Accurate measurement and analysis system for bite force of termites

Abstract

The utility model discloses a termite occlusal force accurate measurement and analysis system, which belongs to the technical field of biomechanical measurement and comprises an occlusal force test module, the occlusal force test module comprises an upper occlusal sheet and a lower occlusal sheet, the lower occlusal sheet is arranged on a base, the base is rotatably connected with a balance plate, one end of the balance plate is connected with the upper occlusal sheet, and the other end of the balance plate is connected with the lower occlusal sheet. The distance between the connecting point of the force sensor and the balance plate and the rotating point of the balance plate is smaller than the distance between the connecting point of the upper meshing piece and the balance plate and the rotating point of the balance plate. The termite fixing module comprises a moving platform located on one side of the base, and the moving platform is used for fixing termites and adjusting the positions of the termites; the observation module is arranged on one side of the base and used for collecting the biting behavior of the termites in real time. According to the utility model, the occlusal force of the upper occlusal sheet is multiplied and transmitted to the force sensor, so that the extraction of micro force values is realized, and meanwhile, the functions of high-precision force measurement and synchronous behavior observation are realized.

Description

Technical Field

[0001] This utility model relates to the field of biomechanical measurement technology, and in particular to a precise measurement and analysis system for termite biting force. Background Technology

[0002] Termites are a major global pest, causing enormous economic losses to buildings, forests, and crops every year. As a carnivorous insect, the biting force of termites is a key indicator of their destructive power. Assessing the extent of termite damage, studying their biological characteristics, and developing control technologies are of significant scientific and practical value.

[0003] Current technologies typically use general-purpose force sensors to test animal bite force. However, termite bite force is generally in the millinewtons (mN) range, far lower than that of common insects. General-purpose force sensors are mostly designed to measure larger force values, and their sensitivity is insufficient to meet the high-precision measurement requirements for such small force values. Furthermore, existing bite force measurement devices cannot achieve simultaneous measurement and behavioral observation, making it difficult to correlate mechanical data with specific bite behaviors.

[0004] To address this, a precise measurement and analysis system for termite biting force is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a precise measurement and analysis system for termite biting force, which aims to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a precise measurement and analysis system for termite biting force, comprising:

[0007] The bite force testing module includes an upper bite plate and a lower bite plate. The lower bite plate is disposed on a base, and a balance plate is rotatably connected to the base. One end of the balance plate is connected to the upper bite plate, and a vertically arranged force sensor is connected between the other end of the balance plate and the base. The distance from the connection point of the force sensor and the balance plate to the rotation point of the balance plate is smaller than the distance from the connection point of the upper bite plate and the balance plate to the rotation point of the balance plate.

[0008] The termite fixing module includes a movable platform located on one side of the base, which is used to fix termites and adjust their position.

[0009] An observation module is installed on one side of the base, with its acquisition end aligned with the termite's mouthparts to collect real-time data on the termite's biting behavior.

[0010] Preferably, both the upper and lower occlusive plates protrude from one side of the base, a support rod is fixedly connected to the base, a sliding hole is provided on the balance plate, the support rod passes through the sliding hole and is rotatably connected to the sliding hole, and the distance from the connection point of the force sensor and the balance plate to the sliding hole is less than the distance from the connection point of the upper occlusive plate and the balance plate to the sliding hole.

[0011] Preferably, the weight of the balance plate from the end near the force sensor to the sliding hole is equal to the weight of the balance plate from the end near the upper engagement piece to the sliding hole.

[0012] Preferably, the balance plate and the force sensor are connected by a connector, the connector including a first screw, the first screw being rotatably connected to the balance plate, and the top of the housing of the force sensor having a threaded hole, the first screw being threadedly connected to the threaded hole.

[0013] Preferably, the mobile platform includes a horizontal base, a support rod is fixedly connected to the horizontal base, a lifting component is provided on the support rod, a support platform is fixedly connected to the lifting end of the lifting component, and double-sided tape is adhered to the support platform for fixing the abdomen of the termite.

[0014] Preferably, a transparent pressure sheet is fixedly attached to the support platform, the transparent pressure sheet is disposed opposite to the double-sided adhesive, and the termite is located between the double-sided adhesive and the transparent pressure sheet.

