Electronic information engineering experimental device

Abstract

This invention relates to the field of electronic information experimental equipment technology, and more particularly to an electronic information engineering experimental device. Addressing the problem that existing electronic information engineering experimental devices lack dynamic adjustment of wiring conditions, the electronic information engineering experimental device proposed in this invention includes a test bench, an environmental simulation chamber, mounting components, a testing device, and an angle adjustment device. The environmental simulation chamber is mounted on the test bench; the mounting components are movably mounted on the test bench; the testing device is movably connected to the test bench via the mounting components; the angle adjustment device is detachably connected to the testing device. The testing device includes a test board, a light emitter, a light receiver, and a first elastic element; the angle adjustment device includes a mounting base, a fixing element, and an adjusting element. The electronic information engineering experimental device of this invention can construct a realistic wiring scenario through the angle adjustment device, allowing experimenters to intuitively observe the impact of different bend angles on signal attenuation.

Description

Technical Field

[0001] This invention relates to the field of electronic information experimental equipment technology, and in particular to an electronic information engineering experimental device. Background Technology

[0002] In the field of electronic information engineering, especially in research and teaching experiments on fiber optic communication technology, testing the transmission performance of optical fibers is a crucial step. In practical applications, optical fibers are affected by various environmental factors (such as temperature, humidity, and vibration) and physical deformations (such as bending and stretching). These factors significantly impact the transmission quality of optical signals, leading to increased loss and even communication interruptions. Therefore, simulating real-world conditions and precisely controlling test conditions in an experimental environment is key to evaluating fiber optic performance. Currently, traditional electronic information engineering experimental setups are mostly fixed structures, typically possessing only basic signal transmission and reception functions, lacking the ability to simulate complex environmental conditions and dynamically adjust the fiber optic cabling status. Especially in testing fiber bending angles, existing equipment generally suffers from the following deficiencies: First, most experimental platforms lack adjustable fiber optic bending test modules. Researchers often have to manually bend the fiber and rely on experience to judge the degree of bending, resulting in a highly subjective, poorly repeatable, and inaccurate testing process, making standardized operation difficult. Furthermore, the lack of angle quantification devices makes it impossible to accurately record and reproduce the bending angle parameters during experiments, severely impacting the scientific validity and reliability of the experimental data.

[0003] Secondly, existing testing equipment has low integration. Most test components (such as optical transmitters and receivers) are fixedly installed and their positions are not adjustable, making it difficult to adapt to the testing needs of optical fibers of different lengths or types. When it is necessary to change the test layout or replace the test object, it is often necessary to disassemble and reassemble, which is cumbersome, inefficient, and prone to causing equipment wear or loosening of connections, affecting test stability. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides an experimental device for electronic information engineering. On the one hand, through the realistic wiring scenario constructed by the angle adjustment device, the experimenter can intuitively observe the impact of different bend angles on signal attenuation. On the other hand, through the design of the installation components, the test device can be installed quickly, stably, and adjustablely on the test bench, which makes the arrangement of the test device very flexible.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This application provides an electronic information engineering experimental device, including a test bench with a display mounted on it; it also includes an environmental simulation chamber, a testing device, an installation component, and an angle adjustment device; the environmental simulation chamber is mounted on the test bench to provide various environmental conditions for the experiment; the testing device is movably connected to the test bench via the installation component for wiring and communication testing; the installation component is mounted on the test bench for mounting the testing device; the angle adjustment device is detachably connected to the testing device for adjusting the bending angle of the optical fiber to change the wiring scenario of the testing device.

[0006] Furthermore, the testing device includes a test board, an optical transmitter, and an optical receiver; the front end of the test board has multiple mounting holes, and the left and right sides have slots; the optical transmitter is disposed on one side of the test board; the optical receiver is slidably disposed on the other side of the test board, and the optical fiber is disposed between the optical transmitter and the optical receiver.

