Ribbon capable of monitoring strength and real-time monitoring method for binding strength of ribbon

Abstract

The invention discloses a ribbon capable of monitoring strength and a real-time monitoring method for the binding strength of the ribbon, the ribbon comprises a ribbon body, a lock catch and a metal puncture needle, the ribbon body comprises a binding section and a sawtooth section, the lock catch is arranged at the right end of the binding section, the metal puncture needle is arranged at the left end of the sawtooth section, the right end of the sawtooth section is connected with the left end of the binding section, and the metal puncture needle is arranged at the right end of the metal puncture needle. The binding section comprises a fixed section and an elastic deformable section, a deformation sensing module is arranged on the deformable section, the deformation sensing module is in signal connection with a monitoring terminal, and the monitoring terminal determines the binding strength of the ribbon according to sensing signals of the deformation sensing module and judges the next action. According to the sternum binding belt, force monitoring in the binding process of the binding belt is achieved, the safety and effectiveness of an operation can be greatly improved, and the problems that an existing sternum binding belt does not have the force monitoring function, the use comfort cannot reach the best, and then recovery of a patient is affected are effectively solved.

Description

Technical Field

[0001] The invention relates to a tightening tie, in particular to a tie capable of monitoring force and a real-time monitoring method of the tightening force of the tie. Background Art

[0002] The main function of cable ties is to tighten and fix objects to ensure that the objects are stable and not easy to loosen. Its characteristics include easy operation, low cost, good insulation and self-locking fastening function. These advantages make cable ties an indispensable tool in daily life, medical industry, industrial production and other fields. With the continuous improvement of medical technology, the proportion of median thoracotomy is also increasing year by year. Median thoracotomy has become an important means to treat a variety of heart, pericardial and some mediastinal diseases. This surgical method is widely used in operations such as heart bypass, heart valve repair, pericardial effusion drainage and tumor resection, and has good therapeutic effects. However, how to effectively close the sternum after median thoracotomy has become a focus of medical attention. In early median thoracotomy, sternal closure mainly relied on wire binding. Although this method is simple and easy, due to the thin wire, it is very easy to cause cutting damage to the sternum during the binding process. This injury not only affects the healing of the sternum, but may also lead to serious complications, such as poor healing of the sternum and mediastinal infection. These complications can significantly increase the postoperative mortality rate of patients. In addition, wire bundling can easily cause problems such as bleeding and rupture of the bone marrow cavity and tissues, causing great pain and risks to patients. In order to solve the many problems caused by wire bundling, medical device developers have developed sternum straps. Compared with metal wires, sternum straps have been improved in many aspects of design. First, the shape and material of the straps have been optimized to effectively avoid cutting damage caused by metal wires. Secondly, the contact area between the strap and the sternum is increased, which reduces the pressure on the skin and reduces the risk of skin abrasion.

[0003] The Chinese utility model patent with application number: 2021213152332 discloses a non-destructive flexible sternum tie with a self-locking structure, including a lock buckle and a tie connected together, the interior of the lock buckle is provided with an inclined cavity, the cavity is provided with a high-hardness check ball that can move in the cavity, and a metal puncture needle is fixed to the tail end of the tie. The utility model provides a non-destructive flexible sternum tie with a self-locking structure, the main body of the sternum tie is injection molded from a polymer material of PEEK, and the shape is a flat belt; its contact area with the bundling part is greatly increased compared with the existing filamentary sternum ties on the market, which greatly reduces the pressure and damage to the ribs at the bundling part; the sternum tie is made of a polymer material and has strong toughness, which further ensures the effective and continuous bundling and tightening force of the sternum tie on the bundling part.

[0004] The Chinese utility model patent with application number: 2021229672638 discloses a non-destructive flexible sternum tie, including a tie, a locking buckle connected to the head end of the tie, a metal puncture needle fixed to the tail end of the tie, and a protective hoop slidably provided on the tie. By changing the shape and structure of the sternum tie, its contact area with the ribs is increased; the flexibility, load-bearing capacity, binding force, and anti-slip support effect of the tie are improved to reduce damage to the ribs during use; the sternum tie and the locking buckle are integrated into a design to reduce the risk of parts falling off.

