guide groove 121 also includes a first groove bottom surface connecting the two first groove walls, wherein the first groove bottom surface can be formed by a portion of the second sidewall 120, that is, a plurality of protrusions are spaced apart on the second sidewall 120, the surfaces of two adjacent protrusions facing each other respectively form two first groove walls, and the portion of the second sidewall 120 located between two adjacent protrusions forms the first groove bottom surface. Of course, the first light guide groove 121 can also be formed by grooving, that is, by cutting the plate forming the second sidewall 120.

[0037] When the light beam enters the first light guide groove 121, the light beam will be reflected multiple times within the two first groove walls before exiting and heading towards the third side wall 130. The multiple reflections of the light beam within the first light guide groove 121 will consume some of the light beam's energy, thereby reducing the light beam intensity and lowering the risk of damage to the wavelength detection device 200 and the optical power detection device 300.

[0038] The third sidewall 130 is provided with a plurality of second light guide grooves 131 arranged sequentially along a first direction; each second light guide groove 131 includes two parallel second groove walls, both of which are perpendicular to the third sidewall 130. The second light guide groove 131 also includes a second groove bottom surface connecting the two second groove walls. The second groove bottom surface can be formed from a portion of the third sidewall 130, i.e., a plurality of protrusions are spaced apart on the third sidewall 130, with the surfaces of two adjacent protrusions facing each other forming two second groove walls, and the portion of the third sidewall 130 located between two adjacent protrusions forming the second groove bottom surface. Alternatively, the second light guide groove 131 can be formed by grooving, i.e., by cutting the plate material forming the third sidewall 130.

[0039] Similarly, when the light beam enters the second light guide groove 131, the light beam will undergo multiple reflections within the two second groove walls before exiting and striking the second side wall 120. The multiple reflections of the light beam within the second light guide groove 131 will consume some of the light beam's energy, thereby reducing the light beam intensity and lowering the risk of damage to the wavelength detection device 200 and the optical power detection device 300.

[0040] The first end face 140 is provided with a first light entrance hole for mounting the wavelength detection device 200, and the diameter of the first light entrance hole is 0.2 mm to 2 mm. The second end face 150 is provided with a second light entrance hole for mounting the optical power detection device 300, and the diameter of the second light entrance hole is 0.2 mm to 2 mm.

[0041] Preferably, the apertures of the first and second entrance apertures are between 0.3 mm and 1 mm. The aperture range ensures both the feasibility of the process and the requirements for beam detection. After passing through the first and second entrance apertures, the beam enters the wavelength detection device 200 and the optical power detection device 300. Since the first and second entrance apertures are very small, the beam intensity entering the wavelength detection device 200 and the optical power detection device 300 is reduced, thereby reducing the risk of damage to the wavelength detection device 200 and the optical power detection device 300.

[0042] The pump aging device also includes a water cooling mechanism, which is connected to the light-collecting structure 100 and is used to dissipate heat from the light-collecting structure 100 to prevent the light-collecting structure 100 from overheating.

[0043] The light-collecting structure 100 includes a plate forming the cavity, the plate having a flow channel inside, and an inlet and an outlet respectively communicating with the flow channel on the plate; the water cooling mechanism may include a circulating water pump, which is connected to the inlet and the outlet respectively, so that cooling water flows through the flow channel.

[0044] The sheet metal is a structural component with a certain thickness. The first sidewall 110, the second sidewall 120, and the third sidewall 130 all represent the concept of surface structure, that is, they do not have thickness themselves. In this embodiment, the sheet metal forming the cavity in the circumferential direction consists of three pieces. The three pieces of sheet metal are connected end to end to form a cavity with a triangular cross-sectional shape. The faces of the three pieces of sheet metal facing the inner side of the cavity respectively form the aforementioned first sidewall 110, second sidewall 120, and third sidewall 130. Since the third sidewall 130 and the second sidewall 120 have higher heat, flow channels, water inlets, and water outlets are provided on the sheet metal forming the third sidewall 130 and the sheet metal forming the second sidewall 120 to achieve heat dissipation.