[0007] Furthermore, the testing device also includes a first elastic element disposed between the optical receiver and the test board, used to straighten the optical fiber when it is bent.

[0008] Furthermore, the mounting assembly includes two bases, a support plate, and an adjustment assembly; the two bases are detachably connected to the test bench; the support plate is disposed between the two bases for mounting the test plate; the adjustment assembly is connected to one of the bases to assist the support plate in mounting the test plate.

[0009] Furthermore, the angle adjustment device includes a mounting base, a fixing component, and an adjusting component; the mounting base is T-shaped and movably embedded in the test plate; the fixing component is located at the bottom of the mounting base, with its bottom end matching the mounting hole; the adjusting component is movably located on the mounting base and is used to change the bending angle of the optical fiber.

[0010] Furthermore, the fixing component includes a fixing buckle, a third elastic element, and a pushing element; the fixing buckle has a T-shaped structure and is slidably sleeved in the mounting base, with its end matching the mounting hole; the third elastic element is disposed between the fixing buckle and the mounting base; the pushing element is rotatably disposed on the mounting base and is used to push the fixing buckle to slide into the corresponding mounting hole during rotation.

[0011] Furthermore, the adjusting component includes a gear condition, two guide rods, two clamps, and a knob; the gear condition is slidably connected to the front end of the mounting base; both guide rods are hinged to one end of the gear condition; the two clamps are hinged to the corresponding guide rods and their ends are hinged to each other, and the rear sides of the two clamps and the two guide rods form a rhomboid structure; the knob is located on one side of the gear condition, and a gear component that meshes with the gear condition is sleeved on the knob.

[0012] Furthermore, a protractor is also provided on the tooth condition corresponding to the guide rod; an arrow is provided at the front end of the guide rod, and the arrow is located in front of the protractor.

[0013] Furthermore, the mounting base is provided with a connecting rod; both clamps are rotatably sleeved on the connecting rod.

[0014] Furthermore, the clamp includes a rectangular plate-like structure on the front side and a comb-like structure on the rear side. The rectangular plate-like structure and the comb-like structure are parallel to each other and are connected at the bottom by a connecting plate to form an integral structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In terms of fiber optic laying loss control, the realistic cabling scenario constructed by the angle adjustment device allows researchers to intuitively observe the impact of different bend angles on signal attenuation. Combined with real-time data collected by the optical power meter, the mathematical relationship between mechanical stress parameters and loss values ​​can be accurately quantified, providing a quantitative basis for optimizing engineering cabling schemes. The environmental simulation chamber design can simulate various real or extreme environmental conditions such as temperature, humidity, vibration, and electromagnetic interference. This allows researchers to test the performance stability of communication equipment (such as optical fibers and circuit boards) under different environments. This capability greatly expands the experimental scope, making test results closer to actual application scenarios, helping to identify potential problems and improve the robustness and reliability of communication systems.

[0016] 2. The rhomboid structure, consisting of two clamps and two guide rods, provides excellent geometric stability. When the knob drives the rack, the rhomboid structure ensures that the two clamps open and close synchronously and symmetrically, thus uniformly and stably clamping and adjusting the optical fiber, avoiding fiber damage or test deviation caused by unilateral force. The protractor and arrow design allows the experimenter to directly read the current bending angle from the protractor, achieving visualized and precise adjustment and avoiding errors from experience-based operation.

[0017] 3. By combining the T-slot on the test plate with the T-shaped structure of the mounting base, and through the design of the fasteners, a quick connection and secure locking between the angle adjustment device and the test plate are achieved.

