CN112770207A - Sound transmission device - Google Patents
Sound transmission device Download PDFInfo
- Publication number
- CN112770207A CN112770207A CN202011567756.6A CN202011567756A CN112770207A CN 112770207 A CN112770207 A CN 112770207A CN 202011567756 A CN202011567756 A CN 202011567756A CN 112770207 A CN112770207 A CN 112770207A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims description 9
- 239000007779 soft material Substances 0.000 claims description 3
- 241000463219 Epitheca Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a sound transmission device, which comprises a shell, a first sealing element and a sound pickup assembly, wherein the shell is provided with a first cavity, a second cavity and a sound pickup through hole, the first cavity and the second cavity are arranged at intervals, the sound pickup through hole is used for communicating the first cavity with the second cavity, the first cavity is a sealed cavity, and the second cavity is provided with an opening; the first sealing element is fixed on one side, close to the opening, of the shell and arranged around the opening, and when the sound transmission device is arranged on the electrical equipment to be tested, the first sealing element is used for being clamped between the sound transmission device and the electrical equipment to be tested so as to seal the second cavity; the pickup module is fixedly contained in the first cavity and used for detecting characteristic information conducted to the second cavity by the electrical equipment to be detected through the pickup through hole. The sound transmission device can accurately acquire the operation sound of a single device.
Description
Technical Field
The invention relates to the technical field of sound transmission devices, in particular to a sound transmission device.
Background
With the rapid development of economy, the power load is continuously increased, the number of power transmission and transformation projects is rapidly increased, a large number of power transmission and transformation facilities are continuously deepened into a central urban area, high-voltage and even ultrahigh-voltage power transmission lines enter densely populated areas, and part of the power transmission and transformation facilities are built in sensitive areas such as densely populated areas and kindergartens. The power grid needs to ensure the environmental friendliness of the power grid besides meeting the requirements of normal power load. The corona, heating and vibration generated by high voltage and large current of the electric power facility during operation cause the noise phenomena of corona noise, fan noise, vibration noise and other different sources, different causes and different characteristics of the electric power facility body or the heat dissipation system.
Noise generated by electric power facilities is not only noticed by people due to the influence on public living environment, but also indirectly reflected by the operation state of equipment. Therefore, how to determine the correlation between the noise of the adjacent region of the transformer substation and specific equipment in the transformer substation through monitoring the noise of the adjacent region of the power facility, especially the urban transformer substation, and sound pattern analysis, and grasp the typical characteristics and the essence source of the noise generated by the power facility, and realize the source determination and the qualification of the noise, thereby laying a foundation for the evaluation, the cognition and the governance of the noise. However, the premise of obtaining noise monitoring and voiceprint is to effectively collect the sound of single equipment operation so as to perform early analysis and modeling.
However, in the technical solution of the conventional technology, since both the noise of the external environment and the operation sound of the adjacent device interfere with the acquisition of the operation sound of the single device, the environmental noise cannot be eliminated, and the operation sound of the single device cannot be accurately acquired.
Disclosure of Invention
In view of this, it is necessary to provide a sound transmission device for solving the problem that the operating sound of a single device cannot be accurately obtained.
The present invention provides a sound transmission device, including:
the sound pickup device comprises a shell, a sound pickup device and a sound pickup device, wherein the shell is provided with a first cavity and a second cavity which are arranged at intervals, and a sound pickup through hole which is used for communicating the first cavity with the second cavity; wherein the first cavity is a sealed cavity and the second cavity has an opening;
the first sealing element is fixed on one side, close to the opening, of the shell and arranged around the opening, and when the sound transmission device is installed on the electrical equipment to be tested, the first sealing element is used for being clamped between the sound transmission device and the electrical equipment to be tested so as to seal the second cavity; and the number of the first and second groups,
the pickup assembly, pickup module is fixed accept in the first cavity, be used for through the pickup through-hole detects the electrical equipment that awaits measuring conducts extremely the characteristic information of second cavity.
In one embodiment, the first sealing member is made of a soft material.
In one embodiment, the sound transmission device further includes:
the magnetic fixing piece is fixed on the shell and used for detachably adsorbing the shell to the electrical equipment to be tested, and when the sound transmission device is installed on the electrical equipment to be tested, the first sealing piece is pressed to the electrical equipment to be tested.
