Circular motion acceleration measuring device

Abstract

The utility model provides a circular motion acceleration measuring device. The device comprises a frame, a containing box, a measuring ball, a display module, a data processing module, a control module and a rotation driving module, the frame is connected with a power output shaft of the rotation driving module, and the frame is of a U-shaped groove structure; the measuring ball is located in the containing box, the containing box is located in the groove of the frame, and a plurality of pressure sensors are arranged in the containing box; wherein a preset number of electric brushes are configured in the pressure sensor; the plurality of pressure sensors are connected with the data processing module, and the data processing module is connected with the display module; the control module is connected with the rotation driving module. Based on the device, compared with an existing acceleration demonstration instrument, the influence of normal acceleration, tangential acceleration and angular velocity on the instrument can be comprehensively measured, the measurement result is displayed in real time through the data processing module and the display module, the intuition and accuracy of an experiment are improved, and therefore teaching and research are more effectively assisted.

Description

Technical Field

[0001] This manual pertains to the field of circular motion demonstration equipment, and particularly relates to a circular motion acceleration measuring device. Background Technology

[0002] Current accelerometers can demonstrate the existence of normal acceleration, but they cannot fully demonstrate the effects of normal acceleration, tangential acceleration, and angular velocity on it.

[0003] There is currently no effective solution to the above problems. Utility Model Content

[0004] This manual provides a circular motion acceleration measurement device. Compared with existing acceleration demonstration instruments, it can comprehensively measure the effects of normal acceleration, tangential acceleration, and angular velocity on the device. The measurement results are presented in real time through the data processing module and the display module, which improves the intuitiveness and accuracy of the experiment, thereby more effectively assisting teaching and research.

[0005] This specification provides a device for measuring the acceleration of circular motion. The device includes a frame, a housing, a measuring ball, a display module, a data processing module, a control module, and a rotation drive module.

[0006] The center of the frame is connected to the power output shaft of the rotary drive module, and the frame has a U-shaped groove structure.

[0007] The measuring ball is located inside the receiving box, which is located within a groove in the frame, and multiple pressure sensors are provided inside the receiving box; wherein, a preset number of brushes are configured inside each pressure sensor;

[0008] The plurality of pressure sensors are connected to the data processing module, and the data processing module is connected to the display module;

[0009] The control module is connected to the rotation drive module; wherein, the control module includes a power control submodule and a rotation parameter control submodule.

[0010] In one embodiment, the container is in an unclosed state, and the orientation of the unclosed side of the container within the frame is related to the rotation direction of the rotation drive module. The plurality of pressure sensors are respectively located on a plurality of adjacent sides of the container other than the unclosed side.

[0011] In one embodiment, the device further includes an adjustment module, wherein the receiving box is located within a groove in the frame and is connected to the frame via the adjustment module, and the adjustment module is used to adjust the rotation radius of the receiving box within the frame.

[0012] In one embodiment, an adjustment module is respectively disposed at each end of the groove of the frame.

[0013] In one embodiment, the adjustment module includes a screw that passes through the unclosed side of the housing to secure the housing within a groove in the frame.

[0014] In one embodiment, the device further includes a partition and a power switch, wherein the power output shaft of the rotary drive module passes through the partition and is connected to the center of the frame, and the power switch is connected to the control module.

[0015] In one embodiment, the display module includes a normal acceleration display submodule, an angular velocity display submodule, a negative tangential acceleration display submodule, and a positive tangential acceleration display submodule.

[0016] In one embodiment, the rotation parameter control submodule includes a rotation direction control submodule and a rotation speed control submodule, and the rotation parameter control submodule is connected to the data processing module.

[0017] In one embodiment, the rotation parameter control submodule further includes a rotation radius control submodule, which is connected to the adjustment module.

[0018] In one embodiment, the device further includes a wireless communication module connected to the data processing module, which is used to send the data processed by the data processing module to a preset receiving device.

