Measuring device and method of mounting the same

Abstract

To provide a measuring device capable of improving the accuracy of sensor output. [Solution] The measuring device includes a base layer 10 having a cylindrical shape, wrapped around the user's arm, and made of an elastic material; a protective layer 30 made of an elastic material, which includes a sensor unit 20 placed on the base layer 10 to detect pressure; a flat member 31 covering the sensor unit 20; and a string 32 for wrapping the flat member 31 around the base layer 10; and a fixed layer 40 having a cylindrical shape, covering the protective layer 30, and made of an elastic material.

Description

Technical Field

[0001] The present invention relates to a measuring device and a method of attaching the same.

Background Art

[0002] Piezoelectric sensors using the piezoelectric effect are known. Piezoelectric sensors using organic piezoelectric materials such as P(VDF / TrFE) are used. Since organic piezoelectric materials can be formed by coating, can be manufactured by a low-temperature process, and can be easily formed into a film, applications to flexible sensors for wearable devices and the like have been attempted. For example, a piezoelectric sensor is attached to the user's arm and detects the displacement of the skin as pressure.

[0003] When a sensor such as a piezoelectric sensor is directly attached to the skin, the output of the sensor changes depending on the attachment location and method. Since the surface of the skin has complex irregularities, it is impossible to make the degree of adhesion of the sensor the same for each attachment.

[0004] When the sensor is fixed to the arm with a belt, the output of the sensor changes depending on the tightening strength of the belt. Since the belt has a structure fixed at one end, wrinkles are likely to occur at the fixed portion, and discontinuous portions in a compressed state occur. In the method of fixing one end of the belt and winding it around the arm, it is difficult to make the same tightening strength for each attachment. When the tightening strength changes, the output of the sensor also changes, and the reproducibility of the output decreases.

[0005] When the sensor is fixed to the arm with an elastic band (such as a rubber band) in order to make the tightening strength constant, the sensor is caught by the contraction of the band, and wrinkles are likely to occur in the sensor. Since wrinkles occur randomly, the reproducibility of the output decreases, leading to damage to the sensor.

[0006] It is difficult to attach sensors using a pocket-like device with an elastic band. Furthermore, it is difficult to attach sensors to a pocket after the elastic band has been attached. If the sensors are attached to the pocket first, the elastic band stretches considerably during attachment, causing wrinkles to form on the sensors. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2020-156659 [Overview of the project] [Problems that the invention aims to solve]

[0008] The present invention provides a measuring device and a method for mounting the same that can improve the accuracy of sensor output. [Means for solving the problem]

[0009] According to a first aspect of the present invention, a measuring device is provided comprising: a base layer having a cylindrical shape, being wrapped around the user's arm and made of an elastic material; a protective layer made of an elastic material, including a sensor unit disposed on the base layer for detecting pressure; a flat member covering the sensor unit; and a string for wrapping the flat member around the base layer; and a fixed layer having a cylindrical shape, covering the protective layer and made of an elastic material.

[0010] According to a second aspect of the present invention, a measuring device according to the first aspect is provided, wherein the base layer has a first marker and a second marker that are visible by color, the first marker has the same shape as the outer shape of the sensor part, and the second marker has the same shape as the outer shape of the protective layer.

[0011] According to a third aspect of the present invention, a measuring device according to the second aspect is provided, wherein the sensor portion is arranged in accordance with the first marker, and the protective layer is arranged in accordance with the second marker.

[0012] According to a fourth aspect of the present invention, a measuring device according to the first aspect is provided, wherein the protective layer has a third marker that is visible by color, and the third marker has the same shape as the outer shape of the fixed layer.

[0013] According to a fifth aspect of the present invention, a measuring device according to the fourth aspect is provided, wherein the fixed layer is arranged in accordance with the third marker.

[0014] According to a sixth aspect of the present invention, a measuring device is provided comprising: a cylindrical base layer made of an elastic material that is wrapped around the user's arm; a sensor unit disposed on the base layer for detecting pressure; a protective layer made of an elastic material that is configured to cover the sensor unit and is partially fixed to the base layer using a fixing member; and a fixed layer made of an elastic material that is cylindrical and covers the protective layer.

[0015] According to a seventh aspect of the present invention, a measuring device according to the first or sixth aspect is provided, wherein the sensor part is flexible.

