Mulching film polarization characteristic experiment table

Abstract

The invention discloses a mulching film polarization characteristic experiment table, and belongs to the field of unginned cotton foreign fiber removal. The experiment table comprises an experiment table main body device and an auxiliary operation device. The experiment table main body device is used for constructing a mulching film polarization characteristic research area, researching mulching film polarization characteristic parameters and determining optimal mounting positions and mounting angles of related devices; the auxiliary operation device is used for placing a power supply, a collection box, a parameter display screen and other auxiliary experiment research articles, ensuring normal work of the experiment table main body device and obtaining specific polarization characteristic related parameters. According to the present invention, the mulching film polarization characteristic research platform is constructed according to the existing mulching film polarization characteristic research requirements, and is used for determining the mulching film polarization characteristic parameters and determining the optimal mounting position and the optimal mounting angle of the key device so as to provide the basis for the subsequent seed cotton mulching film identification and cleaning device manufacturing.

Description

Technical Field

[0001] This invention belongs to the field of seed cotton foreign fiber removal, and mainly focuses on the study of the polarization characteristics of transparent or semi-transparent mulch film and the difference in polarization characteristics between mulch film and seed cotton. Specifically, it is a mulch film polarization characteristic experimental platform. Background Technology

[0002] Existing seed cleaning equipment in China has low efficiency in removing foreign fibers and cannot completely remove foreign fibers from mulch film. These foreign fibers are broken down during subsequent processing, resulting in a large number of fragmented foreign fibers in the processed cotton lint. This leads to a large number of additional yarn defects during spinning, which seriously affects the quality of the cotton lint and the yarn performance of the cotton fibers.

[0003] Currently, cotton cleaning devices for foreign fibers can be divided into seed cotton cleaning devices and lint cotton cleaning devices based on the cotton processing stage. Seed cotton cleaning devices mainly rely on mechanical winding to separate seed cotton from impurities. This method can effectively separate large impurities, but its performance in removing small foreign fiber fragments such as those from mulch film is generally poor. Currently, an electrostatic seed cotton foreign fiber cleaning device has emerged, which can remove foreign fibers within a certain range, but its effectiveness still needs improvement. Lint cotton cleaning devices mostly use image recognition to remove foreign fibers, but because foreign fiber fragments such as those from mulch film are broken during seed cotton processing, the difficulty of image detection is greatly increased, making it difficult to further improve the efficiency and accuracy of foreign fiber removal by such lint cotton cleaning devices.

[0004] Polarized light detection technology has been used to some extent in the cotton cleaning stage, but this technology is mainly combined with image recognition technology to detect transparent foreign fibers such as mulch film. Due to the fragmented distribution of foreign fibers such as mulch film, the detection effect needs to be improved and the equipment cost is relatively high. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides an experimental stage for the polarization characteristics of mulch film, specifically including the main experimental stage device (1) and an auxiliary operation device (2).

[0006] The main body of the experimental table (1) is located on the upper part of the overall experimental table. The main body of the experimental table (1) consists of a feeding inlet sealing cover (1-1), an upper box cover (1-2), a rear observation door frame (1-3), a rear observation door (1-4), a rear observation door handle (1-5), a right observation door handle (1-6), a right observation door (1-7), a right observation door frame (1-8), a front observation door frame (1-9), a front observation door (1-10), a front observation door handle (1-11), a left observation door handle (1-12), a left observation door (1-13), a left observation door frame (1-14), a rear channel side baffle (1-15), and a sample fixing device (1-1...). 6) Composed of front channel side baffle (1-17), main body outer frame (1-18), horizontal displacement platform (1-19), speed sensor (1-20), temperature sensor (1-21), sensor sleeve (1-22), sensor fixing bracket (1-23), limiting end cap (1-24), horizontal displacement platform base (1-25), channel fixing frame (1-26), channel glass (1-27), composite transmitter and receiver device (1-28), reflective transmitter and receiver device (1-29), transmissive transmitter device (1-30), transmissive receiver device (1-31), and composite receiver device (1-32);

[0007] Furthermore, the feeding inlet sealing cover (1-1) can be directly installed on the upper box cover (1-2) to provide a sealing function. The rear channel side baffle (1-15) and the front channel side baffle (1-17) are both made of transparent material, which facilitates experimental observation.