[0018] 4. Through the design of the installation components, the test device can be installed quickly, stably and adjustablely on the test bench. This design makes the arrangement of the test device very flexible, greatly shortens the experimental preparation time, and improves the experimental efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the testing device in this invention; Figure 3 This is a schematic diagram of the optical fiber structure in this invention; Figure 4 This is a schematic diagram of the structure of the optical receiver in this invention; Figure 5 This is a schematic diagram of the installation components in this invention; Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the angle adjustment device in this invention; Figure 8 This is a front view of the angle adjustment device in this invention; Figure 9 This is a cross-sectional view of the angle adjustment device in this invention; Figure 10 This is a schematic diagram of the structure of the adjusting component in this invention; Figure 11 This is a schematic diagram of the fastener structure in this invention; Figure 12 This is a schematic diagram of the guide rod in this invention; Figure 13 This is a schematic diagram of the mounting base in this invention; Figure 14 This is a schematic diagram of the arrow structure in this invention; Figure 15 This is a schematic diagram of the fixture in this invention.

[0021] In the diagram: 1-Test bench; 2-Display; 3-Environmental simulation chamber; 4-Mounting components; 41-Base; 42-Support component; 421-T-block; 43-Support plate; 44-Adjustment component; 441-Adjustment rod; 442-Support rod; 443-Second elastic element; 45-Nut; 5-Test device; 51-Test plate; 511-Mounting hole; 512-T-slot; 513-Slot; 52-Light emitter; 53-Light receiver; 54-First elastic element; 541-Baffle; 55-Moving plate; 6-Angle adjustment device; 61-Mounting base; 611-Connecting rod; 62-Fixing element; 621-Fixing buckle; 622-Third elastic element; 623-Rotating rod; 624-Push block; 63-Adjusting element; 631-Gear condition; 632-Guide rod; 633-Arrow; 634-Clamp; 635-Knob; 636-Gear component; 637-Protractor; 7-Fiber optic cable. Detailed Implementation

[0022] The technical solutions in 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, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "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 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 application based on the specific circumstances.

[0025] Example 1 Combination Figure 1-15 As shown, the present invention provides an electronic information engineering experimental device, including a test bench 1, on which a display 2 is mounted; it also includes an environmental simulation chamber 3, a testing device 5, a mounting assembly 4, and an angle adjustment device 6; the environmental simulation chamber 3 is mounted on the test bench 1 to provide various environmental conditions for the experiment; the testing device 5 is movably connected to the test bench 1 via the mounting assembly 4 for wiring and communication testing; the mounting assembly 4 is mounted on the test bench 1 for mounting the testing device 5; the angle adjustment device 6 is detachably connected to the testing device 5 and is used to adjust the bending angle of the optical fiber 7 to change the wiring scenario of the testing device 5.

[0026] Specifically, the test bench 1 includes a platform and a storage cabinet located below the platform. The monitor 2 is placed on the test bench 1. The storage cabinet contains power lines, data interfaces, control circuits, etc., and is electrically connected to various functional modules. The tabletop of the test bench 1 is made of anti-static composite material with a thickness of approximately 10-20mm, and the frame is made of stainless steel. The storage cabinet is made of high-strength aluminum alloy. The dimensions of the test bench 1 are length × width × height = 800mm × 600mm × 900mm, and the platform thickness is ≥15mm. The monitor 2 connects to the internal main control board via an HDMI or LVDS interface, receives signals from the data acquisition module of the test device 5, processes them through the MCU, and outputs the visual output. The monitor 2 is made of an LCD / OLED display with touch functionality, and the casing is made of ABS engineering plastic or an aluminum alloy frame. The diagonal dimensions are 7–10 inches.

[0027] The environmental simulation chamber 3 is fixedly installed on the test bench 1, located on one side of the test area or in an enclosed configuration. It is connected to the main control system via wires and receives temperature and humidity control commands. The chamber is equipped with a heater, humidifier, fan, sensors, etc. It uses a PID control algorithm to adjust the temperature (e.g., -20℃ to +80℃) and relative humidity (20%RH to 95%RH) inside the chamber to simulate high and low temperatures, humid heat, dryness and other environmental conditions. The chamber door can be opened to facilitate the insertion / removal of test samples. Its purpose is to simulate the complex environment in real application scenarios and study the impact of environmental factors on the communication performance of fiber optic 7. The outer shell of the environmental simulation chamber 3 is made of stainless steel or sprayed steel plate, the inner liner is made of corrosion-resistant stainless steel or polytetrafluoroethylene coating, the transparent observation window is double-layered hollow tempered glass, and the inner cavity dimensions are approximately 300mm × 250mm × 200mm.

