CN104215694A - Acoustic insulation testing device for fabric - Google Patents
Acoustic insulation testing device for fabric Download PDFInfo
- Publication number
- CN104215694A CN104215694A CN201410442418.8A CN201410442418A CN104215694A CN 104215694 A CN104215694 A CN 104215694A CN 201410442418 A CN201410442418 A CN 201410442418A CN 104215694 A CN104215694 A CN 104215694A
- Authority
- CN
- China
- Prior art keywords
- sound
- fabric
- perforate
- silencing case
- attenuated enclosure
- 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.)
- Pending
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an acoustic insulation testing device for fabric. The acoustic insulation testing device for fabric comprises a sound emission device and a sound attenuated enclosure device, wherein the sound attenuated enclosure device comprises a first sound attenuated enclosure and a second sound attenuated enclosure; the first sound attenuated enclosure and the second sound attenuated enclosure are tightly attached to each other; a first open hole is formed in the surface, which is tightly attached to the second sound attenuated enclosure, of the first sound attenuated enclosure; a second open hole is formed in the surface, which is tightly attached to the first sound attenuated enclosure, of the second sound attenuated enclosure; the first open hole is the same as the second open hole in size; the sound emission device is connected with a sounding device; the sounding device is placed into the first sound attenuated enclosure; a first sound receiving device is arranged on the surface corresponding to the surface in which the first open hole is formed on the first sound attenuated enclosure; and a second sound receiving device is arranged on the surface corresponding to the surface in which the second open hole is formed on the second sound attenuated enclosure. According to the acoustic insulation testing device, the noise reduction performance of the fabric is effectively tested, the defects that a special testing device is high in cost and not simple and convenient are overcome, the acoustic insulation testing device is rapid and simple in testing process, and easy to operate, data are displayed in real time online, and the noise reduction performance of the fabric can be accurately tested.
Description
Technical field
The present invention relates to noise safety test technical field, particularly relate to a kind of sound-adsorbing sound-insulating hung proving installation of fabric anti-acoustic capability.
Background technology
Current method of testing Reverberation room method and standing-wave-tube method for the test of fabric sound-adsorbing sound-insulating hung.Reverberation room method is the surface of the sound wave of different frequency being incided to material with identical frequency from all directions, then determines the acoustical absorption coefficient of material according to the variation of putting the acoustic absorbant front and back reverberation time in reverberation chamber into.And standing-wave-tube method, measured material is placed on one end of standing wave tube, to the other end radiator plane ripple in pipe, when sound wave incides material surface like this, be vertical, reflect a part, absorbed a part by material, produce standing wave thereby stack occurs in pipe for reflection wave and incident wave, just had being alternately distributed of acoustic pressure.Then in pipe, the acoustic pressure of standing-wave sound field is received by inserting tube movably, and sound pressure level maximum value and minimal value are measured by testing tool, thereby calculate normal incidence sound absorption coefficient.Reverberation chamber can be measured sound wave without the acoustical absorption coefficient and the single body absorption that are included into while penetrating, and measured acoustical absorption coefficient and absorption can apply in acoustic design engineering, but this method test specimen area large, install and measure inconvenience.Acoustical absorption coefficient when standing-wave-tube method can be measured sound wave normal incidence and specific acoustic impedance, although test specimen area little, install and measure conveniently, the acoustic element of use is more, test process is more complicated, cost is higher.
The method of testing of two kinds of above test fabric anti-acoustic capabilities is methods of traditional test sound-absorption coefficient, but it has complicated test process, expensive, and laboratory condition has relatively high expectations, and general amateur acoustical laboratory cannot carry out.Therefore, not to test very accurately for most of use for laboratories and requirement, invent a set of cost proving installation low and that feasibility is high necessary.
Summary of the invention
Technical matters to be solved by this invention is the shortcoming that proving installation cost is high, method of testing is complicated for current fabric anti-acoustic capability, and a kind of fabric sound-adsorbing sound-insulating hung proving installation is provided, and this installation cost is low, and test process is quick, easy, easy to operate.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of fabric sound-adsorbing sound-insulating hung proving installation, comprise sound radiating devices and mute box apparatus, described mute box apparatus comprises the first silencing case and the second silencing case, the first silencing case and the second silencing case fit tightly, the face that the first silencing case and the second silencing case fit tightly is provided with the first perforate, the face that the second silencing case and the first silencing case fit tightly is provided with the second perforate, the first perforate is identical with the size of the second perforate, described sound radiating devices is connected with sound-producing device, sound-producing device is placed in the first silencing case, the face corresponding with the first perforate place face of the first silencing case is provided with the first sound receiver, the face corresponding with the second perforate place face of the second silencing case is provided with the second sound receiver.