[0016] According to an eighth aspect of the present invention, a measuring device according to the first or sixth aspect is provided, wherein the sensor unit includes a plurality of sensor elements, each extending in the direction of extension of the user's arm and arranged in a direction perpendicular to the direction of extension.

[0017] According to a ninth aspect of the present invention, a measuring device according to the first or sixth aspect is provided, wherein the base layer, the protective layer, and the fixing layer are composed of silicone rubber or an elastic gel.

[0018] A tenth aspect of the present invention is provided, a method for attaching a measuring device according to the first aspect, comprising the steps of: wrapping the base layer around the user's arm; wrapping the protective layer on the base layer; wrapping the fixing layer on the protective layer; peeling off a portion of the fixing layer; peeling off a portion of the protective layer; placing the sensor portion on the base layer; returning the protective layer; and returning the fixing layer.

Advantages of the Invention

[0019] According to the present invention, it is possible to provide a measuring device capable of improving the accuracy of sensor output and a method of mounting the same.

Brief Description of the Drawings

[0020] [Figure 1] FIG. 1 is a plan view of a measuring device according to a first embodiment of the present invention. [[ID=!15]] [Figure 2] FIG. 2 is a cross-sectional view of the measuring device shown in FIG. 1. [Figure 3] FIG. 3 is a plan view of a base layer. [Figure 4] FIG. 3 is a plan view of a sensor unit. [Figure 5] FIG. 5 is a block diagram of the sensor unit. [Figure 6] FIG. 6 is a plan view of a protective layer. [Figure 7] [[ID=3@]]FIG. 7 is a perspective view of the protective layer. [Figure 8] FIG. 8 is a plan view of a fixing layer. [Figure 9] FIG. 9 is a flowchart for explaining a method of mounting the measuring device. [Figure 10] FIG. 10 is a diagram for explaining one step of the method of mounting the measuring device. [Figure 11] FIG. 11 is a diagram for explaining one step of the method of mounting the measuring device. [Figure 12] FIG. 12 is a diagram for explaining one step of the method of mounting the measuring device. [Figure 13] FIG. 13 is a diagram for explaining one step of the method of mounting the measuring device. [Figure 14] FIG. 14 is a diagram for explaining one step of the method of mounting the measuring device. [Figure 15] FIG. 15 is a schematic diagram for explaining the measuring operation of the measuring device. [Figure 16] FIG. 16 is a diagram for explaining an example of measurement signals of 1ch to 12ch. [Figure 17]Figure 17 shows the results of determining the maximum value of the measured signals for channels 1 through 12. [Figure 18] Figure 18 shows the results of determining the minimum value of the measurement signals for channels 1 through 12. [Figure 19] Figure 19 is a plan view of the protective layer according to a second embodiment of the present invention. [Figure 20] Figure 20 is a plan view of the substrate according to the third embodiment of the present invention. [Figure 21] Figure 21 is a plan view of the protective layer. [Figure 22] Figure 22 is a plan view of the fixed layer. [Modes for carrying out the invention]

[0021] The embodiments will be described below with reference to the drawings. However, the drawings are schematic or conceptual, and the dimensions and proportions in each drawing are not necessarily the same as those in reality. Furthermore, even when the same part is represented between drawings, the relationship between dimensions and proportions may be represented differently. In particular, the embodiments shown below are illustrative examples of devices and methods for realizing the technical concept of the present invention, and the technical concept of the present invention is not determined by the shape, structure, arrangement, etc. of the components. In the following description, elements having the same function and configuration are denoted by the same reference numerals, and redundant descriptions are omitted.

[0022] [1] First Embodiment [1-1] Configuration of measuring device 1 Figure 1 is a plan view of a measuring device 1 according to a first embodiment of the present invention. Figure 2 is a cross-sectional view of the measuring device 1 shown in Figure 1. Figure 2 is a cross-sectional view of the measuring device 1 cut in a direction perpendicular to the direction in which the arm extends.

[0023] The measuring device 1 is used by wrapping it around the user's arm 2. The measuring device 1 detects pressure from the skin at the attachment point, specifically the movement of muscles and tendons at the attachment point. For example, based on the detection results, the measuring device 1 estimates the operation (movement) of the user's five fingers. The measuring device 1 comprises a base layer 10, a sensor unit 20, a protective layer 30, a fixing layer 40, and a control unit 50.