[0008] Furthermore, the sample fixing device (1-16) consists of a support frame (1-33), a limiter (1-34), a glass mounting frame (1-35), and a sample fixing glass (1-36). The sample fixing device (1-16) is directly installed on the feeding inlet sealing cover (1-1) and is used for measuring the relevant polarization parameters of static samples.

[0009] Furthermore, the horizontal displacement platform (1-19) can be moved horizontally, thereby adjusting the distance between the two horizontal displacement platforms (1-19).

[0010] Furthermore, the composite transmitter and receiver device (1-28) consists of a support rod (1-37), a horizontal displacement adjustment rod (1-38), a sliding member (1-39), a rotary adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjuster (1-45).

[0011] Furthermore, the horizontal displacement adjusting rod (1-38) is used to adjust the horizontal position, the rotation adjuster (1-40) is used to adjust the rotation angle, the sliding member (1-39) is used to adjust the vertical position, the laser equipment holder (1-43) is used to fix the laser emitter (1-42) or the laser receiver (1-44), the laser receiver (1-44) is used to receive the laser, and the micro-adjuster (1-45) is used to manually adjust a small amount of rotation angle.

[0012] Furthermore, the composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) are all composed of a support rod (1-37), a horizontal displacement adjustment rod (1-38), a sliding member (1-39), a rotation adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjuster (1-45).

[0013] Furthermore, the composite transmitter and receiver device (1-28) includes one laser transmitter (1-42), one laser receiver (1-44), two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment fixers (1-43), and two micro-adjusters (1-45).

[0014] Furthermore, the reflective transmitting and receiving device (1-29) includes one laser transmitter (1-42), one laser receiver (1-44), two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment fixers (1-43), and two micro-adjusters (1-45).

[0015] Furthermore, the transmissive emitting device (1-30) includes one laser emitter (1-42), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45).

[0016] Furthermore, the transmissive receiving device (1-31) includes one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45).

[0017] Furthermore, the composite receiving device (1-32) includes one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45).

[0018] Furthermore, each of the composite transmitter / receiver device (1-28), the reflective transmitter / receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) is provided in pairs to ensure that the laser emission and reception coverage meet the experimental requirements.

[0019] Furthermore, the auxiliary operation device (2) is located in the lower half of the overall experimental platform and consists of a right sealing plate (2-1), an operation table frame (2-2), a parameter display screen (2-3), a power supply integrated box (2-4), a left sealing plate (2-5), an auxiliary operation device outer frame (2-6), and a cotton collection box (2-7).

[0020] Furthermore, the parameter display screen (2-3) is used to display the measured parameters and curves, the power supply integrated box (2-4) is used to provide power to the composite transmitter and receiver device (1-28), the reflective transmitter and receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), the composite receiver device (1-32), and the parameter display screen (2-3), and the cotton collection box (2-7) is used to collect samples that fall during the experiment.

[0021] Furthermore, the composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the relative vertical height and relative angle between the laser transmitter (1-42) or the laser receiver (1-44) and the horizontal displacement platform (1-19) according to experimental requirements. With the horizontal surface of the horizontal displacement platform (1-19) as the reference plane, the relative vertical height adjustment range is 58mm to 520mm, and the relative angle is -90° to 90°.

[0022] Furthermore, the composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the horizontal relative distance between the laser transmitter (1-42) or the laser receiver (1-44) and the channel glass (1-27) according to experimental requirements, with an adjustment range of 5 mm to 121 mm.

[0023] Furthermore, the channel glass (1-27) can be adjusted in width according to experimental requirements, with an adjustment range of 50 mm to 300 mm.

[0024] Furthermore, the sample fixing device (1-16) can be adjusted relative to the feeding inlet sealing cap (1-1) according to experimental requirements, with an adjustment range of 10 mm to 660 mm.