[0019] This specification provides a circular motion acceleration measuring device, comprising a frame, a housing, a measuring ball, a display module, a data processing module, a control module, and a rotation drive module. The center of the frame is connected to the power output shaft of the rotation drive module, and the frame has a U-shaped groove structure. The measuring ball is located within the housing, which is situated within the groove of the frame, and multiple pressure sensors are disposed within the housing. Each pressure sensor contains a predetermined number of brushes. The multiple pressure sensors are connected to the data processing module, which is in turn connected to the display module. The control module is connected to the rotation drive module, which includes a power control submodule and a rotation parameter control submodule. This U-shaped groove frame and housing design achieve stable motion of the measuring ball during rotation, and the use of multiple pressure sensors and brushes to replace traditional wires avoids wire entanglement, improving measurement accuracy and stability. Compared to existing accelerometers, this device can comprehensively measure the effects of normal acceleration, tangential acceleration, and angular velocity on the device, and present the measurement results in real time through the data processing and display modules, thereby improving the intuitiveness and accuracy of the experiment and more effectively assisting teaching and research. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this specification, the accompanying drawings used in the embodiments will be briefly introduced below. The drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a circular motion acceleration measuring device provided in one embodiment of this specification;

[0022] Figure 2 This is a partial schematic diagram of the structure of a circular motion acceleration measuring device according to one embodiment of this specification;

[0023] Figure 3 This is a schematic diagram of another circular motion acceleration measuring device provided in one embodiment of this specification;

[0024] Figure 4 This is a schematic diagram of a computer display provided in one embodiment of this specification;

[0025] Figure 5 This is a schematic diagram illustrating the relationship between normal acceleration and radius of curvature, provided in one embodiment of this specification.

[0026] Figure 6This is a schematic diagram illustrating the relationship between normal acceleration and rotational speed, provided as an embodiment of this specification.

[0027] Legend:

[0028] 10. Frame; 20. Receiving box; 30. Measuring ball; 40. Display module; 41. Acceleration display submodule; 42. Angular velocity display submodule; 43. Negative tangential acceleration display submodule; 44. Positive tangential acceleration display submodule; 50. Data processing module; 60. Control module; 61. Power control submodule; 62. Rotation parameter control submodule; 63. Rotation direction control submodule; 64. Rotation speed control submodule; 65. Rotation radius control submodule; 70. Rotation drive module; 80. Adjustment module; 81. Long strip-shaped hollow; 90. Screw; 100. Partition; 110. Wireless communication module; 120. Pressure sensor; 130. Brush; 140. Motor; 150. Power output shaft; 160. Power switch. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0030] This specification provides an embodiment of a circular motion acceleration measuring device. For specific implementation, please refer to [reference needed]. Figure 1 As shown, the device includes a frame 10, a housing 20, a measuring ball 30, a display module 40, a data processing module 50, a control module 60, and a rotation drive module 70, wherein...

[0031] The center of the frame 10 is connected to the power output shaft 150 of the rotary drive module 70, and the frame 10 has a U-shaped groove structure.

[0032] The measuring ball 30 is located inside the receiving box 20, which is located in the groove of the frame 10, and a plurality of pressure sensors 120 are provided inside the receiving box 20; wherein, a preset number of brushes 130 are arranged inside the pressure sensor 120.

[0033] The plurality of pressure sensors 120 are connected to the data processing module 50, and the data processing module 50 is connected to the display module 40;

[0034] The control module 60 is connected to the rotation drive module 70; wherein, the control module 60 includes a power control submodule 61 and a rotation parameter control submodule 62.

[0035] The center of the frame 10 is connected to the power output shaft 150 of the rotary drive module 70, ensuring that the frame 10 rotates synchronously with the rotary drive module 70, providing a stable rotational environment for the measuring ball 30, and making the acceleration changes more accurate during the measurement process.

[0036] The aforementioned housing 20 provides a fixed trajectory for the measuring ball 30, while allowing the measuring ball 30 to be displaced after being subjected to force during rotation, facilitating the measurement of pressure changes at different locations.