[0024] A base layer 10 is attached to the user's arm 2 so as to be in contact with the arm 2. A sensor unit 20 is placed on the base layer 10. A protective layer 30 is attached on the sensor unit 20. A fixing layer 40 is attached on the protective layer 30. A control unit 50 is attached to the fixing layer 40. The following describes in detail each component that makes up the measuring device 1.

[0025] Figure 3 is a plan view of the base layer 10. The base layer 10 has a cylindrical shape. The base layer 10 is made of an elastic insulating material. The base layer 10 is made of, for example, silicone rubber or an elastic gel. The base layer 10 is wrapped around the arm 2 so as to be in direct contact with the arm 2. The base layer 10 has the function of absorbing the irregularities of the skin, thereby suppressing the deterioration of measurement accuracy due to the influence of skin irregularities.

[0026] The base layer 10 has two types of markers 11 and 12. Markers 11 and 12 are composed of multiple lines. Markers 11 and 12 have a different color from the base material of the base layer 10 and are configured to be visually recognizable by color. Marker 11 has the same shape as the outer shape of the sensor unit 20 and is used as a guide when attaching the sensor unit 20. Marker 11 is set appropriately to match the outer shape of the sensor unit 20. Marker 12 has the same shape as the outer shape of the protective layer 30 and is used as a guide when attaching the protective layer 30. Marker 12 is set appropriately to match the outer shape of the protective layer 30. The base layer 10 is attached to the arm 2 with the markers 11 and 12 positioned on the palm side.

[0027] Figure 4 is a plan view of the sensor unit 20. Figure 5 is a block diagram of the sensor unit 20. In Figure 5, the X direction is along one side of the sensor unit 20, and the Y direction is perpendicular to the X direction. The Y direction is the same direction as the extension direction of the arm 2.

[0028] The sensor unit 20 has, for example, a rectangular shape. The sensor unit 20 is positioned on the palm side and is positioned to cover, for example, the muscles and tendons of five fingers (thumb, index finger, middle finger, ring finger, and little finger). The sensor unit 20 is positioned on the base layer 10 and aligned with the marker 11 on the base layer 10.

[0029] The sensor unit 20 is composed of a piezoelectric sensor. The sensor unit 20 detects the applied pressure. The sensor unit 20 comprises a plurality of sensor elements 21. Each of the plurality of sensor elements 21 is, for example, a rectangle with its longitudinal direction in the Y direction. The plurality of sensor elements 21 are arranged in a line in the X direction. The sensor elements 21 are composed of piezoelectric elements. The sensor element 21 comprises a lower electrode, an upper electrode, and a piezoelectric layer sandwiched between them. The sensor element 21 is protected at the top and bottom by two insulating layers.

[0030] The sensor unit 20 is configured to be flexible. Specifically, the sensor unit 20 is configured to include a flexible substrate, a flexible piezoelectric layer, and flexible upper and lower protective layers.

[0031] Figure 6 is a plan view of the protective layer 30. Figure 7 is a perspective view of the protective layer 30. The protective layer 30 comprises a rectangular planar member 31 and a string 32. The planar member 31 and the string 32 are made of an elastic insulating material. The planar member 31 and the string 32 are made of, for example, silicone rubber or an elastic gel.

[0032] The flat member 31 has a larger area than the sensor portion 20. The flat member 31 is positioned to cover the sensor portion 20. The string 32 is connected to both ends of the flat member 31 in a direction perpendicular to the direction in which the arm 2 extends. The string 32 is configured to wrap around the base layer 10. The protective layer 30 protects the sensor portion 20 and functions to prevent wrinkles from forming on the sensor portion 20.

[0033] The protective layer 30 has a marker 33. The marker 33 is composed of lines. The marker 33 has a different color from the planar member 31 and is configured to be visually recognizable by color. The marker 33 has the same shape as the outer shape of the fixed layer 40 and is used as a guide when attaching the fixed layer 40. In the example in Figure 6, the marker 33 is formed to match the position of the edge of the fixed layer 40. The marker 33 is set appropriately to match the outer shape of the fixed layer 40.

