Thermal sensor production method, system, apparatus and medium using ultra-fine wire

Abstract

The invention relates to a production method, system, equipment and medium for a thermal sensor using a superfine wire, and relates to the technical field of thermal sensor design, and the method comprises the steps: controlling a capillary tube to rotate through a third drive motor, and driving a wire from a coil rack to pass through a wire guide needle to wind the capillary tube to be wound, a second driving motor connected with the wire guiding needle is controlled to rotate to drive the wire guiding needle to adjust the position so as to guide the wire to move towards the capillary tube to be wound; in the process that a wire winds a capillary tube, wire tension collected by a tension sensor arranged in front of a wire needle is obtained, a first driving motor connected with a coil frame is controlled according to the obtained wire tension to adjust the rotating speed so as to change the rotating speed of the coil frame, and then the effective wire tension is kept; after winding is finished, a wire winding image about the capillary tube is obtained, and whether winding has problems or not is judged. According to the invention, the thermal sensor with excellent quality is obtained by improving the winding mode of the capillary wire.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal sensor design, and in particular to a thermal sensor production method, system, equipment and medium using ultra-fine wires. Background Art

[0002] In recent years, driven by the localization process of my country's semiconductor industry, my country's semiconductor discrete device market has occupied an increasingly important position globally, and the semiconductor industry is full of opportunities and challenges.

[0003] In the semiconductor industry, the production link of sensors is particularly important. A good production link can effectively improve the yield rate of sensors. Sensor production systems (such as winding devices) are key equipment in the manufacturing of electronic components. However, with the increasing demand for miniaturization and high precision, traditional winding devices have obvious deficiencies in ultra-fine wire winding, complex winding patterns, efficiency and consistency, and are difficult to meet modern manufacturing requirements.

[0004] With the development of industrial automation, traditional winding devices have been unable to meet the needs of modern production. For example, it is difficult for existing technologies to ensure the speed of ultra-fine wires being wound onto capillaries, resulting in uneven winding on the capillaries and affecting the yield rate. It is also difficult for existing technologies to ensure the tension control of ultra-fine wires during the automatic winding process. If the tension control accuracy is insufficient, it is easy to cause the wires to break or become loose and misaligned. The existing technology is too rough in winding detection of capillaries that have completed winding. In view of this, it is necessary to improve the winding method of thermal sensors to meet the needs of modern industrial production in terms of wire winding and complex winding patterns. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem that the winding method of the capillary in the prior art is difficult to meet the needs of modern industrial production in ultra-fine wire winding and complex winding patterns, thereby affecting the yield rate.

[0006] In order to solve the above technical problems, the present invention provides a method for producing a thermal sensor using ultra-fine wires, comprising:

[0007] Step S1: controlling the capillary to rotate by the third driving motor, driving the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and driving the wire needle to adjust its position by controlling the second driving motor connected to the wire needle to rotate, so as to guide the wire to move in the direction of the capillary to be wound;

[0008] Step S2: during the process of winding the wire around the capillary, the wire tension collected by the tension sensor arranged before the wire needle is obtained, and the first driving motor connected to the coil frame is controlled to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range;

[0009] Step S3: After the capillary winding is completed, a wire winding image of the capillary is obtained, and whether there is a problem with the winding is determined based on the wire winding image. If there is a problem, the location of the problem is marked; if there is no problem, the detection is completed.

[0010] In one embodiment of the present invention, the second drive motor and the third drive motor keep working synchronously to achieve matching of the wire needle offset speed controlled by the second drive motor and the capillary rotation speed controlled by the third drive motor, and the formula is:

[0011] ;

[0012] in, is the linear speed of the wire needle's left and right deviation, is the capillary rotation speed, is the winding spacing on the capillary.

[0013] In one embodiment of the present invention, the method of controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension in step S2 to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range includes:

[0014] Set the preset tension range of the wire;

[0015] During the winding process, the wire tension detected by the tension sensor is obtained;

[0016] When the conductor tension is within the preset tension range, the conductor tension is not adjusted;

[0017] When the wire tension is greater than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is increased, thereby reducing the wire feeding tension to prevent the wire from being broken due to excessive wire tension;

[0018] When the wire tension is less than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is slowed down, thereby increasing the wire feeding tension.