[0028] Furthermore, the testing device 5 includes a test plate 51, a light emitter 52, a light receiver 53, and a first elastic element 54; the front side of the test plate 51 has multiple mounting holes 511 for mounting the angle adjustment device 6; the left and right sides of the test plate 51 have slots 513 for connecting the mounting assembly 4; the light emitter 52 is disposed on the front side of the test plate 51 and near the left end of the test plate 51; the light emitter 52 and the light receiver 53 are located on the same horizontal line, and the optical fiber 7 is disposed between the light emitter 52 and the light receiver 53; the first elastic element 54 is disposed between the light receiver 53 and the test plate 51 and is used to straighten the optical fiber 7 when it bends.

[0029] The test board 51 serves as the mounting base for optical components, supporting the optical transmitters 52 and optical receivers 53. Its function is to provide a standardized mounting platform. It is constructed with an aluminum alloy frame, sandblasted for anti-reflective properties, and is a rectangular flat plate. The optical transmitters 52 and 53 utilize 1550nm wavelength modules, matched with three lengths (300mm, 250mm, and 200mm) of single-mode optical fiber 7. Multiple optical transmitters 52 are equidistantly and trapezoidally positioned on one side of the front end of the test board 51. They connect to the optical fiber 7 via SMA interfaces and are electrically connected to the main control system to drive LEDs or laser diodes. Their principle is to convert electrical signals into optical signals, emitting beams of specific wavelengths, providing a stable light source for testing the optical fiber 7 link. The number of optical receivers 53 corresponds to the number of optical transmitters 52, and their mounting positions are on the same horizontal line as the transmitters. The optical receivers 53 are slidably connected to the guide rails on the test board 51 via a movable plate 55. Their principle is to receive the optical signals transmitted through the optical fiber 7, convert them into electrical signals, and measure optical power to calculate transmission loss. In use, optical fibers 7 of different specifications can be connected between the corresponding optical transmitter 52 and optical receiver 53. One end of the first elastic member 54 is connected to the optical receiver 53, and the other end is connected to a baffle 541. The baffle 541 is inserted into the inner wall of the test plate 51 for mounting the first elastic member 54. The elastic members in this application are all similar to spring structures.

[0030] Furthermore, the angle adjustment device 6 includes a mounting base 61, a fixing member 62, and an adjusting member 63; the mounting base 61 is T-shaped and is movably embedded in the test plate 51; the fixing member 62 is located at the bottom of the mounting base 61, and its bottom end matches the mounting hole 511; the adjusting member 63 is movably located on the mounting base 61 and is used to change the bending angle of the optical fiber 7.

[0031] Furthermore, the test plate 51 is provided with a T-slot 512 that matches the mounting base 61; the mounting hole 511 is formed in the corresponding T-slot 512. There are multiple T-slots 512, and their positions correspond to the positions of the optical fiber 7. Furthermore, the mounting base 61 is provided with a connecting rod 611, which is used to install the adjusting component 63.

[0032] The rear end of the mounting base 61 is inserted into the T-slot 512, and the front end extends beyond the front end of the test plate 51. The front end of the mounting base 61 also has a locking block 612 aligned with the connecting rod 611 on the same vertical axis. This locking block is used to limit the movement of the adjusting member 63 (specifically, to limit the toothed condition 631 on the adjusting member 63, allowing it to slide along the axis of the locking block). The mounting base 61 also has an internal cavity structure made of aluminum alloy for fitting the fixing member 62. The fixing member 62 passes through the bottom end of the mounting base 61 and matches the mounting hole 511, used to fix the angle adjustment device 6 onto the test plate 51. The adjusting member 63 is connected to the mounting base 61 via the locking block and the connecting rod 611, used to clamp a portion of the optical fiber 7 and allow the optical fiber 7 to change angle with the adjusting member 63.