Described sound radiating devices is the computing machine that audio analysis software is housed.
Described the first sound receiver and the second sound receiver are decibel instrument.
The face corresponding with the first perforate place face of the first silencing case is provided with first opening of inserting for the capacitance microphone of the first sound receiver.
The face corresponding with the second circular hole place face of the second silencing case is provided with second opening of inserting for the capacitance microphone of the second sound receiver.
Described sound-producing device is between the first sound receiver and the first circular hole, and the center line of the first sound receiver, sound-producing device and the first circular hole point-blank.
Beneficial effect of the present invention: (1) has effectively realized the test of fabric anti-acoustic capability; (2) installation cost adopting is low, has overcome high, the not easy shortcoming of professional test installation cost, and test process is fast and convenient and easy to operate; (3) online data shows in real time, can accurately test a kind of anti-acoustic capability of fabric, and the energy level of the anti-acoustic capability of more several fabrics well; (4) in the laboratory that test can require in difference, complete, make the applicability of this device more extensive, be mainly applicable to the test of textile material and compound substance sound-adsorbing sound-insulating hung performance thereof.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is working state structure schematic diagram of the present invention.
Fig. 3 is silencing case structural representation of the present invention.
Fig. 4 is the decibel value-frequency plot of three kinds of non-woven materials testing of the present invention.
Fig. 5 is the sound-absorption coefficient-frequency plot of three kinds of non-woven materials of Reverberation room method test.
Fig. 6 is the sound-absorption coefficient-frequency plot of three kinds of non-woven materials of standing-wave-tube method test.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Fabric sound-adsorbing sound-insulating hung proving installation of the present invention, as shown in Figure 1, comprise computing machine 1 and mute box apparatus 2, mute box apparatus 2 comprises the first silencing case 6 and the second silencing case 7, the first silencing case 6 and the second silencing case 7 fit tightly, the face that the first silencing case 6 and the second silencing case 7 fit tightly is provided with the first perforate 10, the face that the second silencing case 7 and the first silencing case 6 fit tightly is provided with the second perforate 11, the first perforate 10 is identical with the size of the second perforate 11, the first perforate 10 and the second perforate 11 can be that circular port can be also square opening, or the hole that other sizes are identical, present embodiment is circular port, the face corresponding with the first perforate 10 place faces of the first silencing case 6 is provided with the first opening 8, the capacitance microphone of first decibel of instrument 3 inserts in the first silencing case 6 by the first opening 8, the capacitance microphone that the face corresponding with the second perforate 11 place faces of the second silencing case 7 is provided with 9, the second decibels of instrument 4 of the second opening inserts in the second silencing case 7 by the second opening 9.
Sound radiating devices 1 is that sound equipment 5 is connected with sound-producing device, sound equipment 5 is placed in the first silencing case 6, wherein sound radiating devices 1 is for being equipped with the computing machine that audio analysis software is SpectralAB software, sound equipment 5 is between the first sound receiver 3 and the first perforate 10, and the center line of the first sound receiver 3, sound equipment 5 and the first perforate 10 point-blank.
The course of work of fabric sound-adsorbing sound-insulating hung proving installation of the present invention is: in a relatively quiet and stable experimental situation, tested fabric is placed between the first perforate 10 and the second perforate 11, and hiding the first perforate 10 and the second perforate 11, then make the face at the first perforate 10 places of the first silencing case 6 and the face at the second perforate 11 places of the second silencing case 7 fit tightly, rely on the perfect adaptation of computing machine and SpectralAB software, SpectralAB software by computing machine 1 sends 500Hz, 1000 Hz, 2000 Hz, 4000 Hz, the acoustical signal of the different frequencies such as 5000 Hz, acoustical signal is sent by the sound equipment 5 in the first silencing case 6, first decibel of instrument 3 receives acoustical signal and can show a decibel value, acoustical signal arrives the second silencing case 7 through fabric 12, second decibel of instrument 4 receives acoustical signal and can show a decibel value.SpectralAB software repeatedly sends same fixing acoustical signal, and the average of trying to achieve difference can represent the anti-acoustic capability of tested fabric.