[0034] Figure 8 is a plan view of the fixed layer 40. In Figure 8, the control unit 50 connected to the fixed layer 40 is not shown. The fixed layer 40 has a cylindrical shape. The fixed layer 40 is made of an expandable insulating material. The fixed layer 40 is made of, for example, silicone rubber or an expandable gel. The fixed layer 40 is positioned to match the marker 33 of the protective layer 30. The fixed layer 40 has the function of fixing the base layer 10, the sensor unit 20, and the protective layer 30 as a whole.

[0035] The control unit 50 is connected to the sensor unit 20 using multiple wires (not shown). The sensor unit 20 may also be connected to the control unit 50 wirelessly via a communication unit. Specifically, only a wireless communication unit may be provided on the sensor unit 20 or the fixed layer 40, and the control unit 50 may be located at a distance from the measuring device 1.

[0036] The control unit 50 controls the operation of the sensor unit 20. The control unit 50 comprises one or more processors, such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), and a memory unit. The processors included in the control unit 50 realize various functions by executing programs stored in the memory unit.

[0037] The memory unit stores various data necessary for the operation of the measuring device 1 and also functions as a workspace for the processor. The memory unit includes volatile memory and non-volatile memory. The volatile memory includes RAM (Random Access Memory) and registers, etc. The non-volatile memory includes ROM (Read Only Memory), HDD (Hard Disk Drive), and SSD (Solid State Drive), etc.

[0038] [1-2] Method of mounting measuring device 1 Next, we will explain how to attach the measuring device 1. Figure 9 is a flowchart illustrating how to attach the measuring device 1.

[0039] First, as shown in Figure 3, the base layer 10 is wrapped around the user's arm 2 (step S100). At this time, the base layer 10 is attached to the arm 2 so that the markers 11 and 12 are located on the palm side. In addition, the markers 11 of the base layer 10 are positioned to overlap the muscles and tendons of the five fingers.

[0040] Next, as shown in Figure 6, the protective layer 30 is wrapped around the base layer 10 (step S101). The protective layer 30 is positioned to match the markers 12 on the base layer 10.

[0041] Next, as shown in Figure 8, the fixing layer 40 is wrapped around the protective layer 30 (step S102). The fixing layer 40 is positioned to match the marker 33 on the protective layer 30.

[0042] Next, as shown in Figure 10, a portion of the fixed layer 40 is peeled back (step S103). Specifically, the elbow-side end of the fixed layer 40 is peeled back. This exposes a portion of the protective layer 30.

[0043] Next, as shown in Figure 11, a portion of the protective layer 30 is peeled off (step S104). Specifically, the elbow-side edge of the protective layer 30 is peeled off. This exposes a portion of the base layer 10 and the marker 11 of the base layer 10.

[0044] Next, as shown in Figure 12, the sensor unit 20 is placed on the base layer 10 (step S105). The sensor unit 20 is positioned to align with the marker 11 on the base layer 10.

[0045] Next, as shown in Figure 13, the protective layer 30 is returned (step S106). Then, as shown in Figure 14, the fixed layer 40 is returned (step S107). In this way, the measuring device 1 is installed.

[0046] [1-3] Operation The operation of the measuring device 1, configured as described above, will now be explained. Figure 15 is a schematic diagram illustrating the measurement operation of the measuring device 1. The user is expected to bend any finger from an extended position. Figure 15(a) shows the user with all fingers extended, and Figure 15(b) shows the user with their thumb bent.

[0047] The measuring device 1 includes, for example, 12 sensor elements 21. Each sensor element 21 is called a channel (ch). The 12 sensor elements 21 correspond to channels 1 through 12. Figure 15 schematically shows channels 1 through 12. The measuring device 1 is set so that the little finger side is channel 1 and the thumb side is channel 12. The user moves their finger from the state shown in Figure 15(a) to the state shown in Figure 15(b). Channels 1 through 12 each output a measurement signal consisting of a voltage signal.

[0048] When a user moves their fingers, the muscles in their arm move in accordance with the finger movement, causing the skin to displace. In response to the skin displacement, each sensor element 21 generates and outputs a measurement signal. The measurement signal has an amplitude corresponding to the magnitude of the movement and is generated with a waveform corresponding to the time of the movement.

[0049] Figure 16 illustrates an example of measurement signals for channels 1 to 12. In Figure 16, the horizontal axis represents time (s), and the vertical axis represents the measurement signals (V) for channels 1 to 12. In this embodiment, as an example, the sensor element 21 is configured such that the measurement signal (voltage value) decreases as the pressure increases.