[0037] The aforementioned measuring ball 30 is placed inside the receiving box 20. The ball can roll freely inside the receiving box 20, but is restricted by the fixed end and will not detach from the receiving box 20. Thus, during rotation, the measuring ball 30 generates normal and tangential forces due to inertia, which act on the internal wall of the receiving box 20. This allows the pressure sensor 120 to detect these force changes and calculate the corresponding acceleration.

[0038] The aforementioned housing 20 is equipped with multiple pressure sensors 120. Thus, when the measuring ball 30 is subjected to normal and tangential forces generated by rotation, the pressure sensors 120 can sense pressure changes in different directions, thereby obtaining physical parameters such as normal acceleration and tangential acceleration.

[0039] The pressure sensor 120 is equipped with a preset number of brushes 130 (e.g., four brushes 130), and the brushes 130 can slide in contact with the potentiometer.

[0040] In this way, as the frame 10 rotates, the brush 130 slides on the potentiometer, achieving tangled signal transmission and avoiding the tangling problem caused by rotation in traditional wires. Furthermore, the pressure sensor 120 converts the measured pressure signal into an electrical signal and transmits it to the data processing module 50 via the brush 130 for real-time data analysis, preventing measurement errors caused by signal interruption. Simultaneously, compared to traditional wire connection methods, the sliding contact method of the brush 130 reduces mechanical wear caused by rotation, improving the durability and measurement stability of the device.

[0041] The aforementioned pressure sensors 120 are connected to the data processing module 50 via signal transmission lines. Thus, the data processing module 50 receives signals from the pressure sensors 120, performs data calculations and conversions, and ultimately obtains parameters such as the normal acceleration, tangential acceleration, and angular velocity of the measuring ball 30.

[0042] The data processing module 50 is connected to the display module 40. The display module 40 is used to display the calculated motion parameters in real time, allowing the experimenter to intuitively obtain the changes in physical quantities during the rotation process.

[0043] The aforementioned control module 60 is connected to the rotary drive module 70 via electrical signals, controlling the start / stop, speed, and direction of rotation of the rotary drive module 70. The power control submodule 61 is responsible for providing the system with the necessary electrical energy to ensure normal operation of the device. The rotation parameter control submodule 62 is used to adjust the speed and direction of rotation of the rotary drive module 70 to adapt to different measurement requirements.

[0044] The frame 10 can be a metal frame, the container 20 can be a metal box, and the measuring ball 30 can be a metal ball.

[0045] Based on the above embodiments, the U-shaped groove frame 10 and the receiving box 20 design achieve stable movement of the measuring ball 30 during rotation. Multiple pressure sensors 120 and brushes 130 replace traditional wires, avoiding wire tangling and improving measurement accuracy and stability. Compared to existing accelerometers, this device can comprehensively measure the effects of normal acceleration, tangential acceleration, and angular velocity, and presents the measurement results in real time through the data processing module 50 and display module 40, enhancing the intuitiveness and accuracy of the experiment, thus more effectively supporting teaching and research.

[0046] In some embodiments, the container 20 is in an unclosed state, and the orientation of the unclosed side of the container 20 within the frame 10 is related to the rotation direction of the rotation drive module 70. The plurality of pressure sensors 120 are respectively located on a plurality of adjacent sides of the container 20 other than the unclosed side.

[0047] In this configuration, the orientation of the unclosed side of the housing 20 within the frame 10 is related to the rotation direction of the rotary drive module 70. This ensures that the measuring ball 30, under pressure during rotation, can move in a specific direction, maximizing the force exerted on that particular side and improving measurement accuracy. By appropriately adjusting the orientation of the unclosed side, the movement path of the measuring ball 30 can be controlled, optimizing the acquisition of measurement data.

[0048] The aforementioned pressure sensors 120 are located on multiple adjacent sides of the housing 20, excluding the unsealed side, ensuring that the measuring ball 30 can contact the sensors and generate measurement signals during movement. Thus, by using the pressure sensors 120 in different directions, the pressure change of the measuring ball 30 under force during rotation is measured, and its normal acceleration, tangential acceleration, and angular velocity data are obtained.