[0005] Application number "2023217968885" is a sternum tie, which discloses a sternum tie, including: a tie insertion end is integrally provided at one end of the tie body, and a tie combination head is integrally provided at the other end of the tie body; a mounting block is installed on the outer wall of the tie body, and is provided with multiple, multiple tie perforation grooves are installed on the upper surface of the mounting block, and a combination buckle is installed on the outer wall of the tie perforation groove; the mounting groove is provided on the lower surface of the mounting block, and a Velcro bonding surface is provided inside the mounting groove, and a pad is bonded to the outer wall of the Velcro bonding surface, and a plurality of laterally arranged insertion end through holes are provided at a position of the tie body close to the tie insertion end.

[0006] However, these sternum straps do not have the function of monitoring force, and the comfort of use cannot be optimized, which in turn affects the patient's recovery. Therefore, there is an urgent need for a new type of strap that can monitor the force of binding in real time and a real-time monitoring method for the tightening force of the strap to improve the safety and effectiveness of surgery. Summary of the invention

[0007] The purpose of the present invention is to provide a novel cable tie capable of monitoring binding force in real time and a method for real-time monitoring of the tightening force of the cable tie, so as to improve the safety and effectiveness of surgery.

[0008] To achieve the above object, the present invention adopts the following technical solution:

[0009] A cable tie capable of monitoring force comprises a cable tie body, a locking buckle and a metal puncture needle, the cable tie body comprises a tightening section and a serrated section, the locking buckle is arranged at the right end of the tightening section, the metal puncture needle is arranged at the left end of the serrated section, the right end of the serrated section is connected to the left end of the tightening section, the tightening section comprises a fixed section and an elastically deformable section, a deformation sensing module is arranged on the deformable section, the deformation sensing module signal is connected to a monitoring terminal, and the monitoring terminal determines the tightening force of the cable tie and judges the next action according to the sensing signal of the deformation sensing module.

[0010] The monitoring terminal includes AI vision system, battery camera, chip and battery.

[0011] The deformation sensing module includes a copper wire wrapped around a deformable segment, rubber wrapped around the outer surface of the copper wire, and a signal transmitter installed on the inner surface of the rubber. When the cable tie is tightened, the copper wire deforms along with the deformable segment, the copper wire is stretched, the cross-sectional area becomes smaller, and the resistance changes. The signal transmitter captures the information of the resistance change and transmits the information to the monitoring terminal.

[0012] The deformation sensing module includes a strain gauge, the surface of which is covered with a number of precision contacts. The strain gauge is connected to an external precision circuit system through the precision contacts, and then the strain information is transmitted to the monitoring terminal.

[0013] The real-time monitoring method of the tightening force of a cable tie is implemented based on the cable tie capable of monitoring the force, and is characterized in that it comprises the following steps:

[0014] (1) Select a positioning point on the fixed segment;

[0015] (2) Aim the battery camera of the monitoring terminal at the sternum tie so that the AI ​​vision system can obtain the positioning point through the battery camera and monitor the deformation of the tie in real time during the tightening process;

[0016] (3) The AI ​​vision system uses the battery camera to obtain images of different deformations during the tightening process of the cable tie, compares them, and calculates the specific value of the deformation;

[0017] (4) Through a preset algorithm, the AI ​​vision system calculates the pressure applied by the cable tie based on the degree of deformation, and provides timely feedback based on the pressure to remind the user to adjust the strength.

[0018] The specific operation process of step (1) is: select two points on the vertical direction of the fixed segment as positioning points;

[0019] The specific operation process of step (2) is as follows: the AI ​​vision system obtains the positioning point as the visual reference. During the process of tightening the cable tie, the deformable segment is deformed, and displacement occurs between each point on the segment and the positioning point.

[0020] The specific implementation process of step (3) is as follows: for cable ties with different tightening degrees, the deformation degree of the deformable segment is different, and the distance between each point on the deformable segment and the positioning point is also different. The greater the deformation degree, the greater the distance between the point on the deformable segment and the positioning point. The AI ​​vision system calculates the specific value of the deformation according to the different distances between the points on the deformable segment and the positioning point in different deformation images.

[0021] The specific process of step (4) is as follows: the AI ​​vision system identifies the subtle movement and deformation of the cable tie based on the optical flow algorithm or key point monitoring technology, calculates the pressure applied by the cable tie based on the degree of deformation, and displays the data on an external display screen.