[0025] This invention provides an experimental platform for the polarization characteristics of mulch films. It has the following advantages:

[0026] Based on the existing research needs on the polarization characteristics of mulch film, this invention constructs an experimental platform for studying the polarization characteristics of mulch film. It designs three combinations of laser emitting and receiving devices—composite, reflective, and transmissive—for different experimental environments. While measuring the polarization characteristic parameters of the mulch film, it also determines the optimal laser emitting and receiving combination. Simultaneously, the experimental platform is designed with mechanisms for adjusting horizontal displacement, vertical height, and rotation angle, which can be used to determine the optimal installation position and angle of key devices to ensure the stability and efficiency of cotton mulch film identification, providing a foundation for the subsequent manufacturing of cotton mulch film identification and removal devices. Attached Figure Description

[0027] Figure 1 This is a main structural diagram of the present invention;

[0028] Figure 2 This is an isometric view of the present invention;

[0029] Figure 3 This is an isometric view of the main experimental platform of the present invention;

[0030] Figure 4 This is an isometric view of the auxiliary operating device of the present invention;

[0031] Figure 5 This is a structural diagram of the upper box cover and connecting device of the present invention;

[0032] Figure 6 This is a diagram showing the internal structure of the main experimental platform of the present invention.

[0033] Figure 7 This is a diagram of the key internal components of the main experimental platform of the present invention;

[0034] Figure 8 This is a structural diagram of the sample fixing device of the present invention;

[0035] Figure 9 This is a structural diagram of the composite transmitter and receiver device of the present invention.

[0036] Figure label:

[0037] The main components of the experimental platform include: (1) the feeding inlet sealing cover (1-1), the upper box cover (1-2), the rear observation door frame (1-3), the rear observation door (1-4), the rear observation door handle (1-5), the right observation door handle (1-6), the right observation door (1-7), the right observation door frame (1-8), the front observation door frame (1-9), the front observation door (1-10), the front observation door handle (1-11), the left observation door handle (1-12), the left observation door (1-13), and the left observation door frame. (1-14) Rear channel side baffle (1-15) Sample fixing device (1-16) Front channel side baffle (1-17) Main device outer frame (1-18) Horizontal displacement platform (1-19) Speed ​​sensor (1-20) Temperature sensor (1-21) Sensor sleeve (1-22) Sensor fixing bracket (1-23) Limiting end cap (1-24) Horizontal displacement platform base (1-25) Channel fixing frame (1-26) Glass (1-27), Composite transmitter and receiver (1-28), Reflective transmitter and receiver (1-29), Transmitter transmitter (1-30), Transmitter receiver (1-31), Composite receiver (1-32), Support frame (1-33), Limiter (1-34), Glass mounting frame (1-35), Sample fixing glass (1-36), Support rod (1-37), Horizontal displacement adjustment rod (1-38), Sliding part (1-39), Rotary adjuster (1-40), Support base (1-41), Laser transmitter (1-42), Laser equipment holder (1-43), Laser receiver (1-44), Micro-adjuster (1-45), Auxiliary operation device (2), Right sealing plate (2-1), Operating table (2-2), Parameter display screen (2-3), Power supply integrated box (2-4), Left sealing plate (2-5), Auxiliary operation device outer frame (2-6), Cotton collection box (2-7). Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The preferred embodiments of the present invention are merely illustrative and not intended to limit the invention to any particular form or implementation. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] Example

[0040] See attached document Figures 1 to 9 This embodiment includes the main experimental platform (1) and the auxiliary operation device (2).