[0019] In one embodiment of the present invention, when the wire tension is greater than or less than a preset tension range, the rotation speed of the first drive motor connected to the coil frame is accelerated or slowed down, specifically:

[0020] Construct a quadratic function to control the tension. The formula is: ,in, is the current tension; is the actual feedback value of the tension sensor; is the ideal feedback signal value, corresponding to the target tension; It is the preset tension range; is the sensitivity parameter and ;

[0021] During the winding process, if the wire tension is not within the preset tension range, the deviation calculation formula Generate an adjustment signal, and the first drive motor outputs a signal through the formula The speed of the first driving motor is increased or decreased to change the wire tension, and the wire is fed dynamically. is the proportional gain coefficient, used for the direct response intensity to the tension deviation; It is the rate of change of tension deviation over time, which is used to reflect the trend and speed of tension change and to predict future deviation dynamics; It is the differential gain coefficient, which is used to reflect the response intensity to the rate of change of tension deviation.

[0022] In one embodiment of the present invention, the wire diameter ranges from 0.01 mm to 0.05 mm.

[0023] In one embodiment of the present invention, the method for marking the location where the problem exists in step S3 includes:

[0024] grayscale processing is performed on the acquired wire winding image to obtain a grayscale image;

[0025] Smooth the grayscale image by Gaussian filtering;

[0026] Based on the Gaussian filtered image, the fixed winding area on the capillary is extracted as the region of interest and binarized to highlight the edge of the wire.

[0027] The wire edge is extracted by the Canny operator, and the segmented coils on the capillary and the adjacent winding distribution in each segment of the coil are judged by the straight line detection operator to detect whether the winding is uniform and whether there is a gap.

[0028] Calculate the spacing between the segmented coils on the capillary tube and the spacing between adjacent windings in each segmented coil. If the spacing is smaller than the corresponding preset value, overlapping problems may occur; if the spacing is larger than the corresponding preset value, misalignment or loose winding may occur.

[0029] When a defect in the winding is identified, the coordinates of the defective area are recorded and displayed.

[0030] In one embodiment of the present invention, the method for extracting the fixed winding area on the capillary as the region of interest based on the Gaussian filtered image includes:

[0031] Extracting the contour of the wound capillary;

[0032] According to the coordinates corresponding to the two contours of the capillary , ,according to , , , The capillary centerline coordinates are obtained by fitting , and the midline equation ,in, , , To take the absolute value;

[0033] Set the winding starting point , single coil length , then the winding starting point and single coil length Substituting into the midline equation, the identified area is , , and the identified area is taken as the region of interest, where is the adjustment factor, , is the capillary radius, is the wire diameter;

[0034] When the capillary has a segmented coil, the method for dividing the identification area of ​​the first segment of the segmented coil is the same as the method for obtaining the region of interest of the single segment coil. After that, the identification area corresponding to each segment of the coil is expressed as: , , and the identification area corresponding to each subsequent coil is taken as the region of interest, where , , is the length of each coil, is the spacing width between adjacent coils, Indicates that the current coil area is the first coil wound on the capillary. Segment coil.

[0035] In order to solve the above technical problems, the present invention provides a thermal sensor production system using ultra-fine wires, comprising:

[0036] Control module: used to control the rotation of the capillary through the third driving motor, drive the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and drive the wire needle to adjust its position by controlling the rotation of the second driving motor connected to the wire needle to guide the wire to move in the direction of the capillary to be wound;

[0037] Adjustment module: used for obtaining the wire tension collected by the tension sensor arranged before the wire needle during the process of winding the wire onto the capillary, and controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range;

[0038] Judgment module: used to obtain the wire winding image of the capillary after the capillary winding is completed, and judge whether there is a problem with the winding according to the wire winding image. If there is a problem, the location of the problem is marked; if there is no problem, the detection is completed.

