CN109270167A - A kind of method and device using electric signal testing air permeable paper performance - Google Patents
A kind of method and device using electric signal testing air permeable paper performance Download PDFInfo
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- CN109270167A CN109270167A CN201811295028.7A CN201811295028A CN109270167A CN 109270167 A CN109270167 A CN 109270167A CN 201811295028 A CN201811295028 A CN 201811295028A CN 109270167 A CN109270167 A CN 109270167A
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000005236 sound signal Effects 0.000 claims abstract description 9
- 230000002146 bilateral effect Effects 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000012956 testing procedure Methods 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 208000033748 Device issues Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to air-permeable paper technical field of performance test, specifically disclose a kind of method and device using electric signal testing air permeable paper performance, the described method includes: the transmission of sound signals delay time that S1, record acoustical generator are generated to receiver distance, and using this time as fiducial time T1；S2, air-permeable paper is placed between acoustical generator and receiver, record the transmission of sound signals delay time that acoustical generator is generated to receiver distance, and using this time as delay time T2；S3, the performance that air-permeable paper is judged by the delay inequality of computation delay time T2 and fiducial time T1, testing procedure of the invention is simple, at low cost, is influenced by outside environmental elements small, and test data is accurate.
Description
Technical field
The present invention relates to air-permeable paper technical field of performance test more particularly to a kind of utilization electric signal testing air permeable paper performances
Method and device.
Background technique
Air-permeable paper is widely used for earphone, on microphone core for adjusting the common used material of sound quality, currently on the market
In testing air permeable paper, air-permeable paper tester is largely used, the use principle of air-permeable paper tester is: in constant pressure environment
Under, air-permeable paper is placed on middle position, placement force sensor detects admission pressure in side, while placing in the other side
Same pressure sensor detection obtains the close of air-permeable paper by the calculating of pressure difference by the outlet pressure after air-permeable paper
Degree and stability.
When being tested using air-permeable paper tester, it is difficult to guarantee the constant-pressure stable of test environment, the fluctuation of pressure
Influence to test result is very big, it is high to lead to test error degree, while air-permeable paper tester is expensive, and enterprise is come
It says and will cause certain cost input.
Summary of the invention
In view of the above technical problems, at low cost the present invention provides a kind of testing procedure is simple, by outside environmental elements shadow
Sound is small, and test data accurately utilizes the method and device of electric signal testing air permeable paper performance.
In order to solve the above technical problem, the present invention provides concrete scheme it is as follows: it is a kind of utilize electric signal testing air permeable
The method of paper performance, which comprises
The transmission of sound signals delay time that S1, record acoustical generator are generated to receiver distance, and using this time as when benchmark
Between T1；
S2, air-permeable paper is placed between acoustical generator and receiver, record acoustical generator is passed to the voice signal that receiver distance generates
Defeated delay time, and using this time as delay time T2；
S3, the performance that air-permeable paper is judged by the delay inequality of computation delay time T2 and fiducial time T1.
Preferably, acoustical generator sounding is driven by electric signal in the step S1 and step S2, receiver is voice signal
It is converted into that fiducial time T1 and delay time T2 is calculated to bilateral oscillograph after electric signal.
Preferably, the voice signal that acoustical generator issues in the step S1 and step S2 is identical, it is ensured that the standard of test result
True property.
Preferably, further include following procedure before the step S1: the sound frequency of needs is set on signal generator
And amplitude is converted the electrical signal to by amplifier transfer to acoustical generator to be transferred to receiver after voice signal again.
Preferably, acoustical generator being equidistant to receiver in the step S1 and step S2, it is ensured that test result
Accuracy.
The present invention also provides a kind of device using electric signal testing air permeable paper performance, including acoustical generator, receiver, with
And the bilateral oscillograph being electrically connected with receiver.
Preferably, described device further include signal generator, the amplifier that is connect with signal generator, the amplifier electricity
Property connection acoustical generator.
Preferably, the acoustical generator be loudspeaker, artificial mouth or buzzer, acoustical generator selection can sounding device, and
Loudspeaker, artificial mouth or buzzer are all the materials for being easier to obtain, and are suitable for test and use.
Preferably, the receiver is moving-coil sound head, electret sound head or silicon miaow, and there is acoustic-electric to convert function for receiver selection
The device of energy, moving-coil sound head, electret sound head or silicon miaow are all the materials for being easier to obtain, and are suitable for test and use.
