Device for measuring sound velocities of liquids at different temperatures
By designing a slidable ultrasonic probe and adjustment mechanism in a device that measures the sound speed of liquids at different temperatures, the problem of inconvenient contact between the ultrasonic transducer and the sample liquid container in the prior art is solved, and the simplicity of operation and the improvement of measurement efficiency is achieved.
Patent Information
- Application Number
- CN202421124467.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the prior art, when measuring the sound speed of liquids at different temperatures, the close contact between the ultrasonic transducer and the outer wall of the sample liquid container is inconvenient, resulting in low measurement efficiency and inconvenient operation.
A device including a base, a water-cooled heat dissipation block, a semiconductor refrigeration plate and a copper block is designed. The ultrasonic probe can slide forward and backward in the movable hole. Through the adjustment mechanism, the ultrasonic probe can be pushed in close contact with the outer wall of the container with elastic force, simplifying operation and improving measurement. efficiency.
The ultrasonic probe is in close contact with the outer wall of the container, which is simple to operate and easy to use, and significantly improves the measurement efficiency and practicality.
Smart Images
Figure CN222258464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of devices for measuring the sound speed of liquids at different temperatures, in particular to a device for measuring the sound speed of liquids at different temperatures. Background Art
[0002] The speed of sound is the speed at which mechanical waves propagate in a medium. It reflects the energy transfer process in the medium and is one of the important parameters of the medium's characteristics. At present, by measuring the speed of sound, it is easy to obtain important industrial parameters such as the compression coefficient of the medium. The methods for measuring the speed of sound include the echo method, resonance interference method, phase comparison method, ultrasonic grating method, etc.
[0003] For example, a Chinese patent (publication number: CN219200608U) discloses a system for measuring the temperature coefficient of the speed of sound of a liquid. In this scheme, a temperature control heating device is added to the optical path system, and the temperature control heating device is used to precisely control the heating and constant temperature of a target liquid sample in a sample pool, so that the target liquid sample receives the ultrasonic wave control emitted by the ultrasonic transducer of the ultrasonic signal source at the target temperature to form the required ultrasonic grating. In this way, after the laser passes through the light-transmitting window of the temperature-control heating device through the slit and enters the target liquid sample, it will be emitted from the light-transmitting window on the other side under the action of the ultrasonic grating, and form diffraction stripes on the light screen through the action of the convex lens, and the sound speed at the target temperature is determined based on the above-mentioned sound speed formula.
[0004] However, the above-mentioned search patent still has some shortcomings. After the sample liquid container is placed in the device, the ultrasonic transducer needs to be in close contact with the outer wall of the container. The technology disclosed in the above-mentioned search patent is not convenient for quickly adjusting the ultrasonic transducer to make it abut against the outer wall of the sample liquid container during use, which reduces the measurement efficiency and is inconvenient to use. Therefore, a device for measuring the sound velocity of liquids at different temperatures is proposed to solve the above problem. Utility Model Content
[0005] In view of the shortcomings of the prior art, the utility model provides a device for measuring the sound velocity of liquids at different temperatures, which has the advantages of simple operation and easy use, and solves the problem that the technology disclosed in the above-mentioned search patent is not convenient in operation and has low measurement efficiency.
[0006] To achieve the above object, the utility model provides the following technical solutions: a device for measuring the sound velocity of liquids at different temperatures, comprising a base, a mounting groove is provided on the top surface of the base, a water-cooled heat sink is fixed on the inner bottom wall of the mounting groove, a semiconductor refrigeration sheet is fixed on the top surface of the water-cooled heat sink, a copper block is fixed on the top surface of the semiconductor refrigeration sheet, a placement groove is provided on the top surface of the copper block, a movable hole connected to the placement groove is provided on the back of the copper block, an ultrasonic probe is slidably connected in the movable hole, and an adjustment mechanism for adjusting the ultrasonic probe is provided on the copper block;
[0007] The adjustment mechanism includes two guide rods fixed on the back of the copper block, a limit plate is fixed on the outer peripheral wall of the guide rod, a mounting plate is slidably connected between the two guide rods, the ultrasonic probe is fixed to the mounting plate, two accommodating grooves are provided on the back of the mounting plate, and a spring is mounted on the outer peripheral wall of the guide rod.
[0008] Furthermore, the adjustment mechanism also includes a connecting plate slidably connected to the back of the copper block, two guide blocks are fixed on the front of the connecting plate, two guide grooves for sliding connection of the guide blocks are opened on the back of the copper block, and two extrusion blocks are fixed on the bottom of the connecting plate.