[0049] In some embodiments, see Figure 2 As shown, the device also includes an adjustment module 80. The receiving box 20 is located in the groove of the frame 10 and is connected to the frame 10 through the adjustment module 80. The adjustment module 80 is used to adjust the rotation radius of the receiving box 20 within the frame 10.

[0050] Thus, by adjusting module 80, the receiving box 20 can be securely installed in the groove of frame 10, while allowing for position adjustment. This connection method ensures that the receiving box 20 will not loosen or shift during rotation, improving measurement stability. Simultaneously, adjustment module 80 can change the installation position of the receiving box 20 relative to the rotation axis, thereby adjusting the rotation radius of the measuring ball 30. Changes in the rotation radius affect the acceleration experienced by the measuring ball 30 during rotation, thus adapting to different experimental needs, such as studying the effects of normal acceleration, tangential acceleration, and angular velocity at different radii on the motion of the measuring ball 30. Adjustable rotation radius makes experimental conditions more flexible, facilitates variable control, and improves experimental repeatability and data accuracy.

[0051] In some embodiments, see Figure 2 As shown, an adjustment module 80 is respectively disposed at both ends of the groove of the frame 10.

[0052] In some embodiments, see Figure 2 As shown, the adjustment module 80 includes a screw 90, which is used to pass through the unclosed side of the receiving box 20 and fix the receiving box 20 in the groove of the frame 10.

[0053] In this way, screw 90 passes through the unclosed side of the receiving box 20, allowing the receiving box 20 to be securely installed in the groove of the frame 10, preventing it from sliding or shifting during rotation and improving the overall structural stability. Tightening screw 90 firmly fixes the position of the receiving box 20, ensuring the accuracy and reliability of experimental data. Since the position of screw 90 can be adjusted along the hollow adjustment slot on the frame 10, the experimenter can change the radial position of the receiving box 20 within the frame 10, thereby adjusting the rotation radius of the measuring ball 30. Screw 90 not only fixes the receiving box 20 but also prevents the measuring ball 30 from sliding out. Located on the unclosed side of the receiving box 20, it prevents the measuring ball 30 from being thrown out due to centrifugal force or inertia during rotation, ensuring experimental safety and ensuring that the measuring ball 30 remains within the sensor's monitoring range, improving the continuity and accuracy of data acquisition. Because screw 90 can be adjusted, the experimenter can quickly adjust the position of the receiving box 20 to adapt to different experimental conditions and research needs, making the experiment more flexible.

[0054] In some embodiments, see Figure 3As shown, the device also includes a partition 100 and a power switch 160. The power output shaft 150 of the rotary drive module 70 passes through the partition 100 and is connected to the center of the frame 10. The power switch 160 is connected to the control module 60 and is used to control the power supply of the control module 60.

[0055] In some embodiments, see Figure 3 As shown, the display module 40 includes a normal acceleration display submodule 41, an angular velocity display submodule 42, a negative tangential acceleration display submodule 43, and a positive tangential acceleration display submodule 44.

[0056] The normal acceleration determines the curvature of the trajectory of the measuring ball 30 around the center of rotation, which can intuitively reflect the force situation of the object in circular motion. Angular velocity is a key parameter affecting tangential acceleration, and the data displayed by this module can help analyze the dynamic characteristics of rotational motion. The negative tangential acceleration display submodule 43 is used to display the tangential acceleration of the measuring ball 30 when it decelerates (i.e., acceleration in the negative direction). When the measuring ball 30 is subjected to resistance or deceleration by the rotation drive module 70, its tangential acceleration will show a negative value. This module helps to study the dynamic characteristics of the deceleration phase during motion. The positive tangential acceleration display submodule 44 is used to display the tangential acceleration of the measuring ball 30 when it accelerates (i.e., acceleration in the positive direction). Positive tangential acceleration reflects the acceleration of the measuring ball 30 under the action of force, and the data displayed by this module helps to study the motion law under different external forces.

[0057] In some embodiments, see Figure 3 As shown, the rotation parameter control submodule 62 includes a rotation direction control submodule 63 and a rotation speed control submodule 64, and the rotation parameter control submodule 62 is connected to the data processing module 50.

