Product testing apparatus

Abstract

The present disclosure relates to a product testing apparatus comprising: a frame; a plurality of product support blocks, each product support block being mounted directly or indirectly to the frame and configured to hold a product under test; a nozzle in communication with a liquid reservoir containing a test liquid and supported by the frame above the plurality of product support blocks, the nozzle being movable relative to the frame between a plurality of droplet positions to drop test liquid onto a product under test located therebelow and held by a respective product support block; and an electric cylinder for moving the nozzle.

Description

Technical Field

[0001] This disclosure relates to a product testing device. Background Technology

[0002] In fields such as audio equipment, medical devices, electronics, and sports equipment, sweat droplet tests are often required to simulate the impact of human sweat on the performance of materials or products in order to evaluate their performance.

[0003] Traditional artificial sweat drop testing methods typically rely on operators manually adding sweat or similar simulated liquids and repeating the same steps on multiple test samples.

[0004] This method has significant drawbacks. For example, manual testing is inefficient, cannot achieve simultaneous testing at multiple stations, and requires processing each sample sequentially, resulting in long testing cycles. Test consistency is poor; it is difficult to precisely control the dripping position, liquid volume, and dripping frequency, affecting the repeatability of results. Human error is significant; the operator's skill level and fatigue can interfere with testing accuracy.

[0005] Therefore, there is an urgent need to develop an automated sweat drop testing system that is highly integrated, precisely controlled, and supports simultaneous testing at multiple workstations, in order to improve testing efficiency and consistency and meet the pressing need for efficient and reliable testing methods in modern product development and quality control. Summary of the Invention

[0006] In response to the problems and needs mentioned above, this disclosure proposes a product testing device that solves the aforementioned problems and brings other technical benefits by adopting the following technical features.

[0007] This disclosure provides a product testing device, comprising: a frame; a plurality of product support blocks, each product support block being directly or indirectly mounted to the frame and configured to hold a product to be tested; a nozzle communicating with a liquid container containing test liquid and supported above the plurality of product support blocks by the frame, the nozzle being movable relative to the frame between a plurality of dripping positions to drip test liquid onto the product to be tested located below it and held by a corresponding product support block; and an electric cylinder for moving the nozzle.

[0008] In an example embodiment, the electric cylinder is movably mounted to the frame of the product testing equipment, and the nozzle is directly or indirectly mounted to the electric cylinder to move with the electric cylinder.

[0009] In an example embodiment, the product testing equipment further includes a peristaltic pump connected to the nozzle and configured to pump test liquid from the liquid container to the nozzle for discharge via the nozzle.

[0010] In an example embodiment, the product testing equipment includes a retainer fixed to the frame, and the product support block is removably mounted to the retainer.

[0011] In an example embodiment, the retainer includes two sheet-like portions separated by a spacer, and the product support block includes two sliding grooves recessed relative to two sides of the product support block, the two sliding grooves slidably engaging the two sheet-like portions.

[0012] In an example embodiment, the retainer includes a first segment and a second segment at an obtuse angle to each other, the first segment being configured to be fixed to the frame, and the second segment including the two sheet-like portions.

[0013] In an example embodiment, the product testing equipment further includes a liquid collection tray located below the plurality of product support blocks, and the liquid collection tray has a bottom surface that is inclined relative to the plurality of product support blocks.

[0014] In an example embodiment, the nozzle is directly or indirectly mounted to the electric cylinder via a connecting assembly, the connecting assembly including a first connector for directly or indirectly fixing to the electric cylinder and a second connector for supporting the nozzle; the first connector has a first elongated groove, the second connector has a second elongated groove intersecting the first elongated groove, and a fixing bolt passes through the first elongated groove and the second elongated groove to connect the first connector and the second connector; wherein the position of the fixing bolt in the first elongated groove and the second elongated groove is adjustable.

[0015] In an example embodiment, the product testing equipment further includes a PLC control module configured to perform the following operations: control the electric cylinder to move the nozzle to a predetermined dripping position; and control the peristaltic pump to discharge test liquid through the nozzle.