In one embodiment, the housing comprises:
an upper shell; and the number of the first and second groups,
the inferior valve, the inferior valve with the epitheca forms sealed fixed in order to enclose first cavity, the inferior valve is kept away from the sunken formation in one side of first cavity the second cavity, the pickup through-hole runs through the inferior valve sets up, first sealing member with the magnetism mounting is fixed in respectively the inferior valve.
In one embodiment, the lower shell comprises a support plate arranged at an interval with the upper shell, a first extension wall formed by bending and extending the support plate towards the direction close to the support plate, and a second extension wall formed by bending and extending the support plate towards the direction far away from the support plate; the upper shell is arranged on the first extending wall, so that the supporting plate, the first extending wall and the upper shell jointly enclose a first cavity; the supporting plate and the second extending wall jointly enclose the second cavity, and the pickup through hole penetrates through the supporting plate; the first sealing element is fixed at one end, close to the opening, of the second extension wall, and the magnetic fixing element is fixed at the second extension wall.
In one embodiment, the second extending wall comprises a first section formed by bending and extending the support plate in a direction away from the upper shell and a second section formed by protruding and extending the first section away from the outer periphery of the upper shell; the first section and the supporting plate enclose the second cavity together, and the magnetic fixing piece is fixed on the second section.
In one embodiment, the magnetic fixing member includes a fixing magnet embedded and fixed in the second segment and a magnet pressing ring adsorbed and fixed at one end of the second segment away from the opening. In one embodiment, the housing further comprises:
and the second sealing element is clamped and fixed between the upper shell and the lower shell so as to seal the first cavity.
In one embodiment, the pickup assembly includes:
the sound sensor is accommodated in the first cavity and covers the pickup through hole; and the number of the first and second groups,
and the control component is connected with the sound sensor and used for controlling the sound sensor to detect the characteristic information of the electrical equipment to be detected.
In one embodiment, the pickup assembly further includes:
the soft supporting piece is fixedly supported on the shell; the sound sensor is fixedly supported on the flexible supporting piece and is arranged at intervals with the shell.
The sound transmission device is characterized in that a first sealing piece is fixed on one side, close to the opening, of the shell and arranged around the opening, when the sound transmission device is arranged on the electrical equipment to be tested, the first sealing piece is used for being clamped between the sound transmission device and the electrical equipment to be tested so as to seal the second cavity, the pickup module is fixedly accommodated in the first cavity and used for detecting characteristic information transmitted to the second cavity by the electrical equipment to be tested through the pickup through hole, wherein the first cavity and the second cavity are both sealed cavities, a pickup environment which is isolated from the outside and is relatively sealed is created for the pickup module, the noise of the outside environment and the influence of the running sound of adjacent equipment on the pickup work of the pickup module are effectively avoided, and the running sound of the electrical equipment to be tested during running can be accurately obtained; moreover, due to the arrangement of the first sealing element, the phenomenon that collision noise is generated between the shell and the electrical equipment to be tested due to contact collision is avoided, and the pickup accuracy of the pickup module is effectively guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a sound transmission device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 1 is a schematic structural diagram illustrating a sound transmission device according to an embodiment of the present invention, and a sound transmission device 100 according to an embodiment of the present invention includes a housing 1, a first sealing member 2, and a sound pickup assembly 3.
The shell 1 is provided with a first cavity 101 and a second cavity 102 which are arranged at intervals, and a sound pickup through hole 103 which is used for communicating the first cavity 101 with the second cavity 102; the first cavity 101 is a sealed cavity, and the second cavity 102 has an opening 104, i.e. the second cavity 102 is a substantially semi-sealed cavity.
It should be noted that the specific structural form of the housing is not limited, and may be an integral structure or a split structure, and the specific structural form of the housing may be specifically selected according to the actual use requirement, for example, in the present embodiment, the housing 1 is a split structure, and further, the housing 1 includes an upper shell 11 and a lower shell 12.
The lower shell 12 and the upper shell 11 form a sealing fixation therebetween to jointly enclose the first cavity 101; the side of the lower shell 12 away from the first cavity 101 is recessed to form the second cavity 102, and the opening 104 is located on the side away from the second cavity 102; the sound pickup through hole 103 is provided through the lower case 102.