Taking the label of 3M company as TC1803, TC2303, tri-kinds of supatex fabric of SM600L are as example, to test by above-mentioned experimental technique, the basic parameter of fabric sample is as shown in table 1.
The basic parameter of table 1 fabric sample
| Test piece number (Test pc No.) | Sample material | Thickness (mm) | Weight per square meter (g/m 2) |
| TC1803 | Supatex fabric | 16.7 | 190 |
| TC2303 | Supatex fabric | 23.7 | 240 |
| SM600L | Supatex fabric | 72.1 | 675 |
First three kinds of supatex fabric are tested, test decibel value-frequency curve is as Fig. 4.In order to prove the feasibility of this invention, also with Reverberation room method and standing-wave-tube method, these three kinds of supatex fabric to be tested respectively, the curve of test sound-absorption coefficient-frequency is respectively as Fig. 5,6.
As can be seen from Figure 4, label is that the anti-acoustic capability of supatex fabric of SM 600L is best, and the anti-acoustic capability of the supatex fabric that label is TC2303 takes second place, and the anti-acoustic capability of the supatex fabric that label is TC1803 is the poorest.As shown in Table 1, label is that the thickness of the supatex fabric of SM 600L is the thickest in three kinds of test fabric, and the thickness of the supatex fabric that label is TC1803 is the thinnest.Therefore, can learn that by figure the anti-acoustic capability of fabric and the thickness of fabric have certain positive correlation, this conforms to the concept that the anti-acoustic capability of traditional fabric strengthens with the increase of fabric thickness.
Synthesizing map 4, Fig. 5 and Fig. 6, can learn that the sign sound absorption qualities curve tendency that utilizes proving installation of the present invention and traditional two kinds of method of testings to record is roughly the same, and noise reduction conforms to substantially.And two kinds of traditional method of testings have the accuracy of height and the accuracy of test, this has effectively proved feasibility and the science of the present invention for the performance test of fabric sound-adsorbing sound-insulating hung.
Claims (6)
1. a fabric sound-adsorbing sound-insulating hung proving installation, comprise sound radiating devices (1) and mute box apparatus (2), it is characterized in that: described mute box apparatus (2) comprises the first silencing case (6) and the second silencing case (7), the first silencing case (6) is provided with the first perforate (10), the second silencing case (7) is provided with the second perforate (11), the center of identical and the first perforate (10) of the size of the first perforate (10) and the second perforate (11) and the second perforate (11) point-blank, described sound radiating devices (1) is connected with sound-producing device (5), sound-producing device (5) is placed in the first silencing case (6), the face corresponding with the first perforate (10) place face of the first silencing case (6) is provided with the first sound receiver (3), the face corresponding with the second perforate (11) place face of the second silencing case (7) is provided with the second sound receiver (4).
2. fabric sound-adsorbing sound-insulating hung proving installation according to claim 1, is characterized in that: described sound radiating devices (1) is for being equipped with the computing machine of audio analysis software.
3. fabric sound-adsorbing sound-insulating hung proving installation according to claim 1, is characterized in that: described the first sound receiver (3) and the second sound receiver (4) are decibel instrument.
4. fabric sound-adsorbing sound-insulating hung proving installation according to claim 1, is characterized in that: the face corresponding with the first perforate (10) place face of the first silencing case (6) is provided with first opening (8) of inserting for the capacitance microphone of the first sound receiver (3).
5. fabric sound-adsorbing sound-insulating hung proving installation according to claim 1, is characterized in that: the face corresponding with the second perforate (11) place face of the second silencing case (7) is provided with second opening (9) of inserting for the capacitance microphone of the second sound receiver (4).
