CN213120813U - Novel calibration system for acoustic power meter - Google Patents
Novel calibration system for acoustic power meter Download PDFInfo
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- CN213120813U CN213120813U CN202021477217.9U CN202021477217U CN213120813U CN 213120813 U CN213120813 U CN 213120813U CN 202021477217 U CN202021477217 U CN 202021477217U CN 213120813 U CN213120813 U CN 213120813U
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- acoustic power
- calibration system
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Abstract
The utility model relates to a technical field of calbiration system, more specifically relates to novel acoustic power meter calbiration system. The novel calibration system for the acoustic power meter comprises a precision balance, a three-axis movement device, a balance beam, a laser and an absorption target; the three-axis movement device is arranged on a balance beam, the precision balance is arranged on the three-axis movement device, the absorption target is arranged at the lower part of the balance beam, the laser is arranged at the lower part of the three-axis movement device, and a laser beam emitted by the laser corresponds to the center of the absorption target; the novel calibration system for the acoustic power meter further comprises a hanging mechanism, and the side part of the absorption target is connected with the precision balance through the hanging mechanism. The utility model adds the transducer and the absorption target center alignment auxiliary device, which is more convenient for the accurate alignment between the transducer and the absorption target, thereby leading the measuring result to be more accurate; a three-axis movement device is designed below the precision balance, so that the absorption target position can be finely adjusted more accurately, and inconvenience caused by manual adjustment is avoided.
Description
Technical Field
The utility model relates to a technical field of calbiration system, more specifically relates to novel acoustic power meter calbiration system.
Background
When the existing acoustic power meter is used for leveling an absorption target, the existing acoustic power meter can only be used in a visual inspection mode, and large errors easily exist; when the existing system is suitable for the condition that the transducer emits ultrasound from bottom to top, the utilized absorption target is easy to drift and unstable, and large deviation is easily caused to a measurement result; meanwhile, the water tank which is provided with the existing system and is suitable for the condition that the transducer emits ultrasound from top to bottom mainly adopts a hollowing mode, and cannot be widely suitable for the conditions of different ultrasonic transducers; in the actual measurement process, in order to make the measurement result as accurate as possible, the absorption target and the transducer need to be coaxial as much as possible, but for the current system, the evaluation can be carried out only by means of visual inspection, which can introduce great errors; and in order to protect the absorption target and make the measurement result more accurate, the distance between the absorption target and the transducer needs to be about 0.7f (f is the focal length), and the current system can only estimate the distance by means of visual observation, and some errors exist. In summary, the existing radiation force balance system has many problems, and cannot be well and widely applied to different practical situations.
For example, chinese patent CN2015202428150 discloses an acoustic power measuring device for an underwater acoustic focusing transducer, which causes a large deviation to the measurement result.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem to a certain extent at least, provide novel acoustic power meter calbiration system, its regulation to the absorption target position is more accurate.
The technical scheme of the utility model is that: the novel calibration system for the acoustic power meter comprises a precision balance, a three-axis movement device, a balance beam, a laser and an absorption target;
the three-axis movement device is arranged on a balance beam, the precision balance is arranged on the three-axis movement device, the absorption target is arranged at the lower part of the balance beam, the laser is arranged at the lower part of the three-axis movement device, and a laser beam emitted by the laser corresponds to the center of the absorption target;
the novel calibration system for the acoustic power meter further comprises a hanging mechanism, and the side part of the absorption target is connected with the precision balance through the hanging mechanism.
Furthermore, the hoisting mechanism comprises an upper precision balance support and a fine wire, the upper precision balance support is arranged on the precision balance, one end of the fine wire is connected with the upper precision balance support, and the other end of the fine wire is connected with the side part of the absorption target.
Furthermore, the precision balance upper bracket extends outwards along the upper surface of the precision balance to form four branch parts, each branch part is connected with a thin line, and the number of the thin lines is four.
Furthermore, the number of the balance beams is two, and the laser is arranged at the lower part of the triaxial movement device and is positioned in a space between the two balance beams.
Furthermore, a beam supporting plate is further arranged between the three-axis movement device and the balance beam, the beam supporting plate is arranged on the balance beam, and the three-axis movement device is arranged on the beam supporting plate.
Furthermore, the bottom of the beam supporting plate is also provided with a supporting plate positioning piece which is positioned in the space between the two balance beams.
Furthermore, the supporting plate positioning piece is connected with the transducer fixing vertical rod, a connecting portion is arranged at the bottom of the transducer fixing vertical rod and connected to the ultrasonic transducer.