[0058] The aforementioned rotation direction control submodule 63 is used to adjust the rotation direction of the rotation drive module 70, causing the measuring ball 30 to rotate clockwise or counterclockwise. By changing the rotation direction, the influence of changes in the acceleration direction on the motion state of the measuring ball 30 can be studied. It can be used to simulate angular velocities and accelerations in different directions, enhancing the flexibility and applicability of the experiment. In teaching demonstrations or research, the influence of changes in direction on the trajectory and force conditions can be visually demonstrated.

[0059] The aforementioned rotational speed control submodule 64 is used to adjust the rotational speed of the rotational drive module 70, i.e., to control the magnitude of the angular velocity. By adjusting the rotational speed, different motion conditions can be simulated, such as low-speed, uniform-speed, and high-speed rotation. Combined with the data processing module 50, it can record the normal and tangential acceleration values ​​at different rotational speeds to analyze the dynamic characteristics of rotational motion. It is suitable for teaching experiments and engineering research, allowing observation of the influence of speed changes on acceleration and force, providing more accurate experimental data.

[0060] In some embodiments, see Figure 3 As shown, the rotation parameter control submodule 62 further includes a rotation radius control submodule 65, which is connected to the adjustment module 80.

[0061] The aforementioned rotation radius control submodule 65, through the control adjustment module 80, dynamically adjusts the position of the receiving box 20 based on set parameters or measurement feedback information, ensuring that its radius from the rotation center meets the expected value. Driven by the motor 140 or through intelligent mechanical adjustment, the rotation radius can be automatically adjusted under different experimental requirements, avoiding errors from manual adjustment and improving experimental accuracy. The rotation radius control submodule 65 can be linked with the data processing module 50 to automatically optimize the radius setting based on real-time measured acceleration or angular velocity data, ensuring more accurate experimental data.

[0062] In some embodiments, see Figure 3 As shown, the device also includes a wireless communication module 110, which is connected to the data processing module 50 and is used to send the data processed by the data processing module 50 to a preset receiving device.

[0063] In this way, the measurement data (such as normal acceleration, tangential acceleration, angular velocity, etc.) processed by the data processing module 50 via the wireless communication module 110 can be transmitted in real time to a preset receiving device (such as a computer, mobile terminal, cloud server, etc.). Remote transmission reduces the reliance on wired connections, making the experimental environment cleaner, avoiding problems such as tangled data cables or signal interference, and improving the stability of the system.

[0064] As can be seen from the above, the embodiment of this specification provides a circular motion acceleration measuring device, which includes a frame, a housing, a measuring ball, a display module, a data processing module, a control module, and a rotation drive module. The center of the frame is connected to the power output shaft of the rotation drive module, and the frame has a U-shaped groove structure. The measuring ball is located inside the housing, which is situated within the groove of the frame, and multiple pressure sensors are disposed within the housing. Each pressure sensor contains a predetermined number of brushes. The multiple pressure sensors are connected to the data processing module, which is in turn connected to the display module. The control module is connected to the rotation drive module, which includes a power control submodule and a rotation parameter control submodule. Thus, the U-shaped groove frame and housing design achieve stable motion of the measuring ball during rotation, and the use of multiple pressure sensors and brushes to replace traditional wires avoids wire entanglement problems, improving the accuracy and stability of the measurement. Compared to existing accelerometers, this device can comprehensively measure the effects of normal acceleration, tangential acceleration, and angular velocity on the device, and present the measurement results in real time through the data processing and display modules, thereby improving the intuitiveness and accuracy of the experiment and more effectively assisting teaching and research.

[0065] In a specific scenario example, a circular motion acceleration measuring device provided in this specification can be applied, and the specific implementation process may include the following.