Further, the specific structural form of the lower shell is not limited, for example, in one embodiment, the lower shell 12 includes a supporting plate 121 disposed at a distance from the upper shell 11, a first extending wall 122 formed by bending and extending the supporting plate 121 in a direction close to the supporting plate 121, and a second extending wall 123 formed by bending and extending the supporting plate 121 in a direction away from the supporting plate 121.
The upper shell 11 is covered on the first extending wall 122, so that the supporting plate 121, the first extending wall 122 and the upper shell 11 together enclose the first cavity 101; the supporting plate 121 and the second extending wall 123 jointly enclose the second cavity 102, and the sound pickup through hole 103 is disposed through the supporting plate 121.
The first sealing element 2 is fixed to the side of the housing 11 close to the opening 104 and arranged around the opening 104, and specifically, the first sealing element 2 is fixed to one end of the second extending wall 123 of the lower shell 12 close to the opening 104; when the sound transmission device 100 is installed in the electrical device 200 to be tested, the first sealing member 2 is used to be clamped between the sound transmission device 100 and the electrical device 200 to be tested, so that the second cavity 102 is isolated from the outside air, and the second cavity 102 is sealed.
It should be noted that the first sealing element 2 is made of a soft material, which includes but is not limited to rubber, plastic, etc., for example, in the present embodiment, the first sealing element 2 is EVA (Ethylene Vinyl Acetate Copolymer, chinese) plastic, and since EVA plastic has certain elasticity, when the sound transmission device 100 is installed in the electrical apparatus 200 to be tested, the first sealing element 2 is squeezed and elastically deformed, so that the first sealing element 2 is tightly attached to the outer side wall of the electrical apparatus 200 to be tested, so that the second cavity 102 is isolated from the outside air, thereby preventing moisture carried by the air and external noise from entering into the second cavity 102.
Specifically, the pickup assembly 3 includes a sound sensor 31 and a control assembly 32, wherein:
the sound sensor 31 is accommodated in the first cavity 101 and covers the sound pickup through hole 103; it is worth mentioning that the sound sensor 31 includes, but is not limited to, a MEMS (Micro-Electro-Mechanical System, chinese) sound-electricity conversion device for converting a sound signal into an electrical signal.
The control component 32 is connected to the sound sensor 31, and is configured to control the sound sensor 31 to detect characteristic information of the electrical device 200 to be tested.
Specifically, the control assembly 32 includes a control circuit 321 and a connection plug 322, where the connection plug 322 is fixed to the upper shell 11 of the housing 1, at least partially exposed out of the first cavity 101, and is used for connecting with an external device to receive an electrical signal; the control circuit 321 is fixedly accommodated in the first sealing cavity 101, and the control circuit 321 is respectively connected with the connection plug 322 and the sound sensor 31, and is configured to control the sound sensor 32 to detect the characteristic information of the electrical device to be detected according to the electrical signal sent by the connection plug 321.
In the above structure, since the first cavity 101 and the second cavity 102 are both sealed cavities, a sound pickup environment isolated from the outside and relatively sealed is created for the sound sensor 31 of the sound pickup module 3, so that the influence of noise of the outside environment and running sound of adjacent equipment on the sound pickup operation of the sound sensor 31 is effectively avoided, and the running sound of the electrical equipment to be tested during running can be accurately obtained; moreover, due to the arrangement of the first sealing member 2, the phenomenon that collision noise is generated between the shell 1 and the electrical equipment 200 to be tested due to contact collision is avoided, and the accuracy of sound pickup of the sound sensor 31 is effectively ensured.
In one embodiment, the pickup assembly 3 further includes a soft support 33 fixedly supported on the housing 1; specifically, the flexible supporting member 33 is fixed to the supporting plate 121, and the sound sensor 31 is fixed to the flexible supporting member 33 and spaced apart from the housing 1.
It should be noted that the flexible supporting member 33 is made of a flexible material, which includes but is not limited to rubber, plastic, etc., for example, in the present embodiment, the flexible supporting member 33 is EVA plastic,
the sound sensor 31 vibrates when picking up sound, and passes through soft support piece 33 supports sound sensor 31, because the EVA plastics have certain elasticity, can avoid because sound sensor 31 when vibrating with casing 1 collision and produce the collision noise, further improved sound sensor 31 picks up the accuracy of the characteristic information of electrical equipment 200 that awaits measuring.