[0033] Furthermore, the fixing member 62 includes a fixing buckle 621, a third elastic member 622, and a pushing member; the fixing buckle 621 has a T-shaped structure and is slidably sleeved in the mounting base 61, with its end matching the mounting hole 511; the third elastic member 622 is disposed between the fixing buckle 621 and the mounting base 61; the pushing member is rotatably disposed on the mounting base 61 and is used to push the fixing buckle 621 to slide into the corresponding mounting hole 511 during rotation.

[0034] The pushing component includes a rotating rod 623 and a pushing block 624; the rotating rod 623 passes through the left and right sides of the mounting base 61 and is provided with a self-locking structure between it and the mounting base 61; one end of the pushing block 624 is connected to the rotating rod 623, and the other end is in contact with the fixing buckle 621.

[0035] The fixing buckle 621 consists of two cylinders with different diameters: a larger cylinder at the front and a smaller cylinder at the rear. The smaller cylinder is fitted into the mounting hole 511 and is used to elastically press into the mounting hole 511 to achieve quick locking, thus enabling the mounting base 61 to be quickly fixed and released on the test plate 51. The third elastic element 622 is sleeved on the smaller cylinder, with one end connected to the larger cylinder and the other end connected to the internal cavity of the mounting base 61. The rotating rod 623 is rotatably connected to the mounting base 61, and a self-locking mechanism is provided between the rotating rod 623 and the mounting base 61. This self-locking mechanism is prior art and will not be described in detail in this application. The push block 624 is fixedly connected to the rotating rod 623 and can rotate with the rotating rod 623. In the initial state, the third elastic element 622 is in the normal state, the fixing buckle 621 is inside the mounting base 61, and the push block 624 does not contact the fixing buckle 621. When the rotating rod 623 is rotated, the push block 624 rotates accordingly and comes into contact with the fixing buckle 621, squeezing the fixing buckle 621. The fixing buckle 621 moves backward until the small cylinder is inserted into the mounting hole 511. Specifically, the end of the push block 624 that presses against the fixing buckle 621 generates an axial thrust when rotating, causing the fixing buckle 621 to move backward.

[0036] Furthermore, the adjusting component 63 includes a gear condition 631, two guide rods 632, two clamps 634, and a knob 635; the gear condition 631 is slidably connected to the front end of the mounting base 61; both guide rods 632 are hinged to one end of the gear condition 631; the two clamps 634 are respectively hinged to the corresponding guide rods 632 and rotatably inserted into the connecting rod 611, the tops of the two clamps 634 are hinged to each other, and the rear sides of the two clamps 634 and the two guide rods 632 form a rhomboid structure; the knob 635 is located on one side of the gear condition 631, and a gear component 636 that meshes with the gear condition 631 is sleeved on the knob 635.

[0037] The toothed conditioner 631 is slidably mounted on the locking block of the mounting base 61. It has a rack on the right side, a hinge at the top, and a free end at the bottom, and is made of aluminum alloy. One end of the guide rod 632 is hinged to the hinge of the toothed conditioner 631, and the other end has a socket; it is made of stainless steel. The clamp 634 includes a rectangular plate-like structure on the front and a comb-like structure on the rear. The rectangular plate-like structure and the comb-like structure are parallel to each other and connected at the bottom by a connecting plate to form an integral structure with a certain height. Each clamp 634 is integrally formed. The groove between the rectangular plate-like structure and the comb-like structure is used to place the optical fiber 7. The angle between two clamps 634 is the bending angle of the optical fiber 7. The knob 635 is rotatably connected to the mounting base 61 via a bearing. The gear 636 meshes with the toothed conditioner 631. By rotating the knob 635, the experimenter can move the toothed conditioner 631 up and down through the gear 636, thereby displacing the hinge of the toothed conditioner 631 and simultaneously displacing the corresponding end of the guide rod 632.