[0016] In an example embodiment, the PLC control module is configured to control the amount of test liquid dripping by adjusting the rotational speed and frequency of the peristaltic pump.

[0017] In an example embodiment, the product testing equipment further includes a sensor configured to sense the position of the nozzle and provide a sensor signal indicating the nozzle position; wherein the PLC control module is configured to control the electric cylinder based on the sensor signal to adjust the position of the nozzle.

[0018] In the example embodiment, the product under test is a headset.

[0019] In an example embodiment, the test liquid is sweat or a liquid containing sweat.

[0020] In an example embodiment, the product testing equipment further includes a data processing module configured to store and process at least one of the following data: electric cylinder position data, peristaltic pump operating parameter data, and liquid consumption data.

[0021] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings so that the features and advantages of the present disclosure can be readily understood. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments of this disclosure will be briefly described below. The drawings are only used to illustrate some embodiments of this disclosure and are not intended to limit all embodiments of this disclosure to this extent.

[0023] Figure 1 A schematic diagram illustrating an exemplary embodiment of the product testing equipment of this disclosure is shown;

[0024] Figure 2 It shows Figure 1 Assembly diagram of the product support block and retainer of the product testing equipment;

[0025] Figure 3 Showing it from another perspective Figure 1 Assembly diagram of the product support block and retainer of the product testing equipment;

[0026] Figure 4 It shows Figure 1 A schematic diagram of the product support block for the product testing equipment;

[0027] Figure 5 It shows Figure 1 A schematic diagram of the connection components of the product testing equipment;

[0028] Figure 6 and Figure 7 A schematic diagram of the liquid collection tray of the product testing equipment is shown from different perspectives;

[0029] Figure 8 Exemplary sets of product support blocks and retainers for a product testing device are shown.

[0030] List of reference numerals

[0031] 10 Product Testing Equipment

[0032] 20 Framework

[0033] 30 Product Support Blocks

[0034] 31 Support groove

[0035] 32 Sliding groove

[0036] 40 nozzles

[0037] 50 retainers

[0038] 51 First Section

[0039] 511 mounting slot

[0040] 52 Second Section

[0041] 521 Flaky part

[0042] 60 electric cylinder

[0043] 70 Peristaltic Pump

[0044] 80 Liquid Collection Tray

[0045] 81 Bottom

[0046] 90 Connection Components

[0047] 91 First Connector

[0048] 911 First elongated groove

[0049] 912 Part 1

[0050] 913 Part Two

[0051] 92 Second connector

[0052] 921 Second elongated groove Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0054] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0055] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0056] This disclosure discloses a product testing device. This device can be used to simulate the effects of human sweat on the surface or material properties of a product to evaluate the durability, corrosion resistance, or functional reliability of the product under various sweat conditions. It is particularly suitable for product development and quality control testing in fields such as audio equipment, wearable electronics, sports equipment, and medical supplies. In an exemplary embodiment, this product testing device is particularly suitable for sweat testing of headsets or headphones.

[0057] The product testing equipment 10 mainly includes a frame 20, a product support structure, a nozzle 40, an electric cylinder 60, a peristaltic pump 70, and a PLC control module. The frame 20 serves as the load-bearing foundation for the entire product testing equipment 10, used to install and support other functional components. The specific form of the frame 20 is not limited; it can be a shell, rod, plate, and / or a combination thereof.

[0058] The product support structure of the product testing equipment 10 specifically consists of two or more product support blocks 30. Figure 2 and Figure 4 An exemplary structure of the product support block 30 is shown, but the structure of the product support block 30 disclosed herein is not limited thereto. The product support block 30 is mounted directly or indirectly to the frame 20 for holding and supporting the product under test.

[0059] The nozzle 40 of the product testing device 10 is connected to a liquid container holding the test liquid and is supported above a plurality of product support blocks 30 by a frame 20. This disclosure does not limit the structure of the nozzle 40. However, this disclosure proposes that the nozzle 40 be movable relative to the frame 20 between a plurality of dripping positions, where each dripping position corresponds to a product support block 30. By moving the nozzle 40 between different dripping positions, the test liquid can be dripped onto the product under test located below it and held by the corresponding product support block 30.