In one embodiment, the acoustic transmission device 100 further comprises a magnetic mount 5, wherein:
the magnetic fixing member 5 is fixed to the lower shell 12 of the housing 1, and is configured to detachably attach the housing 1 to the electrical device 200 to be tested, and when the sound transmission device 100 is installed in the electrical device 200 to be tested, the magnetic fixing member 5 presses the lower shell 12 to the electrical device 200 to be tested under the mutual attraction effect of magnetic force, so as to press the first sealing member 2 to the electrical device 200 to be tested, thereby sealing the second cavity 102.
In practical application, the sound transmission device 100 and the electrical equipment 200 to be tested are detachably connected in an adsorption mode, so that the sound transmission device 100 and the electrical equipment 200 to be tested are more convenient to install and detach, the first sealing element 2 is better sealed, the sealing performance of the second cavity 102 is further improved, and the accuracy and the reliability of the sound sensor 31 for picking up the characteristic information of the electrical equipment 200 to be tested are improved.
In one embodiment, the magnetic fixing member 5 is fixed to the second extending wall 123, further, the second extending wall 123 includes a first section 1231 formed by bending and extending the supporting plate 121 in a direction away from the upper shell 11 and a second section 1232 formed by protruding and extending the first section 1231 away from the outer periphery of the upper shell 11, the magnetic fixing member 5 includes a fixing magnet 51 embedded and fixed to the second section 1232 and a magnet pressing ring 52 attached and fixed to one end of the second section 1232 away from the opening 104; work as pass the acoustic device 100 adsorb in during the electrical equipment 200 that awaits measuring, through fixed magnet 51 with the cooperation setting of magnet clamping ring 52 makes pass the acoustic device 100 with the magnetic attraction between the electrical equipment 200 that awaits measuring is stronger, makes pass the acoustic device 100 with it is more firm to await measuring the absorption between the electrical equipment 200, avoids in the use more effectively pass the acoustic device 100 follow the electrical equipment 200 that awaits measuring drops, guarantees better the leakproofness of second seal chamber 102, makes sound sensor 31 picks up the accuracy, the reliability of the characteristic information of electrical equipment 200 that awaits measuring are higher.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A sound transmission device, comprising:
the sound pickup device comprises a shell, a sound pickup device and a sound pickup device, wherein the shell is provided with a first cavity and a second cavity which are arranged at intervals, and a sound pickup through hole which is used for communicating the first cavity with the second cavity; wherein the first cavity is a sealed cavity and the second cavity has an opening;
the first sealing element is fixed on one side, close to the opening, of the shell and arranged around the opening, and when the sound transmission device is installed on the electrical equipment to be tested, the first sealing element is used for being clamped between the sound transmission device and the electrical equipment to be tested so as to seal the second cavity; and the number of the first and second groups,
the pickup assembly, pickup module is fixed accept in the first cavity, be used for through the pickup through-hole detects the electrical equipment that awaits measuring conducts extremely the characteristic information of second cavity.
2. The acoustic transmission apparatus of claim 1, wherein the first seal is made of a soft material.
3. The sound transmission device according to claim 1, characterized by further comprising:
the magnetic fixing piece is fixed on the shell and used for detachably adsorbing the shell to the electrical equipment to be tested, and when the sound transmission device is installed on the electrical equipment to be tested, the first sealing piece is pressed to the electrical equipment to be tested.
4. The sound transmission device according to claim 3, wherein the housing comprises:
an upper shell; and the number of the first and second groups,
the inferior valve, the inferior valve with the epitheca forms sealed fixed in order to enclose first cavity, the inferior valve is kept away from the sunken formation in one side of first cavity the second cavity, the pickup through-hole runs through the inferior valve sets up, first sealing member with the magnetism mounting is fixed in respectively the inferior valve.
5. The sound transmission device according to claim 4, wherein the lower case includes a support plate disposed at an interval from the upper case, a first extension wall formed by bending and extending the support plate in a direction close to the support plate, and a second extension wall formed by bending and extending the support plate in a direction away from the support plate; the upper shell is arranged on the first extending wall, so that the supporting plate, the first extending wall and the upper shell jointly enclose a first cavity; the supporting plate and the second extending wall jointly enclose the second cavity, and the pickup through hole penetrates through the supporting plate; the first sealing element is fixed at one end, close to the opening, of the second extension wall, and the magnetic fixing element is fixed at the second extension wall.