[0038] Furthermore, a protractor 637 is also provided on the tooth condition 631 at a position corresponding to the guide rod 632; an arrow 633 is provided at the front end of the guide rod 632; the arrow 633 is located in front of the protractor 637.

[0039] A protractor 637 is fixedly connected to the front end of the toothed condition 631 and located in front of the hinge. The protractor 637 has graduations indicating angles. Arrow 633 is parallel to guide rod 632 and connected by a fixed rod. Arrow 633 and guide rod 632 move synchronously. By reading the angle between the two arrows 633 on the protractor 637, the bending angle of the optical fiber 7 can be determined. Its function is to significantly improve students' analytical abilities regarding practical engineering problems during optical fiber 7 laying experiments by using the angle of the protractor 637 (30°-120°) in conjunction with the loss value displayed by the optical power meter.

[0040] The specific principle of this embodiment is as follows: In use, the mounting base 61 is inserted into the T-slot 512, and then the rotating rod 623 is rotated so that the pushing block 624 pushes one end of the fixing buckle 621 to move the fixing buckle 621 backward while squeezing the third elastic member 622. Thus, the fixing buckle 621 is inserted into the mounting hole 511 and the mounting base 61 is locked on the test plate 51. The optical fiber 7 is placed into the slots of the two clamps 634. The included angle between the two clamps 634 makes the optical fiber 7 form the same included angle. When the optical fiber 7 bends, the optical receiver 53 is pulled and displaced. At the same time, the first elastic member 54 is compressed. The reaction force pushes the optical receiver 53, thereby tightening the optical fiber 7. Rotating the knob 635 causes the gear 636 to drive the gear condition 631, causing the gear condition 631 to move downward. At this time, the corresponding end of the guide rod 632, which is hinged to the gear condition 631, also moves. Since the connecting rod 611 is fixed and does not move, the clamp 634 hinged to the connecting rod 611 will not move, thus causing the guide rod 632 to move. At the same time, the included angle between the two clamps 634 becomes smaller, making the bending angle of the optical fiber 7 smaller. Similarly, rotating the knob 635 in the opposite direction can make the bending angle of the optical fiber 7 larger.

[0041] Example 2 Based on Embodiment 1, Embodiment 2 provides a specific structure for the installation component 4, which makes the testing device 5 easy to install and adjustable.

[0042] Specifically, the mounting assembly 4 includes two bases 41, two supports 42, a support plate 43, and an adjustment assembly 44; the two bases 41 are detachably connected to the test bench 1; the two supports 42 pass through the corresponding bases 41, and their ends are T-shaped blocks 421 that match the slots 513; the support plate 43 is disposed between the two supports 42 for mounting the test plate 51; the support 42 has a slot for mounting the test plate 51; the adjustment assembly 44 has an L-shaped structure, with one end connected to one of the supports 42 and the other end connected to the test plate 51, for assisting the support plate 43 in mounting the test plate 51.

[0043] Two bases 41 are detachably fixed to the test bench 1 by bolts. They are made of cast aluminum and have a height of 30-40mm. The support member 42 passes through the insertion hole of the base 41 and is locked on both sides of the base 41 by nuts 45. The support member 42 is perpendicular to the base 41. One end of the support member 42 is a T-shaped block 421, and the other end passes through the base 41. It should be noted that the insertion hole of the base 41 does not have an internal thread. When the nut 45 is loosened, the support member 42 can rotate in the insertion hole. The support member 42 is shaped as a cylindrical threaded rod body with a transverse T-shaped protrusion. The material is a stainless steel threaded rod with a T-head covered with engineering plastic. The total length is 200-250mm. The sliding connection between the support plate 43 and the support member 42 allows the support plate 43 to adapt to different distances between the support members 42 when adjusting the distance between the two bases 41. The slot on the bottom inner side of the support plate 43 matches the thickness of the test plate 51 and is wider than the width of the test plate 51. Its function is to support the test plate 51. The support plate 43 is made of aluminum alloy plate.