6. fabric sound-adsorbing sound-insulating hung proving installation according to claim 1, it is characterized in that: described sound-producing device (5) is positioned between the first sound receiver (3) and the first perforate (10), and the center line of the first sound receiver (3), sound-producing device (5) and the first perforate (10) point-blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442418.8A CN104215694A (en) | 2014-09-02 | 2014-09-02 | Acoustic insulation testing device for fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442418.8A CN104215694A (en) | 2014-09-02 | 2014-09-02 | Acoustic insulation testing device for fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104215694A true CN104215694A (en) | 2014-12-17 |
Family
ID=52097408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410442418.8A Pending CN104215694A (en) | 2014-09-02 | 2014-09-02 | Acoustic insulation testing device for fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104215694A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307098A (en) * | 2015-10-30 | 2016-02-03 | 歌尔声学股份有限公司 | Test tool, test system and test method |
| CN105973979A (en) * | 2016-04-26 | 2016-09-28 | 哈尔滨工程大学 | Device for measuring sound absorption and sound insulation coefficients of underwater acoustic material based on reverberation method |
| CN106289827A (en) * | 2015-06-11 | 2017-01-04 | 广州行盛玻璃幕墙工程有限公司 | A kind of detection device of door and window sound insulation property |
| CN107621494A (en) * | 2017-09-27 | 2018-01-23 | 福耀玻璃工业集团股份有限公司 | A kind of glass sound insulation value contrasts device |
| CN107807172A (en) * | 2017-09-28 | 2018-03-16 | 哈尔滨工程大学 | The sound insulation measurement device and measuring method of random incidence underwater sound coating under pressurized conditions |
| CN109239200A (en) * | 2018-10-22 | 2019-01-18 | 长沙标朗住工科技有限公司 | A kind of device and method for testing wall material sound insulation and noise reduction |
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
| CN111983033A (en) * | 2020-08-21 | 2020-11-24 | 无锡吉兴汽车声学部件科技有限公司 | Acoustic material high-frequency noise reduction performance testing equipment and evaluation method |
| CN113960175A (en) * | 2021-10-21 | 2022-01-21 | 格云特自动化科技（深圳）有限公司 | Material permeability detection device |
| CN114778685A (en) * | 2022-06-21 | 2022-07-22 | 江苏声望声学装备有限公司 | Soundproof door sound insulation effect testing arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454312A (en) * | 1999-06-28 | 2003-11-05 | 因特利姆技术公司 | Vibration testing apparatus and method using acoustical waves |
| CN102761813A (en) * | 2011-04-25 | 2012-10-31 | 张强 | Microphone joint test method |
| CN103474057A (en) * | 2013-09-13 | 2013-12-25 | 苏州岸肯电子科技有限公司 | Silencing chamber |
| CN204228665U (en) * | 2014-09-02 | 2015-03-25 | 中原工学院 | Fabric sound-adsorbing sound-insulating hung proving installation |
-
2014
- 2014-09-02 CN CN201410442418.8A patent/CN104215694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454312A (en) * | 1999-06-28 | 2003-11-05 | 因特利姆技术公司 | Vibration testing apparatus and method using acoustical waves |
| CN102761813A (en) * | 2011-04-25 | 2012-10-31 | 张强 | Microphone joint test method |
| CN103474057A (en) * | 2013-09-13 | 2013-12-25 | 苏州岸肯电子科技有限公司 | Silencing chamber |
| CN204228665U (en) * | 2014-09-02 | 2015-03-25 | 中原工学院 | Fabric sound-adsorbing sound-insulating hung proving installation |
Non-Patent Citations (5)
| Title |
|---|
| 周竹君等: "轻型结构隔声试验研究", 《铁道车辆》 * |
| 曹四平: "轿车地毯的隔声要求及测试方法", 《客车技术与研究》 * |
| 李想等: "涤纶机织物降噪音性能的研究", 《纺织导报》 * |
| 陈卫松等: "隔声现场测量的扬声器声源法改进", 《噪声与振动控制》 * |
| 韩潇等: "机织物隔声性能的测试与分析", 《纺织科技进展》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289827A (en) * | 2015-06-11 | 2017-01-04 | 广州行盛玻璃幕墙工程有限公司 | A kind of detection device of door and window sound insulation property |
| CN105307098B (en) * | 2015-10-30 | 2018-10-19 | 歌尔股份有限公司 | A kind of test fixture, test system and test method |
| CN105307098A (en) * | 2015-10-30 | 2016-02-03 | 歌尔声学股份有限公司 | Test tool, test system and test method |
| CN105973979A (en) * | 2016-04-26 | 2016-09-28 | 哈尔滨工程大学 | Device for measuring sound absorption and sound insulation coefficients of underwater acoustic material based on reverberation method |
| CN105973979B (en) * | 2016-04-26 | 2019-04-23 | 哈尔滨工程大学 | A kind of sound absorption of underwater sound material and acoustical reduction coefficient measuring device based on reverberation method |
