Electrode attaching device for portable fish freshness detector

Abstract

This utility model discloses an electrode attachment device for a portable fish freshness detector, belonging to the field of marine resource monitoring technology. It includes an attachment module and an electrode module. The attachment module adopts a cylindrical structure with protrusions and is covered by an outer sleeve. Buffer adjustment is achieved through the cooperation of the protrusions and damping blocks. The electrode module is fixed to the attachment module via a threaded connection and can integrate multiple sensors such as pH-sensitive electrodes and impedance measurement electrodes. The electrode module adopts a composite probe design, including a micro-puncture section and a contact sensing section, and is equipped with a pressure sensor. Multiple electrodes can be arranged in parallel or concentric arrays, with spacing adjusted using a magnetic slider adjustment mechanism. This utility model's electrode attachment device has functions such as buffer protection, multi-parameter detection, and pressure monitoring, and can adapt to different fish detection needs, significantly improving the accuracy and convenience of fish freshness detection.

Description

Technical Field

[0001] This utility model belongs to the field of marine resource monitoring technology, specifically relating to an electrode attachment device for a portable fish freshness detector. Background Technology

[0002] Bioimpedance technology is a detection technique that utilizes the electrical properties (impedance, admittance, dielectric constant, etc.) of biological tissues and organs and their changing patterns to extract biomedical information related to the physiological and pathological conditions of organisms. Bioimpedance detection technology has become a research hotspot due to its rapid and non-destructive characteristics. However, existing electrode attachment devices still have many technical shortcomings in practical applications: First, traditional rigid electrode structures cannot adaptively adjust contact pressure, easily leading to damage to the fish surface or poor contact, affecting the accuracy of the detection results; second, single-function electrode designs cannot meet the needs of simultaneous detection of multiple parameters such as pH, impedance, and volatile basic nitrogen; third, fixed electrode arrangements cannot adapt to the detection requirements of different species and sizes of fish, especially showing poor detection results for scaled fish and deep-sea fish with thicker skin. In terms of portability, most existing devices are bulky and cannot meet the needs of on-site market testing. These technical bottlenecks severely restrict the widespread application of bioimpedance technology in fish freshness evaluation. Therefore, developing a portable electrode device with buffer adjustment, multi-parameter detection, and adaptive attachment functions is of great significance for improving the accuracy and reliability of fish freshness detection. Summary of the Invention

[0003] The purpose of this invention is to provide an electrode attachment device for a portable fish freshness detector, which enables flexible contact between the electrode and the surface of the fish, ensuring both the integrity of the sample and stable acquisition of electrical signals during the detection process, thereby improving the accuracy of the detection.

[0004] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0005] An electrode attachment device for a portable fish freshness detector includes an attachment module and an electrode module. The attachment module is cylindrical with protrusions. A sleeve surrounds the attachment module, and a damping block inside the sleeve engages with the protrusions, allowing relative displacement between the attachment module and the sleeve. Traditional electrode attachment devices are prone to signal fluctuations or sample damage due to uneven pressure when in contact with fish. Therefore, this invention achieves flexible contact during electrode attachment through the interaction of the damping block and the protrusions, adaptively adjusting the contact force to ensure a tight fit between the electrode and the fish while reducing mechanical impact. This structure is suitable for fish samples of varying hardness, enhancing the versatility and reliability of the device and providing a stable electrical signal foundation for subsequent freshness detection.

[0006] The attachment module is connected to the electrode module via a fastener, and the connection between the fastener and the electrode module is a threaded connection. The threaded connection improves the modularity of the device and simplifies the electrode installation and replacement process. During testing, the electrodes may experience performance degradation due to prolonged use or contamination; the detachable design allows users to quickly replace the electrodes, reducing maintenance costs. Furthermore, dedicated electrode modules can be used to meet different testing needs (such as pH detection, impedance measurement, etc.), improving testing efficiency.

[0007] The attachment module is provided with a cover, which cooperates with the sleeve.

[0008] The cover includes a magnetic slider at its top, which attracts a metal guide rail above, allowing the attachment module to move. Magnetic attraction enables adjustment of the electrode module spacing, providing convenient operation and ensuring the electrodes are in the optimal detection position, suitable for detecting fish of different sizes.

[0009] The electrode module includes a pH-sensitive electrode and / or an impedance measurement electrode and / or a gas sensing electrode. These electrodes can be used individually or in combination to detect different freshness indicators of fish. By combining multiple parameters for detection, fish freshness can be assessed more accurately. For example, the pH-sensitive electrode detects changes in the acidity of the fish flesh, the impedance measurement electrode reflects the tissue state, and the gas sensing electrode identifies volatile substances produced by spoilage. Comprehensive data analysis reduces misjudgments and improves the reliability of the detection.

[0010] The attachment module connects to the electrode module, and there are at least two sets, arranged in a parallel or concentric circular array. Single-point detection is prone to errors due to local differences in the fish body, while a multi-electrode array can simultaneously collect signals from different locations, reducing deviations caused by sample inhomogeneity. Parallel arrangement is suitable for detecting flat fish, while concentric circular arrangement is more suitable for cylindrical fish bodies, ensuring full contact between the electrode and the fish surface.