[0060] The electric cylinder 60 of the product testing device 10 serves as a power actuator to drive the nozzle 40 to move between various dripping positions. In an exemplary embodiment, the electric cylinder 60 is movably mounted to the frame 20 of the product testing device 10. For example, the product testing device 10 may have a screw fixed to the frame 20, and the electric cylinder 60 is connected to and moves relative to the screw. The movement path of the electric cylinder 60 is arranged along the arrangement direction of the product support blocks 30 and covers each of the plurality of product support blocks 30. The nozzle 40 is directly or indirectly mounted to the electric cylinder 60 to move with the electric cylinder 60. By employing a movable nozzle design driven by an electric cylinder, manual operation of dripping and product switching is eliminated, shortening the testing time and enabling automatic, accurate, and consistent execution of sweat dripping tests.

[0061] Product testing equipment 10 also includes a peristaltic pump 70, which is connected between a liquid container and a nozzle 40. The peristaltic pump 70 is configured to pump the test liquid from the liquid container to the nozzle 40 and then discharge it quantitatively through the nozzle 40. The peristaltic pump 70 can precisely control the drip rate, improving test repeatability. The nozzle 40 is connected to the peristaltic pump 70 via a pipe (not shown), and the input end of the peristaltic pump 70 is connected to the liquid container holding the test liquid, such as a sweat reservoir, via a flexible hose. Before testing, the pipe type (e.g., diameter), the required drip time, and / or nozzle 40 parameters can be provided to the peristaltic pump 70 as input parameters. The peristaltic pump 70 can be controlled to drip liquid using a PLC control module detailed below. The peristaltic pump 70 allows for control of the drip rate by adjusting the pump's speed and frequency, enabling on-demand dripping at a specified frequency and amount, fully adapting to diverse testing scenarios.

[0062] In an exemplary embodiment, the product testing equipment 10 includes a retainer 50 fixed to the frame 20. A product support block 30 is fixed to the frame 20 via the retainer 50. The product support block 30 is removably mounted to the retainer 50 of the frame 20. Therefore, product support blocks 30 with different structures and / or sizes can be easily replaced according to different testing requirements and products being tested.

[0063] Figure 2 and Figure 3The assembly state diagrams of the product support block 30 and the retainer 50 of the product testing equipment 10 are shown from different perspectives. Figure 4 A schematic diagram of the product support block 30 is shown. The retainer 50 can be a single sheet, for example, made of a metal sheet. In an exemplary embodiment, the retainer 50 includes a first segment 51 and a second segment 52 that are obtuse angles to each other. The first segment 51 is configured to be fixed to the frame 20, and the second segment 52 is the segment containing the two sheet-like portions 521. Due to the obtuse angle design of the first and second segments, when the first segment 51 is mounted vertically to the frame 20, the second segment 52 forms an acute angle relative to the horizontal direction. In other words, the end of the second segment 52 is allowed to tilt downwards. This tilt angle design effectively drains liquid falling onto the upper surface of the product support block 30 and allows the product under test (e.g., a wired headset or earphone) to be held at an angle suitable for testing.

[0064] like Figure 2 As shown, the first section 51 of the retainer 50 is provided with a mounting groove 511, through which the retainer 50 can be fixed to the frame 20. In other embodiments, the first section 51 may be provided with mounting holes, engaging portions, or other mounting features.