[0015] Preferably, the upper occlusal plate and the lower occlusal plate are made of stainless steel or titanium alloy, with a thickness between 0.05 mm and 0.2 mm.

[0016] Preferably, the observation module includes an image acquisition device, a lighting system, and a display device. The image acquisition device includes an industrial camera, the lighting system includes an LED ring light source, and the display device includes a high-definition display screen. The LED ring light source is installed around the lens of the industrial camera. The industrial camera is electrically connected to the high-definition display screen via an HDMI cable, and the lens of the industrial camera is aimed at the mouthparts of the termite.

[0017] This utility model discloses the following technical effects: Since the distance between the connection point of the force sensor and the balance plate and the rotation point of the balance plate is smaller than the distance between the connection point of the upper biting plate and the balance plate and the rotation point of the balance plate, a lever structure is formed. When termites bite the upper biting plate and the lower biting plate, the biting force on the upper biting plate will be transmitted to the force sensor in multiples, amplifying and measuring the biting force, realizing the extraction of minute force values, and realizing the functions of high-precision force measurement and synchronous behavior observation. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of Example 1;

[0020] Figure 2 This is a schematic diagram of the bite force testing module in Example 1;

[0021] Figure 3 This is a schematic diagram of the termite fixing module in Example 1;

[0022] Figure 4 This is a diagram showing the data processing results in Example 1;

[0023] Figure 5 This is a schematic diagram of the connection structure between the balance plate and the first screw in Example 2;

[0024] Figure 6 This is a schematic diagram of the structure of Example 3;

[0025] Figure 7 This is a schematic diagram of the drive mechanism in Example 3.

[0026] In the diagram: 1. Base; 2. Support rod; 3. Balance plate; 4. Upper engagement piece; 5. Force sensor; 6. First screw; 7. Slider; 8. Horizontal base; 9. Double-sided adhesive; 10. Transparent pressure plate; 11. Industrial camera; 12. Adjustable bracket; 13. Macro lens; 14. LED ring light source; 15. Lower engagement piece; 16. Connecting block; 17. Bearing block; 18. Rotating block; 19. Groove; 20. First connecting plate; 21. Limiting block; 22. T-block; 23. Connecting strip; 24. Rotating shaft; 25. Screw; 26. Tapered strip. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] Reference Figures 1-4 This utility model provides a precise measurement and analysis system for termite biting force, comprising:

[0031] The bite force testing module includes an upper bite plate 4 and a lower bite plate 15. The lower bite plate 15 is set on a base 1. A balance plate 3 is rotatably connected to the base 1. One end of the balance plate 3 is connected to the upper bite plate 4. A vertically arranged force sensor 5 is connected between the other end of the balance plate 3 and the base 1. The distance between the connection point of the force sensor 5 and the balance plate 3 and the rotation point of the balance plate 3 is smaller than the distance between the connection point of the upper bite plate 4 and the balance plate 3 and the rotation point of the balance plate 3.

[0032] The termite fixing module includes a movable platform located on one side of the base 1. The movable platform is used to fix the termites and adjust their position.

[0033] The observation module is set on one side of the base 1, with its acquisition end aimed at the termite's mouthparts to collect real-time data on the termite's biting behavior.

[0034] Furthermore, the lower bite piece 15 is fixed to the base 1 with an adhesive, and the upper bite piece 4 is fixed to one end of the balance plate 3 with an adhesive, with a gap between the lower bite piece 15 and the upper bite piece 4.

[0035] Furthermore, the force sensor 5 can be selected according to the different termite species being measured. Generally, it is recommended that the force sensor not exceed 5N and the resolution not be lower than 0.001N to meet the requirements for accurate measurement of minute biting forces. The sensor type can be strain gauge, piezoelectric, or other types suitable for measuring minute forces. In one embodiment, the force sensor 5 is selected as a high-precision sensor with a maximum range of 3N and a resolution of 0.001N.

[0036] Furthermore, the base 1 can be made of aluminum alloy, stainless steel, engineering plastics, or other materials with sufficient rigidity to ensure stability during the measurement process. In one embodiment, the base 1 is made of aluminum alloy with an anodized surface, providing good corrosion resistance and aesthetics.

