Viscosity coefficient measuring device based on spring oscillator

Abstract

The utility model discloses a viscosity coefficient measuring device based on a spring oscillator, which comprises a base, the upper end of the base is provided with a vertical supporting rod, the upper end of the supporting rod is provided with a horizontal supporting piece, the supporting piece is provided with a vertically downward spring oscillator, and a metal ball at the lower end of the spring oscillator is arranged in a transparent test container. The upper end of the test container is open, the lower end of the test container is fixed on the base, an electromagnet is arranged at the bottom of the test container, a laser ranging sensor is arranged between the test container and the supporting piece, a light barrier is arranged on the spring oscillator, and the light barrier and the laser ranging sensor are matched to measure vertical vibration data of the spring oscillator in the test container. And the laser distance measuring sensor and the electromagnet are electrically connected with the controller. According to the scheme, test data acquisition errors caused by human participation in the test process can be effectively reduced, and the whole device is high in intelligent degree and convenient and simple to use.

Description

Technical Field

[0001] The utility model relates to the field of viscosity coefficient research, and in particular to a viscosity coefficient measuring device based on a spring oscillator. Background Art

[0002] Viscosity is a key physical property of fluids. Understanding it not only aids in the study of physical properties but also holds significant practical significance in industrial production and scientific research. Consequently, the determination of fluid viscosity is gaining increasing attention in many fields. In 1687, Newton, while applying fluid mechanics to problems in celestial mechanics, first proposed the concept of viscosity in fluid mechanics. He defined the viscosity of a fluid as the ratio of the drag force on a unit surface of a fluid to the velocity gradient along the normal to that surface.

[0003] The common method for measuring viscosity is the falling ball method. However, the measuring device used in this method cannot ensure that the ball falls along the center line and at a constant speed. During use, the measurer needs to manually measure time with a stopwatch, which makes it difficult to measure time accurately. Therefore, the existing viscosity measurement devices have the disadvantages of large errors and inconvenience. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a viscosity coefficient measuring device based on a spring oscillator.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present utility model is:

[0006] A viscosity coefficient measuring device based on a spring oscillator is provided, which includes a base, a vertical support rod is provided at the upper end of the base, a horizontal support member is provided at the upper end of the support rod, a spring oscillator is provided on the support member and extends vertically downward, a metal sphere at the lower end of the spring oscillator is arranged in a transparent test container, the upper end of the test container is open and the lower end is fixed to the base, an electromagnet is provided at the bottom of the test container, a laser ranging sensor is provided between the test container and the support member, a light baffle is provided on the spring oscillator, the light baffle cooperates with the laser ranging sensor to measure the up and down vibration data of the spring oscillator in the test container, and the laser ranging sensor and the electromagnet are both electrically connected to a controller.

[0007] Furthermore, the laser distance measuring sensor is mounted on a horizontally arranged telescopic rod through a clamping member, and the laser distance measuring sensor is located directly above the light shielding plate.

[0008] Furthermore, the end of the telescopic rod is fixed on the first sliding sleeve, the first sliding sleeve is slidingly sleeved on the support rod, and a limiting screw for limiting position is provided on the first sliding sleeve, and the limiting screw is threadedly connected to the first sliding sleeve.

[0009] Furthermore, the end of the support rod is fixed on the second sliding sleeve, the second sliding sleeve is slidingly sleeved on the support rod, and a limiting screw for limiting is also provided on the second sliding sleeve, and the limiting screw is threadedly connected to the second sliding sleeve.

[0010] Furthermore, the cross section of the support member is in an L-shaped structure, and a plurality of through holes are provided at the horizontal end of the support member along the length direction, and the spring vibrator is suspended on the through holes.

[0011] Furthermore, the spring vibrator includes a vertically arranged spring, the upper end of the spring is suspended on the through hole by a hook, the lower end of the spring is provided with a movable block, the light baffle is fixed on the movable block, the lower end of the movable block is provided with a vertical hard traction rope, the lower end of the hard traction rope is provided with a ball net, and a metal sphere is provided in the ball net.

[0012] Furthermore, a hook is also provided at the lower end of the movable block, and the upper end of the hard traction rope is hung on the hook of the movable block through a pull ring.

[0013] Furthermore, it also includes a liquid storage container arranged on the base, the bottom of the liquid storage container is connected to the bottom of the test container through a water pipe, a control valve and a two-way water pump are provided on the water pipe, and the control valve and the two-way water pump are evenly electrically connected to the controller.

[0014] Furthermore, it also includes a power module and a remote controller, the power module is electrically connected to the controller, and the remote controller is electrically connected to the controller via a wireless module.

