CN108827456A - A kind of method and system of test equipment noise - Google Patents
A kind of method and system of test equipment noise Download PDFInfo
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- CN108827456A CN108827456A CN201810390478.8A CN201810390478A CN108827456A CN 108827456 A CN108827456 A CN 108827456A CN 201810390478 A CN201810390478 A CN 201810390478A CN 108827456 A CN108827456 A CN 108827456A
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
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Abstract
The invention discloses a kind of method and system of test equipment noise, method includes：The background noise of test site is tested, background noise value is obtained；Noise of the test target equipment when the test site is run obtains operation level of noise；The operation level of noise is modified according to the background noise value and auxiliary parameter, obtains the noise true value of the target device, the auxiliary parameter includes climate parameter.For the present invention by having carried out the amendments of the influences such as background noise and climatic factor on target device, the level of noise made is truer, ensure that the accuracy of test, is more in line with the actual noise value of target device.
Description
Technical field
The present invention relates to noise test technical fields, in particular to a kind of method and system of test equipment noise.
Background technique
Various types of equipment, due to the effect of a variety of out-of-balance forces, either large or small federation generates noise, and passes through noise
Value be compared with the standard level of noise of equipment, the operating status of equipment can be assessed on a macro scale, determine equipment be
It is no to be abnormal.
Currently, simple method for testing bacterial resistance is generallyd use, in the progress all around of equipment when carrying out noise test to equipment
Noise test directly obtains the noise test value of equipment, but the noise of equipment at runtime will receive background noise and various
The influence of climatic factor can not provide true level of noise of equipment under the influence of environment, the standard of test in the prior art
Exactness is not high enough, to influence the true assessment result to equipment noise, how to be accurately obtained true noise when equipment operation,
As current problem to be solved.
Summary of the invention
A kind of method and system for being designed to provide test equipment noise of the application, can obtain more accurately
To the true level of noise of equipment.
The application provides a kind of method of test equipment noise, including：
The background noise of test site is tested, background noise value is obtained；
Noise of the test target equipment when the test site is run obtains operation level of noise；
The operation level of noise is modified according to the background noise value and auxiliary parameter, the target is obtained and sets
Standby noise true value, the auxiliary parameter include climate parameter.According to background noise value and auxiliary parameter to operation noise
After value amendment, the noise true value of target device can be obtained more accurately, avoids influence of the external factor to level of noise.
Optionally, after the acquisition runs level of noise and described according to the background noise value and auxiliary parameter
Before being modified to the operation level of noise, the method also includes：
Determine that the background noise value and the difference of the operation level of noise are less than first threshold.When background noise value and institute
When stating the difference of operation level of noise less than first threshold, need to carry out background noise amendment to operation level of noise, it is revised to make an uproar
Value is more nearly the actual value of target device.
Optionally, the climate parameter includes at least one in atmospheric pressure value, temperature value and humidity value.In target device
In operational process, the influence of climatic factor will receive, to influence the test value of noise, therefore in view of the factors such as air pressure are to fortune
Row noise value, which is modified, can obtain the true level of noise of more accurate equipment.
Optionally, noise of the test target equipment when the test site is run obtains operation level of noise, packet
It includes：
Noise when the test point being distributed in outside the target device tests target device operation, is run
Level of noise integrally regard target device as noise source, and noise test is carried out outside it.
Optionally, the position distribution of the test point is on spherical surface or hemisphere face, the target device as noise source,
One spherical surface of external work or hemisphere face centered on target device, measure operation level of noise by multiple test points, then calculate it
Level of noise is averagely run, more accurate equipment noise value can be obtained.
Optionally, the test point is uniformly distributed on spherical surface or hemisphere face, so that the value measured is more accurate.
Optionally, the auxiliary parameter further includes the spherical surface or the hemispherical area where the test point,
Spherical surface or hemispherical size where the test point can also have an impact level of noise, therefore be also required to according to area to fortune
Row noise value is modified.
Optionally, the operation level of noise is modified according to the background noise value and auxiliary parameter, including：
The operation level of noise is modified by following formula, formula includes：
Lpt=L 'Pt-10log(1-10-0.1ΔLi)；
Δ Li=L 'Pt-L″Pi；
Wherein, LWIt is the noise true value of target device, B indicates atmospheric pressure value when test, B0Indicate standard atmospheric pressure value, θ
Indicate environment temperature when test, S is spherical surface or hemispherical area, S where the test point0For constant, N is the test
The number of point, LptIt is the level of noise after each test point is modified operation level of noise according to background noise value, L 'PtIt is institute
State the operation level of noise of test point when target device operation, L "PiIt is background noise value.
