CN210774346U - Low-frequency noise test analysis system - Google Patents
Low-frequency noise test analysis system Download PDFInfo
- Publication number
- CN210774346U CN210774346U CN201922042697.XU CN201922042697U CN210774346U CN 210774346 U CN210774346 U CN 210774346U CN 201922042697 U CN201922042697 U CN 201922042697U CN 210774346 U CN210774346 U CN 210774346U
- Authority
- CN
- China
- Prior art keywords
- sound measuring
- measuring tube
- sound
- noise
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a low frequency noise test analytic system. The device belongs to the technical field of searching of combined noise source transmission paths of multiple noise sources, can detect the combined noise source transmission path sent by the multiple noise sources, and comprises a shell and a laser lamp, wherein a data processing module and a controller are respectively arranged in the shell, a support is arranged on the upper surface of the shell, and a first universal rotating mechanism is arranged on the support; five sound measuring tubes are arranged on the first universal rotating mechanism, the five sound measuring tubes are equal in length, the diameters of tube holes are equal, and tube axes are parallel to each other; the front end surfaces of the five sound measuring tubes are also in the same vertical plane; and a noise sensor is respectively arranged in each sound measuring tube, the laser lamp is also arranged in the fifth sound measuring tube, and the central line of light emitted by the laser lamp and the central line of the fifth sound measuring tube are on the same straight line.
Description
Technical Field
The utility model relates to a many noise sources close noise source transmission path and look for technical field, concretely relates to low frequency noise test analytic system.
Background
In a workshop, a plurality of machine platforms emit noise at the same time, but sometimes an area S with low noise is needed outside and in the workshop, and the existing method generally adopts a method that the area needing low noise is made into a room with sound insulation by using sound insulation plates, so that the cost for building the sound insulation room is high, and the occupied space of the sound insulation plates for the sound insulation room is large. If a combined noise source transmission path of multiple noise sources is found, noise at the area S can be shielded in a large amount by installing a noise isolation sheet on the combined noise source transmission path of the multiple noise sources.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve and still not to detect the equipment that closes noise source transmission path of many noise sources now, provide a simple structure, convenient to use can detect out the low frequency noise test analytic system who closes noise source transmission path that many noise sources sent.
The technical problem is solved by the following technical scheme:
the low-frequency noise test analysis system comprises a shell and a laser lamp, wherein a data processing module and a controller are respectively arranged in the shell, a support is arranged on the upper surface of the shell, and a first universal rotating mechanism is arranged on the support;
five sound measuring tubes are arranged on the first universal rotating mechanism, the five sound measuring tubes are equal in length, the diameters of tube holes are equal, and tube axes are parallel to each other; the front end surfaces of the five sound measuring tubes are also in the same vertical plane; the first sound measuring tube of the five sound measuring tubes is arranged right above the fifth sound measuring tube, and the second sound measuring tube is arranged right below the fifth sound measuring tube; the third sound measuring tube is arranged right to the left of the fifth sound measuring tube, and the fourth sound measuring tube is arranged right to the fifth sound measuring tube; the first sound measuring tube and the second sound measuring tube are arranged in a left-right symmetrical mode relative to the fifth sound measuring tube, and the third sound measuring tube and the fourth sound measuring tube are also arranged in a left-right symmetrical mode relative to the fifth sound measuring tube;
a noise sensor is respectively arranged in the fifth sound measuring tube, the first sound measuring tube, the second sound measuring tube, the third sound measuring tube and the fourth sound measuring tube, the laser lamp is also arranged in the fifth sound measuring tube, and the central line of light emitted by the laser lamp and the tube center line of the fifth sound measuring tube are on the same straight line;
the control end of the first universal rotating mechanism, the control end of the laser lamp, the data processing module and each noise sensor are respectively connected with the controller.
In use, the system is first placed at the desired low noise region S according to the low frequency noise test analysis.
Then simultaneously starting the noise sensors in the first sound measuring pipe, the second sound measuring pipe, the third sound measuring pipe and the fourth sound measuring pipe, and uploading the noise information detected by each noise sensor at the same moment to the controller;
then the data processing module compares the noise intensity of the uploaded noise information, and if the noise intensity A1 detected by the noise sensor in the first sound tube is greater than or less than the noise intensity A2 detected by the noise sensor in the second sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the first sound tube is equal to the noise intensity detected by the noise sensor in the second sound tube; similarly, if the noise intensity A3 detected by the noise sensor in the third sound tube is greater than or less than the noise intensity a4 detected by the noise sensor in the fourth sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the third sound tube is equal to the noise intensity detected by the noise sensor in the fourth sound tube;
when A1= A2= A3= A4, stopping the rotation of the first universal rotating mechanism; then, a noise sensor in a fifth sound tube is started to detect the noise intensity A5, and the laser lamp is turned on at the same time, so that a section of path irradiated by light emitted by the laser lamp is a path which needs to be passed by the combined noise source of the multiple noise sources during transmission, and a combined noise source transmission path of the multiple noise sources is found.
