Wine bottle thickness measuring instrument and use method thereof

Abstract

The wine bottle thickness measuring instrument is composed of a main body structure and a magnetic field measuring unit, the magnetic field measuring unit comprises a magnetic field inductive sensor and a permanent magnet assembly which form a magnetic field distance measuring system, and an electric signal output by the magnetic field inductive sensor is in linear correlation with the magnetic field intensity of the environment where the magnetic field inductive sensor is located; the main control module is electrically connected with the magnetic field measurement unit, pre-stores a magnetic field intensity B and distance d calibration data set matched with the permanent magnet assembly, reads an electric signal output by the magnetic field induction sensor, converts the electric signal into an actual magnetic field intensity value, selects a reference data set based on the calibration data set, and sends the reference data set to the permanent magnet assembly; the distance between the magnetic field inductive sensor and the permanent magnet assembly is calculated through a preset algorithm, and the distance is the thickness of the bottle wall of the wine bottle. The invention provides a wine bottle thickness measuring instrument with high precision, portability and non-contact measurement, so as to promote the standardization process of the wine identification and collection industry.

Description

Technical Field

[0001] This invention relates to the field of wine bottle thickness measurement technology, specifically to a wine bottle thickness measuring instrument and its usage method. Background Technology

[0002] As the core carrier for storing wine, the thickness of the bottle wall not only directly affects the physical stability of the bottle (such as impact resistance and leakage resistance), but is also a key basis for authenticating wine. Some counterfeit high-end wine products have significantly different bottle wall thicknesses from genuine products due to deteriorated production processes.

[0003] In existing technologies, methods for measuring the thickness of glass bottle walls can be divided into two main categories: contact measurement and non-contact measurement. Both types of technologies have significant drawbacks when applied to the specific scenarios of measuring bottle thickness. Contact measurement, with calipers as its core representative, is currently the most commonly used method by small and medium-sized institutions and individual collectors. However, the limitations of this technology can no longer meet the industry's demand for precision measurement. Non-contact measurement is represented by ultrasonic thickness gauges and general-purpose magnetic field ranging devices. Ultrasonic thickness gauges can cost tens of thousands of yuan each. They require the application of a coupling agent between the sensor and the bottle wall to eliminate the influence of air gaps on sound wave transmission. However, the coupling agent is prone to residue on the bottle surface, and improper cleaning can damage the bottle label or coating. In special environments such as low temperature and dryness, the coupling agent is prone to solidification or volatilization, further reducing measurement stability.

[0004] General-purpose magnetic field ranging devices combine general-purpose permanent magnets and Hall effect sensors. However, in practical applications, the individual magnetic field differences of the permanent magnet beads are not considered. The magnetic field strength of different batches of beads varies greatly, directly leading to measurement errors. Furthermore, the devices are not calibrated for the magnetic field shielding characteristics of the glass material of wine bottles, further amplifying the measurement error. Therefore, developing a dedicated device for measuring the thickness of wine bottles is crucial to solving this industry pain point. Summary of the Invention

[0005] The present invention aims to provide a wine bottle thickness measuring instrument and its usage method. It provides a pen-type wine bottle thickness measuring instrument with high precision, portability and non-contact measurement as its core advantages, filling the market gap and promoting the standardization process of the wine identification and collection industry.

[0006] To achieve the above objectives, this application provides the following technical solution: A wine bottle thickness measuring instrument comprises a main structure and a magnetic field measuring unit. The magnetic field measuring unit includes a magnetic field induction sensor and a permanent magnet assembly forming a magnetic field distance measurement system. The electrical signal output by the magnetic field induction sensor is linearly correlated with the magnetic field strength of the surrounding environment. A main control module is electrically connected to the magnetic field measuring unit. The main control module pre-stores a calibration dataset of magnetic field strength B and distance d matching the permanent magnet assembly. The main control module reads the electrical signal output by the magnetic field induction sensor and converts it into an actual magnetic field strength value. Based on the calibration dataset, a reference data group is selected, and the distance between the magnetic field induction sensor and the permanent magnet assembly is calculated using a preset algorithm. This distance is the thickness of the wine bottle wall.

[0007] As a preferred option, the preset algorithm is a three-point approximation calculation method: Two sets of reference data (d1, B1) and (d2, B2) from the calibration dataset that are closest to the actual magnetic field strength value are selected. Let the actual measured magnetic field strength be B0, and the thickness of the bottle wall to be determined be d0. Then, using the formula d0 = (d2, B1) / d2, the magnetic field strength can be approximated. d1) (B1) B2) / (B1) d0 is obtained by calculating B0) + d1.

[0008] As a preferred embodiment, the magnetic field sensor is a linear Hall sensor, and the permanent magnet assembly is a neodymium iron boron magnetic bead.