[0022] The real-time monitoring method of the tightening force of the cable tie is implemented based on the above-mentioned cable tie capable of monitoring the force, and is characterized in that: when the cable tie is tightened, the copper wire is deformed along with the deformable section, the copper wire is elongated, the cross-sectional area becomes smaller, and the resistance changes. The signal transmitter captures the information of the resistance change and transmits the information to the monitoring terminal. According to the working principle formula of the resistance value in the copper wire resistance wire: R resistance, ρ resistivity, and L length can be used to derive the relationship between the force applied by the cable tie and the change in resistance, and then the force applied by the cable tie can be calculated.

[0023] The real-time monitoring method of the tightening force of a cable tie is implemented based on the cable tie capable of monitoring the force, and is characterized in that it comprises the following steps:

[0024] (1) In the initial unstressed state, the resistance of the strain gauge is taken as the reference value R;

[0025] (2) During the tightening process of the cable tie, the strain gauge produces a slight deformation. According to the piezoresistive effect, the resistance value inside the strain gauge changes. The deformation formula of the strain gauge is:

[0026] ΔR / R resistance change rate, α piezoresistance coefficient, ε strain

[0027] (3) The external precision circuit system captures the resistance change inside the strain gauge and converts it into quantifiable data;

[0028] (4) Transmit the converted data to the monitoring terminal.

[0029] Compared with the prior art, the present invention has outstanding substantial features and significant progress. Specifically, the present invention can monitor the tightening force of the sternum tie during the process of tightening the sternum tie, and provide feedback based on the tightening force to facilitate staff to make timely adjustments, thereby greatly improving the safety and effectiveness of the operation.

[0030] The present invention uses a spiral copper wire to tie on a deformable section, so that the copper wire is stretched as the deformable section is deformed, and its internal resistance changes. The resistance change is transmitted to a monitoring terminal through a signal transmitter, and the monitoring terminal calculates the tightening force according to the change in resistance value and provides feedback.

[0031] The real-time monitoring method of the cable tie tightening force of the present invention is to select a positioning point on the fixed section; aim the battery camera of the monitoring terminal at the sternum cable tie, so that the AI ​​visual system obtains the positioning point through the battery camera and monitors the deformation of the cable tie in real time during the tightening process; the AI ​​visual system obtains pictures of different deformations during the tightening process of the cable tie through the battery camera, and compares and calculates the specific value of the deformation; through a preset algorithm, the AI ​​visual system calculates the pressure applied by the cable tie according to the degree of deformation, and timely feedbacks according to the pressure to remind the user to adjust the strength. The safety and effectiveness of the operation are greatly improved.

[0032] The real-time monitoring method of the tightening force of the cable tie of the present invention adopts a strain gauge, and in the initial unstressed state, the resistance of the strain gauge is taken as the reference value R. During the tightening process of the cable tie, the strain gauge produces a slight deformation. According to the piezoresistive effect, the resistance value inside the strain gauge changes. The external precision circuit system captures the change in the resistance value inside the strain gauge and converts it into quantifiable data, and finally transmits the converted data to the monitoring terminal.

[0033] In summary, the present application realizes the force monitoring of cable ties during the tightening process, which can greatly improve the safety and effectiveness of the operation, and effectively solves the problem that the existing sternum cable ties do not have the function of monitoring the force, which makes the comfort of use unable to reach the best and thus affects the patient's recovery. In addition, the cable tie capable of monitoring the force of the present invention is a common and multifunctional fixing tool. It can also be applied to the electronics industry, the construction industry and other fields because of its simple structure and convenient use. In the electronics industry, cable ties are often used to bundle wires, cables and other sensitive components to ensure that the lines are neat and safe and to prevent the cables from interfering with or being damaged by each other. In the construction field, cable ties are widely used to bundle delicate components such as pipes and cables to ensure the stability and safety of building structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the cable tie of the present invention.

[0035] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0036] Figure 3 It is a schematic structural diagram of the strain gauge of the present invention.

[0037] Figure 4 It is a structural schematic diagram of the monitoring terminal of the present invention.

[0038] Figure 5 It is a structural schematic diagram of selecting positioning points on the cable tie of the present invention.