[0039] In order to solve the above technical problems, the present invention provides a thermal sensor, which is manufactured and processed by the above thermal sensor production method using ultra-fine wires.

[0040] To solve the above technical problems, the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the above-mentioned method for producing a thermal sensor using ultrafine wires are implemented.

[0041] In order to solve the above technical problems, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned method for producing a thermal sensor using ultra-fine wires are implemented.

[0042] The above technical solution of the present invention has the following advantages compared with the prior art:

[0043] The method for producing a thermal sensor using ultra-fine wires of the present invention can control the rotation speed of the wire coil wound on the capillary in real time through the feedback signal of the tension sensor. If the wire tension is not within the preset tension range, the speed of the coil frame is changed by increasing or decreasing the speed of the first drive motor, thereby changing the wire tension to dynamically feed the wire. In addition, the present invention realizes the winding of ultra-fine wires with a minimum wire diameter of 0.01 mm to 0.05 mm through high-precision tension control, meeting the current demand for refined industrial winding.

[0044] After the winding is completed, the present invention can detect whether the winding of the capillary has quality problems such as overlap and misalignment, and mark the positions of overlap and misalignment. In the identification process, the present invention extracts each coil partition on the same capillary as an area of ​​interest to perform overlap and misalignment detection to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0046] Figure 1 is a flow chart of a method for producing a thermal sensor using ultra-fine wires in an embodiment of the present invention; Figure 2 It is a schematic diagram of the production process of the thermal sensor in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Embodiment 1

[0048] Reference Figure 1 and Figure 2 The present invention relates to a method for producing a thermal sensor using an ultra-fine wire, comprising:

[0049] Step S1: controlling the capillary to rotate by the third driving motor, driving the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and driving the wire needle to adjust its position by controlling the second driving motor connected to the wire needle to rotate, so as to guide the wire to move in the direction of the capillary to be wound;

[0050] Step S2: during the process of winding the wire around the capillary, the wire tension collected by the tension sensor arranged before the wire needle is obtained, and the first driving motor connected to the coil frame is controlled to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range;

[0051] Step S3: After the capillary winding is completed, a wire winding image of the capillary is obtained, and whether there is a problem with the winding is determined based on the wire winding image. If there is a problem, the location of the problem is marked; if there is no problem, the detection is completed (equivalent to the end of the entire capillary winding process).

[0052] The following is a detailed introduction to this embodiment:

[0053] The second drive motor and the third drive motor of this embodiment keep working synchronously, so as to adapt the wire needle offset speed controlled by the second drive motor and the capillary rotation speed controlled by the third drive motor (to ensure that the wire needle offset speed and the coil frame rotation speed run synchronously), and the formula is:

[0054]

[0055] in, is the linear speed of the wire needle's left and right deviation, is the capillary rotation speed, is the winding spacing on the capillary.

[0056] Furthermore, in step S2, the method of controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range includes:

[0057] Set the preset tension range of the wire;

[0058] During the winding process, the current wire tension detected by the tension sensor is obtained;

[0059] When the conductor tension is within the preset tension range, the conductor tension is not adjusted;

[0060] When the wire tension is greater than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is increased, thereby reducing the wire feeding tension to prevent the wire from being broken due to excessive wire tension;

[0061] When the wire tension is less than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is slowed down, thereby increasing the wire feeding tension to prevent the winding coil from deviating due to looseness.

[0062] It should be noted that the first drive motor of this embodiment adjusts the rotation speed only when the wire tension is too large or too small. Under normal circumstances, the wire tension is such that the first drive motor only provides a normal supply speed.