[0037] In some alternative embodiments, both the upper biting piece 4 and the lower biting piece 15 protrude from one side of the base 1. A support rod 2 is fixedly connected to the base 1. A sliding hole is provided on the balance plate 3. The support rod 2 passes through the sliding hole and is rotatably connected to the sliding hole. The distance from the connection point of the force sensor 5 and the balance plate 3 to the sliding hole is smaller than the distance from the connection point of the upper biting piece 4 and the balance plate 3 to the sliding hole.

[0038] Furthermore, a groove is provided on the top of the base 1, the groove extends through both sides of the base 1, the balance plate 3 is located in the groove, and the upper engagement piece 4 extends out of the groove.

[0039] Furthermore, the support rod 2 is made of stainless steel with a diameter of 4mm, and its surface is polished to reduce friction. The connection between the support rod 2 and the base 1 can be fixed or detachable, facilitating system assembly and adjustment.

[0040] In some alternative embodiments, the weight between the end of the balance plate 3 near the force sensor 5 and the sliding hole is equal to the weight between the end of the balance plate 3 near the upper engagement piece 4 and the sliding hole.

[0041] This design avoids the impact of weight differences on force detection results, improving the accuracy of force detection. Furthermore, the balance plate 3 can be made of lightweight aluminum alloy or other lightweight, high-strength materials, further reducing the impact of its own weight on the measurement results. In one embodiment, the balance plate 3 is made of lightweight aluminum alloy and has sliding holes matching the diameter of the support rod 2, ensuring that the balance plate 3 can rotate freely on the support rod 2, reducing the impact of friction on the measurement results.

[0042] In some alternative embodiments, the balance plate 3 and the force sensor 5 are connected by a connector, which includes a first screw 6. The first screw 6 is rotatably connected to the balance plate 3. The top of the housing of the force sensor 5 is provided with a threaded hole, and the first screw 6 is threadedly connected to the threaded hole.

[0043] Furthermore, the screw depth of the first screw 6 in the threaded hole can be finely adjusted, thereby finely adjusting the tilt angle of the balance plate 3 and adjusting the distance between the upper biting piece 4 and the lower biting piece 15. In one embodiment, the first screw 6 is an M3 socket head cap screw with an adjustable screw depth. By rotating the first screw 6, the distance between the two biting pieces can be precisely controlled to achieve the optimal width for termite mouthparts to engage. In addition to socket head cap screws, other types of connecting elements can be used, such as miniature universal joints, elastic connectors, etc., as long as a reliable connection between the balance plate 3 and the micro-force sensor 5 can be achieved.

[0044] In some alternative embodiments, the mobile platform includes a horizontal base 8, a support rod fixedly connected to the horizontal base 8, a lifting component provided on the support rod, a support platform fixedly connected to the lifting end of the lifting component, and double-sided tape 9 adhered to the support platform for fixing the abdomen of the termite.

[0045] Furthermore, the horizontal base 8 can move freely in the horizontal direction on the platform; the lifting component includes a connecting block 16 fixed to the support rod, the connecting block 16 has a sliding groove on the side near the support platform, a slider 7 is fixed to the support platform, the slider 7 is slidably connected to the sliding groove, a second screw is threaded on the connecting block 16, the second screw extends into the sliding groove and abuts against the slider 7, and a rotating cap is fixed to the end of the second screw.

[0046] In use, the horizontal base 8 is placed in a suitable position. By rotating the cover, the second screw is turned, causing the threaded rotation between the second screw and the connecting block 16. This causes the end of the second screw to leave the surface of the slider 7, releasing the slider 7 from its limit and allowing it to move up and down to a suitable height. Then, the second screw is tightened so that its end abuts against the surface of the slider 7, locking the slider 7 in place. This allows for adjustment of the termite's position, ensuring that the termite's mouthparts are accurately aligned with the upper jaw plate 4 and the lower jaw plate 15.

[0047] In some alternative embodiments, a transparent pressure sheet 10 is fixedly attached to the support platform, and the transparent pressure sheet 10 is disposed opposite to the double-sided adhesive 9, with termites located between the double-sided adhesive 9 and the transparent pressure sheet 10.