[0045] like Figure 2 As shown, the pump aging device also includes a reservoir 800, which is used to hold the pump source 600 so that the coolant in the reservoir 800 comes into contact with the pump source 600. The coolant in the reservoir 800 is used to dissipate heat from the pump source 600. When the temperature of the coolant rises, the coolant will evaporate, and the evaporation will absorb heat.

[0046] The present invention provides a control method for a pump aging device, wherein the control method performs aging tests on a pump source 600 using the aforementioned pump aging device, comprising the following steps: Step S1. Real-time acquisition of wavelength values ​​collected by wavelength detection device 200 and power values ​​of optical power detection device 300; Step S2. Calculation of wavelength offset and power attenuation within a first preset time period; Step S3. When the wavelength offset exceeds a first threshold and / or the power attenuation exceeds a second threshold, setting the liquid reservoir 800 to replenish coolant; Step S4. After replenishing the coolant, recalculating the wavelength offset and power attenuation within a second preset time period, and when the wavelength offset exceeds the first threshold and / or the power attenuation exceeds the second threshold, determining that the pump source 600 has a failure risk, and triggering an alarm or terminating the aging process.

[0047] The junction temperature of the pump source 600 can be reflected by the wavelength. Taking the gallium arsenide high-power pump source 600 as an example, the wavelength temperature drift coefficient is approximately 0.35 nm / °C, meaning that for every 1°C increase in junction temperature, the wavelength increases by 0.35 nm. Therefore, this device can comprehensively judge the state of the pump source 600 during the aging process based on power monitoring and wavelength monitoring, and automatically replenish the coolant. Taking 975 nm as an example, with an aging current of 35 A and a wavelength of 978.5 nm (normal, 978.5 ± 1.75 nm), the device contains multiple light-collecting structures 100. By switching the optical switch, the spectrum of any pump can be tested during the aging process.

[0048] If a pump source 600 is found to have a significant increase in wavelength and / or a severe decrease in power during the aging process, i.e., when the wavelength shift exceeds the first threshold and / or the power decrease exceeds the second threshold, the coolant replenishment logic is triggered, and the coolant reservoir 800 is replenished with coolant. If the wavelength does not decrease and the power does not increase after the coolant replenishment is completed, the wavelength shift and power decrease are recalculated within a second preset time period. If the wavelength shift exceeds the first threshold and / or the power decrease exceeds the second threshold, it indicates that this pump source 600 has a potential failure risk, triggering an alarm, terminating the aging process, and performing product analysis.

[0049] The device supplies power to the pump source 600 via a power supply mechanism 700; a high liquid level sensor is installed inside the liquid storage pan 800; the control method further includes a step performed after step S3: Step S31. When the high liquid level sensor is triggered, stop replenishing coolant and obtain the real-time replenishment volume.

[0050] Taking water as the coolant and a room temperature of 25℃ as an example, the evaporation rate + normal consumption rate = normal coolant replenishment rate. Normal consumption rate is determined by converting the product's thermal resistance into waste heat. Based on the specific heat capacity of water, electrical power - optical power = thermal power (heat generated per unit time * time). The normal coolant replenishment rate is obtained through model training. In other words, during the aging process, if no components are damaged, the real-time coolant replenishment rate equals the normal coolant replenishment rate.

[0051] Step S32. When the real-time replenishment of coolant is greater than the normal replenishment of coolant, acquire the wavelength value of the wavelength detection device 200, the power value of the optical power detection device 300, and the voltage value of the power supply mechanism 700.

[0052] If pump source 600 is found to have abnormal coolant addition during the aging process, with the amount of coolant added being much larger than normal, re-acquire the wavelength curve and power curve to obtain the wavelength and power values. Then, obtain the voltage value through power supply mechanism 700 to confirm whether the wavelength has increased, the power has decreased, or the voltage has increased.

[0053] Step S33. When the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range, the optical power detection device 300 is tested to determine whether the optical power detection device 300 is damaged, and / or the wavelength detection device 200 is tested to determine whether the wavelength detection device 200 is damaged.