Preferably, the quantity of the receiver is two, can test to have obtained air-permeable paper simultaneously and not have air-permeable paper feelings
Transmission of sound signals delay time under condition saves the testing time.
Compared with prior art, the beneficial effects of the present invention are: the present invention is using electric signal come the property of testing air permeable paper
Can, analysis is calculated by bilateral oscillograph and obtains delay inequality, so that judgement obtains the gas permeability of air-permeable paper, testing procedure is simple,
It is at low cost, influenced by outside environmental elements small, test data is accurate.
Detailed description of the invention
Fig. 1 is the specific method flow chart of the embodiment of the present invention one；
Fig. 2 is air-permeable paper model and delay relational graph；
Fig. 3 is the device overall structure figure of the embodiment of the present invention two；
Fig. 4 is the device overall structure block diagram of the embodiment of the present invention three；
Wherein, 1 is acoustical generator；2 be receiver；3 be bilateral oscillograph；4 be signal generator；5 be amplifier.
Specific embodiment
For the technical solution that the present invention will be described in detail, below in conjunction with the attached drawing of the embodiment of the present invention, to of the invention real
The technical solution for applying example carries out clear, complete description.Obviously, described embodiment is a part of the embodiments of the present invention,
Instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art are without creativeness
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of labour.
Embodiment one:
Fig. 1 is please referred to, a kind of method using electric signal testing air permeable paper performance, including S1, record hair are present embodiments provided
The transmission of sound signals delay time that sound device is generated to receiver distance, and using this time as fiducial time T1；S2, in sounding
Air-permeable paper is placed between device and receiver, records the transmission of sound signals delay time that acoustical generator is generated to receiver distance, and
Using this time as delay time T2；S3, air-permeable paper is judged by the delay inequality of computation delay time T2 and fiducial time T1
Performance.
The present embodiment in the specific implementation process, is first recorded in the case where no air-permeable paper acoustical generator to receiver distance
The transmission of sound signals delay time of generation, and using the time as fiducial time T1, re-test is recorded in the feelings of air-permeable paper
The transmission of sound signals delay time that acoustical generator is generated to receiver distance under condition, and using the time as delay time T2, then
Judge the performance of air-permeable paper, by the delay inequality of computation delay time T2 and fiducial time T1 to ensure the accurate of test result
Property, acoustical generator being equidistant to receiver in step S1 and step S2.
Specifically, driving acoustical generator sounding by electric signal in step S1 and step S2, receiver converts voice signal
Fiducial time T1 and delay time T2 is calculated to bilateral oscillograph at after electric signal, wherein send out in step S1 and step S2
The voice signal that sound device issues is identical, can so ensure the accuracy of test result.
Further include following procedure before step S1: the sound frequency and amplitude of needs are set on signal generator, passes through
It crosses amplifier and is transferred to acoustical generator, convert the electrical signal to be transferred to receiver after voice signal again, driven using electric signal
Dynamic sounding can adjust the sound frequency and amplitude, flexibility and strong operability that setting needs independently according to testing requirement.
As shown in Fig. 2, being the air-permeable paper of different model in the 4 of the present embodiment test, respectively Y1, Y2, Y3 and Y4, test
Obtain that its different gas permeability of model is also different, the delay inequality tested such as the air-permeable paper of model Y1 is 1us, model Y2's
The delay inequality that air-permeable paper is tested is 2us, and the delay inequality that the air-permeable paper of model Y3 is tested is 4us, model Y4's
The delay inequality that air-permeable paper is tested is 6us, and model Y1 or Y2 can be selected when needing the air-permeable paper of good permeability, when need
When wanting the weaker air-permeable paper of gas permeability, that is, model Y3 or Y4 can be selected.
Embodiment two:
Referring to figure 3., present embodiments provide a kind of device using electric signal testing air permeable paper performance, including acoustical generator, by
Acoustical generator and receiver are placed in not by words device and the bilateral oscillograph being electrically connected with receiver in the specific implementation process
It opposes and places in the environment of being interfered by external sound, for acoustical generator by voice signal by space propagation to receiver, receiver will
Voice signal, which is converted into after electric signal, to be entered bilateral oscillograph and is analyzed, and fiducial time T1 is obtained；Then in acoustical generator
Air-permeable paper to be tested is placed between receiver, similarly, resets voice signal same as described above, and acoustical generator is by voice signal
By space propagation, receiver is arrived again after air-permeable paper, voice signal is converted into electric signal and enters bilateral by receiver
Oscillograph is analyzed, and the time obtained at this time is delay time T2, passes through prolonging for computation delay time T2 and fiducial time T1
The time difference can determine whether to obtain the permeability of air-permeable paper.