Optionally, the target device is three-phase imbalance compensation device, when the three-phase imbalance compensation device is run
Since electric current and various out-of-balance forces can also generate noise, noise test can also be carried out using the method.
Optionally, the method for the test equipment noise can be also used for detection target device with the presence or absence of hidden danger, exist
The target device of hidden danger is reexamined, and can be improved the reliability of target device, while can also reject in time not
Qualified product saves production cost.
The application also provides a kind of system of test equipment noise, including：
Noise test instrument is tested for the background noise to test site, obtains background noise value；And test
Noise of the target device when the test site is run obtains operation level of noise；
Equipment is calculated, for obtaining the background noise value, the operation level of noise and auxiliary parameter, the auxiliary ginseng
Number includes climate parameter；The operation level of noise is modified according to the background noise value and auxiliary parameter, obtains institute
State the noise true value of target device.
Compared with the prior art, the application has the advantages that：A kind of side of test equipment noise provided by the present application
Method and system can provide true level of noise of equipment under the influence of environment, the test in test run level of noise
Point is uniformly distributed in the spherical surface or hemisphere face of device external, more accurate by calculating the level of noise that average sound pressure makes, and
And the noise true value that the method obtains can be also used for detection device with the presence or absence of hidden danger, when the noise true value exists
Except the qualification parameters of the equipment of the test, the equipment of the test is determined to have hidden danger, is needed at this time to the presence
The equipment of hidden danger is reexamined, and improves the reliability of equipment, while can also reject rejected product in time, is saved
Production cost.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the application embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 shows a kind of flow diagram of the method for test equipment noise provided herein；
Fig. 2 shows the top views that test point in the embodiment of the present application is distributed.
Fig. 3 shows the side view that test point is distributed in the embodiment of the present application.
Fig. 4 shows a kind of schematic diagram of the system of test equipment noise provided herein.
Appended drawing reference in figure：
Noise test instrument -10；Calculate equipment -20.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Therefore, with
Under claimed scope of the present application is not intended to limit to the detailed description of the embodiments herein provided in the accompanying drawings,
But it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not making wound
Every other embodiment obtained under the premise of the property made is worked, shall fall in the protection scope of this application.
It should also be noted that the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion,
So that the process, method, article or equipment for including a series of elements not only includes those elements, but also including not having
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device, for
For those skilled in the art, the concrete meaning of above-mentioned term in this application can be understood with concrete condition.
With reference to the accompanying drawing, it elaborates to some embodiments of the application.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
The application first aspect provides a kind of method of test equipment noise, refering to fig. 1, the method includes：
Step 101：The background noise of test site is tested, background noise value is obtained；
Step 102：Noise of the test target equipment when the test site is run obtains operation level of noise；
Step 103：The operation level of noise is modified according to the background noise value and auxiliary parameter, obtains institute
The noise true value of target device is stated, the auxiliary parameter includes climate parameter.
The climate parameter can be atmospheric pressure value, temperature value, humidity value or particulate in air concentration and other and will affect
Other climate parameters of the operation level of noise of target device.
In the embodiment of the present application, which can be obtained by corresponding apparatus measures, for example, being measured by air pressure
The atmospheric pressure value for measuring test site tests the temperature value etc. of test site by thermometer.The climate parameter can also be from offer gas
It waits and is obtained at the service provider of data, for example, actively sending asking for the climatic data for obtaining current location to climatic data service provider
It asks, receives the climatic data of climatic data service provider return, alternatively, some cycles are pressed to test equipment by climatic data service provider
Push the climatic data of test site.
In above-mentioned technical proposal, the environmental noise of test site and the auxiliary parameter including climatic data are obtained,
The operation level of noise of the target device measured in test site is modified, reduces environmental factor to target device level of noise
It influences, improves the accuracy of the noise test value of target device.
Optionally, after step 102 and step 103：According to the background noise value and auxiliary parameter to the fortune
Before Row noise value is modified, the method also includes：
Step 104：Determine that the background noise value and the difference of the operation level of noise are less than first threshold.
In this optional embodiment, step 102 is being executed, after obtaining operation level of noise, not immediately according to step
103 pairs of operation levels of noise are modified, but the operation that the background noise value of the determination of judgment step 101 is obtained with step 102 is made an uproar
Whether value differs greatly, and both only smaller (difference of background noise value and the operation level of noise is less than the first threshold for difference
Value) when, just operation level of noise is modified according to environmental noise and auxiliary parameter；If background noise value and operation level of noise
Differ greatly (difference of background noise value and the operation level of noise is more than or equal to the first threshold) when, environmental noise and auxiliary
Help the influence of the level of noise of parameters on target equipment not significant, the operation level of noise that can not be obtained to step 102 is modified,
In the case where guaranteeing the accuracy of target device level of noise, to reduce test time-consuming and operand.