[0063] Specifically, when the wire tension is greater than or less than a preset tension range, the rotation speed of the first drive motor connected to the coil frame is accelerated or slowed down, specifically:

[0064] Construct a quadratic function to control the tension. The formula is: ,in, The current real-time detected tension; is the actual feedback value of the tension sensor; is the ideal feedback signal value, corresponding to the target tension; is the preset tension range (in actual application, one value can be taken, that is, the tension value corresponding to the tension extreme point); is the sensitivity parameter and ;

[0065] During the winding process, if the wire tension is not within the preset tension range, the deviation calculation formula Generate an adjustment signal, and the first drive motor outputs a signal through the formula The speed of the first driving motor is increased or decreased to change the tension and perform dynamic wire feeding, wherein: is the current real-time detected tension, For the preset tension range, is the proportional gain coefficient, used for the direct response intensity to the tension deviation; It is the rate of change of tension deviation over time, which is used to reflect the trend and speed of tension change and to predict future deviation dynamics; is the differential gain coefficient, the response intensity of the control system to the rate of change of tension deviation, The larger the value, the stronger the reaction to rapidly changing deviations to slow down tension fluctuations.

[0066] Specifically, the proportion part ( ) directly adjusts the first drive motor according to the tension deviation, providing fast response, differential part ( )Predictive adjustments are made according to the changing trend of the deviation to suppress oscillation and fluctuation. Through the closed-loop feedback cooperation of these two parts, the control of the first drive motor can dynamically adjust the speed of the coil frame to maintain the tension within the target range while avoiding over-adjustment and delay.

[0067] It is worth mentioning that the wire diameter of the wire in this embodiment is in the range of 0.01mm-0.05mm, while the wire diameter of the conventional method for making thermal sensors is usually above 0.2mm. The reason why the wire diameter of the wire in this embodiment can be controlled within the range of 0.01mm-0.05mm is that based on the above quadratic function To achieve tension control, when the wire tension is not within the preset tension range, the formula The speed of the first driving motor is increased or decreased, thereby changing the tension and performing dynamic wire feeding.

[0068] Specifically, the method for marking the location where the problem exists in step S3 includes:

[0069] S31: grayscale processing is performed on the acquired wire winding image to obtain a grayscale image;

[0070] S32: smoothing the grayscale image by Gaussian filtering;

[0071] S33: based on the Gaussian filtered image, extract the fixed winding area on the capillary as the region of interest, and perform binarization processing to highlight the edge of the wire;

[0072] S34: extracting the wire edge by using the Canny operator, and judging the segmented coils on the capillary and the distribution of adjacent windings in each segmented coil by using the straight line detection operator, so as to detect whether the winding is uniform and whether there is a gap;

[0073] S35: Calculate the spacing between the segmented coils on the capillary and the spacing between adjacent windings in each segment of the coil. If the spacing is smaller than the corresponding preset values ​​(the first preset value and the second preset value), overlapping problems may occur; if the spacing is larger than the corresponding preset values ​​(the first preset value and the second preset value), misalignment or loose windings may occur. The segmented coil can be understood as follows: for example, the capillary has two segments of coils, the two segments of coils are 3mm apart, and the number of windings of each segment of the coil is 20, then the two segments of the coil constitute the segmented coil of the capillary. The adjacent windings in each segment of the coil can be understood as follows: for example, the number of windings of the same segment of the coil is 20, and the adjacent windings in the 20 windings are the adjacent windings of each segment of the coil;

[0074] S36: When it is identified that there is a defect in the winding, the coordinates of the defective area are recorded and displayed (specifically, it can be displayed on a display).

[0075] Furthermore, after the capillary is wound in this embodiment, 90 degrees is used as a rotation cycle of the capillary, and the wire winding image of the capillary is captured in each rotation cycle, which is used as a basis for winding quality detection.

[0076] It should be noted that the winding method on the capillary in this embodiment is not unique. When the capillary has segmented coils, this embodiment needs to extract the region of interest (ROI) for each segment of the coil for analysis to further reduce the amount of defect detection data.