After a combined noise source transmission path of multiple noise sources is found, noise in the area S can be largely shielded by providing a sound insulating board or a sound absorbing board on the combined noise source transmission path of the multiple noise sources. This scheme need not to separate into soundproof room with the acoustic celotex board with regional S department, has reduced the use of acoustic celotex board, has just also reduced the area of acoustic celotex board and has reduced the cost of sound insulation processing, simple structure, and convenient to use can detect out the combined noise sound source transmission path that many noise sources sent.
Preferably, a sound insulation plate is arranged at the right port of each sound measuring pipe, and a sound attenuation layer is further arranged on the inner pipe wall of each sound measuring pipe.
The noise elimination layer reduces the echo of noise in the sound measuring pipe, and the reliability is good.
And a wireless module connected with the controller is also arranged in the shell.
The wireless module can enable the low-frequency noise test analysis system to be wirelessly connected with an external computer or an intelligent terminal, and the low-frequency noise test analysis system is convenient to control and manage.
An analysis method according to a low-frequency noise test analysis system comprises a combined noise source transmission path searching method of multiple noise sources, and the implementation process of the combined noise source transmission path searching method of the multiple noise sources is as follows:
the analysis system according to the low frequency noise test is first placed at the desired low noise region S.
Then simultaneously starting the noise sensors in the first sound measuring pipe, the second sound measuring pipe, the third sound measuring pipe and the fourth sound measuring pipe, and uploading the noise information detected by each noise sensor at the same moment to the controller;
then the data processing module compares the noise intensity of the uploaded noise information, and if the noise intensity A1 detected by the noise sensor in the first sound tube is greater than or less than the noise intensity A2 detected by the noise sensor in the second sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the first sound tube is equal to the noise intensity detected by the noise sensor in the second sound tube; similarly, if the noise intensity A3 detected by the noise sensor in the third sound tube is greater than or less than the noise intensity a4 detected by the noise sensor in the fourth sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the third sound tube is equal to the noise intensity detected by the noise sensor in the fourth sound tube;
when A1= A2= A3= A4, stopping the rotation of the first universal rotating mechanism; then, a noise sensor in a fifth sound tube is started to detect the noise intensity A5, and the laser lamp is turned on at the same time, so that a section of path irradiated by light emitted by the laser lamp is a path which needs to be passed by the combined noise source of the multiple noise sources during transmission, and a combined noise source transmission path of the multiple noise sources is found.
The utility model discloses can reach following effect:
the utility model discloses need not to separate into the room that gives sound insulation with the acoustic celotex board with regional S department, reduced the use of acoustic celotex board, just also reduced the area of acoustic celotex board and reduced the cost that gives sound insulation and handle, simple structure, convenient to use can detect out the combined noise sound source transmission path that many noise sources sent.
Drawings
Fig. 1 is a schematic view of a connection structure of the present invention.
Fig. 2 is a schematic view of a cross-sectional connection structure of the fifth sound-measuring tube of the present invention.
Fig. 3 is the utility model discloses a service condition connection structure schematic diagram when not having set up the acoustic celotex board on the combined noise source transmission path of many noise sources.