[0011] The electrode module is equipped with a pressure sensor to monitor the contact pressure between the electrode and the fish surface in real time. The introduction of the pressure sensor enables quantitative control of the detection process, ensuring that each test is performed within the optimal pressure range. Sensor data can be directly fed back to the control system, which automatically adjusts or prompts the operator to make corrections when the pressure is abnormal, significantly reducing human error and making it suitable for automated testing lines. Simultaneously, precise pressure control also reduces damage to valuable samples, making it of significant application value in scientific research and the high-end aquatic product market.

[0012] Preferably, the pressure sensor is connected to a pressure feedback module, which is connected to a tactile vibration motor. When the contact pressure exceeds a preset threshold, the tactile vibration motor sends out a warning signal.

[0013] The electrode module employs a composite probe structure, comprising a micro-puncture section and a contact sensing section. The micro-puncture section has a length of 0.5-5 mm and is used to penetrate the keratin layer of the fish's epidermis. The contact sensing section has an area of ​​5-25 mm². 2 This device is used to collect bioelectrical signals. The micro-puncture section solves the signal attenuation problem caused by barriers in traditional surface electrodes; the contact sensing section stably collects electrical signals from subcutaneous tissue. This division of labor design overcomes the limitations of surface detection, enabling the acquisition of deeper bioelectrical information. The sharp structure of the micro-puncture section uses a special alloy material to ensure penetration while avoiding excessive damage to the sample. The large surface area of ​​the contact sensing section ensures the stability of signal acquisition. This design is particularly suitable for detecting fish with thick skin or scaled fish, solving the problem of poor signal quality of traditional electrodes in these scenarios. By optimizing the probe structure, a balance is achieved between detection depth and signal quality, providing a more reliable data source for fish freshness assessment.

[0014] The beneficial effects of this invention are as follows: The use of a buffer structure with damping blocks and protrusions allows the electrodes to automatically adapt to changes in surface pressure on the fish; the modular threaded interface allows for quick replacement of electrodes with different functions such as pH and impedance; the probe employs a composite structure of a micro-puncture section and a contact sensing section, ensuring signal acquisition while minimizing damage; real-time monitoring of the contact state via a pressure sensor ensures consistent detection conditions; and the parallel or concentric array arrangement of multiple electrodes, combined with a magnetic slider adjustment mechanism, allows for spacing adjustment. This electrode attachment device features buffer protection, multi-parameter detection, and pressure monitoring functions, adapting to different fish detection needs and significantly improving the accuracy and convenience of fish freshness detection. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is an exploded view of the electrode attachment device of the portable fish freshness detector of this utility model.

[0017] Figure 2 This is a schematic diagram of the electrode attachment device for the portable fish freshness detector of this utility model.

[0018] Figure 3 This is a cross-sectional view of the electrode attachment device of the portable fish freshness detector of this utility model.

[0019] Figure 4 This is a schematic diagram showing the location of the attachment module in Example 1.

[0020] Explanation of reference numerals in the attached drawings: 1-attachment module; 11-fixing component; 12-protrusion; 13-cover; 2-sleeve; 21-damping block; 3-electrode module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] See Figures 1-3 A portable fish freshness detector includes an electrode attachment device comprising an attachment module 1 and an electrode module 3. The attachment module 1 is cylindrical with protrusions 12. A sleeve 2 surrounds the attachment module 1, and a damping block 21 inside the sleeve 2 engages with the protrusions 12, allowing relative displacement between the attachment module 1 and the sleeve 2. Traditional electrode attachment devices are prone to signal fluctuations or sample damage due to uneven pressure when in contact with fish. Therefore, this invention, through the cooperation of the damping block 21 and the protrusions 12, achieves flexible contact during electrode attachment, adaptively adjusting the contact force to ensure a tight fit between the electrode and the fish while reducing mechanical impact. This structure is suitable for fish samples of varying hardness, enhancing the versatility and reliability of the device and providing a stable electrical signal foundation for subsequent freshness detection.

[0025] The attachment module 1 is connected to the electrode module 3 via a fastener 11, which is a threaded connection. This threaded connection improves the modularity of the device and simplifies the electrode installation and replacement process. During testing, the electrodes may experience performance degradation due to prolonged use or contamination; the detachable design allows users to quickly replace the electrodes, reducing maintenance costs. Furthermore, dedicated electrode modules can be used to meet different testing needs (such as pH detection, impedance measurement, etc.), improving testing efficiency.

[0026] The attachment module 1 is provided with a cover 13, which cooperates with the sleeve 2.

[0027] The cover 13 includes a magnetic slider on its top, which attracts the metal guide rail above, causing the attachment module 1 to move. Magnetic attraction allows for adjustment of the spacing between the electrode modules 3, providing convenient operation and ensuring the electrodes are in the optimal detection position, suitable for detecting fish of different sizes.