Optionally, step 102：Noise of the target device when the test site is run is tested, operation is obtained and makes an uproar
Value, including：
Making an uproar when the one or more test points being distributed in outside the target device test target device operation
Sound obtains the operation level of noise.In this implementation, it integrally regard target device as noise source, noise survey is carried out outside it
Examination, accuracy is higher, and when through multiple test point test run levels of noise, test accuracy is further increased.
Optionally, the test point being distributed in outside target device is distributed on spherical surface or hemisphere face, and the target is set
It is standby to be used as noise source, since sound wave has the shape of spherical wave, in test, centered on target device, make one outside it
Spherical surface or hemisphere face are classified as n equal face elements, test an operation level of noise at the center of each face element, calculate it
Level of noise is averagely run, the level of noise made is more accurate, avoids error.
Optionally, the test point is uniformly distributed on spherical surface or hemisphere face, is made an uproar by what calculating average sound pressure made
Value is more accurate, and Fig. 2 and Fig. 3 show a kind of possible implementations that test point is distributed on hemisphere face.
Optionally, auxiliary parameter further includes the spherical surface or hemispherical area where test point, the spherical surface where test point
Or hemispherical size can also have an impact level of noise, therefore be also required to according to area be modified operation level of noise.
Optionally, operation level of noise is modified according to background noise value and auxiliary parameter, including：
Pass through formulaThe operation level of noise is modified, wherein LWIt is making an uproar for target device
Sound true value, C indicate auxiliary parameter to the correction value of noise,It is the revised average sound pressure level of background noise.
For example, the application can be according to the spherical surface or hemisphere where background noise value, atmospheric pressure value, temperature value and test point
The area in face is modified operation level of noise, passes through formulaThe true value of noise is obtained,
It is the revised average sound pressure level of background noise, C1Indicate the correction value of atmospheric pressure value, temperature value to operation noise, C2Indicate test point institute
In spherical surface or hemispherical area to the correction value for running noise, whereinLpt
=L 'Pt-KLi=L 'Pt-10log(1-10-0.1ΔLi),
Δ Li=L 'Pt-L″Pi, N is the number of test point, LptIt is that each test point repairs operation level of noise according to background noise value
Level of noise after just, S be perpendicular to Acoustic Wave Propagation direction closing area i.e. the test point where spherical surface or hemisphere face
Area, S0For constant, B indicates atmospheric pressure value when test, B0Indicating standard atmospheric pressure value, θ indicates environment temperature when test,
L′PtThe operation level of noise of each test point, L " when being target device operationPiIt is background noise value, can be transported by above-mentioned formula
Calculation obtains the noise true value of target device.
Optionally, the target device of test can be three-phase imbalance compensation device.The three-phase imbalance compensation device is adopted
Threephase load imbalance is adjusted with power electronic technique, at the same can also real-time detection go out load in reactive current,
Inversion goes out compensation electric current in contrast, it is ensured that from the electric current of power grid feed-in is active balance electric current, reduces electric network pollution, realize
Green power supply, the three-phase imbalance compensation device at runtime since electric current and various out-of-balance forces can also generate noise,
Noise test can be carried out using the method for the test equipment noise.
Optionally, the method for the test equipment noise can be used for detecting target device with the presence or absence of hidden danger, when noise is true
Within the qualification parameters of the target device of test, it is qualified that the target device of the test determines real value；When noise true value is being surveyed
Except the qualification parameters of the target device of examination, the target device of test is determined to have hidden danger, the target device there are hidden danger
It is reexamined, improves the reliability of target device, while rejected product can also be rejected in time, saving is produced into
This.
The application second aspect additionally provides a kind of system of test equipment noise, refering to Fig. 4, the system comprises：
Noise test instrument 10 is tested for the background noise to test site, obtains background noise value；And it surveys
Noise of the target device when the test site is run is tried, operation level of noise is obtained；
Equipment 20 is calculated, for obtaining the background noise value, the operation level of noise and auxiliary parameter, the auxiliary
Parameter includes climate parameter；Operation level of noise is modified according to background noise value and auxiliary parameter, obtains target device
Noise true value.
Optionally, which can be atmospheric pressure value, temperature value, humidity value or particulate in air concentration, Yi Jiqi
He will affect other climate parameters of the operation level of noise of target device.