[0065] See also Figures 2 to 4 The second section 52 of the retainer 50 may include two sheet-like portions 521 separated by a space, such as an elongated, uniform gap. The two sheet-like portions 521 may have identical structures and extend parallel to each other. The roots of the two sheet-like portions 521 are connected together. Corresponding to the two sheet-like portions 521, the product support block 30 includes two sliding grooves 32 recessed relative to two sides of the product support block 30, the two sliding grooves 32 slidably engaging the two sheet-like portions 521. Thus, the sheet-like portions 521 and the sliding grooves 32 form a sliding connection, allowing the product support block 30 to be slidably installed and removed. This design allows for quick installation and removal of the product support block 30 in a simple and cost-effective manner, adapting to products of different sizes and specifications, without requiring modification or replacement of the retainer 50. Simultaneously, the cooperative structure of the double sheet-like portions and double sliding grooves ensures uniform force distribution during the sliding process of the product support block 30, improving stability.

[0066] See Figure 2 and Figure 4A support groove 31 may be provided on the top of the product support block 30, extending along the direction of the sheet-like portion 521 and the sliding groove 32. The support groove 31 is used to support the product under test. The structure of the support groove 31 is particularly suitable for sweat testing of wired headsets or headphones. For example, part of the wire of the wired headset or headphone can be accommodated in the support groove 31, and the headset or headphone body can be suspended above the sheet-like portion. During the test, sweat can drip onto the test location on the headset or headphone body.

[0067] Figure 8 An exemplary product support structure for a product testing apparatus is shown, comprising six sets of product support blocks and retainers. In alternative embodiments, other numbers of product support blocks and retainers may be included.

[0068] like Figure 1 As shown, the product testing equipment 10 may further include a liquid collection tray 80, which is located below the plurality of product support blocks 30. This disclosure does not limit the specific structure of the liquid collection tray 80. Figure 6 and Figure 7 A schematic diagram of the liquid collection tray of the product testing equipment is shown from different perspectives. The liquid collection tray 80 may have a bottom wall and side walls extending from the bottom wall. Preferably, the liquid collection tray 80 has a bottom surface 81 that is inclined relative to the plurality of product support blocks 30. In the embodiment shown in the figures, the bottom surface 81 of the liquid collection tray 80 is inclined relative to the horizontal direction to facilitate the controlled drainage of liquid from the liquid collection tray 80 after it is full.

[0069] In an exemplary embodiment, the nozzle 40 is directly or indirectly mounted to the electric cylinder 60 via a connecting assembly 90. The connecting assembly 90 includes a first connector 91 for directly or indirectly securing to the electric cylinder 60 and a second connector 92 for supporting the nozzle 40, the first connector 91 and the second connector 92 being connected to each other.

[0070] According to a preferred embodiment, the first connector 91 has a first elongated groove 911, and the second connector 92 has a second elongated groove 921 intersecting the first elongated groove 911. The first and second elongated grooves are preferably at 90 degrees to each other. A fixing bolt (not shown) can be used to pass through the first elongated groove 911 and the second elongated groove 921 to connect the first connector 91 and the second connector 92. The position of the fixing bolt in the first elongated groove 911 and the second elongated groove 921 is adjustable.

[0071] The design of this connecting component 90 allows for adjustment of the nozzle 40's position in both horizontal and vertical orthogonal directions simply by changing the position of the fixing bolts in the two elongated slots. This corrects installation errors of the nozzle 40 or adapts to different nozzle 40 position requirements without replacing the connecting component 90. After adjustment, tightening the fixing bolts locks the nozzle 40 in place. The connecting component 90 features a simple structure, low component machining difficulty, ease of use, and high flexibility.

[0072] like Figure 5 As shown, the first connector 91 may include two parts: a first part 912 and a second part 913. The first part 912 of the first connector 91 is provided with mounting holes for fixing to the electric cylinder 60 by bolts or screws. The second part 913 of the first connector 91 has a hollow portion in which the second connector 92 is movably disposed. The second part 913 of the first connector 91 has two opposing walls, and the second connector 92 is located within the space defined by the two walls. Each wall may be provided with one or more first elongated slots 911. In the exemplary embodiment shown in the figure, each wall is provided with two of the aforementioned first elongated slots 911, and each elongated slot may be provided with a corresponding fixing bolt. Thus, using two fixing bolts, each fixing bolt passes through the two first elongated slots 911 of the two walls of the first connector 91 and a single second elongated slot 921 of the second connector 92. This design further improves the connection rigidity and structural stability.