[0054] If the wavelength value is not within the first normal range, or the power value is not within the second normal range, or the voltage value is not within the third normal range, the pump is deemed to be at risk of failure, and an alarm is triggered or the aging process is terminated.

[0055] If the wavelength, power, and voltage are all normal, the optical power detection device 300 may be damaged and needs to be tested. If any of the wavelength, power, or voltage is abnormal, the pump source 600 has a potential failure risk, triggering an alarm, terminating the aging process, and analyzing the product.

[0056] The step of detecting the optical power detection device 300 in step S33 specifically includes the following steps: Step S331. Replace the original optical power detection device 300 in the pump aging device one by one with multiple standard optical power detection devices 300; implement the optical power detection device 300 detection method on the replaced pump aging devices respectively, wherein the optical power detection device 300 detection method includes: acquiring the wavelength value collected by the wavelength detection device 200, the power value of the optical power detection device 300, and the voltage value of the power supply mechanism 700; determine whether the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range. When the determination is yes, the standard optical power detection device 300 is detected as normal; when the determination is no, the standard optical power detection device 300 is detected as abnormal. During the testing process, at least three standard optical power detection devices 300 are used. The original optical power detection device 300 is disassembled, and then the first standard optical power detection device 300 is installed. The optical power detection device 300 is then tested to determine if it is functioning correctly. The standard optical power detection device 300 is a device whose performance has been verified as qualified. The specific steps are as follows: The wavelength value collected by the wavelength detection device 200, the power value of the optical power detection device 300, and the voltage value of the power supply mechanism 700 are obtained. It is then determined whether the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range. If all three conditions are met, the first standard optical power detection device 300 is considered normal; otherwise, it is considered abnormal.

[0057] After the first standard optical power detection device 300 has been tested, remove it and replace it with the second standard optical power detection device 300. Repeat the above testing method for optical power detection devices 300, and so on, until all optical power detection devices 300 have been tested.

[0058] Step S332. Determine whether the proportion of standard optical power detection devices 300 with normal detection results exceeds a predetermined proportion among multiple standard optical power detection devices 300. If the determination is yes, ignore the abnormal liquid addition; if the determination is no, determine that the pump has a failure risk and trigger an alarm or terminate the aging process.

[0059] If the proportion of the standard optical power testing device 300 that shows a normal test result exceeds the predetermined proportion, it indicates that there is no problem within the device, and the abnormal liquid addition can be ignored, and the aging test can continue. However, if the result is negative, it indicates that there may be a problem with the pump source 600 within the device, and the aging test needs to be stopped, with further risk investigation.

[0060] The step of detecting the optical power detection device 300 in step S33 further includes the following steps: Step S333. Replace the original wavelength detection device 200 in the pump aging device one by one with multiple standard wavelength detection devices 200; implement the wavelength detection device 200 detection method on the replaced pump aging device respectively, wherein the wavelength detection device 200 detection method includes: acquiring the wavelength value collected by the wavelength detection device 200, the power value of the optical power detection device 300, and the voltage value of the power supply mechanism 700; and determining that the wavelength value is in the first... If the conditions of the power value being within the second normal range and the voltage value being within the third normal range are met, then the standard wavelength detection device 200 detects the problem as normal if the condition is met; otherwise, the standard wavelength detection device 200 detects the problem as abnormal. Step S334: Determine whether the proportion of standard wavelength detection devices 200 with normal detection results exceeds a predetermined proportion. If the condition is met, then the abnormal liquid addition is ignored; if the condition is not met, then the pump is deemed to have a failure risk, and an alarm is triggered or aging is terminated.

[0061] Steps S331-S332 and S333-S334 do not necessarily have a sequential order. Furthermore, the implementation process and principle of steps S333-S334 are the same as those of steps S331-S332, except that the optical power detection device 300 is replaced with a wavelength detection device 200. Therefore, the specific steps for detecting whether the wavelength detection device 200 is damaged will not be elaborated further.