[0048] Double-sided tape 9 is used to fix the termites in place, and the transparent pressure plate 10 is used to confine the termites and prevent them from changing position. The double-sided tape 9 should be a type that is harmless to termites and has moderate adhesiveness, ensuring a firm hold without harming them. The transparent pressure plate 10 can be made of transparent acrylic or other transparent materials, with a recommended thickness not exceeding 1mm to ensure it does not obstruct observation.

[0049] Furthermore, the termite fixation method is as follows: first, use double-sided tape 9 to stick the termite's abdomen, then use a transparent pressure plate 10 to prevent the termite from changing position, and adjust the position of the horizontal base 8 and the height of the slider 7 to make the termite's mouthparts accurately approach the two bite plates.

[0050] Furthermore, other methods can be used to secure termites. For example, a miniature gripper can be designed to hold the termite's thorax in place; a special fixing groove can be designed to place the termite in the groove and fix it with a small amount of glue; a negative pressure adsorption device can also be designed to fix the termite in a specific position using a weak negative pressure. Different fixing methods can be selected and used according to experimental requirements and termite species.

[0051] In some alternative embodiments, the upper occlusal plate 4 and the lower occlusal plate 15 are made of stainless steel or titanium alloy, with a thickness between 0.05 mm and 0.2 mm.

[0052] Furthermore, the upper bite plate 4 and the lower bite plate 15 are made of stainless steel sheets with a thickness of 0.1mm and the surface is polished. The upper bite plate 4 and the lower bite plate 15 are firmly bonded to the corresponding positions on the balance plate 3 and the base 1 with oil-based adhesive.

[0053] Furthermore, the head shape of the upper biting plate 4 and the lower biting plate 15 can be trapezoidal, pointed, or other shapes, with the front end typically measuring about 3mm. These are specifically designed to address the size and structural characteristics of termite mouthparts, ensuring that termites can effectively perform biting actions.

[0054] In some alternative embodiments, the observation module includes an image acquisition device, a lighting system, and a display device. The image acquisition device includes an industrial camera 11, the lighting system includes an LED ring light source 14, and the display device includes a high-definition display screen. The LED ring light source 14 is mounted around the lens of the industrial camera 11. The industrial camera 11 is electrically connected to the high-definition display screen via an HDMI cable, and the lens of the industrial camera 11 is aimed at the mouthparts of the termites.

[0055] Furthermore, the industrial camera 11 has a resolution of no less than 20 megapixels, uses a CMOS color sensor, supports dual output via HDMI and USB, and has a recording frame rate of no less than 30 frames per second. The industrial camera 11 is equipped with a macro lens 13, which supports continuous zoom and has sufficient magnification to clearly observe the minute structure of termite mouthparts and the chewing process. An LED ring light source 14 is installed around the macro lens 13, with adjustable brightness to provide sufficient illumination and ensure high-definition image quality. The brightness of the light source is adjustable to adapt to different observation needs. The industrial camera 11 is electrically connected to a high-definition display screen via an HDMI cable for real-time observation of the termite chewing process and to assist in positioning. The system can perform image calibration based on the known dimensions of the chewing plates to achieve accurate length measurement.

[0056] In one embodiment, the industrial camera 11 is a high-definition camera with at least 60 megapixels, equipped with a CMOS color sensor, and supports both HDMI and USB outputs. The industrial camera 11 is mounted on an adjustable bracket 12 with a heavy-duty base design to ensure stability. The adjustable bracket 12 has multi-degree-of-freedom adjustment capabilities, allowing for precise positioning and easy adjustment of the observation angle and distance. The industrial camera 11 is equipped with a macro lens 13, supporting continuous zoom functionality. In one embodiment, the maximum magnification can reach 10x, enabling clear observation of the minute structures of termite mouthparts and the biting process. The selection of the macro lens 13 should consider parameters such as its working distance, depth of field, and resolution to ensure clear images are obtained at an appropriate working distance. In one embodiment, the recording frame rate of the industrial camera 11 can reach 60 frames per second, ensuring the ability to capture the instantaneous action of termite biting.