[0073] Alternatively, each wall may have a first elongated groove 911, and a single fixing bolt passes through the first elongated groove 911 of each wall and the second elongated groove 921 of the second connector 92.

[0074] Alternatively, the second connector 92 may have two opposing walls, with the first connector 91 located between the two walls of the second connector 92. Alternatively, there may be no clamping or nesting relationship between the first connector 91 and the second connector 92.

[0075] In an exemplary embodiment, the product testing equipment 10 further includes a PLC control module configured to communicatively connect to the electric cylinder 60 to control the electric cylinder 60, thereby moving the nozzle 40 to a predetermined dripping position via the power of the electric cylinder 60 or the movement of the electric cylinder 60 itself. The PLC control module also integrates a high-precision position feedback function, acquiring displacement data of the electric cylinder 60 in real time and dynamically correcting the position of the nozzle 40 to ensure the accuracy of the dripping position. Specifically, the product testing equipment 10 may include a sensor configured to sense the position of the nozzle 40 and provide a sensor signal representing the position of the nozzle 40, wherein the PLC control module is configured to control the electric cylinder 60 based on the sensor signal to adjust the position of the nozzle 40.

[0076] The PLC control module is configured to be communicatively connected to the peristaltic pump 70 to control the peristaltic pump 70 to pump the test liquid and discharge the test liquid through the nozzle 40. According to an exemplary embodiment, the PLC control module can be configured to control the drip rate of the test liquid by adjusting the rotational speed and frequency of the peristaltic pump 70.

[0077] In an exemplary embodiment, the control method of the PLC-based intelligent dripping control method may include the following control steps.

[0078] First, during the initialization phase, the PLC control module reads the current test task parameters, such as product model, number of drips, drip volume, and interval time. Optionally, the PLC control module can self-check the status of the electric cylinder 60, sensors, and peristaltic pump 70 to confirm that the system is functioning normally. Optionally, nozzle and pipe parameters can be provided to the peristaltic pump 70 to ensure that its rotational speed parameters are accurately matched according to the pipe diameter and fluid characteristics.

[0079] Secondly, the PLC performs position control. Based on the test position coordinates, the PLC controls the movement of the electric cylinder 60, thereby moving the nozzle 40 above the first product to be tested. The sensor provides real-time feedback on the nozzle position, and the PLC adjusts the movement of the electric cylinder 60 using a PID algorithm to ensure positioning accuracy.

[0080] The dripping stage then begins. The PLC starts the peristaltic pump 70 and adjusts the pump speed and running time according to the preset drip volume. During the dripping process, the PLC monitors the pump's operating status. If any abnormality is detected, such as pipe blockage or insufficient liquid, an alarm is immediately triggered and the data is logged.

[0081] After completing the dripping at the current test position, the PLC controls the electric cylinder 60 to move to the next test position, repeating the above process until all test positions are completed.

[0082] In an exemplary embodiment, the product testing equipment 10 further includes a data processing module configured to store at least one of the following data: electric cylinder position data, peristaltic pump operating parameter data, and liquid consumption data. The data processing module can be set to synchronize with a host computer system in real time, automatically generate a complete test report, and mark and alert on abnormal data points. For example, after the test process is completed, data can be summarized and analyzed based on liquid consumption and the corrosion status of the product surface. If electrical performance testing is required, the operator can remove the product and place it in a dedicated testing device to complete performance testing and data analysis, or directly connect external testing equipment during the test to monitor the product's operating status and key parameters in real time.

[0083] In an exemplary embodiment, the use of the testing equipment disclosed herein may include a data recording phase. After the test is completed, the PLC control module automatically uploads information such as the electric cylinder position data, pump operating parameters, dripping time, and liquid consumption. The data processing module automatically organizes the data and generates a structured test report, facilitating user traceability of the test process and evaluation results.

[0084] By introducing advanced data processing modules, the system has achieved significant improvements in data processing efficiency, data accuracy, and data consistency.