Furthermore, the axis of the transducer fixing vertical rod is parallel to the laser beam emitted by the laser.
Furthermore, the middle part of the connecting part is of a rotating structure.
Further, the three-axis movement device is a manual or electric movement device.
Compared with the prior art, the beneficial effects are: the utility model adds the transducer and the absorption target center alignment auxiliary device, which is more convenient for the accurate alignment between the transducer and the absorption target, thereby leading the measuring result to be more accurate; a three-axis movement device is designed below the precision balance, so that the absorption target position can be finely adjusted more accurately, and inconvenience caused by manual adjustment is avoided.
Drawings
FIG. 1 is a first perspective view of a transducer under an absorptive target according to an embodiment.
FIG. 2 is a second perspective view of a transducer under an absorptive target according to an embodiment.
FIG. 3 is a schematic perspective view of a transducer of the second embodiment above an absorption target.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Example one
In the present embodiment, as shown in fig. 1 and 2, the transducer is below the absorption target 7, and it should be noted that the transducer is not shown in the drawings.
The novel calibration system for the acoustic power meter comprises a precision balance 1, a three-axis movement device 2, a balance beam 3, a laser 4 and an absorption target 7;
the three-axis movement device 2 is arranged on the balance beam 3, the precision balance 1 is arranged on the three-axis movement device 2, the absorption target 7 is arranged at the lower part of the balance beam 3, the laser 4 is arranged at the lower part of the three-axis movement device 2, and the laser beam emitted by the laser 4 corresponds to the center of the absorption target 7;
the novel calibration system for the acoustic power meter further comprises a hanging mechanism, and the side part of the absorption target 7 is connected with the precision balance 1 through the hanging mechanism.
In this embodiment, a laser 4 is designed on the balance beam 3 on which the precision balance 1 is placed, and for the case where the transducer is located below the absorption target 7, the center of the transducer is adjusted to be located on the laser beam emitted by the laser 4, and then the position of the absorption target 7 is adjusted so that the center thereof is also located on the laser beam emitted by the laser 4, thereby ensuring that the transducer is aligned with the center of the absorption target 7.
And the three-axis movement device 2 is designed below the precision balance 1, and the position of the precision balance 1 can be manually adjusted through a knob, so that the position of the suspended absorption target 7 can be flexibly adjusted.
Further, the hanging mechanism comprises a precision balance upper support 100 and a fine wire 200, wherein the precision balance upper support 100 is arranged on the precision balance 1, one end of the fine wire 200 is connected with the precision balance upper support 100, and the other end of the fine wire 200 is connected with the side part of the absorption target 7. The precision balance upper frame 100 is provided with four bifurcated portions extending outward along the upper surface of the precision balance 1, each bifurcated portion is connected with one thin wire 200, and the number of the thin wires 200 is four.
In this embodiment, the measurement result is more accurate through the cooperation of the above structures.
Furthermore, the number of the balance beams 3 is two, and the laser 4 is arranged at the lower part of the triaxial movement device 2 and is positioned in the space between the two balance beams 3. In this embodiment, the number of balance beams 3 is two, which can better support the three-axis movement device 2, and also provides a space for installing the laser 4.
Further, a beam support plate 300 is further arranged between the three-axis movement device 2 and the balance beam 3, the beam support plate 300 is arranged on the balance beam 3, and the three-axis movement device 2 is arranged on the beam support plate 300. The bottom of the beam support plate 300 is also provided with a support plate positioning element 400, the support plate positioning element 400 being located in the space between the two balance beams 3. In this embodiment, the three-axis exercise device 2 can be better supported by the beam support plate 300.
Furthermore, the three-axis movement device 2 is a manual or electric movement device, the manual mode is simple, fast and convenient to operate, and the electric mode can reduce labor force and is accurate in adjustment. The three-axis movement device 2 can be manual or electric.
In this embodiment, the precision balance 1 is leveled, peeled, and zeroed, the absorption targets 7 are respectively suspended below the precision balance 1 by the thin wires 200, and the centers of the absorption targets 7 are positioned on the laser beam generated by the laser 4 by adjusting the positions of the absorption targets 7 by the three-axis movement device 2, thereby ensuring that the centers of the absorption targets 7 and the transducer are aligned.
Example two
As shown in fig. 3, in the present embodiment, the transducer 8 is above the absorption target 7, the supporting plate positioning element is connected to the transducer fixing vertical rod 13, the bottom of the transducer fixing vertical rod 13 is provided with a connecting portion 130, and the connecting portion 130 is connected to the ultrasonic transducer 8.