[0066] When studying the curvilinear motion of a particle, both tangential and normal accelerations are needed to describe the changes in the particle's state of motion. This is because a particle undergoing curvilinear motion experiences not only a change in the magnitude of its velocity but also a change in its direction. Tangential acceleration describes the change in the magnitude of the velocity, while normal acceleration describes the change in the direction of the velocity. Therefore, acceleration can be expressed as:

[0067]

[0068] Beginners often struggle to understand that the acceleration of circular motion is the result of the combination of tangential and normal acceleration, and even more so to grasp the differences and similarities between tangential and normal acceleration. Current acceleration demonstrators can demonstrate the existence of normal acceleration, but they cannot fully demonstrate the effects of normal acceleration, tangential acceleration, and angular velocity on it.

[0069] To address the problems in existing technologies, this specification describes a circular motion acceleration measuring device. It can visually display normal acceleration, positive and negative tangential acceleration, and angular velocity. It can show the changes in normal and tangential acceleration as curves, and can calculate the radius of curvature and angular acceleration based on the measured data. This makes the concepts of tangential and normal acceleration easier to understand. Applying this measuring device in classroom teaching helps students deepen their understanding of tangential and normal acceleration, improving teaching effectiveness.

[0070] Specifically, the circular motion acceleration measuring device includes a rotation drive module 70, which is a motor 140 mounted below a partition 100. The partition 100 and frame 10 are fixed together by screws 90 to ensure the stability of the frame 10 during rotation. The rotation drive module 70, partition 100, and frame 10 are fixed to the same vertical rotation axis, enabling the motor 140 to drive the frame 10 to rotate. The frame 10 has a U-shaped groove to facilitate the insertion and removal of the receiving box 20 and the measuring ball 30. The diameter of the measuring ball 30 is 10mm, and the width and height of the receiving box 20 are slightly larger than the diameter of the measuring ball 30. There are two elongated cutouts 81 on the left sides of the frame 10, with the cutout length greater than the length of the receiving box 20, to facilitate adjustment of the position of the receiving box 20, i.e., the radius of rotation being measured. The screws 90 pass through the cutouts and one side of the receiving box 20 to reach the interior of the receiving box 20, serving two purposes: first, to fix the receiving box 20, and second, to intercept the measuring ball 30, preventing it from slipping out of the receiving box 20. The receiving box 20 is open only on one inward side, which serves as the inlet and outlet for the measuring ball 30. Three pressure sensors 120 are mounted on three adjacent faces of the closed side of the receiving box 20: the front, back, and side. When the motor 140 drives the frame 10 to rotate, the measuring ball 30 inside the frame 10 moves in the tangential and normal directions. Due to inertia, the measuring ball 30 applies pressure to two of the pressure sensors 120, and the data from this movement is transmitted to the display module 40 through the pressure sensors 120. Each pressure sensor 120 contains four brushes 130, for a total of 12 brushes 130 across the three sensors. The rotation of the frame 10 causes the brushes 130 to slide on a potentiometer. After signal processing, the pressure is converted into a digital signal. Using brushes 130 instead of traditional wires avoids the problem of wires tangling during the rotation of the frame 10. The circular motion acceleration measuring device also includes a power control submodule 61 and a rotation parameter control submodule 62 (rotation direction control submodule 63 and rotation speed control submodule 64). The rotation speed control submodule 64 controls the rotation speed of the motor 140, and the rotation direction control submodule 63 controls the rotation direction of the motor 140. The display module 40 is actually an intelligent controller that can display normal acceleration, angular velocity, and positive and negative tangential acceleration. The sampling rate is 10 times / second, the display method is a 5-digit 0.8-inch LED digital tube, the communication serial port is a standard serial RS232 / 485 bidirectional interface, the power supply is 220VAC / 50Hz, and the communication serial port can upload the sampled data to a computer. When the power control submodule 61 is pressed, the motor 140 drives the rotation drive module 70 to accelerate, the angular acceleration ω′>0, and the tangential acceleration a is displayed on the display module 40. t >0, normal acceleration a n >0; When motor 140 drives rotary drive module 70 to rotate at a constant speed, the angular acceleration ω′=0, and the tangential acceleration a on display module 40 is 0. t =0, during the uniform rotation phase, display module 40 shows an >0 and remains constant; when decelerating, the angular velocity decreases, then ω′<0, and a on the display screen t <0.