[0009] Furthermore, a shell is mounted on the outer peripheral wall of the copper block, and the shell is fixed to the base by bolts. A placement hole is provided on the top surface of the shell, which is opposite to the placement slot up and down. Light holes are provided on the left and right sides of the copper block and the left and right sides of the shell. Temperature measuring holes are provided on the front of the copper block and the front of the shell.
[0010] Furthermore, an elastic sheet is fixed to the top surface of the copper block, the elastic sheet is an L-shaped sheet and its bottom end extends into the placement groove, and the movable hole is used for the ultrasonic probe to slide back and forth inside the elastic sheet.
[0011] Furthermore, a guide hole is provided on the front side of the mounting plate, which is connected to the accommodating groove and is used for the guide rod to pass through and to fit with the accommodating groove, and the two guide rods are respectively located on the left and right sides of the movable hole.
[0012] Furthermore, the spring is arranged in the accommodating groove, the guide groove is used for allowing the guide block to slide up and down inside the guide groove, the extrusion block is a right-angle trapezoidal block, and the two extrusion blocks are respectively located on the left and right sides of the movable hole.
[0013] Furthermore, a movable groove which is connected to the bottom surface of the shell and is used for the adjustment mechanism to move up and down inside the shell is opened on the back side of the shell, and the shell is a heat-insulating shell.
[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0015] The device for measuring the sound velocity of liquids at different temperatures has an ultrasonic probe that can slide back and forth inside a movable hole. When in use, the ultrasonic probe is slid backward, and then a container storing a sample liquid is placed inside the placement groove. The elastic force generated by the adjustment mechanism pushes the ultrasonic probe forward to closely contact with the outer wall of the container. The device is simple to operate, easy to use, and convenient for measuring operations. It has better practicality and is more convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front cross-sectional schematic diagram of the utility model;
[0017] Figure 2 It is a three-dimensional schematic diagram of the housing of the utility model;
[0018] Figure 3 It is a top cross-sectional schematic diagram of the copper block of the utility model;
[0019] Figure 4 It is a side cross-sectional schematic diagram of the copper block of the utility model.
[0020] In the figure: 1 base, 2 mounting slot, 3 water cooling heat sink, 4 semiconductor refrigeration plate, 5 copper block, 6 placement slot, 7 movable hole, 8 ultrasonic probe, 901 guide rod, 902 mounting plate, 903 limit plate, 904 receiving slot, 905 spring, 906 connecting plate, 907 guide block, 908 guide slot, 909 extrusion block, 10 shell, 11 placement hole, 12 light hole, 13 temperature measuring hole, 14 elastic sheet. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-3 In the present embodiment, a device for measuring the sound velocity of liquids at different temperatures comprises a base 1, a mounting groove 2 is provided on the top surface of the base 1, a water-cooled heat sink 3 is fixed on the inner bottom wall of the mounting groove 2, a semiconductor refrigeration sheet 4 is fixed on the top surface of the water-cooled heat sink 3, a copper block 5 is fixed on the top surface of the semiconductor refrigeration sheet 4, a placement groove 6 is provided on the top surface of the copper block 5, an active hole 7 connected to the placement groove 6 is provided on the back of the copper block 5, an ultrasonic probe 8 is slidably connected in the active hole 7, the active hole 7 is used for the ultrasonic probe 8 to slide back and forth inside it, an adjustment mechanism for adjusting the ultrasonic probe 8 is provided on the copper block 5, and the ultrasonic probe 8 can slide back and forth inside the active hole 7. When in use, the ultrasonic probe 8 is slid backward, and then the container for storing the sample liquid is placed in the placement groove 6, and the elastic force generated by the adjustment mechanism pushes the ultrasonic probe 8 forward, and then it is in close contact with the outer wall of the container. The operation is simple, the use is convenient, and the measurement operation is convenient, which effectively improves the measurement efficiency, has better practicality, and is more convenient for popularization and use.
[0023] See also Figure 1-3The adjustment mechanism includes two guide rods 901 fixed on the back of the copper block 5, and a limit plate 903 is fixed on the outer peripheral wall of the guide rod 901. A mounting plate 902 is slidably connected between the two guide rods 901. The ultrasonic probe 8 is fixed to the mounting plate 902. Two receiving grooves 904 are provided on the back of the mounting plate 902. A spring 905 is sleeved on the outer peripheral wall of the guide rod 901. The spring 905 is arranged in the receiving groove 904. An elastic sheet 14 is fixed on the top surface of the copper block 5. The elastic sheet 14 is an L-shaped sheet and its bottom end extends into the placement groove 6. When in use, the mounting plate 902 is moved along the two guide rods 901. The outer wall slides backward and cooperates with the limiting plate 903 and the accommodating groove 904 to compress the spring 905. Further, the mounting plate 902 drives the ultrasonic probe 8 to slide backward inside the movable hole 7. At this time, the container storing the sample liquid is placed into the placement groove 6, and the elastic force generated by the elastic sheet 14 pushes the container backward so that the outer wall of the container can contact the inner wall of the rear side of the placement groove 6. At this time, the mounting plate 902 is released, and the spring 905 drives the mounting plate 902 to move forward, so that the ultrasonic probe 8 slides forward inside the movable hole 7, so that its front end can be in close contact with the rear side wall of the sample liquid storage container, and then the relevant measurement operations can be performed.
[0024] A guide hole is provided on the front side of the mounting plate 902 , which is connected to the receiving groove 904 and is used for the guide rod 901 to pass through and to fit with the receiving groove 904 . The two guide rods 901 are respectively located on the left and right sides of the movable hole 7 .
[0025] See also Figure 4In this embodiment, the adjustment mechanism also includes a connecting plate 906 slidably connected to the back of the copper block 5, two guide blocks 907 are fixed on the front of the connecting plate 906, and two guide grooves 908 are provided on the back of the copper block 5 for the guide blocks 907 to slide and connect. The guide grooves 908 are used for the guide blocks 907 to slide up and down therein. Two extrusion blocks 909 are fixed to the bottom surface of the connecting plate 906. The extrusion blocks 909 are right-angled trapezoidal blocks. The two extrusion blocks 909 are respectively located on the left and right sides of the movable hole 7. When it is necessary to move the mounting plate 902 backward, the connecting plate 906 is pressed downward, and the connecting plate 906 cooperates with the guide blocks 907 and the guide grooves 908 to slide downward, and the connecting plate 906 drives the two extrusion blocks 909 to be inserted into the mounting plate 902. The mounting plate 902 is pressed between the mounting plate 902 and the copper block 5, thereby squeezing the mounting plate 902 to slide backward along the outer peripheral wall of the two guide rods 901, which is convenient for operation. In addition, during operation, if the squeezing block 909 moves to the front side of the mounting plate 902, and the connecting plate 906 has not moved to the front side of the mounting plate 902, then the release spring 905 will push the mounting plate 902 to move forward and reset, achieving the effect of automatic reset when releasing the hand. If both the squeezing block 909 and the connecting plate 906 move to the front side of the mounting plate 902, then the connecting plate 906 is released at this time, and the spring 905 cannot push the mounting plate 902 to move forward and reset, achieving the effect of locking and being unable to reset when releasing the hand. Different effects can be obtained by adjusting the downward movement distance of pressing the connecting plate 906, and the operation flexibility is higher.
[0026] See also Figure 1-2 In this embodiment, a shell 10 is mounted on the outer peripheral wall of the copper block 5. A movable groove is provided on the back of the shell 10, which is connected to the bottom surface thereof and is used for the adjustment mechanism to move up and down inside the shell 10. The shell 10 is a heat-insulating shell. The shell 10 is fixed to the base 1 by bolts. When in use, the temperature of the copper block 5 is controlled by the semiconductor refrigeration sheet 4 provided, and the semiconductor refrigeration sheet 4 is cooled by an external water source through the water-cooled heat sink 3. A placement hole 11 is provided on the top surface of the shell 10, which is opposite to the placement groove 6 in the upper and lower sides. The left and right sides of the copper block 5 and the left and right sides of the shell 10 are A light through hole 12 is provided, and a temperature measuring hole 13 is provided on the front of the copper block 5 and the front of the shell 10. When measuring, the light source emits a laser, which passes through the light through hole 12 after passing through the slit and the convex lens. At this time, the ultrasonic probe 8 is turned on to form Raman-Ness diffraction, and the sound propagation speed in the liquid at the current temperature can be calculated by measuring parameters such as the diffraction fringe spacing and the grating and light screen spacing. The slit, convex lens, light source and signal generator of the ultrasonic probe 8 all belong to the existing public technology, so their specific structure and working principle will not be described in detail in this article.
[0027] The working principle of the above embodiment is:
[0028] When in use, the connecting plate 906 is pushed downward so that the connecting plate 906 cooperates with the guide block 907 and the guide groove 908 to slide downward, and the connecting plate 906 drives the two extrusion blocks 909 to be inserted between the mounting plate 902 and the copper block 5, and then squeezes the mounting plate 902 to slide backward along the outer peripheral wall of the two guide rods 901 and cooperates with the limit plate 903 and the accommodating groove 904 to compress the spring 905. Further, the mounting plate 902 drives the ultrasonic probe 8 to slide backward inside the movable hole 7. At this time, the container for storing the sample liquid is placed into the placement groove 6, and the elastic force generated by the elastic sheet 14 pushes the container backward so that the outer wall of the container can contact the inner wall of the rear side of the placement groove 6. Further, the connecting plate 906 is moved up, and the spring 905 drives the mounting plate 902 to move forward, so that the ultrasonic probe 8 slides forward inside the movable hole 7, so that its front end can be in close contact with the rear side wall of the sample liquid storage container. At this time, relevant measurement operations can be performed.
[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for measuring the sound velocity of liquids at different temperatures, comprising a base (1), characterized in that: The top surface of the base (1) is provided with a mounting groove (2), a water-cooled heat sink (3) is fixed on the inner bottom wall of the mounting groove (2), a semiconductor refrigeration plate (4) is fixed on the top surface of the water-cooled heat sink (3), a copper block (5) is fixed on the top surface of the semiconductor refrigeration plate (4), a placement groove (6) is provided on the top surface of the copper block (5), a movable hole (7) connected to the placement groove (6) is provided on the back surface of the copper block (5), an ultrasonic probe (8) is slidably connected in the movable hole (7), and an adjustment mechanism for adjusting the ultrasonic probe (8) is provided on the copper block (5); The adjustment mechanism comprises two guide rods (901) fixed on the back side of the copper block (5), a limit plate (903) is fixed on the outer peripheral wall of the guide rods (901), a mounting plate (902) is slidably connected between the two guide rods (901), the ultrasonic probe (8) is fixed to the mounting plate (902), two receiving grooves (904) are provided on the back side of the mounting plate (902), and a spring (905) is sleeved on the outer peripheral wall of the guide rods (901).
2. The device for measuring the sound velocity of liquids at different temperatures according to claim 1, characterized in that: The adjustment mechanism also includes a connecting plate (906) slidably connected to the back of the copper block (5), two guide blocks (907) are fixed on the front of the connecting plate (906), two guide grooves (908) for sliding connection of the guide blocks (907) are provided on the back of the copper block (5), and two extrusion blocks (909) are fixed on the bottom of the connecting plate (906).
3. The device for measuring the sound velocity of liquids at different temperatures according to claim 1, characterized in that: A shell (10) is mounted on the outer peripheral wall of the copper block (5), and the shell (10) is fixed to the base (1) by bolts. A placement hole (11) is provided on the top surface of the shell (10) and is opposite to the placement groove (6) in the upper and lower directions. Light holes (12) are provided on the left and right sides of the copper block (5) and the left and right sides of the shell (10). A temperature measuring hole (13) is provided on the front side of the copper block (5) and the front side of the shell (10).
4. The device for measuring the sound velocity of liquids at different temperatures according to claim 1, characterized in that: An elastic sheet (14) is fixed to the top surface of the copper block (5); the elastic sheet (14) is an L-shaped sheet and its bottom end extends into the placement groove (6); the movable hole (7) is used for the ultrasonic probe (8) to slide back and forth inside the elastic sheet (14).
5. The device for measuring the sound velocity of liquids at different temperatures according to claim 1, characterized in that: The front side of the mounting plate (902) is provided with a guide hole which is in communication with the receiving groove (904) and is used for the guide rod (901) to pass through and to fit with the guide rod in a clearance. The two guide rods (901) are respectively located on the left and right sides of the movable hole (7).
6. The device for measuring the sound velocity of liquids at different temperatures according to claim 2, characterized in that: The spring (905) is arranged in the receiving groove (904), the guide groove (908) is used for the guide block (907) to slide up and down inside it, the extrusion block (909) is a right-angle trapezoidal block, and the two extrusion blocks (909) are respectively located on the left and right sides of the movable hole (7).
7. The device for measuring the sound velocity of liquids at different temperatures according to claim 3, characterized in that: The back of the outer shell (10) is provided with a movable groove which is in communication with the bottom surface thereof and is used for the adjustment mechanism to move up and down inside the movable groove. The outer shell (10) is a heat-insulating shell.