[0015] The beneficial effects of the present invention are as follows: the measuring device of this scheme can realize the automatic ranging of spring vibration and vibration displacement, and uses a laser ranging sensor for ranging, which can effectively reduce the test data collection error caused by human participation in the test process. The entire device has a high degree of intelligence, and the operator can operate it with a handheld remote control, which greatly reduces the difficulty of the test, improves the efficiency and accuracy of the measurement, and is easy and simple to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The diagram shows the structure of the viscosity coefficient measurement device based on the spring oscillator.

[0017] Figure 2 This is the control principle diagram of the viscosity coefficient measurement device based on the spring oscillator.

[0018] Among them, 1. liquid storage container, 2. support rod, 3. base, 4. electromagnet, 5. water pipe, 6. two-way water pump, 7. control valve, 8. test container, 9. ball net, 10. hard traction rope, 11. movable block, 12. spring, 13. support, 14. first sliding sleeve, 15. light baffle, 16. laser ranging sensor, 17. telescopic rod, 18. second sliding sleeve. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0020] like Figure 1 and Figure 2 As shown, a viscosity coefficient measuring device based on a spring oscillator includes a base 3, a vertical support rod 2 is provided at the upper end of the base 3, a horizontal support member 13 is provided at the upper end of the support rod 2, a spring oscillator 12 is provided on the support member 13, a metal sphere at the lower end of the spring oscillator 12 is set in a transparent test container 8, the upper end of the test container 8 is open and the lower end is fixed to the base 3, an electromagnet 4 is provided at the bottom of the test container 8, a laser ranging sensor 16 is provided between the test container 8 and the support member 13, a light baffle 15 is provided on the spring oscillator 12, the light baffle 15 and the laser ranging sensor 16 cooperate to measure the up and down vibration data of the spring oscillator 12 in the test container 8, and the laser ranging sensor 16 and the electromagnet 4 are both electrically connected to the controller.

[0021] In this embodiment, the laser ranging sensor 16 adopts a KJT-KELR-TE40 high-precision laser ranging sensor 16, and the controller adopts a PCB board equipped with an STM32 single-chip microcomputer.

[0022] In this embodiment, the laser ranging sensor 16 is installed on a horizontally arranged telescopic rod 17 through a clamp. The laser ranging sensor 16 is located directly above the light baffle 15. The telescopic rod 17 facilitates adjustment of the relative position of the laser ranging sensor 16 to ensure that the laser ranging sensor 16 is aligned with the light baffle 15.

[0023] In this embodiment, the end of the telescopic rod 17 is fixed to the first sliding sleeve 14, which is slidably mounted on the support rod 2. The first sliding sleeve 14 is provided with a limit screw for limiting the position, which is threadedly connected to the first sliding sleeve 14. The relative height of the laser ranging sensor 16 can be adjusted through the first sliding sleeve 14 to ensure that the distance between the laser ranging sensor 16 and the light barrier 15 is at a reasonable level.

[0024] In this embodiment, the end of the support rod 2 is fixed to the second sliding sleeve 18, which is slidably mounted on the support rod 2. The second sliding sleeve 18 is also provided with a limit screw for limiting the position, which is threadedly connected to the second sliding sleeve 18. The second sliding sleeve 18 can be used to adjust the relative height of the spring 12 vibrator to ensure that the spring 12 vibrator is properly positioned within the test container 8.

[0025] In this embodiment, the cross-section of support member 13 is L-shaped. A plurality of through-holes are provided along the length of the horizontal end of support member 13, and spring 12 is suspended from these through-holes. By suspending spring 12 from different through-holes, the relative horizontal position of spring 12 is adjusted, ensuring that spring 12 is properly positioned within test container 8.

[0026] In this embodiment, the spring 12 vibrator includes a vertically arranged spring 12, the upper end of the spring 12 is suspended on the through hole by a hook, the lower end of the spring 12 is provided with a movable block 11, the light baffle 15 is fixed on the movable block 11, the lower end of the movable block 11 is provided with a vertical hard traction rope 10, the lower end of the hard traction rope 10 is provided with a ball net 9, and a metal sphere is provided in the ball net 9.

[0027] In this embodiment, a hook is also provided at the lower end of the movable block 11, and the upper end of the hard traction rope 10 is hung on the hook of the movable block 11 through a pull ring, which is convenient for installation and disassembly.

[0028] This embodiment also includes a liquid storage container 1 mounted on a base 3. The bottom of the liquid storage container 1 is connected to the bottom of a test container 8 via a water pipe 5. The water pipe 5 is provided with a control valve 7 and a two-way water pump 6. The control valve 7 and the two-way water pump 6 are electrically connected to a controller. The control valve 7 is a solenoid valve. Before the test begins, the two-way water pump 6 can be used to fill the test container 8 with water. After the test is completed, the liquid in the test container 8 can be pumped into the liquid storage container 1 for storage.