[0039] Figure 6 It is a schematic diagram of the structure of the cable tie of the present invention being tightened.

[0040] Figure 7 It is a curve diagram of the change of resistance and pulling force of the present invention. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0042] Embodiment 1

[0043] like Figure 1-7 As shown, the cable tie 1 capable of monitoring force comprises a cable tie body 1, a lock buckle 2 and a metal puncture needle 3, the cable tie body 1 comprises a tightening section 10 and a serrated section 11, the lock buckle 2 is arranged at the right end of the tightening section 10, the metal puncture needle 3 is arranged at the left end of the serrated section 11, the right end of the serrated section 11 is connected to the left end of the tightening section 10, the tightening section 10 comprises a fixed section 15 and an elastic deformable section 14, a deformation sensing module is arranged on the deformable section 14, the deformation sensing module signal is connected to a monitoring terminal, and the monitoring terminal determines the tightening force of the sternum cable tie 1 according to the sensing signal of the deformation sensing module and judges the next action.

[0044] The monitoring terminal includes an AI vision system, a battery 6, a camera 4, a chip 5 and a battery 6.

[0045] The deformation sensing module includes a copper wire 7 wound on a deformable segment 14, a rubber wrapped on the outer surface of the copper wire 7, and a signal transmitter 8 mounted on the inner surface of the rubber.

[0046] The present invention can monitor the tightening force of the sternum tie 1 during the process of tightening the sternum tie 1, and provide feedback based on the tightening force so that the staff can make timely adjustments, which greatly improves the safety and effectiveness of the operation and effectively solves the problem that the existing sternum tie 1 does not have the function of monitoring the force, so that the comfort of use cannot be optimized, thereby affecting the patient's recovery.

[0047] Embodiment 2

[0048] The real-time monitoring method of the tightening force of a cable tie is implemented based on the cable tie 1 capable of monitoring the tightening force described in the first embodiment, and is characterized by comprising the following steps:

[0049] (1) Figure 5 As shown, a positioning point 9 is selected on the fixed segment 15;

[0050] (2) Aim the battery 6 camera 4 of the monitoring terminal at the sternum tie 1, so that the AI ​​vision system acquires the positioning point 9 through the battery 6 camera 4 and monitors the deformation of the tie 1 in real time during the tightening process;

[0051] (3) The AI ​​vision system obtains images of different deformations during the tightening process of the cable tie 1 through the battery 6 camera 4, compares them, and calculates the specific value of the deformation;

[0052] (4) Through a preset algorithm, the AI ​​vision system calculates the pressure applied by the cable tie 1 according to the degree of deformation, and provides timely feedback based on the pressure to remind the user to adjust the pressure.

[0053] The specific operation process of step (1) is: select two points on the vertical direction of the fixed section 15 as positioning points 9;

[0054] The specific operation process of step (2) is as follows: the AI ​​vision system obtains the positioning point 9 as a visual reference. During the tightening process of the cable tie 1, the deformable section 14 is deformed, and displacement occurs between each point thereon and the positioning point 9.

[0055] The specific implementation process of step (3) is as follows: for cable ties 1 with different tightening degrees, the deformation degree of the deformable segment 14 is different, and the distance between each point on the deformable segment 14 and the positioning point 9 is also different. The greater the deformation degree, the greater the distance between the point on the deformable segment 14 and the positioning point 9. The AI ​​vision system calculates the specific value of the deformation according to the different distances between the points on the deformable segment 14 and the positioning point 9 in different deformation images.

[0056] The specific process of step (4) is as follows: the AI ​​visual system identifies the slight movement and deformation of the cable tie 1 according to the optical flow algorithm or key point monitoring technology, calculates the pressure applied by the cable tie 1 according to the degree of deformation, and displays the data on an external display screen. In addition, the AI ​​visual system can also perform color recognition, identify the positioning point 9 of the sternum cable tie 1 through image processing technology, quickly locate it, and set it as a reference point. The AI ​​visual system also has an edge monitoring algorithm (such as Canny edge detection) to determine the edge of the cable tie 1 and the position of the positioning point 9. By analyzing the position changes of different parts of the cable tie 1 in the image, the AI ​​visual system can calculate the deformation amount in each frame and track the deformation changes according to the time series. Using machine learning methods, such as training convolutional neural networks (CNN), the system can predict the force corresponding to different deformation amounts based on previous training data. The system can be trained with a large amount of experimental data to improve the accuracy of the prediction. The AI ​​visual system can self-learn by accumulating data during use, and gradually optimize its monitoring accuracy and response speed to cope with different environments and individual differences. Before the device leaves the factory or is used, the system will undergo a calibration procedure to ensure the accuracy of the AI ​​visual system. By testing standard objects, the parameters in the algorithm can be adjusted to adapt it to different usage scenarios.