[0009] As a preferred embodiment, the acquisition interval of the calibration dataset is 0.05mm~0.2mm, and the ranging coverage range is 0.1mm~5mm.

[0010] As a preferred embodiment, the diameter of the magnetic bead is 4~6mm.

[0011] As a preferred embodiment, the main control module also integrates an error compensation algorithm, including: a temperature compensation algorithm, used to correct the detection error caused by temperature drift of the magnetic field sensor; and a digital filtering algorithm, used to suppress dynamic interference caused by the ambient magnetic field.

[0012] As a preferred embodiment, the length of the main structure is 120mm~180mm and the diameter is 20mm~30mm.

[0013] As a preferred embodiment, the head of the main structure is an arc-shaped probe structure, with the arc curvature radius adapted to the curvature of the wine bottle.

[0014] A method of using a measuring instrument includes: S1. Place the main test magnetic bead inside the wine bottle, and use the auxiliary magnetic bead to attract the main test magnetic bead and move it to the test position; S2. After fixing the wine bottle, remove the auxiliary magnetic bead. One end of the main structure integrating the linear Hall sensor is placed close to the corresponding position on the outside of the wine bottle. The thickness measurement is triggered by the measurement button. The main control module collects the electrical signal output by the linear Hall sensor, performs data calculation, and outputs the measurement result.

[0015] Working principle and beneficial effects of the present invention: In existing technologies, contact calipers for measuring the thickness of wine bottles have problems such as poor compatibility with curved bottle bodies, easy scratching of the bottle body, and large errors. General ultrasonic thickness gauges require coupling agent assistance, have poor portability and high cost. General magnetic field ranging equipment lacks a dedicated calibration system and does not perform error compensation for wine bottle scenarios, resulting in insufficient measurement accuracy and stability.

[0016] This measuring instrument combines a linear Hall sensor with neodymium iron boron magnetic beads to form a dedicated magnetic field ranging system. By pre-storing matched B and d calibration datasets and using a three-point approximation calculation method, it solves the measurement deviation problem caused by individual differences in magnets and the lack of precise algorithms in general magnetic field equipment, and further improves the measurement accuracy. Attached Figure Description

[0017] Figure 1 A schematic diagram of a wine bottle thickness measuring instrument; Figure 2 For data processing curves; Figure 3 Design a flowchart for the hardware circuit; Figure 4 A photograph of a wine bottle being measured using a CHY-B2 wall thickness tester. Figure 5 Bottles used to mark measurement points; Figure 6 The image shows the actual Tesla Model TD8620. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method: Example: A wine bottle thickness measuring instrument, such as Figure 1 and Figure 3 The system consists of a linear Hall sensor located at the pen tip and a permanent magnet bead located at the pen tail, forming the measurement unit. The Hall sensor (Hall plate + Hall plate mounting plate) outputs an analog voltage signal proportional to the magnetic field strength of its environment. The main control module is a microcontroller, which reads the electrical signal output by the Hall sensor and converts it into the actual magnetic field strength value. It also integrates an LCD screen, a Type-C charging port, buttons, etc.

[0019] According to the principles of physics, the magnetic field strength generated by a magnetic bead is inversely proportional to the square of the distance between it and the sensor, which can be simplified as follows:

[0020] Where B is the magnetic field strength, and d is the distance between the magnetic bead and the sensor (i.e., the bottle wall thickness). Since it's impossible for every permanent magnet bead to have the same magnetic field, the measuring instrument must be paired with each bead individually. During instrument manufacturing, it's necessary to measure the magnetic field strength distribution of the matching magnetic beads, taking measurements at 0.1mm intervals, starting from 0.1mm and continuing up to 5mm. The experimental data is then distributed and written into the chip program, as shown in Table 1 below.

[0021] Table 1 - Recording Table of Magnetic Bead Axial Magnetic Field Data

[0022] To improve measurement accuracy, we use the following method for data processing: like Figure 2 As shown, the vertical axis represents the magnetic field strength B, and the horizontal axis represents the distance d between the magnetic bead and the sensor. Points B (d1, B1) and C (d2, B2) are pre-measured data already written into the microcontroller's database, while A (d0, B0) represents the actual measured data, where B0 is the measured data and d0 is unknown data that needs to be calculated using the known data. When points A, B, and C are sufficiently close, we can approximate θ1 ≈ θ2, therefore tanθ1 ≈ tanθ2.

[0023] During measurement, the pen tip and pen tail magnetic beads are placed tightly against the two sides of the bottle wall. The bottle wall thickness is the distance d0. The microcontroller (MCU) reads the voltage value B0 of the Hall sensor. By referring to Table 1, the closest data (d1, B1) and (d2, B2) are used as the reference. The bottle wall thickness d0 can be calculated by substituting them into the formula.