[0077] Further, based on the image after the preprocessing operation (i.e., after Gaussian filtering), the method of extracting the fixed winding area on the capillary as the area of ​​interest includes:

[0078] (1) Extract the contour of the capillary;

[0079] (2) Based on the coordinates corresponding to the two contours of the capillary (equivalent to the upper and lower sides of the capillary) , ,according to , , , The capillary centerline coordinates are obtained by fitting , and the midline equation ,in, , , To take the absolute value;

[0080] (3) Set the winding starting point , single coil length , then the winding starting point and single coil length Substituting the above midline equation into the identification area, we can get , , and the identified area is taken as the region of interest, where is the adjustment factor, , is the capillary radius, is the wire diameter;

[0081] (4) When the winding is multi-segment (i.e., the capillary needs to be wound into segmented coils), the method for dividing the identification area of ​​the first segment of the multi-segment coil is the same as the method for obtaining the region of interest of the single-segment coil mentioned above. The identification area corresponding to each segment of the coil is then expressed as , , and the identification area corresponding to each subsequent coil is taken as the region of interest, where , , is the length of each coil, is the spacing width between each adjacent coil, Indicates that the current coil area is the nth coil wound on the capillary.

[0082] The wire needle opening of this embodiment is less than 0.2mm, which can accurately guide the ultra-fine wire so that it can be wound along the specified path without deviating from the winding trajectory. The high-precision stepper motor is combined with the guide rail system, and the coil winding pitch can be accurate to the micron level. Embodiment 2

[0083] This embodiment provides a thermal sensor production system using ultra-fine wires, including:

[0084] Control module: used to control the rotation of the capillary through the third driving motor, drive the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and drive the wire needle to adjust its position by controlling the rotation of the second driving motor connected to the wire needle to guide the wire to move in the direction of the capillary to be wound;

[0085] Adjustment module: used for obtaining the wire tension collected by the tension sensor arranged before the wire needle during the process of winding the wire onto the capillary, and controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range;

[0086] Judgment module: used to obtain the wire winding image of the capillary after the capillary winding is completed, and judge whether there is a problem with the winding according to the wire winding image. If there is a problem, the location of the problem is marked; if there is no problem, the detection is completed. Embodiment 3

[0087] This embodiment provides a thermal sensor, which is manufactured by using the thermal sensor production method using ultra-fine wires as described in the first embodiment. Embodiment 4

[0088] This embodiment provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method for producing a thermal sensor using ultra-fine wires described in Embodiment 1 are implemented. Embodiment 5

[0089] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method for producing a thermal sensor using ultra-fine wires described in the first embodiment are implemented.

[0090] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The schemes in the embodiments of the present application may be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0091] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0092] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0093] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0094] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0095] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A method for producing a thermal sensor using ultra-fine wires, characterized in that: include: Step S1: controlling the capillary to rotate by the third driving motor, driving the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and driving the wire needle to adjust its position by controlling the second driving motor connected to the wire needle to rotate, so as to guide the wire to move in the direction of the capillary to be wound; Step S2: during the process of winding the wire around the capillary, the wire tension collected by the tension sensor arranged before the wire needle is obtained, and the first driving motor connected to the coil frame is controlled to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range; Step S3: after the capillary winding is completed, a wire winding image of the capillary is obtained, and whether there is a problem with the winding is determined according to the wire winding image. If there is a problem, the location of the problem is marked; If there are no issues, the test is complete.

2. The method for producing a thermal sensor using ultra-fine wires according to claim 1, characterized in that: The second drive motor and the third drive motor keep working synchronously to achieve the adaptation of the wire needle deviation speed controlled by the second drive motor and the capillary rotation speed controlled by the third drive motor. The formula is: ； in, is the linear speed of the wire needle's left and right deviation, is the capillary rotation speed, is the winding spacing on the capillary.

3. The method for producing a thermal sensor using ultra-fine wires according to claim 1, characterized in that: The method of controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension in step S2 to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range includes: Set the preset tension range of the wire; During the winding process, the wire tension detected by the tension sensor is obtained; When the conductor tension is within the preset tension range, the conductor tension is not adjusted; When the wire tension is greater than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is increased, thereby reducing the wire feeding tension to prevent the wire from being broken due to excessive wire tension; When the wire tension is less than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is slowed down, thereby increasing the wire feeding tension.