[0085] The exemplary implementation of the solution proposed in this disclosure has been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A product testing device (10), comprising: Framework (20); Multiple product support blocks (30), each product support block (30) is directly or indirectly mounted to the frame (20) and configured to hold the product under test; The nozzle (40) is in communication with a liquid container containing the test liquid and is supported above the plurality of product support blocks (30) by the frame (20). The nozzle (40) is movable relative to the frame (20) between a plurality of drip positions to drip the test liquid onto the product to be tested located below it and held by the respective product support block (30). An electric cylinder (60) is used to move the nozzle (40).

2. The product testing equipment (10) as described in claim 1, wherein, The electric cylinder (60) is movably mounted to the frame (20) of the product testing equipment (10), and the nozzle (40) is directly or indirectly mounted to the electric cylinder (60) to move with the electric cylinder (60).

3. The product testing equipment (10) as described in claim 1, wherein, The product testing equipment (10) also includes a peristaltic pump (70) connected to the nozzle (40) and configured to pump test liquid from the liquid container to the nozzle (40) for discharge via the nozzle (40).

4. The product testing equipment (10) as described in claim 1, wherein, The product testing equipment (10) includes a retainer (50) fixed to the frame (20), and the product support block (30) is removably mounted to the retainer (50).

5. The product testing equipment (10) as described in claim 4, wherein, The retainer (50) includes two sheet-like portions (521) separated by a spacer, and the product support block (30) includes two sliding grooves (32) recessed relative to two sides of the product support block (30), the two sliding grooves (32) slidably engaging the two sheet-like portions (521).

6. The product testing equipment (10) as described in claim 5, wherein, The retainer (50) includes a first section (51) and a second section (52) at an obtuse angle to each other, the first section (51) being configured to be fixed to the frame (20), and the second section (52) including the two sheet-like portions (521).

7. The product testing equipment (10) as described in claim 1, wherein, The product testing equipment (10) also includes a liquid collection tray (80) located below the plurality of product support blocks (30) and having a bottom surface (81) inclined relative to the plurality of product support blocks (30).

8. The product testing equipment (10) as described in claim 2, wherein, The nozzle (40) is directly or indirectly mounted to the electric cylinder (60) via a connecting assembly (90), the connecting assembly (90) including a first connector (91) for directly or indirectly fixing to the electric cylinder (60) and a second connector (92) for supporting the nozzle (40). The first connector (91) has a first elongated groove (911), and the second connector (92) has a second elongated groove (921) that intersects with the first elongated groove (911). The fixing bolt passes through the first elongated groove (911) and the second elongated groove (921) to connect the first connector (91) and the second connector (92). The position of the fixing bolt in the first elongated groove (911) and the second elongated groove (921) is adjustable.

9. The product testing equipment (10) as described in claim 3, wherein, The product testing equipment (10) also includes a PLC control module, which is configured to perform the following operations: Control the electric cylinder (60) to move the nozzle (40) to a predetermined dripping position; and Control the peristaltic pump (70) to discharge the test liquid via the nozzle (40).

10. The product testing equipment (10) as described in claim 9, wherein, The PLC control module is configured to control the amount of test liquid dripping by adjusting the rotation speed and frequency of the peristaltic pump (70).

11. The product testing equipment (10) as described in claim 9, wherein, The product testing equipment (10) also includes a sensor configured to sense the position of the nozzle (40) and provide a sensor signal indicating the position of the nozzle; The PLC control module is configured to control the electric cylinder (60) based on the sensor signal to adjust the position of the nozzle (40).

12. The product testing equipment (10) as described in claim 1, wherein, The product to be tested is a headset.

13. The product testing equipment (10) as described in claim 1, wherein, The test liquid is sweat or a liquid containing sweat.

14. The product testing equipment (10) as described in claim 1, wherein, The product testing equipment (10) further includes a data processing module configured to store and process at least one of the following data: electric cylinder position data, peristaltic pump operating parameter data, and liquid consumption data.

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