[0057] Select the positioning point 9 on the fixed section 15; aim the battery 6 camera 4 of the monitoring terminal at the sternum tie 1, so that the AI ​​vision system obtains the positioning point 9 through the battery 6 camera 4 and monitors the deformation of the tie 1 in real time during the tightening process; the AI ​​vision system obtains pictures of different deformations during the tightening process of the tie 1 through the battery 6 camera 4, and compares and calculates the specific value of the deformation; through the preset algorithm, the AI ​​vision system calculates the pressure applied by the tie 1 according to the degree of deformation, and timely feedbacks according to the pressure to remind the user to adjust the strength. The safety and effectiveness of the operation are greatly improved.

[0058] Embodiment 3

[0059] The real-time monitoring method of the tightening force of the cable tie is implemented based on the above-mentioned cable tie capable of monitoring the force, and is characterized in that: when the sternum cable tie 1 is tightened, the copper wire 7 is deformed along with the deformable section 14, the copper wire 7 is elongated, the cross-sectional area becomes smaller, and the resistance changes. The signal transmitter 8 captures the information of the resistance change and transmits the information to the monitoring terminal. According to the working principle formula of the resistance value in the copper wire resistance wire: R resistance, ρ resistivity, L length, we can get the relationship between the force applied by the cable tie 1 and the resistance change, and then deduce the transformation curve of the force applied by the cable tie 1, resistance and cable tie tension as shown in Figure 7 As shown. A spiral copper wire 7 is tied to the deformable section 14, so that the copper wire 7 is stretched as the deformable section 14 is deformed, and its internal resistance changes. The resistance change is transmitted to the monitoring terminal through the signal transmitter 8. The monitoring terminal calculates the tightening force according to the change in resistance value and provides feedback. In this way, the deformation of the copper wire 7 is used to monitor the force applied by the cable tie 1, so that the pressure in the medical operation can be accurately controlled to avoid risks caused by improper pressure. The deformation sensing module includes a strain gauge 12, and the surface of the strain gauge 12 is covered with a plurality of precision contacts 13. The strain gauge 12 is connected to the external precision circuit system through the precision contacts 13, and the strain information is transmitted to the monitoring terminal.

[0060] Embodiment 4

[0061] The real-time monitoring method of the tightening force of a cable tie is implemented based on the cable tie 1 capable of monitoring the tightening force described in the first embodiment, and is characterized by comprising the following steps:

[0062] (1) In the initial unstressed state, the resistance of the strain gauge 12 is taken as the reference value R;

[0063] (2) During the tightening process of the cable tie 1, the strain gauge 12 produces a slight deformation. According to the piezoresistive effect, the resistance value inside the strain gauge 12 changes. The deformation formula of the strain gauge 12 is:

[0064] ΔR / R resistance change rate, α piezoresistance coefficient, ε strain

[0065] (3) The external precision circuit system captures the resistance value change inside the strain gauge 12 and converts it into quantifiable data;

[0066] (4) Transmitting the converted data to the monitoring terminal. Using the strain gauge 12 and taking the resistance of the strain gauge 12 as the reference value R in the initial unstressed state, the strain gauge 12 produces a slight deformation during the tightening process of the cable tie 1. According to the piezoresistive effect, the resistance value inside the strain gauge 12 changes. The external precision circuit system captures the resistance value change inside the strain gauge 12 and converts it into quantifiable data, and finally transmits the converted data to the monitoring terminal.

[0067] The above embodiments are only used to illustrate but not to limit the technical solutions of the present invention.