[0041] like Figures 1 to 3 , Figures 5 to 7The main body of the experimental table (1) is located on the upper part of the overall experimental table; the main body of the experimental table (1) consists of a feeding inlet sealing cover (1-1), an upper box cover (1-2), a rear observation door frame (1-3), a rear observation door (1-4), a rear observation door handle (1-5), a right observation door handle (1-6), a right observation door (1-7), a right observation door frame (1-8), a front observation door frame (1-9), a front observation door (1-10), a front observation door handle (1-11), a left observation door handle (1-12), a left observation door (1-13), a left observation door frame (1-14), a rear channel side baffle (1-15), and a sample fixing device (1-1... 6) The device consists of a front channel side baffle (1-17), a main body outer frame (1-18), a horizontal displacement platform (1-19), a speed sensor (1-20), a temperature sensor (1-21), a sensor sleeve (1-22), a sensor fixing bracket (1-23), a limiting end cap (1-24), a horizontal displacement platform base (1-25), a channel fixing frame (1-26), a channel glass (1-27), a composite transmitter-receiver device (1-28), a reflective transmitter-receiver device (1-29), a transmissive transmitter device (1-30), a transmissive receiver device (1-31), and a composite receiver device (1-32). The horizontal displacement platform (1-19) can move horizontally, thereby adjusting the distance between two horizontal displacement platforms (1-19), with an adjustment range of 50mm to 300mm.

[0042] like Figure 5 As shown, the feeding inlet sealing cover (1-1) can be directly installed on the upper box cover (1-2) to provide a sealing function. The rear channel side baffle (1-15) and the front channel side baffle (1-17) are both made of transparent material, which facilitates experimental observation.

[0043] like Figure 8 As shown, the sample fixing device (1-16) consists of a support frame (1-33), a limiter (1-34), a glass mounting frame (1-35), and a sample fixing glass (1-36). The sample fixing device (1-16) is directly installed on the feeding inlet sealing cover (1-1) and is used for measuring the relevant polarization parameters of static samples.

[0044] The sample fixing device (1-16) can be adjusted relative to the feeding inlet sealing cap (1-1) according to experimental requirements, with an adjustment range of 10mm to 660mm;

[0045] like Figure 7 As shown, there are two of each of the composite transmitter / receiver device (1-28), the reflective transmitter / receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) to ensure that the laser emission and reception coverage meet the experimental requirements.

[0046] like Figure 9 As shown, the composite transmitter-receiver device (1-28) consists of a support rod (1-37), a horizontal displacement adjusting rod (1-38), a sliding member (1-39), a rotation adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjustment (1-45). The horizontal displacement adjusting rod (1-38) is used to adjust the horizontal position, the rotation adjuster (1-40) is used to adjust the rotation angle, the sliding member (1-39) is used to adjust the vertical position, the laser equipment holder (1-43) is used to fix the laser transmitter (1-42) or the laser receiver (1-44), the laser receiver (1-44) is used to receive laser light, and the micro-adjustment (1-45) is used to manually adjust a small amount of rotation angle.

[0047] like Figure 7 , Figure 9As shown, the composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) are all composed of a support rod (1-37), a horizontal displacement adjustment rod (1-38), a sliding member (1-39), a rotation adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjuster (1-45). Among them, the composite transmitter-receiver device (1-28) contains one laser transmitter (1-42) and one laser receiver (1-44), and two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment holders (1-43), and two micro-adjusters (1-45); the reflective transmitter-receiver device (1-29) contains one laser transmitter (1-42) and one laser receiver (1-44), and two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment holders (1-43), and two micro-adjusters (1-45); the transmissive transmitter device (1-30) contains one laser transmitter (1-42), and two water... One horizontal displacement adjusting rod (1-38), one sliding part (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45); one transmission-type receiving device (1-31) contains one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding part (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45); one composite receiving device (1-32) contains one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding part (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45).

[0048] The composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the relative vertical height and relative angle between the laser transmitter (1-42) or the laser receiver (1-44) and the horizontal displacement platform (1-19) according to experimental requirements. With the horizontal surface of the horizontal displacement platform (1-19) as the reference plane, the relative vertical height adjustment range is 58mm to 520mm, and the relative angle is -90° to 90°.