[0050] The control unit 50 determines the maximum (Max) and minimum (Min) values ​​of the measurement signal for each channel. In the 12-channel example in Figure 16, when the thumb is bent, the maximum value of the measurement signal is determined to be 0.2V and the minimum value to be 0V.

[0051] Figure 17 shows the result of determining the maximum value of the measurement signals for channels 1 to 12. Figure 18 shows the result of determining the minimum value of the measurement signals for channels 1 to 12. Figures 17 and 18 correspond to the measurement signals when the thumb is bent in Figure 16. The control unit 50 estimates the user's finger movement by determining the maximum and minimum values ​​of the measurement signals for channels 1 to 12.

[0052] A measuring device 1 according to this embodiment was fabricated and experimented with. In the experiment, with the measuring device 1 attached to the arm, the five fingers were moved from a bent position to an extended position, and then from an extended position to an extended position to an extended position, and the measurement signals were collected. The finger movements were judged using the average value of five measurements. Measurements were taken by repeating the attachment of the measuring device 1 twice, and the measurement signals from each attachment were compared. Each time the device was attached, all components were removed before being attached again.

[0053] In this embodiment, the difference in measurement signals can be reduced even when the measuring device 1 is repeatedly attached. It was confirmed that the structure of the measuring device 1 in this embodiment can reduce the influence of the way it is attached and the unevenness of the skin. Furthermore, it was confirmed that the variability of the measurement signals can be reduced even when the measuring device 1 is repeatedly attached.

[0054] Furthermore, a measuring device relating to a comparative example was fabricated and experiments were conducted. In the comparative example, the sensor part was fixed to the arm using a hook-and-loop fastener belt instead of the fixing layer 40. The base layer, sensor part, and protective layer were the same as those used in this embodiment. The hook-and-loop fastener belt has low elasticity, and the tightening strength varies each time it is worn.

[0055] In the comparative example, the same operation as in the experiment of this embodiment was performed, and the measurement signal was measured. In the comparative example, the measurement signal changed significantly between the first and second attachments. In the comparative example, the tightness of the hook-and-loop fastener belt greatly affected the measurement signal. In the comparative example, it was confirmed that the reproducibility of the measurement signal was low.

[0056] [1-4] Effects of the first embodiment In the first embodiment, the base layer 10 is wrapped around the user's arm 2 as a base for the sensor unit 20. This makes the sensor unit 20 less susceptible to the effects of uneven skin.

[0057] Furthermore, the sensor unit 20 is fixed using the fixed layer 40. This allows the tightening force of the sensor unit 20 to be kept approximately constant.

[0058] Furthermore, the sensor portion 20 is covered with a protective layer 30. This prevents wrinkles from forming on the sensor portion 20 due to the expansion and contraction of the fixed layer 40.

[0059] Therefore, according to the first embodiment, the accuracy of the sensor output (measurement signal) can be improved. Furthermore, the reproducibility of the sensor output can be improved. Additionally, the finger movement detection operation can be performed more accurately.

[0060] [2] Second embodiment The second embodiment is another example of the configuration of the protective layer 30.

[0061] Figure 19 is a plan view of a protective layer 30 according to a second embodiment of the present invention. The protective layer 30 has, for example, a rectangular shape. The protective layer 30 is partially fixed to the base layer 10. At the palm-side end, the protective layer 30 is fixed to the base layer 10 by a fixing member 34. The fixing member 34 is made of, for example, an adhesive. The other configurations are the same as in the first embodiment.

[0062] The method for attaching the measuring device 1 involves peeling back one end of the protective layer 30 and positioning the sensor unit 20 in line with the marker 11 on the base layer 10.

[0063] According to the second embodiment, the method of mounting the measuring device 1 can be simplified. Other effects are the same as in the first embodiment.

[0064] [3] Third embodiment The third embodiment is another example of a method for fixing components. In the third embodiment, multiple components are fixed using snap buttons.

[0065] Figure 20 is a plan view of the base layer 10 according to the third embodiment of the present invention. The measuring device 1 includes a snap button 60. The snap button is also called a hook button. The snap button 60 is composed of a pair of recessed parts 60A and protruding parts 60B. The recessed part 60A of the snap button 60 is attached to the base layer 10. The recessed part 60A of the snap button 60 is positioned on the palm side of the center of the base layer 10.