The axis of the transducer fixing vertical rod 13 is parallel to the laser beam emitted by the laser, and the middle part of the connecting part 130 is of a rotating structure.
The ultrasonic transducer 8 can be stably connected to the lower part of the beam support plate 300 by matching the transducer fixing vertical rod 13 and the connecting part 130, and the connection mode is simple and quick.
In this embodiment, for the case where the ultrasonic transducer 8 is located above the absorption target 7, the position of the absorption target 7 is adjusted so that the center of the absorption target 7 is located on the laser beam generated by the laser, and then the position of the ultrasonic transducer 8 is adjusted so that the center of the ultrasonic transducer 8 is also located on the laser beam generated by the laser, thereby ensuring that the ultrasonic transducer 8 is aligned with the center of the absorption target 7.
Specifically, the absorption targets 7 are respectively suspended below the precision balance 1 by using the thin wires 200, and the centers of the absorption targets 7 and the ultrasonic transducer 8 are ensured to be in an aligned state by adjusting the positions of the absorption targets 7 by using the three-axis movement device 2 so that the centers are positioned on the laser beam generated by the laser.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The novel calibration system of the acoustic power meter is characterized by comprising a precision balance (1), a three-axis movement device (2), a balance beam (3), a laser (4) and an absorption target (7);
the three-axis movement device (2) is arranged on the balance beam (3), the precision balance (1) is arranged on the three-axis movement device (2), the absorption target (7) is arranged at the lower part of the balance beam (3), the laser (4) is arranged at the lower part of the three-axis movement device (2), and a laser beam emitted by the laser (4) corresponds to the center of the absorption target (7);
the novel calibration system for the acoustic power meter further comprises a hanging mechanism, and the side part of the absorption target (7) is connected with the precision balance (1) through the hanging mechanism.
2. The novel acoustic power meter calibration system of claim 1, wherein: the hoisting mechanism comprises a precision balance upper support (100) and a fine wire (200), the precision balance upper support (100) is arranged on the precision balance (1), one end of the fine wire (200) is connected with the precision balance upper support (100), and the other end of the fine wire is connected with the side part of the absorption target (7).
3. The novel acoustic power meter calibration system of claim 2, wherein: the precision balance upper bracket (100) extends outwards along the upper surface of the precision balance (1) and is provided with four branch parts, each branch part is connected with one thin line (200), and the number of the thin lines (200) is four.
4. The novel acoustic power meter calibration system of claim 3, wherein: balance crossbeam (3) quantity be two, laser instrument (4) locate triaxial telecontrol equipment (2) lower part and be located the space between two balance crossbeams (3).
5. The novel acoustic power meter calibration system of claim 4, wherein: the balance is characterized in that a beam support plate (300) is further arranged between the triaxial moving device (2) and the balance beam (3), the beam support plate (300) is arranged on the balance beam (3), and the triaxial moving device (2) is arranged on the beam support plate (300).
6. The novel acoustic power meter calibration system of claim 5, wherein: the bottom of the beam supporting plate (300) is also provided with a supporting plate positioning piece (400), and the supporting plate positioning piece (400) is positioned in the space between the two balance beams (3).
7. The novel acoustic power meter calibration system of claim 6, wherein: the supporting plate positioning piece (400) is connected with the transducer fixing vertical rod (13), a connecting portion (130) is arranged at the bottom of the transducer fixing vertical rod (13), and the connecting portion (130) is connected to the ultrasonic transducer (8).
8. The novel acoustic power meter calibration system of claim 7, wherein: the axis of the transducer fixing vertical rod (13) is parallel to the laser beam emitted by the laser (4).
9. The novel acoustic power meter calibration system of claim 8, wherein: the middle part of the connecting part (130) is of a rotating structure.
10. The novel acoustic power meter calibration system according to any one of claims 1 to 9, wherein: the three-axis movement device (2) is a manual or electric movement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021477217.9U CN213120813U (en) | 2020-07-23 | 2020-07-23 | Novel calibration system for acoustic power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021477217.9U CN213120813U (en) | 2020-07-23 | 2020-07-23 | Novel calibration system for acoustic power meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213120813U true CN213120813U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021477217.9U Active CN213120813U (en) | 2020-07-23 | 2020-07-23 | Novel calibration system for acoustic power meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213120813U (en) |
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2020
- 2020-07-23 CN CN202021477217.9U patent/CN213120813U/en active Active
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