Optionally, the climate parameter value can be measured by corresponding test equipment, can also be from offer weather
It is obtained at the service provider of data, for example, the request for obtaining the climatic data of current location is actively sent to climatic data service provider,
The climatic data for receiving climatic data service provider return, alternatively, climatic data service provider is pushed away by some cycles to test equipment
Send the climatic data of test site.
Optionally, multiple test points of the noise test instrument 10 outside target device measure operation level of noise, calculate equipment
When 20 determining background noise values and the difference for running level of noise are less than first threshold, operation level of noise progress background noise is repaired
Just, operation level of noise influence is not shown when the difference of background noise value and operation level of noise is greater than first threshold, that is, background noise value
When work, then operation level of noise is not modified, can be reduced in the case where guaranteeing the accuracy of target device level of noise a large amount of
Operation.
Optionally, noise test instrument 10 can carry out the test of operation level of noise to multiple test points simultaneously, can also be by
A pair of multiple test points carry out the test of operation level of noise.
In a kind of optional technical solution of herein described system, calculate equipment 20 according to background noise value, atmospheric pressure value,
When spherical surface where temperature value and test point or hemispherical area are modified operation level of noise, pass through formula Obtain the true value of noise, wherein C1Indicate atmospheric pressure value and temperature value to operation noise
Correction value, C2Spherical surface where indicating test point or hemispherical area are to the correction value for running noise.
In above-mentioned formula,N is the number of test point, LptIt is every
A test point according to background noise value to operation level of noise be modified after level of noise, Lpt=L 'Pt-KLi=L 'Pt-10log
(1-10-0.1ΔLi), Δ Li=L 'Pt-L″Pi, L 'PtIt is the operation level of noise of target device runtime test point, L "PiIt is that background is made an uproar
Value,B indicates atmospheric pressure value when test, B0Indicate standard atmospheric pressure value, θ
Indicate environment temperature when test,S is perpendicular to the closing area in Acoustic Wave Propagation direction namely
Spherical surface or hemispherical area, S where the test point0For constant.
Optionally, the target device of test can be three-phase imbalance compensation device, which exists
Since electric current and various out-of-balance forces can also generate noise when operation, can also using the test equipment noise system into
Row noise test.
The specific implementation of the noise test instrument 10 be referred in the method for aforementioned test equipment noise step 101 with
And the various possible implementations of step 102；The specific implementation of the calculating equipment 20 is referred to aforementioned test equipment
The various possible implementations of step 103 in the method for noise.
Compared with the prior art, the application has the advantages that：A kind of side of test equipment noise provided by the present application
Method and system can provide true level of noise of equipment under the influence of environment, the test in test run level of noise
Point is uniformly distributed in the spherical surface or hemisphere face of device external, more accurate by calculating the level of noise that average sound pressure makes, and
And the noise true value that the method obtains can be also used for detection device with the presence or absence of hidden danger, when the noise true value exists
Except the qualification parameters of the equipment of the test, the equipment of the test is determined to have hidden danger, is needed at this time to the presence
The equipment of hidden danger is reexamined, and improves the reliability of equipment, while can also reject rejected product in time, is saved
Production cost.
The foregoing is merely the alternative embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of method of test equipment noise, which is characterized in that including：
The background noise of test site is tested, background noise value is obtained；
Noise of the test target equipment when the test site is run obtains operation level of noise；
The operation level of noise is modified according to the background noise value and auxiliary parameter, obtains the target device
Noise true value, the auxiliary parameter include climate parameter.
2. the method according to claim 1, wherein the acquisition run level of noise after and the basis
Before the background noise value and auxiliary parameter are modified the operation level of noise, the method also includes：
Determine that the background noise value and the difference of the operation level of noise are less than first threshold.
3. the method according to claim 1, wherein the climate parameter includes atmospheric pressure value, temperature value and wet
At least one of in angle value.
4. the method according to claim 1, wherein the test target equipment is when the test site is run
Noise, obtain operation level of noise, including：
Noise when the test point being distributed in outside the target device tests target device operation obtains operation noise
Value.
5. according to the method described in claim 4, it is characterized in that, the position distribution of the test point is in spherical surface or hemisphere face
On.
6. according to the method described in claim 5, it is characterized in that, the test point is uniformly distributed on spherical surface or hemisphere face.
7. according to the method described in claim 5, it is characterized in that, the auxiliary parameter further includes the institute where the test point
State spherical surface or the hemispherical area.