[0044] Furthermore, the adjustment assembly 44 includes an adjustment rod 441, a support rod 442, and a second elastic member 443; one end of the adjustment rod 441 is connected to the support member 42; one end of the support rod 442 is hinged to the other end of the adjustment rod 441, and the other end is provided with a clamping groove for connecting the test plate 51; the second elastic member 443 is disposed between the adjustment rod 441 and the support rod 442.

[0045] One end of the adjusting rod 441 is threaded to one of the support members 42, and the other end is provided with a hinge. The support rod 442 is connected to the hinge, and the clamp groove matches the test plate 51 to stabilize the test plate 51. In the normal relaxed state of the second elastic member 443, the support rod 442 and the adjusting rod 441 are perpendicular to each other.

[0046] Working principle: In use, first, pass the support member 42 through the support plate 43 and the base 41 in sequence. By adjusting the distance between the two bases 41, embed the two T-shaped blocks 421 into the slots 513 on both sides of the test plate 51. Tighten the nut 45 to fix the distance. Then, slide the test plate 51 to insert its bottom end into the slot of the support plate 43. At this time, the bottom of the test plate 51 is initially fixed. Manually adjust the support rod 442 to stretch the second elastic element 443. When the clamp slot is aligned with the test plate 51, release the support rod 442. At this time, the second elastic element 443 returns to its original position, fixing the angle of the support rod 442. Due to the hinge, the support rod 442 can only rotate in a plane parallel to the test plate 51 and cannot rotate in the front-back direction, thus supporting the test plate 51. When it is necessary to adjust the angle of the test plate 51, loosen the nut 45 to manually rotate the test plate 51, and then tighten the nut 45 to lock the angle.

[0047] Specific application examples An experimental device for electronic information engineering is mainly used in scenarios where performance testing of fiber optic 7 communication systems is required under different physical deformations and environmental conditions, such as teaching experiments in electronic information engineering at universities and performance evaluation of new fiber optic materials / devices in research institutions. The experiments that can be performed include: measuring the bending loss of fiber 7; comparing bending sensitivity at different wavelengths; modeling the relationship between bending angle and optical power attenuation; and analyzing the impact of environmental factors (temperature, humidity) on the transmission stability of fiber 7.

[0048] In use, first pass the support member 42 through the support plate 43 and the base 41 in sequence. By adjusting the distance between the two bases 41, embed the two T-shaped blocks 421 into the slots 513 on both sides of the test plate 51. Tighten the nuts 45 to fix the distance. Then slide the test plate 51 to insert the bottom end into the slot of the support plate 43. Manually adjust the support rod 442 to stretch the second elastic member 443. When the clamp slot is aligned with the test plate 51, loosen the support rod 442 to support the test plate 51. When it is necessary to adjust the angle of the test plate 51, loosen the nuts 45 to manually rotate the test plate 51, and then tighten the nuts 45 to lock the angle.

[0049] In use, insert the mounting base 61 into the T-slot 512, then rotate the rotating rod 623 so that the pushing block 624 pushes one end of the fixing buckle 621 to move the fixing buckle 621 backward and insert it into the mounting hole 511 to lock the mounting base 61 onto the test plate 51. Place the optical fiber 7 into the slots of the two clamps 634. The included angle between the two clamps 634 makes the optical fiber 7 form the same included angle. Rotate the knob 635, and the gear 636 drives the gear condition 631 to move the gear condition 631 downward. At this time, the corresponding end of the guide rod 632, which is hinged to the gear condition 631, also moves with it. The included angle between the two clamps 634 becomes smaller, so that the bending angle of the optical fiber 7 becomes smaller. Similarly, rotating the knob 635 in the opposite direction can make the bending angle of the optical fiber 7 larger.