[0071] The recordings from the circular motion acceleration measuring device clearly demonstrate the causes and differences between tangential and normal acceleration, and also visually show the influence of angular velocity and angular acceleration on tangential and normal acceleration. The display module 40 can display curves showing the changes in tangential acceleration (positive and negative) and normal acceleration as the motor 140 rotates. Figure 4 This refers to the computer display.

[0072] In some embodiments, the measurement data are shown in Table 1.

[0073] Table 1

[0074]

[0075]

[0076] With the mass of the ball m = 0.0166 kg and the rotational speed n = 145 rpm, the calculated value of r = 0.089 m ≈ 9 cm is consistent with the design result.

[0077] The graph showing the relationship between normal acceleration and radius of curvature at a constant rotational speed is shown below. Figure 5 For a given radius, the graph showing the relationship between normal acceleration and rotational speed is shown below. Figure 6 .from Figure 5 It can be seen that at a constant rotational speed, the normal acceleration is directly proportional to the radius of curvature. Figure 6 It can be seen that, for a given radius, the normal acceleration and rotational speed have a quadratic relationship. This is consistent with actual conditions.

Claims

1. A device for measuring the acceleration of circular motion, characterized in that, The device includes a frame, a housing, a measuring ball, a display module, a data processing module, a control module, and a rotation drive module, wherein... The center of the frame is connected to the power output shaft of the rotary drive module, and the frame has a U-shaped groove structure to ensure that the frame rotates synchronously with the rotary drive module, providing a stable rotation environment for the measuring ball; The measuring ball is located inside the receiving box, which is located within the groove of the frame, and multiple pressure sensors are provided inside the receiving box; The pressure sensor is equipped with a preset number of brushes, which slide on the potentiometer as the frame rotates to avoid wire tangling. The plurality of pressure sensors are connected to the data processing module. The plurality of pressure sensors convert the measured pressure signals into electrical signals and transmit them to the data processing module through brushes to reduce mechanical wear caused by rotation. The data processing module is connected to the display module; the data processing module is used to calculate the normal acceleration, tangential acceleration and angular velocity parameters of the measuring ball; The control module is connected to the rotation drive module; wherein, the control module includes a power control submodule and a rotation parameter control submodule, the rotation parameter control submodule being used to adjust the rotation speed and rotation direction of the rotation drive module.

2. The apparatus according to claim 1, characterized in that, The container is in an unclosed state, and the orientation of the unclosed side of the container within the frame is related to the rotation direction of the rotation drive module. The plurality of pressure sensors are respectively located on multiple adjacent sides of the container other than the unclosed side.

3. The apparatus according to claim 2, characterized in that, The device also includes an adjustment module. The receiving box is located in the groove of the frame and is connected to the frame via the adjustment module. The adjustment module is used to adjust the rotation radius of the receiving box within the frame.

4. The apparatus according to claim 3, characterized in that, An adjustment module is respectively configured at both ends of the groove of the frame.

5. The apparatus according to claim 4, characterized in that, The adjustment module includes screws that pass through the unclosed side of the housing to secure the housing within a groove in the frame.

6. The apparatus according to claim 1, characterized in that, The device also includes a partition and a power switch. The power output shaft of the rotary drive module passes through the partition and is connected to the center of the frame. The power switch is connected to the control module.

7. The apparatus according to claim 3, characterized in that, The display module includes a normal acceleration display submodule, an angular velocity display submodule, a negative tangential acceleration display submodule, and a positive tangential acceleration display submodule.

8. The apparatus according to claim 7, characterized in that, The rotation parameter control submodule includes a rotation direction control submodule and a rotation speed control submodule, and the rotation parameter control submodule is connected to the data processing module.

9. The apparatus according to claim 8, characterized in that, The rotation parameter control submodule also includes a rotation radius control submodule, which is connected to the adjustment module.

10. The apparatus according to claim 1, characterized in that, The device further includes a wireless communication module, which is connected to the data processing module and is used to send the data processed by the data processing module to a preset receiving device.

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