Fig. 4 is a schematic view of the utility model of a use state connection structure when the multiple noise sources are provided with the acoustic celotex board on the combined noise source transmission path.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Example, a low frequency noise test analysis system, see fig. 1-4. The device comprises a shell 2 and a laser lamp 12, wherein a data processing module 3 and a controller 4 are respectively arranged in the shell, a support 1 is arranged on the upper surface of the shell, and a first universal rotating mechanism 8 is arranged on the support;
five sound measuring tubes are arranged on the first universal rotating mechanism, the five sound measuring tubes are equal in length, the diameters of tube holes are equal, and tube axes are parallel to each other; the front end surfaces of the five sound measuring tubes are also in the same vertical plane; a first sound measuring tube 13 of the five sound measuring tubes is arranged right above the fifth sound measuring tube 11, and a second sound measuring tube 7 is arranged right below the fifth sound measuring tube; the third sound measuring tube 15 is arranged right to the left of the fifth sound measuring tube, and the fourth sound measuring tube 10 is arranged right to the fifth sound measuring tube; the first sound measuring tube and the second sound measuring tube are arranged in a left-right symmetrical mode relative to the fifth sound measuring tube, and the third sound measuring tube and the fourth sound measuring tube are also arranged in a left-right symmetrical mode relative to the fifth sound measuring tube;
a noise sensor 17 is arranged in the fifth sound measuring pipe, a noise sensor 14 is arranged in the first sound measuring pipe, a noise sensor 6 is arranged in the second sound measuring pipe, a noise sensor 16 is arranged in the third sound measuring pipe, a noise sensor 9 is arranged in the fourth sound measuring pipe, the laser lamp is also arranged in the fifth sound measuring pipe, and the central line of light 18 emitted by the laser lamp and the pipe central line of the fifth sound measuring pipe are on the same straight line;
the control end of the first universal rotating mechanism, the wireless module, the control end of the laser lamp, the data processing module and each noise sensor are respectively connected with the controller.
The noise sensor in the fifth sound tube measures the noise level a5 of the combined noise source of the multiple noise sources.
A wireless module 5 connected with the controller is also arranged in the shell. And a wireless module connected with the controller is also arranged in the shell. The wireless module can enable the low-frequency noise test analysis system to be wirelessly connected with an external computer or an intelligent terminal, and the low-frequency noise test analysis system is convenient to control and manage.
The right port of each sound measuring pipe is provided with a sound insulation plate 22, and the inner pipe wall of each sound measuring pipe is also provided with a sound attenuation layer 23. The noise elimination layer reduces the echo of noise in the sound measuring pipe, and the reliability is good.
According to the analysis method of the low-frequency noise test analysis system, the analysis method comprises a combined noise source transmission path searching method of multiple noise sources, and the realization process of the combined noise source transmission path searching method of the multiple noise sources is as follows:
in use, the system is first placed at the desired low noise region S according to the low frequency noise test analysis.
Then simultaneously starting the noise sensors in the first sound measuring pipe, the second sound measuring pipe, the third sound measuring pipe and the fourth sound measuring pipe, and uploading the noise information detected by each noise sensor at the same moment to the controller;
then the data processing module compares the noise intensity of the uploaded noise information, and if the noise intensity A1 detected by the noise sensor in the first sound tube is greater than or less than the noise intensity A2 detected by the noise sensor in the second sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the first sound tube is equal to the noise intensity detected by the noise sensor in the second sound tube; similarly, if the noise intensity A3 detected by the noise sensor in the third sound tube is greater than or less than the noise intensity a4 detected by the noise sensor in the fourth sound tube, the controller controls the first universal rotating mechanism to rotate towards the right or the left until the noise intensity detected by the noise sensor in the third sound tube is equal to the noise intensity detected by the noise sensor in the fourth sound tube;
when A1= A2= A3= A4, stopping the rotation of the first universal rotating mechanism; then, a noise sensor in the fifth sound tube is started to detect the noise intensity A5, and the laser lamp is turned on at the same time, so that the path irradiated by the light 18 emitted by the laser lamp is the path 24 which needs to be passed by the combined noise source of the multiple noise sources 20 during transmission, and the combined noise source transmission path of the multiple noise sources is found. The paths 19 of the sub-noise sources 20 are combined to form a path 24 which needs to be passed when the combined noise source is transmitted.
When combined noise source transmission path 24 of multiple noise sources is found, noise in region S can be largely shielded by providing sound insulation sheet 21 or a sound insulation sheet on combined noise source transmission path 24 of multiple noise sources. The region S of the present embodiment is where the low frequency noise test analysis system is placed.
This embodiment need not to separate into the room that gives sound insulation with the acoustic celotex board with regional S department, has reduced the use of acoustic celotex board, has just also reduced the area of acoustic celotex board and has reduced the cost that gives sound insulation and handle, simple structure, convenient to use can detect out the combined noise sound source transmission path that many noise sources sent.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and those skilled in the art can make various changes or modifications within the scope of the appended claims.