4. The method for producing a thermal sensor using ultra-fine wires according to claim 3, characterized in that: When the wire tension is greater than or less than the preset tension range, the rotation speed of the first drive motor connected to the coil frame is accelerated or slowed down, specifically: Construct a quadratic function to control the tension. The formula is: ,in, is the current tension; is the actual feedback value of the tension sensor; is the ideal feedback signal value, corresponding to the target tension; It is the preset tension range; is the sensitivity parameter and ; During the winding process, if the wire tension is not within the preset tension range, the deviation calculation formula Generate an adjustment signal, and the first drive motor outputs a signal through the formula The speed of the first driving motor is increased or decreased to change the wire tension, and the wire is fed dynamically. is the proportional gain coefficient, used for the direct response intensity to the tension deviation; It is the rate of change of tension deviation over time, which is used to reflect the trend and speed of tension change and to predict future deviation dynamics; It is the differential gain coefficient, which is used to reflect the response intensity to the rate of change of tension deviation.

5. The method for producing a thermal sensor using ultra-fine wires according to claim 1, characterized in that: The method for marking the location where the problem exists in step S3 includes: grayscale processing is performed on the acquired wire winding image to obtain a grayscale image; Smooth the grayscale image by Gaussian filtering; Based on the Gaussian filtered image, the fixed winding area on the capillary is extracted as the region of interest and binarized to highlight the edge of the wire. The wire edge is extracted by the Canny operator, and the segmented coils on the capillary and the adjacent winding distribution in each segment of the coil are judged by the straight line detection operator to detect whether the winding is uniform and whether there are gaps. Calculate the spacing between the segmented coils on the capillary tube and the spacing between adjacent windings in each segmented coil. If the spacing is smaller than the corresponding preset value, overlapping problems may occur; if the spacing is larger than the corresponding preset value, misalignment or loose winding may occur. When a defect in the winding is identified, the coordinates of the defective area are recorded and displayed.

6. The method for producing a thermal sensor using ultra-fine wires according to claim 5, characterized in that: The method for extracting the fixed winding area on the capillary as the region of interest based on the Gaussian filtered image includes: Extracting the contour of the wound capillary; According to the coordinates corresponding to the two contours of the capillary , ,according to , , , Fitting to obtain the capillary centerline coordinates , and the midline equation ,in, , , To take the absolute value; Set the winding starting point , single coil length , then the winding starting point and single coil length Substituting into the midline equation, the identified area is , , and the identified area is taken as the region of interest, where is the adjustment factor, , is the capillary radius, is the wire diameter; When the capillary has a segmented coil, the method for dividing the identification area of ​​the first segment of the segmented coil is the same as the method for obtaining the region of interest of the single segment coil. After that, the identification area corresponding to each segment of the coil is expressed as: , , and the identification area corresponding to each subsequent coil is taken as the region of interest, where , , is the length of each coil, is the spacing width between adjacent coils, Indicates that the current coil area is the first coil wound on the capillary. Segment coil.

7. A thermal sensor production system using ultra-fine wires, characterized in that: include: Control module: used to control the rotation of the capillary through the third driving motor, drive the wire from the coil frame to pass through the wire needle to be wound on the capillary to be wound, and drive the wire needle to adjust its position by controlling the rotation of the second driving motor connected to the wire needle to guide the wire to move in the direction of the capillary to be wound; Adjustment module: used for obtaining the wire tension collected by the tension sensor arranged before the wire needle during the process of winding the wire onto the capillary, and controlling the first drive motor connected to the coil frame to adjust the rotation speed according to the obtained wire tension to change the rotation speed of the coil frame, thereby keeping the wire tension within a preset tension range; The judgment module is used to obtain the wire winding image of the capillary after the capillary winding is completed, and judge whether there is a problem with the winding according to the wire winding image. If there is a problem, the location of the problem is marked; If there are no issues, the test is complete.

8. A thermal sensor, characterized in that: The thermal sensor is manufactured by the method for producing a thermal sensor using ultra-fine wires as claimed in any one of claims 1 to 6.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for producing a thermal sensor using an ultra-fine wire according to any one of claims 1 to 6 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for producing a thermal sensor using an ultra-fine wire according to any one of claims 1 to 6 are implemented.

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