[0024] The testing steps are as follows: S1. Place the main test magnetic bead inside the wine bottle, and use the auxiliary magnetic bead to attract the main test magnetic bead and move it to the test position; S2. After fixing the wine bottle, remove the auxiliary magnetic bead. One end of the main structure integrating the linear Hall sensor is placed close to the corresponding position on the outside of the wine bottle. The thickness measurement is triggered by the measurement button. The main control module collects the electrical signal output by the linear Hall sensor, performs data calculation, and outputs the measurement result.

[0025] To verify the reliability of the method for measuring the thickness of wine bottles according to this invention, a CHY-B2 wall thickness tester (with attachment) manufactured by Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. was selected. Figure 4 The thickness of the wine bottle was measured, and the measured value was used as a reference value for the method of this invention; Appendix Figure 5 For marking the measurement points on the wine bottle, attached Figure 6The device used is a TD8620 Tesla meter manufactured by Changsha Tianheng Measurement and Control Technology Co., Ltd. It acquires data from a wine bottle where the internal magnetic bead is securely attracted to the measurement point by the external magnetic bead. A CHY-B2 wall thickness tester measures the thickness at the measurement point to be approximately 3.74 mm, and the TD8620 Tesla meter measures the magnetic field value at the measurement point to be approximately 24 mT (N pole). Referring to Table 1, the data is then analyzed using the attached... Figure 2 Data processing calculations showed that the thickness of the wine bottle at the measurement point was approximately 3.79 mm. The two methods differed by 0.05 mm, and the relative error of the method of this invention compared to the former was 1.3%. The small error indicates that the measurement method of this invention is reliable.

[0026] It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this invention. These modifications and improvements should also be considered within the scope of protection of this invention, and will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A wine bottle thickness gauge, characterized by, The application relates to a wine bottle wall thickness measuring device, which comprises a main body structure and a magnetic field measuring unit, wherein the magnetic field measuring unit comprises a magnetic field induction sensor and a permanent magnet assembly which form a magnetic field ranging system, the magnetic field induction sensor outputs an electric signal which is linearly related to the magnetic field intensity of the environment; a main control module is electrically connected with the magnetic field measuring unit, the main control module prestores a magnetic field intensity B and distance d calibration data set matched with the permanent magnet assembly, the main control module reads the electric signal output by the magnetic field induction sensor and converts the electric signal into an actual magnetic field intensity value, selects a reference data group based on the calibration data set, calculates the distance between the magnetic field induction sensor and the permanent magnet assembly through a preset algorithm, and the distance is the wine bottle wall thickness.

2. The wine bottle thickness gauge of claim 1, wherein, The preset algorithm is a three-point approximate calculation method: two groups of reference data (d1, B1) and (d2, B2) closest to the actual magnetic field strength value in the calibration data set are selected, it is assumed that the actually measured magnetic field strength is B0, and the to-be-solved bottle wall thickness is d0, and d0 is calculated through the formula d0=(d2 d1) (B1 B2) / (B1 B0) + d1.

3. The wine bottle thickness gauge of claim 2, wherein, The magnetic field induction sensor is a linear Hall sensor, and the permanent magnet assembly is a magnetic bead made of neodymium iron boron.

4. The wine bottle thickness gauge of claim 3, wherein, The calibration data set has a collection interval of 0.05mm-0.2mm and a ranging coverage of 0.1mm-5mm.

5. The wine bottle thickness gauge of claim 4, wherein, The diameter of the magnetic bead is 4-6mm.

6. The wine bottle thickness gauge of claim 5, wherein, The main control module further integrates an error compensation algorithm, which comprises a temperature compensation algorithm for correcting the detection error of the magnetic field induction sensor caused by temperature drift and a digital filtering algorithm for inhibiting the dynamic interference caused by the environmental magnetic field.

7. The wine bottle thickness gauge of claim 6, wherein, The length of the main body structure is 120mm-180mm, and the diameter is 20mm-30mm.

8. The wine bottle thickness gauge of claim 7, wherein, The head of the main body structure is an arc-shaped probe structure, and the arc curvature radius is adapted to the curved radian of the wine bottle.

9. Use of a measuring instrument according to any one of claims 3 to 8, characterized in that, The application further discloses a wine bottle wall thickness measuring method, which comprises the following steps: S1, placing a main measuring magnetic bead on the inner side of a wine bottle, absorbing the main measuring magnetic bead through an auxiliary magnetic bead and moving the main measuring magnetic bead to a position to be measured; S2, after fixing the wine bottle, removing the auxiliary magnetic bead, tightly abutting one end of the main body structure integrated with a linear Hall sensor to a corresponding position on the outer side of the wine bottle, triggering thickness measurement through a measurement button, collecting the electric signal output by the linear Hall sensor by the main control module, performing data calculation and outputting a measurement result.

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