Physical experiment device for exploring relationship between sound velocity and concentration
The physical experimental device, which integrates a chassis, an experimental tank, a TDS concentration measurement system, and a temperature control system, solves the problems of large size, complicated operation, and inaccurate measurement in existing devices, and realizes compact, flexible, and accurate sound velocity measurement, which is suitable for the study of sound velocity of solutions with different concentrations in education and scientific research.
Patent Information
- Application Number
- CN202422340965.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-25
AI Technical Summary
Existing sound velocity measurement and exploration devices are large in size, high in value, poor in flexibility, complex in operation, and the measurement results are not accurate enough, which cannot meet the needs of studying the sound velocity change law of solutions with different concentrations in education and scientific research.
A physical experimental device was designed, which included a chassis, an experimental tank, a TDS concentration measurement system, a temperature control system, and an electronic control system. It integrated an ultrasonic transmitter and receiver, combined with TDS concentration measurement and temperature control functions, and calculated the sound velocity through the electronic control system to achieve accurate measurement.
It realizes a compact, flexible and easy-to-operate sound velocity measurement, can accurately measure the sound velocity in solutions of different concentrations, and adapt to various experimental needs.
Smart Images
Figure CN223413796U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of physical experiments, in particular to a physical experiment device for exploring the relationship between sound velocity and concentration. Background Art
[0002] On the one hand, the speed of sound is an important parameter in physics, and its propagation speed in different media can reflect the physical properties of the medium. Traditional methods for measuring the speed of sound mainly focus on common media such as air and water, but there are few studies on the relationship between the speed of sound in a solution and the concentration of the solution. The change in the speed of sound in a solution is not only related to the physical properties of the solution, but also closely related to the type and concentration of the solute. Existing experimental devices for measuring and exploring the speed of sound are bulky, expensive, inflexible, complex to operate, and the measurement results are not accurate enough, and cannot meet the needs of different physical experiments. Especially in the fields of education and scientific research, there is an urgent need for an experimental device that is small in size, more flexible, easy to operate, and can accurately measure the speed of sound in a solution, so as to facilitate the study of the changing law of the speed of sound in solutions of different concentrations.
[0003] Total Dissolved Solids (TDS), on the other hand, is an important indicator for measuring the total amount of dissolved substances in a solution and is widely used in fields such as water quality testing. The TDS value indirectly reflects the concentration of a solution, making it possible to study the relationship between sound velocity and concentration in a solution. Utility Model Content
[0004] The purpose of the utility model is to address the above-mentioned shortcomings and provide a physical experimental device for exploring the relationship between sound speed and concentration, which is small in size, more flexible, easy to operate and can accurately measure the sound speed in solution.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A physical experimental device for exploring the relationship between sound speed and concentration includes a chassis, an experimental tank, a TDS concentration measurement system, a temperature control system, and an electronic control system. The experimental tank is installed on one side of the chassis. The TDS concentration measurement system is used to detect the concentration of a solution in the experimental tank. The temperature control system is used to control the temperature of the solution in the experimental tank. The electronic control system is used to control the TDS concentration measurement system and the temperature control system. An ultrasonic transmitter and an ultrasonic receiver are fixed at one end of the experimental tank. A shielding plate is clamped in the experimental tank, and the shielding plate is arranged directly opposite the transmitting end of the ultrasonic transmitter. The TDS concentration measurement system, temperature control system, ultrasonic transmitter, and ultrasonic receiver are all electrically connected to the electronic control system.
[0007] Furthermore, the TDS concentration measurement system includes a TDS module installed in the chassis, a probe card slot fixed in the experimental tank, and a TDS probe clamped in the probe card slot. The TDS module and the TDS probe are connected by a wire, and the detection end of the TDS probe is set toward the bottom of the experimental tank.
[0008] Furthermore, a query button, a record button, a temperature adjustment button, a temperature display, a concentration display and a sound speed display are embedded on one side of the chassis; the electronic control system includes an electrically connected microcontroller circuit board and a digital display control circuit board, the ultrasonic transmitter, the ultrasonic receiver and the TDS module are all electrically connected to the microcontroller circuit board, and the query button, the record button, the temperature adjustment button, the temperature display, the concentration display and the sound speed display are all electrically connected to the digital display control circuit board.
[0009] Furthermore, the temperature control system includes an electric heating network embedded in the bottom of the experimental tank and a temperature sensor embedded in the experimental tank. The electric heating network and the temperature sensor are both electrically connected to the digital display control circuit board.
[0010] Furthermore, a slide groove is provided on the inner side of the bottom of the experimental tank, and the bottom end of the shielding plate is slidably connected to the slide groove.
[0011] Furthermore, a slot is provided on the chassis, an insert block is provided on one side of the experimental slot, and one side of the experimental slot is connected to the slot via the insert block.
[0012] Furthermore, a drain pipe is provided on one side of the experimental tank, the drain pipe is provided close to the bottom of the experimental tank, and a valve body is provided on the drain pipe.