[0057] An LED ring light source 14 is mounted around the macro lens 13 to provide stable and uniform illumination, ensuring image clarity and contrast. The brightness of the light source is adjustable to adapt to different observation needs. In addition to the ring light source, the lighting system can also use other forms, such as side light sources, backlight sources, or combined light sources, selecting the appropriate lighting method according to actual observation requirements. A high-definition display screen is connected to the industrial camera 11 via an HDMI cable to display the termite chewing process captured by the industrial camera 11 in real time. The selection of the display screen should consider parameters such as resolution, color reproduction capability, and response speed to ensure observation effect. The real-time observation system needs to be calibrated in length before the experiment. Since the thickness of the upper chewing plate 4 and the lower chewing plate 15 is 0.1mm, this can be used as a reference value for length calibration to ensure that the observed image size is consistent with the actual size.

[0058] In some optional embodiments, a signal processing module is also provided. The signal processing module includes a signal acquisition device and a signal conversion device. The signal acquisition device includes a display controller, which is electrically connected to the force sensor 5. The signal conversion device is used to convert the signal acquired by the display controller into a data format that can be recognized by a computer.

[0059] Furthermore, the display controller is used for the acquisition, amplification, and processing of signals from force sensor 5. It supports the Modbus RTU communication protocol, and the sampling rate can be adjusted between 10-5000 times / second to meet different experimental requirements. It has the functions of displaying real-time data and parameter calibration. The signal conversion device can be a data acquisition card, a serial port converter, or other suitable device. In this embodiment, the signal conversion device is an RS485-USB adapter. The display controller is connected to the computer through the RS485-USB adapter to transmit the processed data to the data processing software. Image and data acquisition adopt a synchronous acquisition method, recording force value data and image data simultaneously to ensure the time consistency of the data. The precise correspondence between mechanical data and image data can be ensured through timestamps, trigger signals, or other synchronization methods.

[0060] Furthermore, the data processing software has the following functions: recording the changes in bite force throughout the entire experiment; extracting the effective bite time period from the data records; and calculating parameters such as peak bite force, bite time, and bite impulse.

[0061] Furthermore, the data processing software extracts effective bite by setting a reference force threshold. When the measured force exceeds the threshold and remains so for a certain period of time, it is determined that effective bite has begun. When the force drops below the threshold and remains so for a certain period of time, it is determined that effective bite has ended.

[0062] Furthermore, the data processing software identifies the unloading point in the biting process, i.e. the time point when the biting force begins to decrease, by taking the derivative of the curve and finding the inflection point.

[0063] In one embodiment, the data processing section includes host computer software and data analysis algorithms. The host computer software is based on a graphical user interface and has functions such as data acquisition, display, storage, and analysis. The data processing flow mainly includes the following steps:

[0064] 1. Data Acquisition and Storage: Record the changes in bite force and corresponding high-definition video throughout the entire experiment. The data is stored in time series format. Different sampling frequencies can be set during the experiment, but it is generally recommended to be no less than 10 times / second to ensure that instantaneous changes during the bite process can be captured.

[0065] 2. Extraction of Effective Biting Action: Due to the randomness of termite biting behavior, experimental records contain a large amount of invalid data. The system employs an adaptive threshold method to extract the time periods of effective biting action from the biting force test data records. Specifically, a baseline force threshold is set; when the measured force exceeds this threshold and remains above it for a certain period, it is determined that an effective biting action has begun; when the force drops below the threshold and remains below it for a certain period, it is determined that an effective biting action has ended. This method effectively filters out noise and invalid signals, improving the accuracy of data analysis.

[0066] 3. Peak Extraction: For each segment of valid occlusal data, a peak detection algorithm is used to find the peak value of the occlusal force during a single occlusal process, and the peak value and corresponding time point are recorded. Peak detection can be implemented using local maximum search, curve fitting, or other suitable algorithms.

[0067] 4. Unloading Point Identification: By differentiating the curve and finding the inflection point, the unloading point during the biting process is identified, which is the point at which the biting force begins to decrease. This point corresponds to the instant the termite releases its bite. Unloading point identification is of great significance for accurately calculating the biting time and analyzing the characteristics of termite biting behavior.