[0062] During the testing process, the optical power detection device 300 and the wavelength detection device 200 are crucial testing components, and their accuracy directly affects the aging test results. Therefore, if any abnormalities occur during liquid replenishment, it is necessary to check whether the optical power detection device 300 and the wavelength detection device 200 are malfunctioning to ensure the normal progress of the aging test.

[0063] The liquid storage pan 800 is also equipped with a low liquid level sensor; when the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range, that is, when the pump source 600 detects normal parameters during the aging process, the control method further includes the following steps: When neither the low level sensor nor the high level sensor is triggered, the water level in the reservoir 800 is low, and coolant is added to the reservoir 800. When both the low level sensor and the high level sensor are triggered, the preset water level has been reached, and the addition of coolant to the reservoir 800 stops.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for a pump aging device, characterized in that, The control method uses a pump aging device to perform an aging test on the pump source (600). The pump aging device includes a light-collecting structure (100), which includes a cavity. The cavity includes a first sidewall (110), a second sidewall (120), and a third sidewall (130) arranged circumferentially. The cavity also includes a first end face (140) and a second end face (150) located at opposite ends of the first sidewall (110). A wavelength detection device (200) and an optical power detection device (300) are respectively disposed on the first end face (140) and the second end face (150). A light-emitting structure (400) is provided on the first sidewall (110), and the light-emitting structure (400) emits a light beam along a first direction; The second sidewall (120) is not perpendicular to the first direction; the second sidewall (120) is used to reflect the light beam emitted by the light-emitting structure (400) to the third sidewall (130). The third sidewall (130) and the second sidewall (120) are arranged at an angle. After the light beam emitted by the light-emitting structure (400) is reflected by the second sidewall (120), a part of the light beam is reflected alternately between the third sidewall (130) and the second sidewall (120) and finally shines on the wavelength detection device (200) of the first end face (140); the other part of the light beam is reflected alternately between the third sidewall (130) and the second sidewall (120) and finally shines on the optical power detection device (300) of the second end face (150). The pump aging device further includes a reservoir (800) for placing a pump source (600) so that the coolant in the reservoir (800) comes into contact with the pump source (600); The control method for the pump aging device includes the following steps: Step S1. Real-time acquisition of wavelength values ​​collected by wavelength detection device (200) and power values ​​of optical power detection device (300); Step S2. Calculate the wavelength shift and power attenuation within the first preset time period; Step S3. When the wavelength offset exceeds the first threshold and / or the power attenuation exceeds the second threshold, the reservoir (800) is replenished with coolant; Step S4. After the coolant is replenished, the wavelength offset and power attenuation within the second preset time are calculated again. When the wavelength offset exceeds the first threshold and / or the power attenuation exceeds the second threshold, it is determined that the pump source (600) has a failure risk, and an alarm is triggered or aging is terminated.

2. The control method for the pump aging device according to claim 1, characterized in that, The first sidewall (110), the second sidewall (120), and the third sidewall (130) are connected end to end in the circumferential direction.

3. The control method for the pump aging device according to claim 1, characterized in that, The second sidewall (120) is provided with a plurality of first light guide grooves (121) arranged sequentially along the second direction; the second direction is arranged parallel to the first end face (140) and the second end face (150) respectively; the first light guide groove (121) includes two first groove walls arranged in parallel, both of which are perpendicular to the second sidewall (120), so that after the light beam enters the first light guide groove (121), the light beam forms multiple reflections in the two first groove walls to consume part of the light beam's energy, thereby reducing the light beam intensity.

4. The control method for the pump aging device according to claim 1, characterized in that, The third sidewall (130) is provided with a plurality of second light guide grooves (131) arranged sequentially along the first direction; the second light guide groove (131) includes two second groove walls arranged in parallel, both of which are perpendicular to the third sidewall (130), so that after the light beam enters the second light guide groove (131), the light beam forms multiple reflections in the two second groove walls to consume part of the light beam's energy, thereby reducing the light beam intensity.