[0013] The beneficial effects of the utility model are:
[0014] In actual application, when using, the experimenter adds the prepared solution, such as sodium chloride solution, into the experimental tank in multiple times. After each pouring, the ultrasonic transmitter emits a pulse. The ultrasonic wave encounters a baffle and is returned. It is received by the ultrasonic receiver, and the time interval data t is sent to the electronic control system. The concentration of the solution in the experimental tank is detected by the TDS concentration measurement system, and the test result is sent to the electronic control system. The electronic control system calculates the sound speed based on the time interval data t and the solution concentration. Both the ultrasonic transmitter and the ultrasonic receiver are model HC-R. The utility model is compact, more flexible, easy to operate, and can accurately measure the sound speed in the solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;
[0016] Figure 2This is a structural diagram of the utility model from a second viewing angle;
[0017] Figure 3 It is a top view of the utility model;
[0018] Figure 4 It is the logic block diagram of the electric control system in this utility model;
[0019] Figure numerals: chassis 1; query button 11; record button 12; temperature adjustment button 13; temperature display 14; concentration display 15; sound velocity display 16; experimental tank 2; slide 21; plug block 22; drain pipe 23; ultrasonic transmitter 31; ultrasonic receiver 32; TDS module 41; probe card slot 42; TDS probe 43; wire 44; microcontroller circuit board 51; digital display control circuit board 52; electric heating network 6; shielding plate 7. DETAILED DESCRIPTION
[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a physical experimental device for exploring the relationship between sound speed and concentration includes a chassis 1, an experimental tank 2, a TDS concentration measurement system, a temperature control system and an electronic control system. The experimental tank 2 is installed on one side of the chassis 1, the TDS concentration measurement system is used to detect the concentration of the solution in the experimental tank 2, the temperature control system is used to control the temperature of the solution in the experimental tank 2, and the electronic control system is used to control the TDS concentration measurement system and the temperature control system; an ultrasonic transmitter 31 and an ultrasonic receiver 32 are fixed at one end of the experimental tank 2, and a baffle 7 is clamped in the experimental tank 2, and the baffle 7 is arranged opposite to the transmitting end of the ultrasonic transmitter 31, and the TDS concentration measurement system, temperature control system, ultrasonic transmitter 31 and ultrasonic receiver 32 are all electrically connected to the electronic control system.
[0021] During use, the experimenter adds the prepared solution, such as sodium chloride solution, into the experimental tank 2 in multiple times. After each pouring, the ultrasonic transmitter 31 emits a pulse. The ultrasonic wave encounters the baffle 7 and is returned. It is received by the ultrasonic receiver 32, and the time interval data t is sent to the electronic control system. The concentration of the solution in the experimental tank 2 is detected by the TDS concentration measurement system, and the detection result is sent to the electronic control system. The electronic control system calculates the sound speed based on the time interval data t and the solution concentration. The ultrasonic transmitter 31 and the ultrasonic receiver 32 are both model HC-R04. The utility model is small in size, more flexible, easy to operate, and can accurately measure the sound speed in the solution.
[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the TDS concentration measurement system includes a TDS module 41 installed in the chassis 1, a probe card slot 42 fixed in the experimental tank 2, and a TDS probe 43 clamped in the probe card slot 42. The TDS module 41 and the TDS probe 43 are connected by a wire 44, and the detection end of the TDS probe 43 is set toward the bottom of the tank of the experimental tank 2. In this embodiment, when in use, the prepared solution should submerge the detection end of the TDS probe 43. The solution concentration is detected by the TDS probe 43, the wire 44 and the TDS module 41, and the detection result is sent to the electronic control system.
[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a query button 11, a record button 12, a temperature adjustment button 13, a temperature display 14, a concentration display 15 and a sound speed display 16 are embedded on one side of the chassis 1; the electronic control system includes an electrically connected microcontroller circuit board 51 and a digital display control circuit board 52, the ultrasonic transmitter 31, the ultrasonic receiver 32 and the TDS module 41 are all electrically connected to the microcontroller circuit board 51, and the query button 11, the record button 12, the temperature adjustment button 13, the temperature display 14, the concentration display 15 and the sound speed display 16 are all electrically connected to the digital display control circuit board 52; in this embodiment, after the experimenter adds a solution such as sodium chloride solution to the experimental tank 2, the liquid level does not exceed the detection end of the TDS probe 43, and the ultrasonic transmitter 31 emits a pulse. The ultrasonic wave encounters the baffle 7 and is returned and received by the ultrasonic receiver 32. The time interval data t is sent to the microcontroller circuit board 51 in the chassis 1, and the microcontroller circuit board uses the formula through the internal program. The ultrasonic sound velocity is calculated and the data is decoded through the digital display control panel and displayed on the sound velocity display 16. A small current is conducted through the solution between the two electrodes of the TDS probe 43 and the data is transmitted to the TDS module 41. The TDS module 41 calculates the solution resistance value based on the data results. The solution resistance value is calculated according to Ohm's law. The electrode spacing L and the electrode cross-sectional area A are fixed values, thus obtaining the resistivity ρ of the solution. According to the relationship between conductivity K and resistivity ρ: The conductivity of the solution is calculated, and there is a rough relationship between the conductivity K and the solution concentration T: T=2K, so the solution concentration is calculated. Among them, the TDS module 41 transmits the processed concentration information to the microcontroller circuit board 51, which is converted into solution concentration information through code compilation. Similarly, it is imported into the digital display control panel for decoding and displayed on the concentration display 15.