[0049] The composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the horizontal relative distance between the laser transmitter (1-42) or the laser receiver (1-44) and the channel glass (1-27) according to experimental requirements, with an adjustment range of 5 mm to 121 mm;

[0050] like Figure 4 As shown, the auxiliary operation device (2) consists of a right sealing plate (2-1), an operation stand (2-2), a parameter display screen (2-3), a power supply integrated box (2-4), a left sealing plate (2-5), an auxiliary operation device outer frame (2-6), and a cotton collection box (2-7). The parameter display screen (2-3) is used to display the measured parameters and curves. The power supply integrated box (2-4) is used to provide power to the composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), the composite receiver device (1-32), and the parameter display screen (2-3). The cotton collection box (2-7) is used to collect samples that fall during the experiment.

[0051] Working principle: Before using the equipment, open the rear observation door (1-4), right observation door (1-7), front observation door (1-10), and left observation door (1-13). Remove the sample fixing glass (1-36) from one side of the sample fixing device (1-16). Place the sample into the cavity according to the experimental requirements, install the sample fixing glass (1-36), loosen the limiter (1-34), and adjust the relative distance between the feeding inlet sealing cap (1-1) and the glass mounting frame (1-35) according to the experimental requirements. According to the experimental variable requirements, loosen the limiting end cap (1-24), move the horizontal displacement platform (1-19), adjust the distance between the two channel glass (1-27) to the required distance, and fix the limiting end cap (1-24). According to the location of the sample, adjust the installation position angle of the laser emitter (1-42) and laser receiver (1-44). Taking the composite transmitter-receiver device (1-28) as an example: First, adjust the position of the slider (1-39) to determine the height of the laser transmitter (1-42) and laser receiver (1-44). Then, rotate the rotary adjuster (1-40) to adjust the angle. After that, according to the experimental variable requirements, move the horizontal displacement adjustment rod (1-38) to make the laser transmitter (1-42) and laser receiver (1-44) reach the appropriate position. Finally, based on the actual situation, determine whether a fine adjustment is needed. If there is still a small misalignment between the laser transmitter (1-42) or laser receiver (1-44) and the sample, slightly rotate the fine adjustmenter (1-45) to ensure that the final position of the laser transmitter (1-42) or laser receiver (1-44) meets the experimental requirements. If adjusting the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32), the adjustment method is the same as that of the composite transmitter-receiver device (1-28). Close the rear observation door (1-4), right observation door (1-7), front observation door (1-10), and left observation door (1-13). Turn on the parameter display screen (2-3), adjust the laser intensity of the laser emitter (1-42), and record the relevant parameters. After completion, if it is necessary to adjust the position of the device or change the sample, the main power supply must be turned off before continuing the experiment.

[0052] For ease of description, the spatial relative terms used herein, such as "front," "back," "left," "right," "horizontal," and "vertical," are used to describe the relative spatial position of a device or feature with other devices and features. It should be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation described in the figures. Therefore, the device described in this invention can also be positioned in other different ways.

Claims

1. An experimental stage for the polarization characteristics of a geomembrane, characterized in that: It includes the main experimental platform (1) and auxiliary operating devices (2); The main body of the experimental table (1) is located on the upper part of the overall experimental table. The main body of the experimental table (1) consists of a feeding inlet sealing cover (1-1), an upper box cover (1-2), a rear observation door frame (1-3), a rear observation door (1-4), a rear observation door handle (1-5), a right observation door handle (1-6), a right observation door (1-7), a right observation door frame (1-8), a front observation door frame (1-9), a front observation door (1-10), a front observation door handle (1-11), a left observation door handle (1-12), a left observation door (1-13), a left observation door frame (1-14), a rear channel side baffle (1-15), and a sample fixing device (1-1...). 6) Composed of front channel side baffle (1-17), main body outer frame (1-18), horizontal displacement platform (1-19), speed sensor (1-20), temperature sensor (1-21), sensor sleeve (1-22), sensor fixing bracket (1-23), limiting end cap (1-24), horizontal displacement platform base (1-25), channel fixing frame (1-26), channel glass (1-27), composite transmitter and receiver device (1-28), reflective transmitter and receiver device (1-29), transmissive transmitter device (1-30), transmissive receiver device (1-31), and composite receiver device (1-32); The auxiliary operation device (2) is located in the lower half of the overall experimental platform. The auxiliary operation device (2) consists of a right sealing plate (2-1), an operation table frame (2-2), a parameter display screen (2-3), a power supply integrated box (2-4), a left sealing plate (2-5), an auxiliary operation device outer frame (2-6), and a cotton collection box (2-7).