5. The control method for the pump aging device according to claim 1, characterized in that, The first end face (140) is provided with a first light entrance hole for mounting the wavelength detection device (200), and the aperture of the first light entrance hole is 0.2 mm to 2 mm; And / or, The second end face (150) is provided with a second light inlet hole for mounting the optical power detection device (300), and the aperture of the second light inlet hole is 0.2 mm to 2 mm.

6. The control method for the pump aging device according to claim 1, characterized in that, The pump aging device also includes a water cooling mechanism, which is connected to the light-collecting structure (100) and is used to dissipate heat from the light-collecting structure (100).

7. The control method for the pump aging device according to claim 6, characterized in that, The light-collecting structure (100) includes a plate that surrounds the cavity, the plate having a flow channel inside, and an inlet and an outlet respectively communicating with the flow channel on the plate. The water cooling mechanism is connected to the inlet and outlet respectively, so that cooling water flows through the flow channel.

8. The control method for the pump aging device according to claim 1, characterized in that, The pump source (600) is powered by a power supply mechanism (700); a high liquid level sensor is installed in the liquid storage pan (800); the control method further includes a step performed after step S3: Step S31. When the high liquid level sensor is triggered, stop replenishing coolant and obtain the real-time replenishment volume; Step S32. When the real-time replenishment of coolant is greater than the normal replenishment of coolant, obtain the wavelength value of the wavelength detection device (200), the power value of the optical power detection device (300), and the voltage value of the power supply mechanism (700); Step S33. When the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range, the optical power detection device (300) is tested to determine whether the optical power detection device (300) is damaged, and / or the wavelength detection device (200) is tested to determine whether the wavelength detection device (200) is damaged; If the wavelength value is not within the first normal range, or the power value is not within the second normal range, or the voltage value is not within the third normal range, the pump is deemed to be at risk of failure, and an alarm is triggered or the aging process is terminated.

9. The control method for the pump aging device according to claim 8, characterized in that, The step of detecting the optical power detection device (300) in step S33 specifically includes the following steps: Step S331. Replace the original optical power detection device (300) in the pump aging device one by one with multiple standard optical power detection devices (300). The replacement pump aging device was tested using an optical power detection device (300). The optical power detection device (300) test method includes: acquiring the wavelength value collected by the wavelength detection device (200), the power value of the optical power detection device (300), and the voltage value of the power supply mechanism (700); determining whether the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range. If the determination is yes, the standard optical power detection device (300) is considered normal; if the determination is no, the standard optical power detection device (300) is considered abnormal. Step S332. Determine whether the proportion of standard optical power detection devices (300) with normal detection results among multiple standard optical power detection devices (300) exceeds a predetermined proportion. If the determination is yes, ignore the abnormal liquid addition; if the determination is no, determine that the pump has a failure risk and trigger an alarm or terminate the aging process. And / or, step S333. Replace the original wavelength detection device (200) in the pump aging device one by one with multiple standard wavelength detection devices (200). The replacement pump aging device is subjected to a wavelength detection device (200) detection method, wherein the wavelength detection device (200) detection method includes: acquiring the wavelength value collected by the wavelength detection device (200), the power value of the optical power detection device (300), and the voltage value of the power supply mechanism (700); determining whether the wavelength value is within the first normal range, the power value is within the second normal range, and the voltage value is within the third normal range. If the determination is yes, the standard wavelength detection device (200) is detected as normal; if the determination is no, the standard wavelength detection device (200) is detected as abnormal. Step S334. Determine whether the proportion of standard wavelength detection devices (200) with normal detection results among multiple standard wavelength detection devices (200) exceeds a predetermined proportion. If the determination is yes, ignore the abnormal liquid addition; if the determination is no, determine that the pump has a risk of failure and trigger an alarm or terminate aging.

10. The control method for the pump aging device according to claim 8, characterized in that, The liquid storage pan is also equipped with a low liquid level sensor; when the wavelength value is within a first normal range, the power value is within a second normal range, and the voltage value is within a third normal range, the control method further includes the following steps: When neither the low level sensor nor the high level sensor is triggered, coolant is added to the reservoir (800); When both the low level sensor and the high level sensor are triggered, the replenishment of coolant into the reservoir (800) is stopped.

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