[0029] In this embodiment, a power module and a remote controller are further included. The power module is electrically connected to the controller, and the remote controller is electrically connected to the controller via a wireless module.

[0030] The method for conducting a measurement test using the measuring device of the utility model is as follows:

[0031] S1: Assemble the measuring device first;

[0032] S2: Electromagnet 4 is energized, pulling the metal sphere downward and being attracted and held by electromagnet 4;

[0033] S3: Start the bidirectional water pump 6, open the control valve 7, and extract the measured fluid from the liquid storage container 1, ensuring that the height of the measured fluid in the test container 8 is sufficient to allow the metal sphere to vibrate completely in the measured fluid;

[0034] S4: The electromagnet 4 is powered on and off, and the metal sphere vibrates weakly damped in the measured fluid under the elastic force of the spring 12. The laser ranging sensor 16 collects and measures the displacement change of the metal sphere during the weakly damped vibration process.

[0035] S5: The collected displacement change data is saved to the host computer to facilitate subsequent analysis of the viscosity coefficient of the measured fluid.

[0036] The measuring device of this solution can realize the automatic ranging of the vibration and vibration displacement of the spring 12, and uses the laser ranging sensor 16 for ranging, which can effectively reduce the test data collection error caused by human participation in the test process. The entire device is highly intelligent, and the operator can operate it with a handheld remote control, which greatly reduces the difficulty of the test, improves the efficiency and accuracy of the measurement, and is easy and simple to use.

Claims

1. A viscosity coefficient measuring device based on a spring oscillator, characterized in that: The test device comprises a base, a vertical support rod is provided at the upper end of the base, a horizontal support member is provided at the upper end of the support rod, a spring vibrator is provided on the support member and is vertically downward, a metal sphere at the lower end of the spring vibrator is arranged in a transparent test container, the upper end of the test container is open and the lower end is fixed to the base, an electromagnet is provided at the bottom of the test container, a laser ranging sensor is provided between the test container and the support member, a light baffle is provided on the spring vibrator, the light baffle cooperates with the laser ranging sensor to measure the up and down vibration data of the spring vibrator in the test container, and the laser ranging sensor and the electromagnet are both electrically connected to the controller.

2. The viscosity coefficient measuring device based on a spring oscillator according to claim 1, characterized in that: The laser distance measuring sensor is mounted on a horizontally arranged telescopic rod through a clamping member, and the laser distance measuring sensor is located just above the light shielding plate.

3. The viscosity coefficient measuring device based on a spring oscillator according to claim 2, characterized in that: The end of the telescopic rod is fixed on the first sliding sleeve, the first sliding sleeve is slidingly sleeved on the support rod, and a limiting screw for limiting position is provided on the first sliding sleeve, and the limiting screw is threadedly connected to the first sliding sleeve.

4. The viscosity coefficient measuring device based on a spring oscillator according to claim 1, characterized in that: The end of the support rod is fixed on the second sliding sleeve, the second sliding sleeve is slidingly sleeved on the support rod, and a limiting screw for limiting position is also provided on the second sliding sleeve, and the limiting screw is threadedly connected to the second sliding sleeve.

5. The viscosity coefficient measuring device based on a spring oscillator according to claim 1, characterized in that: The cross section of the support member is in an L-shaped structure. The horizontal end of the support member is provided with a plurality of through holes along the length direction, and the spring vibrator is suspended on the through holes.

6. The viscosity coefficient measuring device based on a spring oscillator according to claim 5, characterized in that: The spring vibrator includes a vertically arranged spring, the upper end of the spring is suspended on the through hole by a hook, the lower end of the spring is provided with a movable block, the light baffle is fixed on the movable block, the lower end of the movable block is provided with a vertical hard traction rope, the lower end of the hard traction rope is provided with a ball net, and a metal sphere is provided in the ball net.

7. The viscosity coefficient measuring device based on a spring oscillator according to claim 6, characterized in that: The lower end of the movable block is also provided with a hook, and the upper end of the hard traction rope is hung on the hook of the movable block through a pull ring.

8. The viscosity coefficient measuring device based on a spring oscillator according to claim 1, characterized in that: It also includes a liquid storage container arranged on the base, the bottom of the liquid storage container is connected to the bottom of the test container through a water pipe, the water pipe is provided with a control valve and a two-way water pump, and the control valve and the two-way water pump are evenly electrically connected to the controller.

9. The viscosity coefficient measuring device based on a spring oscillator according to claim 1, characterized in that: It also includes a power module and a remote controller. The power module is electrically connected to the controller, and the remote controller is electrically connected to the controller via a wireless module.

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