[0068] 5. Parameter Calculation: Calculate the following parameters based on the extracted data:

[0069] Peak bite force: The maximum force during a single bite, reflecting the upper limit of termite bite ability;

[0070] Engagement time: The time interval from the start of engagement to the point of release, reflecting the termite's ability to maintain engagement;

[0071] Bite impulse: The area under the bite force-time curve, a comprehensive indicator that reflects both bite force and duration;

[0072] Biting speed: The speed at which termite mouthparts close is calculated through video analysis, reflecting the dynamic characteristics of termite biting.

[0073] The data processing unit can automatically segment curves and extract unloading points during a single bite, greatly improving the efficiency and accuracy of data analysis. A visual interface displays the bite force-time curve, effective bite segment, and unloading point, allowing researchers to intuitively understand the characteristics of termite bite behavior.

[0074] This utility model also provides a method for using a precise termite bite force measurement and analysis system, including the following steps:

[0075] Start the system and ensure it is working properly;

[0076] Zero-point calibration and standardization of force sensor 5 are performed to ensure measurement accuracy.

[0077] Select healthy individuals from the termite colony and fix them to the mobile platform using double-sided tape.

[0078] Adjust the termite's position so that its mouthparts are accurately aligned with the upper jaw 4 and the lower jaw 15 for biting;

[0079] The measurement is complete; the termites have been removed.

[0080] Furthermore, the specific usage method of this termite bite force precision measurement and analysis system is as follows:

[0081] 1. System Preparation: Connect all modules, start the system, and check that each part is working properly. Perform system self-test and warm-up to ensure that sensors, cameras, and other equipment are in optimal working condition.

[0082] 2. Device Adjustment: Adjust the distance between the upper jaw plate 4 and the lower jaw plate 15 by rotating the first screw 6 or other connecting parts to suit the size of the termite mouthparts. The distance adjustment should follow the principle of "neither too loose nor too tight" so that the termites can bite smoothly without being unable to bite due to excessive distance or inaccurate measurement due to insufficient distance.

[0083] 3. Sensor Calibration: Perform zero-point calibration and standardization on force sensor 5 to ensure measurement accuracy. Calibration can be performed using standard weights or a dedicated calibrator. It is recommended to perform calibration before each experiment or periodically to ensure the accuracy and reliability of measurement data.

[0084] 4. Termite Preparation: Select healthy individuals from the termite colony. Different termite stages (e.g., soldier termites, worker termites) or different termite species can be chosen depending on the research objective. Use double-sided tape to fix the termites to the support platform, ensuring the abdomen is the fixation point to avoid hindering the movement of their head and thorax.

[0085] 5. Position Adjustment: Adjust the position of the horizontal base 8 and the height of the slider 7. With the assistance of the high-definition display screen, accurately align the termite mouthparts with the upper jaw plate 4 and the lower jaw plate 15. Position adjustment is crucial for the success of the experiment and requires careful operation to ensure that the termite mouthparts can naturally contact the jaw plates without generating additional pressure or tension.

[0086] 6. Data Acquisition: Start the data acquisition system to simultaneously record force data and high-definition video. The measurement time is typically 5-10 minutes, ensuring multiple effective engagements are captured. During the measurement process, maintain a stable experimental environment and avoid external interference that could affect the measurement results.

[0087] 7. Data Analysis: After measurement, data processing software is used to analyze the collected data, extract effective occlusion, and calculate relevant parameters. Data analysis can be customized according to research needs, such as adjusting threshold parameters or selecting different statistical methods.

[0088] Compared with the prior art, this application has the following significant advantages and beneficial effects:

[0089] 1. This system employs high-precision measurement technology, enabling accurate capture of minute force changes during termite biting. By using micro-force sensors with a resolution of 0.001N or higher, combined with a lever structure and specialized signal processing technology, the system's measurement accuracy is significantly improved, reliably recording bite force changes at the millinewton level.

[0090] 2. This system uses a testing device specifically designed for the characteristics of termite mouthparts. The thickness, material, and installation method of the bite plate are optimized specifically for the characteristics of termite mouthparts. Combined with the termite fixing device, this ensures the accuracy and repeatability of the measurement process, allowing termites to fully demonstrate their natural biting ability.

[0091] 3. This system integrates measurement, observation, and analysis. By combining mechanical measurement, high-definition image acquisition, real-time observation, and data processing, it enables the simultaneous recording and analysis of termite biting force and behavior, allowing researchers to fully understand the mechanical characteristics of termite biting behavior.