[0066] Figure 21 is a plan view of the protective layer 30. The protrusion 60B of the snap button 60 is attached to the surface of the protective layer 30 facing the base layer 10. The protrusion 60B of the snap button 60 is positioned on the palm side of the center of the protective layer 30. When the protective layer 30 is attached, the protrusion 60B of the snap button 60 is connected to the recess 60A of the snap button 60.

[0067] The measuring device 1 includes a snap button 61. The snap button 61 consists of a pair of recessed parts 61A and protruding parts 61B. The recessed part 61A of the snap button 61 is mounted on the protective layer 30. The recessed part 61A of the snap button 61 is positioned on the palm side of the center of the protective layer 30.

[0068] Figure 22 is a plan view of the fixed layer 40. The protrusion 61B of the snap button 61 is attached to the surface of the fixed layer 40 facing the protective layer 30. The protrusion 61B of the snap button 61 is positioned on the palm side of the center of the fixed layer 40. When the fixed layer 40 is attached, the protrusion 61B of the snap button 61 is coupled to the recess 61A of the snap button 61.

[0069] According to the third embodiment, the method of mounting the measuring device 1 can be simplified. Other effects are the same as in the first embodiment.

[0070] The present invention is not limited to the embodiments described above, and can be modified in various ways during implementation without departing from its essence. Furthermore, each embodiment may be combined as appropriate, and in that case, the combined effects can be obtained. Moreover, the above embodiments include various inventions, and various inventions can be extracted by selecting combinations from the multiple constituent elements disclosed. For example, if the problem can be solved and effects obtained even if some constituent elements are deleted from all the constituent elements shown in the embodiment, then the configuration with these deleted constituent elements can be extracted as an invention. [Explanation of symbols]

[0071] 1... Measuring device, 2... Arm, 10... Base layer, 11, 12... Marker, 20... Sensor unit, 21... Sensor element, 30... Protective layer, 31... Flat member, 32... String, 33... Marker, 34... Fixing member, 40... Fixing layer, 50... Control unit, 60, 61... Snap button.

Claims

1. A cylindrical base layer made of a stretchable material that can be wrapped around the user's arm, A sensor unit for detecting pressure is placed on the aforementioned subsoil layer, A protective layer comprising a flat member covering the sensor portion and a string for wrapping the flat member around the underlying layer, and made of an elastic material, A fixed layer having a cylindrical shape, covering the protective layer, and made of an expandable material, A measuring device equipped with the following features.

2. The aforementioned underlayer has a first marker and a second marker that are visible by color. The first marker has the same shape as the outer shape of the sensor part, The second marker has the same shape as the outer shape of the protective layer. The measuring device according to claim 1.

3. The sensor unit is positioned in accordance with the first marker, The protective layer is positioned to align with the second marker. The measuring device according to claim 2.

4. The protective layer has a third marker that is visible by color, The third marker has the same shape as the outer shape of the fixed layer. The measuring device according to claim 1.

5. The fixed layer is positioned to match the third marker. The measuring device according to claim 4.

6. A cylindrical base layer made of a stretchable material that can be wrapped around the user's arm, A sensor unit for detecting pressure is placed on the aforementioned subsoil layer, A protective layer is configured to cover the sensor portion, partially fixed to the substrate using a fixing member, and made of an elastic material. A fixed layer having a cylindrical shape, covering the protective layer, and made of an expandable material, A measuring device equipped with the following features.

7. The sensor part has flexibility The measuring device according to claim 1 or 6.

8. The sensor unit includes a plurality of sensor elements, each extending in the direction of the user's arm and arranged in a direction perpendicular to the direction of extension. The measuring device according to claim 1 or 6.

9. The aforementioned base layer, protective layer, and fixing layer are composed of silicone rubber or elastic gel. The measuring device according to claim 1 or 6.

10. A method for mounting the measuring device according to claim 1, The process of wrapping the aforementioned base layer around the user's arm, The process of wrapping the protective layer onto the aforementioned base layer, A step of wrapping the fixing layer around the protective layer, The process of peeling off a portion of the aforementioned fixed layer, The process of peeling off a portion of the protective layer, The steps include: placing the sensor unit on the aforementioned base layer, The process of returning the protective layer, The process of returning the fixed layer, A method for mounting a measuring device equipped with the following.

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