6. The sound transmission device according to claim 5, wherein the second extension wall includes a first section formed by bending and extending the support plate in a direction away from the upper case, and a second section formed by protruding and extending the first section away from an outer peripheral edge of the upper case; the first section and the supporting plate enclose the second cavity together, and the magnetic fixing piece is fixed on the second section.
7. The sound transmission device according to claim 6, wherein the magnetic fixing member includes a fixing magnet embedded and fixed in the second segment and a magnet pressing ring that is fixed by adsorption to an end of the second segment away from the opening.
8. The sound transmission device of claim 4, wherein the housing further comprises:
and the second sealing element is clamped and fixed between the upper shell and the lower shell so as to seal the first cavity.
9. The sound transmission device of claim 1, wherein the pickup assembly comprises:
the sound sensor is accommodated in the first cavity and covers the pickup through hole; and the number of the first and second groups,
and the control component is connected with the sound sensor and used for controlling the sound sensor to detect the characteristic information of the electrical equipment to be detected.
10. The sound transmission device of claim 9, wherein the pickup assembly further comprises:
the soft supporting piece is fixedly supported on the shell; the sound sensor is fixedly supported on the soft supporting piece and is provided with characteristic information at intervals with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567756.6A CN112770207A (en) | 2020-12-25 | 2020-12-25 | Sound transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567756.6A CN112770207A (en) | 2020-12-25 | 2020-12-25 | Sound transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN112770207A true CN112770207A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011567756.6A Pending CN112770207A (en) | 2020-12-25 | 2020-12-25 | Sound transmission device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206611578U (en) * | 2017-04-20 | 2017-11-03 | 智感云端科技股份有限公司 | Sound collecting is popped one's head in |
| CN110300343A (en) * | 2019-04-30 | 2019-10-01 | 深圳市湾区通信技术有限公司 | A kind of outdoor pick up facility |
| CN110376288A (en) * | 2019-08-16 | 2019-10-25 | 马黎明 | A kind of novel sound insulation cover soundproof effect detection device |
| CN110856064A (en) * | 2019-11-27 | 2020-02-28 | 内蒙古农业大学 | Livestock feeding sound signal acquisition device and acquisition method using same |
| CN210447058U (en) * | 2019-06-13 | 2020-05-05 | 佛山市核德隆电子有限公司 | Digital physiological sound collector |
| CN111351568A (en) * | 2020-04-20 | 2020-06-30 | 深圳中雅机电实业有限公司 | Measurer for measuring sound transmission quantity of air pipe |
| CN211121610U (en) * | 2019-12-05 | 2020-07-28 | 惠州市德赛西威汽车电子股份有限公司 | Device for testing abnormal sound of automobile parts |
-
2020
- 2020-12-25 CN CN202011567756.6A patent/CN112770207A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206611578U (en) * | 2017-04-20 | 2017-11-03 | 智感云端科技股份有限公司 | Sound collecting is popped one's head in |
| CN110300343A (en) * | 2019-04-30 | 2019-10-01 | 深圳市湾区通信技术有限公司 | A kind of outdoor pick up facility |
| CN210447058U (en) * | 2019-06-13 | 2020-05-05 | 佛山市核德隆电子有限公司 | Digital physiological sound collector |
| CN110376288A (en) * | 2019-08-16 | 2019-10-25 | 马黎明 | A kind of novel sound insulation cover soundproof effect detection device |
| CN110856064A (en) * | 2019-11-27 | 2020-02-28 | 内蒙古农业大学 | Livestock feeding sound signal acquisition device and acquisition method using same |
| CN211121610U (en) * | 2019-12-05 | 2020-07-28 | 惠州市德赛西威汽车电子股份有限公司 | Device for testing abnormal sound of automobile parts |
| CN111351568A (en) * | 2020-04-20 | 2020-06-30 | 深圳中雅机电实业有限公司 | Measurer for measuring sound transmission quantity of air pipe |
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Application publication date: 20210507 |