[0092] 4. This system provides multi-dimensional parameter analysis capabilities. It can not only measure the maximum biting force, but also acquire various parameters such as biting time, biting speed, and biting impulse. Through a specially developed data processing algorithm, it can automatically extract effective biting events from long-term records, identify unloading points, calculate parameters such as biting impulse, and comprehensively evaluate termite biting ability, improving the efficiency and accuracy of data analysis.

[0093] 5. This system establishes a standardized method for measuring termite bite force. By using a real-time observation system to assist operators in accurately locating termite mouthparts, it improves experimental efficiency and success rate, makes experimental results from different researchers comparable, and provides a unified technical platform for termite bite force research.

[0094] In summary, the termite bite force precision measurement and analysis system provided by this utility model not only solves the technical defects of insufficient measurement accuracy, lack of dedicated equipment, and separation of measurement and observation in the existing technology, but also provides a more comprehensive termite bite force evaluation method through multi-parameter analysis, providing important technical support for termite biological research and control technology development, and has broad application prospects.

[0095] Example 2:

[0096] Reference Figure 5 The difference from Embodiment 1 is that the first screw 6 is not directly connected to the balance plate 3, but a bearing block 17 is slidably connected to the balance plate 3. The bearing block 17 slides along the length of the balance plate 3, and a rotating block 18 is rotatably connected to the bearing block 17. The axis of rotation of the rotating block 18 is perpendicular to the first screw 6, and the first screw 6 passes through the rotating block 18 and is rotatably connected to the rotating block 18.

[0097] Furthermore, a sliding groove is provided on the balance plate 3, and the bearing block 17 slides in the sliding groove. A trapezoidal block is fixed to the side wall of the bearing block 17, and a trapezoidal groove is provided on the side wall of the sliding groove. The trapezoidal block slides in the trapezoidal groove for limiting.

[0098] When the screwing depth of the first screw 6 is changed, the balance plate 3 will tilt slightly. This will cause a slight change in the position of the force sensor 5 and the balance plate 3. With this setting, when the first screw 6 is screwed, the position of the first screw 6 on the balance plate 3 can be changed by sliding the bearing block 17. By rotating the block 18, the first screw 6 can always be kept in the vertical direction, which improves the convenience of adjustment.

[0099] Example 3:

[0100] Reference Figures 6-7 The difference from Embodiment 1 is that the lower biting piece 15 is not glued to the base 1, but a groove 19 is opened on the top of the base 1, the balance plate 3 is located in the groove 19, and a first connecting plate 20 is provided in the groove 19. The lower biting piece 15 is glued to the first connecting plate 20. Limiting blocks 21 are fixed on the two side walls of the first connecting plate 20. Limiting grooves are opened on the opposite side walls of the groove 19. The two limiting blocks 21 are slidably connected to the two limiting grooves respectively. The limiting blocks 21 slide in the vertical direction in the limiting groove, thereby realizing the adjustment of the lower biting piece 15 in the vertical position.

[0101] The base 1 is provided with a drive mechanism for driving the lower engagement piece 15 to rise and fall. The drive mechanism includes a T-shaped groove opened at the bottom of the first connecting plate 20. A T-shaped block 22 is slidably connected in the T-shaped groove. One end of a connecting strip 23 is rotatably connected to the bottom of the T-shaped block 22. The connecting strip 23 is rotatably connected to the side wall of the groove 19 through a rotating shaft 24. The rotating shaft 24 is located in the middle of the connecting strip 23 near the T-shaped block 22. The base 1 is provided with a drive assembly for adjusting the rotation of the connecting strip 23 around the rotating shaft 24.

[0102] The drive assembly includes an adjustment screw hole on the side wall of the base, which communicates with the groove 19. A screw 25 is threaded into the adjustment screw hole. A tapered strip 26 is fixed to one end of the screw 25 near the groove 19 via a connecting rod. The top of the tapered strip 26 contacts the bottom of the connecting strip 23. The tapered strip 26 is located at the end of the connecting strip 23 away from the T-block 22. The connecting strip 23 is inclined and the end connected to the tapered strip 26 is the lower end. The distance from the contact point between the tapered strip 26 and the connecting strip 23 to the rotating shaft 24 is greater than the distance from the rotating shaft 24 to the T-block 22.