8. according to the method described in claim 3, it is characterized in that, according to the background noise value and auxiliary parameter to described
Operation level of noise is modified, including：
The operation level of noise is modified by following formula, formula includes：
Lpt=L 'Pt-10log(1-10-0.1ΔLi)；
Δ Li=L 'Pt-L″Pi；
Wherein, LWIt is the noise true value of target device, B indicates atmospheric pressure value when test, B0Indicate standard atmospheric pressure value, θ is indicated
Environment temperature when test, S are spherical surface or hemispherical area, S where the test point0For constant, N is the test point
Number, LptIt is the level of noise after each test point is modified operation level of noise according to background noise value, L 'PtIt is the mesh
The operation level of noise of marking device test point when running, L "PiIt is background noise value.
9. method according to claim 1-8, which is characterized in that the target device is three-phase imbalance compensation
Device.
10. a kind of system of test equipment noise, which is characterized in that including：
Noise test instrument is tested for the background noise to test site, obtains background noise value；And described in test
Noise of the target device when the test site is run obtains operation level of noise；
Equipment is calculated, for obtaining the background noise value, the operation level of noise and auxiliary parameter, the auxiliary parameter packet
Include climate parameter；The operation level of noise is modified according to the background noise value and auxiliary parameter, obtains the mesh
The noise true value of marking device.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494959A (en) * | 2020-04-08 | 2021-10-12 | 苏州文泽可智能科技有限公司 | Method for judging noise of plant |
| CN113588073A (en) * | 2021-08-05 | 2021-11-02 | 山东省路桥集团有限公司 | A portable noise monitoring device |
| CN115031829A (en) * | 2022-06-06 | 2022-09-09 | 扬芯科技(深圳)有限公司 | Product noise testing method and system |
| WO2023120332A1 (en) * | 2021-12-24 | 2023-06-29 | リオン株式会社 | Noise level meter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786574Y (en) * | 2004-02-16 | 2006-06-07 | 黑龙江红鸿科技贸易发展有限责任公司 | Environmental noise on-line automatic monitoring system |
| CN202974425U (en) * | 2012-10-26 | 2013-06-05 | 中国电力科学研究院 | Wind turbine generator noise testing system |
| TW201350804A (en) * | 2012-03-23 | 2013-12-16 | Mitsubishi Electric Corp | Abnormal sound diagnostic equipment |
| CN104697628A (en) * | 2013-12-04 | 2015-06-10 | 苏州水天堂软件科技有限公司 | Mobile automatic noise monitoring device |
| US20150160333A1 (en) * | 2013-12-05 | 2015-06-11 | Korea Institute Of Geoscience And Mineral Resources | Method of calibrating an infrasound detection apparatus and system for calibrating the infrasound detection apparatus |
| CN106840373A (en) * | 2016-12-26 | 2017-06-13 | 中国人民解放军空军装备研究院雷达与电子对抗研究所 | Aircraft noise monitoring method and its device |
-
2018
- 2018-04-27 CN CN201810390478.8A patent/CN108827456A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786574Y (en) * | 2004-02-16 | 2006-06-07 | 黑龙江红鸿科技贸易发展有限责任公司 | Environmental noise on-line automatic monitoring system |
| TW201350804A (en) * | 2012-03-23 | 2013-12-16 | Mitsubishi Electric Corp | Abnormal sound diagnostic equipment |
| CN202974425U (en) * | 2012-10-26 | 2013-06-05 | 中国电力科学研究院 | Wind turbine generator noise testing system |
| CN104697628A (en) * | 2013-12-04 | 2015-06-10 | 苏州水天堂软件科技有限公司 | Mobile automatic noise monitoring device |
| US20150160333A1 (en) * | 2013-12-05 | 2015-06-11 | Korea Institute Of Geoscience And Mineral Resources | Method of calibrating an infrasound detection apparatus and system for calibrating the infrasound detection apparatus |
| CN106840373A (en) * | 2016-12-26 | 2017-06-13 | 中国人民解放军空军装备研究院雷达与电子对抗研究所 | Aircraft noise monitoring method and its device |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国机械工业部: "《中华人民共和国机械行业标准 JB/T 7232-94 包装机械噪声声功率级的测定-简易法》", 18 July 1994 * |
| 何卓斌等: "《测定噪声源声功率级中背景噪声级的修正》", 《家电科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494959A (en) * | 2020-04-08 | 2021-10-12 | 苏州文泽可智能科技有限公司 | Method for judging noise of plant |
| CN113588073A (en) * | 2021-08-05 | 2021-11-02 | 山东省路桥集团有限公司 | A portable noise monitoring device |
| WO2023120332A1 (en) * | 2021-12-24 | 2023-06-29 | リオン株式会社 | Noise level meter |
| CN115031829A (en) * | 2022-06-06 | 2022-09-09 | 扬芯科技(深圳)有限公司 | Product noise testing method and system |
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Application publication date: 20181116 |