[0024] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the temperature control system includes an electric heating network 6 embedded in the bottom of the experimental tank 2, and a temperature sensor embedded in the experimental tank 2. The electric heating network 6 and the temperature sensor are electrically connected to the digital display control circuit board 52; in this embodiment, the temperature to be adjusted is input through the temperature adjustment button 13, the electric heating network 6 is controlled to heat through the digital display control circuit board 52, the temperature in the experimental tank 2 is detected by the temperature sensor, and the temperature in the experimental tank 2 is displayed by the temperature display 14; when the temperature sensor detects that the temperature in the experimental tank 2 meets the detection conditions, the electric heating network 6 stops heating.
[0025] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a slide groove 21 is provided on the inner side of the bottom of the experimental tank 2, and the bottom end of the shielding plate 7 is slidably connected to the slide groove 21; in this embodiment, the shielding plate 7 slides along the slide groove 21, so that the distance between the shielding plate 7 and the ultrasonic transmitter 31 and the ultrasonic receiver 32 can be adjusted, and the implementation of the experiment is more flexible.
[0026] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a slot is provided on the chassis 1, and an insert block 22 is provided on one side of the experimental slot 2. One side of the experimental slot 2 is connected to the slot through the insert block 22. In this embodiment, the chassis 1 is connected to the experimental slot 2 by inserting the insert block 22 into the slot.
[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a drain pipe 23 is provided on one side of the experimental tank 2, and the drain pipe 23 is provided close to the bottom of the experimental tank 2. A valve body is provided on the drain pipe 23. In this embodiment, the drain pipe 23 and the valve body are used to facilitate the discharge of the tested solution from the experimental tank 2.
[0028] The specific embodiments described herein are merely examples of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods without departing from the scope of the present invention.
Claims
1. A physical experimental device for exploring the relationship between sound velocity and concentration, characterized by: The device comprises a chassis (1), an experimental tank (2), a TDS concentration measurement system, a temperature control system and an electric control system, wherein the experimental tank (2) is installed on one side of the chassis (1), the TDS concentration measurement system is used to detect the concentration of the solution in the experimental tank (2), the temperature control system is used to control the temperature of the solution in the experimental tank (2), and the electric control system is used to control the TDS concentration measurement system and the temperature control system; An ultrasonic transmitter (31) and an ultrasonic receiver (32) are fixed at one end of the experimental tank (2); a shielding plate (7) is clamped in the experimental tank (2); the shielding plate (7) is arranged opposite to the transmitting end of the ultrasonic transmitter (31); and the TDS concentration measurement system, the temperature control system, the ultrasonic transmitter (31) and the ultrasonic receiver (32) are all electrically connected to the electric control system.
2. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 1, characterized in that: The TDS concentration measurement system comprises a TDS module (41) installed in the chassis (1), a probe card slot (42) fixed in the experimental tank (2), and a TDS probe (43) clamped in the probe card slot (42). The TDS module (41) and the TDS probe (43) are connected via a wire (44), and the detection end of the TDS probe (43) is arranged toward the bottom of the experimental tank (2).
3. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 2, characterized in that: A query button (11), a record button (12), a temperature adjustment button (13), a temperature display (14), a concentration display (15) and a sound speed display (16) are embedded on one side of the chassis (1); the electric control system comprises an electrically connected microcontroller circuit board (51) and a digital display control circuit board (52); the ultrasonic transmitter (31), the ultrasonic receiver (32) and the TDS module (41) are all electrically connected to the microcontroller circuit board (51); and the query button (11), the record button (12), the temperature adjustment button (13), the temperature display (14), the concentration display (15) and the sound speed display (16) are all electrically connected to the digital display control circuit board (52).
4. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 3, characterized in that: The temperature control system comprises an electric heating network (6) embedded in the bottom of the experimental tank (2), and a temperature sensor embedded in the experimental tank (2). The electric heating network (6) and the temperature sensor are both electrically connected to the digital display control circuit board (52).
5. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 1, characterized in that: A slide groove (21) is provided on the inner side of the bottom of the experimental tank (2), and the bottom end of the shielding plate (7) is slidably connected in the slide groove (21).
6. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 1, characterized in that: The chassis (1) is provided with a slot, one side of the experimental slot (2) is provided with an insert block (22), and one side of the experimental slot (2) is connected to the slot via the insert block (22).
7. A physical experimental device for exploring the relationship between sound velocity and concentration according to claim 1, characterized in that: A drain pipe (23) is provided on one side of the experimental tank (2), the drain pipe (23) is provided close to the bottom of the experimental tank (2), and a valve body is provided on the drain pipe (23).