2. The experimental stage for the polarization characteristics of a geomembrane according to claim 1, characterized in that, The feeding inlet sealing cover (1-1) can be directly installed on the upper box cover (1-2) to provide a sealing function. The upper box cover (1-2), rear observation door frame (1-3), right observation door frame (1-8), front observation door frame (1-9), and left observation door frame (1-14) are all connected to the outer frame of the main device (1-18) by screws. The rear observation door frame (1-3), right observation door frame (1-8), front observation door frame (1-9), and left observation door frame (1-14) are respectively connected to the rear observation door (1-18). 1-4) The right observation door (1-7), the front observation door (1-10), and the left observation door (1-14) are connected by pins and can rotate, which facilitates the sealing of the device and observation. The rear observation door (1-4), the right observation door (1-7), the front observation door (1-10), and the left observation door (1-14) are respectively connected to the rear observation door handle (1-5), the right observation door handle (1-6), the front observation door handle (1-11), and the left observation door handle (1-12) by bolts. The rear channel side baffle (1-15), the front channel side baffle (1-17), and the upper box cover (1-2) are connected by bolts. The rear channel side baffle (1-15) and the front channel side baffle (1-17) are both made of transparent material, which facilitates experimental observation. The sample fixing device (1-16) is directly installed on the feeding inlet sealing cover (1-1) and is used for measuring the polarization parameters of static samples. The main body outer frame (1-18) is connected to the sensor fixing bracket (1-23) and the horizontal displacement platform base (1-25) by bolts. The horizontal displacement platform (1-19) and the horizontal displacement platform base (1-25) are fixed by a limiting end cap (1-24) to ensure that the horizontal displacement platform (1-19) can move horizontally. The distance between the two horizontal displacement platforms (1-19) can be adjusted. The speed sensor (1-20) and temperature sensor (1-21) can both be installed on the sensor sleeve (1-22). The sensor sleeve (1-22) is connected to the sensor fixing bracket (1-23) by bolts. The channel fixing frame (1-26) is connected to the horizontal displacement platform (1-19) by... The connection is made by welding. The channel fixing frame (1-26) is used to clamp and fix the channel glass (1-27). The channel glass (1-27) is used to ensure the passage of laser. The composite transmitter and receiver (1-28), the reflective transmitter and receiver (1-29), the transmissive transmitter (1-30), the transmissive receiver (1-31), and the composite receiver (1-32) are all connected to the horizontal displacement platform (1-19) by bolts. There are two of each of the composite transmitter and receiver (1-28), the reflective transmitter and receiver (1-29), the transmissive transmitter (1-30), the transmissive receiver (1-31), and the composite receiver (1-32) to ensure that the laser emission and reception coverage meets the experimental requirements. The right sealing plate (2-1), operating table (2-2), and left sealing plate (2-5) are all connected to the outer frame of the operating device (2-6) by bolts. The parameter display screen (2-3) is directly installed on the operating table (2-2) to display the measured parameters and curves. The power supply box (2-4) and cotton collection box (2-7) are placed inside the outer frame of the operating device (2-6) without being fixedly connected. The power supply box (2-4) is used to provide power to the composite transmitter and receiver device (1-28), the reflective transmitter and receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), the composite receiver device (1-32), and the parameter display screen (2-3). The cotton collection box (2-7) is used to collect samples that fall during the experiment.