[0103] By rotating the screw 25, the tapered strip 26 is moved horizontally within the groove 19, causing the tapered strip 26 to contact the connecting strip 23 at different heights, thus rotating the connecting strip 23 and changing its tilt angle. This, in turn, causes the T-block 22 to slide back and forth within the T-groove, while the limiting block 21 slides up and down within the limiting groove, thereby adjusting the position of the lower engagement piece 15. Furthermore, this structure forms a lever-based adjustment mechanism, improving adjustment accuracy and enabling adjustment of even minor changes in the lower engagement piece 15.

[0104] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 utility model 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 utility model.

[0105] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A precise measurement and analysis system for termite biting force, characterized in that, include: The bite force testing module includes an upper bite plate (4) and a lower bite plate (15). The lower bite plate (15) is set on a base (1). A balance plate (3) is rotatably connected to the base (1). One end of the balance plate (3) is connected to the upper bite plate (4). A vertically arranged force sensor (5) is connected between the other end of the balance plate (3) and the base (1). The distance between the connection point of the force sensor (5) and the balance plate (3) and the rotation point of the balance plate (3) is less than the distance between the connection point of the upper bite plate (4) and the balance plate (3) and the rotation point of the balance plate (3). The termite fixing module includes a movable platform located on one side of the base (1), which is used to fix termites and adjust the position of termites; An observation module is set on one side of the base (1), and the acquisition end of the observation module is aligned with the mouthparts of the termites to collect the termite biting behavior in real time.

2. The termite bite force precision measurement and analysis system according to claim 1, characterized in that: The upper biting piece (4) and the lower biting piece (15) both protrude from one side of the base (1). A support rod (2) is fixedly connected to the base (1). A sliding hole is opened on the balance plate (3). The support rod (2) passes through the sliding hole and is rotatably connected to the sliding hole. The distance from the connection point of the force sensor (5) and the balance plate (3) to the sliding hole is smaller than the distance from the connection point of the upper biting piece (4) and the balance plate (3) to the sliding hole.

3. The termite bite force precision measurement and analysis system according to claim 2, characterized in that: The weight of the balance plate (3) from the end near the force sensor (5) to the sliding hole is equal to the weight of the balance plate (3) from the end near the upper engagement piece (4) to the sliding hole.

4. The termite bite force precision measurement and analysis system according to claim 1, characterized in that: The balance plate (3) and the force sensor (5) are connected by a connector. The connector includes a first screw (6), which is rotatably connected to the balance plate (3). The top of the housing of the force sensor (5) is provided with a threaded hole, and the first screw (6) is threadedly connected to the threaded hole.

5. The termite bite force precision measurement and analysis system according to claim 1, characterized in that: The mobile platform includes a horizontal base (8), on which a support rod is fixedly connected. A lifting component is provided on the support rod. A support platform is fixedly connected to the lifting end of the lifting component. Double-sided tape (9) is adhered to the support platform. The double-sided tape (9) is used to fix the abdomen of the termite.

6. The termite bite force precision measurement and analysis system according to claim 5, characterized in that: A transparent pressure plate (10) is fixedly attached to the support platform. The transparent pressure plate (10) is arranged opposite to the double-sided tape (9). The termite is located between the double-sided tape (9) and the transparent pressure plate (10).

7. The termite bite force precision measurement and analysis system according to claim 1, characterized in that: The upper occlusal plate (4) and the lower occlusal plate (15) are made of either stainless steel or titanium alloy, and have a thickness between 0.05 mm and 0.2 mm.

8. The termite bite force precision measurement and analysis system according to claim 1, characterized in that: The observation module includes an image acquisition device, a lighting system, and a display device. The image acquisition device includes an industrial camera (11), the lighting system includes an LED ring light source (14), and the display device includes a high-definition display screen. The LED ring light source (14) is installed around the lens of the industrial camera (11). The industrial camera (11) is electrically connected to the high-definition display screen via an HDMI cable. The lens of the industrial camera (11) is aimed at the mouthparts of termites.

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