[0068] Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that the present invention may still be modified or replaced by equivalents, and any modification or partial replacement that does not depart from the spirit and scope of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A cable tie capable of monitoring force, comprising a cable tie body, a lock buckle and a metal puncture needle, characterized in that: The cable tie body includes a tightening section and a serrated section, the lock buckle is arranged at the right end of the tightening section, the metal puncture needle is arranged at the left end of the serrated section, the right end of the serrated section is connected to the left end of the tightening section, the tightening section includes a fixed section and an elastic deformable section, a deformation sensing module is arranged on the deformable section, the deformation sensing module signal is connected to a monitoring terminal, and the monitoring terminal determines the tightening force of the cable tie and judges the next action according to the sensing signal of the deformation sensing module.

2. The cable tie capable of monitoring force according to claim 1, characterized in that: The monitoring terminal includes AI vision system, battery camera, chip and battery.

3. The cable tie capable of monitoring force according to claim 1, characterized in that: The deformation sensing module comprises a copper wire wound on a deformable segment, a rubber wrapped on the outer surface of the copper wire and a signal transmitter installed on the inner surface of the rubber.

4. The cable tie capable of monitoring force according to claim 1, characterized in that: The deformation sensing module includes a strain gauge, the surface of which is covered with a number of precision contacts. The strain gauge is connected to an external precision circuit system through the precision contacts, and then the strain information is transmitted to the monitoring terminal.

5. A method for real-time monitoring of the tightening force of a cable tie, implemented based on the cable tie capable of monitoring the tightening force as claimed in claim 2, characterized in that: The steps include: (1) Select a positioning point on the fixed segment; (2) Aim the battery camera of the monitoring terminal at the cable tie, so that the AI ​​vision system can obtain the positioning point through the battery camera and monitor the deformation of the cable tie in real time during the tightening process; (3) The AI ​​vision system uses the battery camera to obtain images of different deformations during the tightening process of the cable tie, compares them, and calculates the specific value of the deformation; (4) Through a preset algorithm, the AI ​​vision system calculates the pressure applied by the cable tie based on the degree of deformation, and provides timely feedback based on the pressure to remind the user to adjust the strength.

6. The real-time monitoring method according to claim 5, characterized in that: The specific operation process of step (1) is: select two points on the vertical direction of the fixed segment as positioning points; The specific operation process of step (2) is as follows: the AI ​​vision system obtains the positioning point as the visual reference. During the process of tightening the cable tie, the deformable segment is deformed, and displacement occurs between each point on the segment and the positioning point.

7. The monitoring method according to claim 6, characterized in that: The specific implementation process of step (3) is as follows: for cable ties with different tightening degrees, the deformation degree of the deformable segment is different, and the distance between each point on the deformable segment and the positioning point is also different. The greater the deformation degree, the greater the distance between the point on the deformable segment and the positioning point. The AI ​​vision system calculates the specific value of the deformation according to the different distances between the points on the deformable segment and the positioning point in different deformation images. The specific process of step (4) is as follows: the AI ​​vision system identifies the subtle movement and deformation of the cable tie based on the optical flow algorithm or key point monitoring technology, calculates the pressure applied by the cable tie based on the degree of deformation, and displays the data on an external display screen.

8. A method for real-time monitoring of the tightening force of a cable tie, implemented based on the cable tie capable of monitoring the tightening force as claimed in claim 3, characterized in that: When the cable tie is tightened, the copper wire deforms along with the deformable section, the copper wire is stretched, the cross-sectional area becomes smaller, and the resistance changes. The signal transmitter captures the information of the resistance change and transmits the information to the monitoring terminal. According to the working principle formula of the resistance value in the copper wire resistance wire: R resistance, ρ resistivity, and L length can be used to derive the relationship between the force applied by the cable tie and the change in resistance, and then the force applied by the cable tie can be calculated.

9. A method for real-time monitoring of the tightening force of a cable tie, implemented based on the cable tie capable of monitoring the tightening force as claimed in claim 4, characterized in that: The steps include: (1) In the initial unstressed state, the resistance of the strain gauge is taken as the reference value R; (2) During the tightening process of the cable tie, the strain gauge produces a slight deformation. According to the piezoresistive effect, the resistance value inside the strain gauge changes. The deformation formula of the strain gauge is: ΔR / R resistance change rate, α piezoresistance coefficient, ε strain (3) The external precision circuit system captures the resistance change inside the strain gauge and converts it into quantifiable data; (4) Transmit the converted data to the monitoring terminal.

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