Claims (3)
1. The low-frequency noise test analysis system is characterized by comprising a shell and a laser lamp, wherein a data processing module and a controller are respectively arranged in the shell;
five sound measuring tubes are arranged on the first universal rotating mechanism, the five sound measuring tubes are equal in length, the diameters of tube holes are equal, and tube axes are parallel to each other; the front end surfaces of the five sound measuring tubes are also in the same vertical plane; the first sound measuring tube of the five sound measuring tubes is arranged right above the fifth sound measuring tube, and the second sound measuring tube is arranged right below the fifth sound measuring tube; the third sound measuring tube is arranged right to the left of the fifth sound measuring tube, and the fourth sound measuring tube is arranged right to the fifth sound measuring tube; the first sound measuring tube and the second sound measuring tube are arranged in a left-right symmetrical mode relative to the fifth sound measuring tube, and the third sound measuring tube and the fourth sound measuring tube are also arranged in a left-right symmetrical mode relative to the fifth sound measuring tube;
a noise sensor is respectively arranged in the fifth sound measuring tube, the first sound measuring tube, the second sound measuring tube, the third sound measuring tube and the fourth sound measuring tube, the laser lamp is also arranged in the fifth sound measuring tube, and the central line of light emitted by the laser lamp and the tube center line of the fifth sound measuring tube are on the same straight line;
the control end of the first universal rotating mechanism, the control end of the laser lamp, the data processing module and each noise sensor are respectively connected with the controller.
2. The low frequency noise test analysis system of claim 1, wherein a sound insulation plate is disposed at the right port of each sound measuring tube, and a sound attenuation layer is further disposed on the inner tube wall of each sound measuring tube.
3. The system for testing and analyzing low-frequency noise according to claim 1, wherein a wireless module connected with the controller is further disposed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042697.XU CN210774346U (en) | 2019-11-21 | 2019-11-21 | Low-frequency noise test analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042697.XU CN210774346U (en) | 2019-11-21 | 2019-11-21 | Low-frequency noise test analysis system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774346U true CN210774346U (en) | 2020-06-16 |
Family
ID=71066667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922042697.XU Active CN210774346U (en) | 2019-11-21 | 2019-11-21 | Low-frequency noise test analysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210774346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779617A (en) * | 2019-11-21 | 2020-02-11 | 杭州汇测科技有限公司 | Low-frequency noise test analysis system and analysis method thereof |
-
2019
- 2019-11-21 CN CN201922042697.XU patent/CN210774346U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779617A (en) * | 2019-11-21 | 2020-02-11 | 杭州汇测科技有限公司 | Low-frequency noise test analysis system and analysis method thereof |
| CN110779617B (en) * | 2019-11-21 | 2023-10-17 | 杭州汇测科技有限公司 | Low-frequency noise test analysis system and analysis method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101308338B1 (en) | Systems and methods for controlling floor noises of apartment houses | |
| CN210774346U (en) | Low-frequency noise test analysis system | |
| CN107211012B (en) | Method and apparatus for proximity detection for device control | |
| CN102186134A (en) | Method and device for testing air leakage of microphone | |
| CN210774345U (en) | Multichannel strain analysis test system | |
| CN110779617A (en) | Low-frequency noise test analysis system and analysis method thereof | |
| CN109215332B (en) | Infrared remote controller testing device | |
| KR101556327B1 (en) | Apparatus and method for measuring sound insulation | |
| CN207586182U (en) | The passive sound fusion detection system of storage tank bottom plate distributed wireless master | |
| CN110806262B (en) | Multi-channel strain analysis test system and test method thereof | |
| JPH0453258B2 (en) | ||
| CN110779671B (en) | Monitoring system and monitoring method for service life test device of mechanical refrigerator | |
| CN205844140U (en) | A kind of Novel cloud end data storage sensor of dust concentration | |
| CN210741556U (en) | Automatic change environment measuring equipment | |
| CN210802810U (en) | Automatic detection device for leakage points of outer wall | |
| CN111751907A (en) | Detection method and system for acoustic logging instrument transmitting acoustic system probe | |
| CN220751534U (en) | On-line detection device for vehicle-mounted sound equipment | |
| CN103322950A (en) | Edge detection method and device based on ultrasonic waves | |
| CN211401266U (en) | Sensor test equipment | |
| CN220508231U (en) | Motor noise test bench | |
| CN216956738U (en) | Building energy consumption data monitoring controller | |
| CN214894550U (en) | Pressure detection control device for parallel multi-row pipes | |
| CN219914664U (en) | Temperature test box capable of being connected with battery pack in communication mode | |
| CN215181798U (en) | Real-name system channel data acquisition and transmission device | |
| CN212435289U (en) | Double-deck wall sound insulation threading structure that wears wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |