CN220479324U - Piezoelectric ceramic piece and ultrasonic water meter transducer - Google Patents
Piezoelectric ceramic piece and ultrasonic water meter transducer Download PDFInfo
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- CN220479324U CN220479324U CN202320454844.8U CN202320454844U CN220479324U CN 220479324 U CN220479324 U CN 220479324U CN 202320454844 U CN202320454844 U CN 202320454844U CN 220479324 U CN220479324 U CN 220479324U
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- 239000000919 ceramic Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000465 moulding Methods 0.000 claims 1
- 239000000306 component Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- MPDDTAJMJCESGV-CTUHWIOQSA-M (3r,5r)-7-[2-(4-fluorophenyl)-5-[methyl-[(1r)-1-phenylethyl]carbamoyl]-4-propan-2-ylpyrazol-3-yl]-3,5-dihydroxyheptanoate Chemical compound C1([C@@H](C)N(C)C(=O)C2=NN(C(CC[C@@H](O)C[C@@H](O)CC([O-])=O)=C2C(C)C)C=2C=CC(F)=CC=2)=CC=CC=C1 MPDDTAJMJCESGV-CTUHWIOQSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model discloses a piezoelectric ceramic piece and an ultrasonic water meter transducer, which comprises: the first sheet body is of a ring structure; the second lamellar body, the second lamellar body is the rotator, the second lamellar body is located the inboard of first lamellar body, just first lamellar body with the second lamellar body sets up with one heart, the outward flange of second lamellar body with set for the interval between the inward flange of first lamellar body, thereby first lamellar body is different with the thickness of second lamellar body makes first lamellar body with the second lamellar body can correspond the ultrasonic wave of different frequency. The utility model can improve the accuracy of the ultrasonic water meter.
Description
Technical Field
The utility model relates to the technical field of ultrasonic water meters, in particular to a piezoelectric ceramic plate and an ultrasonic water meter transducer.
Background
In the field of ultrasonic water meters, with the continuous updating of chip technology, an ultrasonic water meter pipe section is used as a core component of the ultrasonic water meter, and an ultrasonic water meter transducer of the ultrasonic water meter pipe section is a key for directly influencing the flow repeatability and metering accuracy of the ultrasonic water meter.
Because the time for the circuit signal exciting the circular piezoelectric ceramic plate to reach the piezoelectric ceramic plate and the time for the piezoelectric ceramic plate to generate ultrasonic waves after receiving the circuit signal are not constant, the non-constant time difference can influence the forward and backward propagation time difference of the ultrasonic waves for calculating the water flow speed because of a certain time difference of response speed of the circuit and the ceramic plate in the process of generating and receiving the ultrasonic waves by the ultrasonic transducer each time. Particularly, under the condition of lower electric quantity of a circuit battery or aging of a piezoelectric ceramic plate, the time difference of the response of an ultrasonic transducer is calculated into the forward and backward propagation time difference of ultrasonic waves, so that the calculation of the water flow speed in a pipeline is influenced, and the repeatability of the flow measurement of the ultrasonic water meter is fluctuated.
In addition, a general ultrasonic water meter transducer only adopts a complete circular piezoelectric ceramic plate, and a pair of ultrasonic water meter transducers can only be used as a single sound channel. And to increase the sound channel, the number of pairs of ultrasonic water meter transducers is required to be increased. While increasing the number of pairs of ultrasonic meter transducers can adversely affect the flow field of the ultrasonic meter spool piece. In the ultrasonic water meter with smaller caliber, the number of pairs of transducer of the ultrasonic water meter cannot be arranged and increased.
Disclosure of Invention
The utility model provides a piezoelectric ceramic piece and an ultrasonic water meter transducer, which can improve the accuracy of an ultrasonic water meter.
In order to solve the above technical problems, the present utility model provides a piezoelectric ceramic sheet, including:
the first sheet body is of a ring structure;
the second lamellar body, the second lamellar body is the rotator, the second lamellar body is located the inboard of first lamellar body, just first lamellar body with the second lamellar body sets up with one heart, the outward flange of second lamellar body with set for the interval between the inward flange of first lamellar body, thereby first lamellar body is different with the thickness of second lamellar body makes first lamellar body with the second lamellar body can correspond the ultrasonic wave of different frequency.
Preferably, the thickness of the second sheet is smaller than the thickness of the first sheet.
Preferably, in the above technical solution, the first sheet body is in a shape of a circular flat plate, and the second sheet body is in a shape of a circular flat plate.
As a preferable mode of the above technical solution, the first sheet body is a spherical ring body, the second sheet body is a spherical sheet body, and the concave directions of the curved surfaces of the first sheet body and the second sheet body are identical.
As a preferable mode of the above-described aspect, the first sheet and the second sheet have different radii of curvature.
Preferably, in the above technical solution, the radius of curvature of the second sheet is smaller than the radius of curvature of the first sheet.
As a preferable aspect, the thickness of the second sheet is 1.2 to 2.8 times the thickness of the first sheet.
Preferably, the thickness of the second sheet is 2 times the thickness of the first sheet.
As a preferable aspect of the above-described aspect, the first sheet and the second sheet have the same area of the sound wave generating surface or the sound wave receiving surface.
In another aspect, the present utility model provides an ultrasonic water meter transducer, comprising: the piezoelectric ceramic piece and the shell of any one of the above, wherein the piezoelectric ceramic piece is arranged in the shell through plastic package, the piezoelectric ceramic piece is electrically connected with the ultrasonic generation assembly through a wire, and the wire extends to the outside of the shell.
The utility model provides a piezoelectric ceramic piece, which comprises a first piece body and a second piece body, wherein the first piece body is of a ring body structure, the second piece body is of a rotating body, the second piece body is arranged on the inner side of the first piece body when the piezoelectric ceramic piece is assembled and installed, the first piece body and the second piece body are separated from each other due to a set interval between the first piece body and the second piece body, and the thicknesses of the first piece body and the second piece body are different, so that the first piece body and the second piece body can correspond to ultrasonic waves with different frequencies when the piezoelectric ceramic piece works, specifically, at a transmitting end, the first piece body and the second piece body can be used for transmitting the ultrasonic waves with different frequencies, at a receiving end, the receiving end can correspond to the ultrasonic waves with different frequencies, when the ultrasonic water meter performs data acquisition, the data acquisition can be performed based on the ultrasonic waves with two different frequencies, and the comparison analysis is performed based on the two different data, and the single frequency is influenced by different flow rates, so that the accuracy of the ultrasonic water meter can be improved.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
Fig. 1 is a schematic perspective view showing a piezoelectric ceramic sheet of a first shape in the present embodiment;
fig. 2 is a schematic perspective view showing a piezoelectric ceramic sheet of a second shape in the present embodiment;
FIG. 3 is a schematic perspective view showing a piezoelectric ceramic sheet of a third shape in the present embodiment
Fig. 4 shows a schematic structural diagram of an ultrasonic water meter transducer in the present embodiment;
in the figure: 10. a first sheet body; 20. a second sheet body; 30. setting a distance; 40. a housing; 50. sealing; 60. a wire; 100. a piezoelectric ceramic sheet;
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions according to the embodiments of the present utility model will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, an embodiment of the present utility model provides a piezoelectric ceramic sheet, including:
the first sheet body 10, the first sheet body 10 is in a ring body structure;
the second sheet 20, the second sheet 20 is a rotating body, the second sheet 20 is located at the inner side of the first sheet 10, the first sheet 10 and the second sheet 20 are concentrically arranged, a set interval 30 is arranged between the outer edge of the second sheet 20 and the inner edge of the first sheet 10, and the thicknesses of the first sheet 10 and the second sheet 20 are different, so that the first sheet 10 and the second sheet 20 can correspond to ultrasonic waves with different frequencies.
The piezoelectric ceramic sheet provided in this embodiment includes a first sheet body 10 and a second sheet body 20, where the first sheet body 10 is in a ring structure, and the second sheet body 20 is a rotating body, when the first sheet body 10 and the second sheet body 20 are assembled and installed, the second sheet body 20 is disposed at the inner side of the first sheet body 10, and since the first sheet body 10 and the second sheet body 20 have a set interval 30 therebetween so that the first sheet body 10 and the second sheet body 20 are separated from each other, and the thicknesses of the first sheet body 10 and the second sheet body 20 are different, the first sheet body 10 and the second sheet body 20 can correspond to ultrasonic waves with different frequencies during operation, specifically, at a transmitting end, the first sheet body 10 and the second sheet body 20 can be used to transmit ultrasonic waves with different frequencies, and at a receiving end, can correspond to the transmitting end to receive ultrasonic waves with different frequencies, when the ultrasonic water meter performs data acquisition, data acquisition can be performed based on the ultrasonic waves with two different frequencies, and based on two different data, and a single frequency is affected by different flow rates, thereby affecting the accuracy of the ultrasonic water meter, and thus the accuracy of the ultrasonic water meter can be improved
In a further implementation of this embodiment, the thickness of the second sheet 20 is smaller than the thickness of the first sheet 10.
The thickness of the second sheet 20 in this embodiment is smaller than that of the first sheet 10, which can prevent the interference of the ultrasonic waves generated by the second sheet 20 and the first sheet 10, so as to improve the accuracy of the ultrasonic water meter.
Referring to fig. 1, in a further implementation manner of the present embodiment, the first sheet body 10 is in a circular flat plate shape, and the second sheet body 20 is in a circular flat plate shape.
The first sheet body 10 and the second sheet body 20 in this embodiment are both flat plates, which can ensure that the ultrasonic waves emitted from the first sheet body 10 at the transmitting end can be received by the first sheet body 10 at the receiving end, and the ultrasonic waves emitted from the second sheet body 20 at the transmitting end can be received by the second sheet body 20 at the receiving end.
Referring to fig. 2, in a further embodiment of the present embodiment, the first sheet 10 is a spherical ring body, the second sheet 20 is a spherical sheet, and the concave directions of the curved surfaces of the first sheet 10 and the second sheet 20 are identical.
In this embodiment, the first sheet body 10 is a spherical ring body, the second sheet body 20 is a spherical sheet body, and the surface of the second sheet body is spherical, so that the ultrasonic waves emitted by the second sheet body can form focusing and cannot diverge, the transmission efficiency of the ultrasonic waves can be improved, and the strength of signals can be further improved.
In a further possible implementation of the present example, as shown in fig. 3, the radii of curvature of the first sheet 10 and the second sheet 20 are different.
In this embodiment, the radii of curvature of the first sheet body 10 and the second sheet body 20 are different, so that when the sounding surfaces of the first sheet body 10 and the second sheet body 20 are spherical, the ultrasonic wave emitted by the first sheet body 10 at the transmitting end can be received by the first sheet body 10 at the receiving end, and the ultrasonic wave emitted by the second sheet body 20 at the transmitting end can be received by the second sheet body 20 at the receiving end.
In a further implementation of this embodiment, the radius of curvature of the second sheet 20 is smaller than the radius of curvature of the first sheet 10.
In a further implementation of this embodiment, the thickness of the second sheet 20 is 1.2 to 2.8 times the thickness of the first sheet 10.
In practical use, when the thickness of the second sheet 20 is 1.2 to 2.8 times that of the first sheet 10, the interference of the two ultrasonic waves with different frequencies is further reduced.
In a further implementation of this embodiment, the thickness of the second sheet 20 is 2 times the thickness of the first sheet 10.
In the actual use process, the thickness of the second sheet 20 is 2 times that of the first sheet 10, and the effect that the ultrasonic waves with two different frequencies generated by the second sheet are not interfered is optimal.
In a further implementation of the present embodiment, the areas of the sound wave-generating surface or the sound wave-receiving surface of the first sheet body 10 and the second sheet body 20 are the same.
Referring to fig. 4, another aspect of the present embodiment provides an ultrasonic water meter transducer, which includes: as described above, the piezoelectric ceramic sheet 100 and the housing 40 are disposed inside the housing 40 by plastic packaging of the sealing compound 50, the piezoelectric ceramic sheet 100 is electrically connected to the ultrasonic generating component by the conductive wire 60, and the conductive wire 60 extends to the outside of the housing 40.
Specifically, the first sheet body 10 and the second sheet body 20 of the piezoelectric ceramic sheet 100 in this embodiment are connected to different ultrasonic generating components through different wires 60, so that they can generate ultrasonic waves of different frequencies.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A piezoelectric ceramic sheet, comprising:
the first sheet body is of a ring structure;
the second lamellar body, the second lamellar body is the rotator, the second lamellar body is located the inboard of first lamellar body, just first lamellar body with the second lamellar body sets up with one heart, the outward flange of second lamellar body with set for the interval between the inward flange of first lamellar body, thereby first lamellar body is different with the thickness of second lamellar body makes first lamellar body with the second lamellar body can correspond the ultrasonic wave of different frequency.
2. The piezoelectric ceramic sheet according to claim 1, wherein the thickness of the second sheet body is smaller than the thickness of the first sheet body.
3. The piezoelectric ceramic tile according to claim 1, wherein the first tile is in the shape of a circular flat plate and the second tile is in the shape of a circular flat plate.
4. The piezoelectric ceramic sheet according to claim 1, wherein the first sheet body is a spherical ring body, the second sheet body is a spherical sheet body, and the concave directions of the curved surfaces of the first sheet body and the second sheet body are identical.
5. The piezoelectric ceramic sheet according to claim 4, wherein the first sheet body and the second sheet body have different radii of curvature.
6. The piezoelectric ceramic patch according to claim 5, wherein a radius of curvature of said second patch is smaller than a radius of curvature of said first patch.
7. The piezoelectric ceramic sheet according to claim 2, wherein the thickness of the second sheet body is 1.2 to 2.8 times the thickness of the first sheet body.
8. The piezoelectric ceramic patch according to claim 1, wherein the thickness of said second sheet is 2 times the thickness of said first sheet.
9. The piezoelectric ceramic sheet according to claim 1, wherein the areas of the acoustic wave generating surface or the acoustic wave receiving surface of the first sheet body and the second sheet body are the same.
10. An ultrasonic water meter transducer, comprising: the piezoelectric ceramic sheet and the housing according to any one of claims 1 to 9, wherein the piezoelectric ceramic sheet is disposed inside the housing by molding, and the piezoelectric ceramic sheet is electrically connected to the ultrasonic generating component by a wire, and the wire extends to the outside of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320454844.8U CN220479324U (en) | 2023-03-12 | 2023-03-12 | Piezoelectric ceramic piece and ultrasonic water meter transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320454844.8U CN220479324U (en) | 2023-03-12 | 2023-03-12 | Piezoelectric ceramic piece and ultrasonic water meter transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220479324U true CN220479324U (en) | 2024-02-13 |
Family
ID=89827635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320454844.8U Active CN220479324U (en) | 2023-03-12 | 2023-03-12 | Piezoelectric ceramic piece and ultrasonic water meter transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220479324U (en) |
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2023
- 2023-03-12 CN CN202320454844.8U patent/CN220479324U/en active Active
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