[0050] In summary, although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic information engineering experiment device, comprising a test table (1), wherein a display (2) is arranged on the test table (1); characterized in that, Also includes: An environmental simulation chamber (3) is set on the test bench (1) to provide various environmental conditions for the experiment; The test device (5) is movably connected to the test bench (1) via the mounting component (4) and is used for wiring communication testing; Mounting component (4) is set on the test bench (1) for mounting the test device (5); An angle adjustment device (6) is detachably connected to the test device (5) and is used to adjust the bending angle of the optical fiber (7) to change the wiring scenario of the test device (5).

2. The electronic information engineering experiment apparatus according to claim 1, characterized in that, The testing device (5) includes: The test board (51) has multiple mounting holes (511) at the front end and slots (513) on the left and right sides. A light emitter (52) is disposed on one side of the test board (51); The optical receiver (53) is slidably set on the other side of the test board (51), and the optical fiber (7) is set between the optical transmitter (52) and the optical receiver (53).

3. The electronic information engineering experiment apparatus according to claim 2, characterized in that, The testing device (5) also includes: The first elastic element (54) is disposed between the optical receiver (53) and the test plate (51) to straighten the optical fiber (7) when it is bent.

4. The electronic information engineering experimental device according to claim 3, characterized in that, The installation component (4) includes: Two bases (41) are detachably connected to the test bench (1); A support plate (43) is disposed between two bases (41); used to mount the test plate (51). An adjustment component (44) is connected to one of the bases (41) for assisting the support plate (43) in mounting the test plate (51).

5. The electronic information engineering experimental device according to claim 2, characterized in that, The angle adjustment device (6) includes: Mounting bracket (61), T-shaped, is movably embedded in the test plate (51); The fastener (62) is set at the bottom of the mounting base (61), and its bottom end matches the mounting hole (511); An adjusting element (63) is movably mounted on a mounting base (61) for changing the bending angle of the optical fiber (7).

6. The electronic information engineering experimental device according to claim 5, characterized in that, The fastener (62) includes: The fixing buckle (621) has a T-shaped structure and is slidably sleeved in the mounting base (61), with its end matching the mounting hole (511); The third elastic element (622) is disposed between the fixing buckle (621) and the mounting base (61); The pusher is rotatably mounted on the mounting base (61) and is used to push the fixing buckle (621) to slide into the corresponding mounting hole (511) during rotation.

7. The electronic information engineering experimental device according to claim 6, characterized in that, The adjusting member (63) includes: The tooth condition (631) is slidably connected to the front end of the mounting base (61); Both guide rods (632) are hinged to one end of the tooth condition (631); Two clamps (634) are hinged to corresponding guide rods (632) and their ends are hinged to each other. The rear sides of the two clamps (634) and the two guide rods (632) form a rhomboid structure. A knob (635) is located on one side of the tooth condition (631), and a gear (636) that meshes with the tooth condition (631) is fitted on the knob (635).

8. The electronic information engineering experimental device according to claim 7, characterized in that, A protractor (637) is also provided on the tooth condition (631) at the position corresponding to the guide rod (632); an arrow (633) is provided at the front end of the guide rod (632), and the arrow (633) is located in front of the protractor (637).

9. The electronic information engineering experimental device according to claim 8, characterized in that, The mounting base (61) is provided with a connecting rod (611); both clamps (634) are rotatably sleeved on the connecting rod (611).

10. The electronic information engineering experimental device according to claim 9, characterized in that, The clamp (634) includes a rectangular plate structure on the front side and a comb structure on the rear side. The rectangular plate structure and the comb structure are parallel to each other and are connected at the bottom by a connecting plate to form an integral structure.

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