[0028] The electrode module 3 includes a pH-sensitive electrode and / or an impedance measurement electrode and / or a gas sensing electrode. These electrodes can be used individually or in combination to detect different freshness indicators of fish. By combining multiple parameters for detection, the freshness of fish can be assessed more accurately. For example, the pH-sensitive electrode detects changes in the acidity of the fish flesh, the impedance measurement electrode reflects the tissue state, and the gas sensing electrode identifies volatile substances produced by spoilage. Comprehensive data analysis reduces misjudgments and improves the reliability of the detection.

[0029] like Figure 4 As shown, the attachment module 1 connects to the electrode module 3 in at least two groups, arranged in a parallel or concentric circular array. Single-point detection is prone to errors due to local differences in the fish body, while a multi-electrode array can simultaneously acquire signals from different locations, reducing deviations caused by sample inhomogeneity. Parallel arrangement is suitable for detecting flat fish, while concentric circular arrangement is more suitable for cylindrical fish bodies, ensuring full contact between the electrodes and the fish surface.

[0030] The electrode module 3 is equipped with a pressure sensor to monitor the contact pressure between the electrode and the fish surface in real time. The introduction of the pressure sensor enables quantitative control of the detection process, ensuring that each test is performed within the optimal pressure range. Sensor data can be directly fed back to the control system, which automatically adjusts or prompts the operator to make corrections when the pressure is abnormal, significantly reducing human error and making it suitable for automated testing lines. Simultaneously, precise pressure control also reduces damage to valuable samples, making it of significant application value in scientific research and the high-end aquatic product market.

[0031] Preferably, the pressure sensor is connected to a pressure feedback module, which is connected to a tactile vibration motor. When the contact pressure exceeds a preset threshold, the tactile vibration motor sends out a warning signal.

[0032] The electrode module 3 employs a composite probe structure, comprising a micro-puncture section and a contact sensing section. The micro-puncture section has a length of 0.5-5 mm and is used to penetrate the keratin layer of the fish's epidermis. The contact sensing section has an area of ​​5-25 mm². 2This device is used to collect bioelectrical signals. The micro-puncture section solves the signal attenuation problem caused by barriers in traditional surface electrodes; the contact sensing section stably collects electrical signals from subcutaneous tissue. This division of labor design overcomes the limitations of surface detection, enabling the acquisition of deeper bioelectrical information. The sharp structure of the micro-puncture section uses a special alloy material to ensure penetration while avoiding excessive damage to the sample. The large surface area of ​​the contact sensing section ensures the stability of signal acquisition. This design is particularly suitable for detecting fish with thick skin or scaled fish, solving the problem of poor signal quality of traditional electrodes in these scenarios. By optimizing the probe structure, a balance is achieved between detection depth and signal quality, providing a more reliable data source for fish freshness assessment.

[0033] The electrode attachment device of this invention has functions such as buffer protection, multi-parameter detection, and pressure monitoring, which can adapt to the detection needs of different fish and significantly improve the accuracy and convenience of fish freshness detection.

[0034] It should be noted that the terminology used in this application is for the purpose of describing specific embodiments only and is not intended to limit the scope of this application. As shown in this specification, unless the context clearly indicates otherwise, words such as "a," "an," "an," and / or "the" do not specifically refer to the singular and may include the plural. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element.

[0035] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0037] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An electrode attachment device for a portable fish freshness detector, characterized in that, It includes an attachment module (1) and an electrode module (3). The attachment module (1) is a cylindrical body with a protrusion (12). The attachment module (1) is covered by a sleeve (2). The sleeve (2) has a damping block (21) that cooperates with the protrusion (12) so that the attachment module (1) and the sleeve (2) can generate relative displacement.

2. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The attachment module (1) is connected to the electrode module (3) through a fastener (11), and the connection between the fastener (11) and the electrode module (3) is a threaded connection.

3. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The attachment module (1) is provided with a cover (13), which is in conjunction with the sleeve (2).

4. The electrode attachment device for the portable fish freshness detector according to claim 3, characterized in that, The cover (13) includes a magnetic slider disposed on the top of the cover, which attracts the metal guide rail above to move the attachment module (1).

5. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The electrode module (3) includes a pH-sensitive electrode and / or an impedance measurement electrode and / or a gas sensing electrode.

6. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The attachment module (1) is connected to the electrode module (3) and there are at least two groups of them, arranged in a parallel or concentric circle array.

7. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The electrode module (3) is equipped with a pressure sensor for real-time monitoring of the contact pressure between the electrode and the surface of the fish.

8. The electrode attachment device for the portable fish freshness detector according to claim 7, characterized in that, The pressure sensor is connected to a pressure feedback module, which in turn is connected to a tactile vibration motor. When the detected contact pressure exceeds a preset threshold, the tactile vibration motor sends out a warning signal.

9. The electrode attachment device for the portable fish freshness detector according to claim 1, characterized in that, The electrode module (3) adopts a composite probe structure, including a micro-puncture part and a contact sensing part.

10. The electrode attachment device for the portable fish freshness detector according to claim 9, characterized in that, The micro-puncture section has a length of 0.5-5 mm and is used to penetrate the stratum corneum of the fish's epidermis. The area of ​​the contact sensing section is 5-25 mm². 2 It is used to collect bioelectrical signals.

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