| CN107621494A (en) * | 2017-09-27 | 2018-01-23 | 福耀玻璃工业集团股份有限公司 | A kind of glass sound insulation value contrasts device |
| CN107807172A (en) * | 2017-09-28 | 2018-03-16 | 哈尔滨工程大学 | The sound insulation measurement device and measuring method of random incidence underwater sound coating under pressurized conditions |
| CN107807172B (en) * | 2017-09-28 | 2020-07-28 | 哈尔滨工程大学 | Sound insulation measuring device and method for random incidence underwater acoustic covering layer under pressurization condition |
| CN109239200B (en) * | 2018-10-22 | 2024-04-05 | 长沙标朗住工科技有限公司 | Device and method for testing sound insulation and noise reduction of wall material |
| CN109239200A (en) * | 2018-10-22 | 2019-01-18 | 长沙标朗住工科技有限公司 | A kind of device and method for testing wall material sound insulation and noise reduction |
| CN109870507A (en) * | 2019-01-25 | 2019-06-11 | 河海大学 | A kind of porous asphalt mixture noise absorbent and communication effect test device and usage |
| CN109870507B (en) * | 2019-01-25 | 2021-09-07 | 河海大学 | Porous asphalt mixture noise absorption and propagation effect testing device and application method |
| CN111983033A (en) * | 2020-08-21 | 2020-11-24 | 无锡吉兴汽车声学部件科技有限公司 | Acoustic material high-frequency noise reduction performance testing equipment and evaluation method |
| CN113960175A (en) * | 2021-10-21 | 2022-01-21 | 格云特自动化科技（深圳）有限公司 | Material permeability detection device |
| CN113960175B (en) * | 2021-10-21 | 2024-03-01 | 格云特自动化科技（深圳）有限公司 | Material permeability detection device |
| CN114778685A (en) * | 2022-06-21 | 2022-07-22 | 江苏声望声学装备有限公司 | Soundproof door sound insulation effect testing arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104215694A (en) | Acoustic insulation testing device for fabric | |
| CN204228665U (en) | Fabric sound-adsorbing sound-insulating hung proving installation | |
| CN107219301A (en) | A kind of device for being used to test vehicle glass sound insulation value | |
| CN109238436B (en) | Method for measuring transient sound source characteristics in reverberation pool | |
| Jacobsen | Sound intensity | |
| CN102426191A (en) | Test method for measuring sound absorption coefficient of sound absorption or sound insulation material by use of reverberation chamber | |
| CN106768266A (en) | A kind of measuring method of the factory building reverberation time for rejecting background noise energy | |
| Raman et al. | Detection and quantification of building air infiltration using remote acoustic methods | |
| Din et al. | REPRODUCIBILITY AND APPLICABILITY OF ENSEMBLE AVERAGED SURFACE NORMAL IMPEDANCE OF MATERIALS USING AN IN-SITU TECHNIQUE. | |
| CN104869519B (en) | A kind of method and system of test microphone background noise | |
| CN105467013A (en) | Sound insulating material transmission loss predicting system and method based on mass law | |
| CN102426035B (en) | Method for testing static flow resistivity and tortuosity of porous sound-absorbing material | |
| Cabrera et al. | Increasing robustness in the calculation of the speech transmission index from impulse responses | |
| CN107785025A (en) | Noise remove method and device based on room impulse response duplicate measurements | |
| Ţopa et al. | Comparison of different experimental methods for the assessment of the room’s acoustics | |
| CN106124627B (en) | A kind of sound scattering coefficient on-the-spot test microphone linear array | |
| Wu et al. | A method to measure hearing aid directivity index and polar pattern in small and reverberant enclosures | |
| CN106710602B (en) | Acoustic reverberation time estimation method and device | |
| Kuipers | Measuring sound absorption using local field assumptions | |
| Bogomolov et al. | Analysis of the uncertainty of acoustic measurements at various angles of incidence of acoustic waves on a measuring microphone | |
| Robin | Alternative methods for the measurement of panel transmission loss under diffuse acoustic field excitation | |
| Sakagami et al. | Use of smartphones for introductory acoustics education | |
| Barre et al. | Room impulse response measurement with a spherical microphone array, application to room and building acoustics | |
| CN205844267U (en) | A kind of sound scattering coefficient on-the-spot test microphone linear array | |
| Fahy | Measurement of audio-frequency sound in air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |
|
| RJ01 | Rejection of invention patent application after publication |