3. The experimental stage for the polarization characteristics of a geomembrane according to claim 1, characterized in that, The sample fixing device (1-16) consists of a support frame (1-33), a limiter (1-34), a glass mounting frame (1-35), and a sample fixing glass (1-36). The support frame (1-33) and the limiter (1-34) are fixedly connected by bolts, and their relative distance can be adjusted according to experimental requirements. The support frame (1-33) is used to ensure that the experimental sample is suspended in the air. The limiter (1-34) is used to adjust the relative position of the feeding inlet sealing cap (1-1) and the support frame (1-33). The glass mounting frame (1-35) is connected to the support frame (1-33) by bolts. The glass mounting frame (1-35) installs the sample fixing glass (1-36) to restrict the spatial position of the sample. The composite transmitter and receiver device (1-28) consists of a support rod (1-37), a horizontal displacement adjustment rod (1-38), a sliding component (1-39), a rotary adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjuster (1-45). The support rod (1-37) and the support base (1-41) are connected by bolts. The horizontal displacement adjusting rod (1-38) and the rotary adjuster (1-40) are fixed by bolts. The horizontal displacement adjusting rod (1-38) is used to adjust the horizontal position, and the rotary adjuster (1-40) is used to adjust the rotation angle. The sliding member (1-39) and the support rod (1-37) are fixed by bolts. The sliding member (1-39) is used to adjust the vertical position. The sliding member (1-39) and the rotary adjuster (1-40) are fixed by bolts. The support base (1-41) and the horizontal displacement adjusting rod (1-38) are fixed by bolts. The moving platform (1-19) is fixed with bolts. The laser emitter (1-42) is used to emit laser light. The laser equipment holder (1-43) is fixed to the laser emitter (1-42) and the laser receiver (1-44) with bolts. The laser equipment holder (1-43) is used to fix the laser emitter (1-42) or the laser receiver (1-44). The laser receiver (1-44) is used to receive laser light. The micro-adjustment (1-45) is connected to the laser equipment holder (1-43) with bolts. The micro-adjustment (1-45) is used to manually adjust a small rotation angle.

4. The experimental stage for the polarization characteristics of a geomembrane according to claim 1, characterized in that, The composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) are all composed of a support rod (1-37), a horizontal displacement adjustment rod (1-38), a sliding component (1-39), a rotary adjuster (1-40), a support base (1-41), a laser transmitter (1-42), a laser equipment holder (1-43), a laser receiver (1-44), and a micro-adjuster (1-45). The composite transmitter and receiver device (1-28) includes one laser transmitter (1-42), one laser receiver (1-44), two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment fixers (1-43), and two micro-adjusters (1-45). The reflective transmitting and receiving device (1-29) includes one laser transmitter (1-42), one laser receiver (1-44), two horizontal displacement adjusting rods (1-38), two sliding parts (1-39), two rotary adjusters (1-40), two laser equipment fixers (1-43), and two micro-adjusters (1-45). The transmission-type emitting device (1-30) includes one laser emitter (1-42), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45); The transmissive receiving device (1-31) includes one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment holder (1-43), and one micro-adjuster (1-45); The composite receiving device (1-32) includes one laser receiver (1-44), one horizontal displacement adjusting rod (1-38), one sliding member (1-39), one rotary adjuster (1-40), one laser equipment fixer (1-43), and one micro-adjuster (1-45).

5. The experimental stage for the polarization characteristics of a geomembrane according to claim 1, characterized in that, The composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the relative vertical height and relative angle between the laser transmitter (1-42) or the laser receiver (1-44) and the horizontal displacement platform (1-19) according to experimental requirements. With the horizontal surface of the horizontal displacement platform (1-19) as the reference plane, the relative vertical height adjustment range is 58 mm to 520 mm, and the relative angle is -90° to 90°. The composite transmitter-receiver device (1-28), the reflective transmitter-receiver device (1-29), the transmissive transmitter device (1-30), the transmissive receiver device (1-31), and the composite receiver device (1-32) can all freely adjust the horizontal relative distance between the laser transmitter (1-42) or the laser receiver (1-44) and the channel glass (1-27) according to experimental requirements, with an adjustment range of 5 mm to 121 mm; The channel glass (1-27) can be adjusted in width according to experimental requirements, with an adjustment range of 50 mm to 300 mm; The sample fixing device (1-16) can be adjusted relative to the feeding inlet sealing cap (1-1) according to experimental requirements, with an adjustment range of 10 mm to 660 mm.

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