For the flexibility and operability for improving operation, which further includes signal generator, connect with signal generator
Amplifier, amplifier be electrically connected acoustical generator, before being tested, can pass through signal generator adjust required for sound audio
Rate and amplitude meet different testing requirements.
Wherein, acoustical generator can select loudspeaker, artificial mouth or buzzer, using buzzer, buzzing in the present embodiment
Device need operating current it is small, power is also small, and it is at low cost be easy to get, be highly suitable for test use；Receiver can select
The device with acoustic-electric conversion function is selected, such as moving-coil sound head, electret sound head or silicon miaow, what is selected in the present embodiment is silicon miaow,
It signal is made a sound by buzzer is transferred to silicon miaow voice signal is converted into electric signal and analyze.
Embodiment three:
Referring to figure 4., the present embodiment is similar to embodiment two, the difference is that, the quantity of the receiver in the present embodiment is
Two, two receivers are placed in the opposite of acoustical generator, two receivers are equal with the distance between acoustical generator, it is ensured that two
The size that a receiver receives the voice signal of acoustical generator is consistent with phase, improves the accuracy of test, two receivers point
It is not linked into channel 1 and channel 2 and the delay inequality for comparing them of bilateral oscillograph, is put between receiver and acoustical generator at one
Air-permeable paper is set, which is set as tested receiver, corresponding, another receiver is reference receiver, in bilateral
It can be seen that two receivers are with respect to the delay of sound in oscillograph, it is calculated analytically the sound that two receivers can be obtained
Delay inequality, so as to judge to obtain the gas permeability of air-permeable paper.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (10)
1. a kind of method using electric signal testing air permeable paper performance, which is characterized in that the described method includes:
The transmission of sound signals delay time that S1, record acoustical generator are generated to receiver distance, and using this time as when benchmark
Between T1；
S2, air-permeable paper is placed between acoustical generator and receiver, record acoustical generator is passed to the voice signal that receiver distance generates
Defeated delay time, and using this time as delay time T2；
S3, the performance that air-permeable paper is judged by the delay inequality of computation delay time T2 and fiducial time T1.
2. the method according to claim 1 using electric signal testing air permeable paper performance, which is characterized in that the step S1
Acoustical generator sounding is driven by electric signal in step S2, receiver is converted into after electric signal voice signal to bilateral oscillograph
Fiducial time T1 and delay time T2 is calculated.
3. the method according to claim 1 using electric signal testing air permeable paper performance, which is characterized in that the step S1
It is identical with the voice signal that acoustical generator in step S2 issues.
4. the method according to claim 1 using electric signal testing air permeable paper performance, which is characterized in that the step S1
Before further include following procedure: the sound frequency and amplitude of needs are set on signal generator, by amplifier transfer to hair
Sound device.
5. the method according to claim 1 using electric signal testing air permeable paper performance, it is characterised in that: the step S1
With being equidistant for the acoustical generator in step S2 to receiver.
6. a kind of device applied to the method for any of claims 1 or 2 using electric signal testing air permeable paper performance, feature
It is: including acoustical generator, receiver and the bilateral oscillograph being electrically connected with receiver.
7. device according to claim 6, it is characterised in that: described device further includes that signal generator and signal occur
The amplifier of device connection, the amplifier are electrically connected acoustical generator.
8. device according to claim 6, it is characterised in that: the acoustical generator is loudspeaker, artificial mouth or buzzer.
9. device according to claim 6, it is characterised in that: the receiver is moving-coil sound head, electret sound head or silicon
Miaow.
10. device according to claim 6, it is characterised in that: the quantity of the receiver is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295028.7A CN109270167B (en) | 2018-11-01 | 2018-11-01 | Method and device for testing performance of breathable paper by using electric signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811295028.7A CN109270167B (en) | 2018-11-01 | 2018-11-01 | Method and device for testing performance of breathable paper by using electric signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109270167A true CN109270167A (en) | 2019-01-25 |
| CN109270167B CN109270167B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811295028.7A Active CN109270167B (en) | 2018-11-01 | 2018-11-01 | Method and device for testing performance of breathable paper by using electric signals |
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| Country | Link |
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| CN (1) | CN109270167B (en) |
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|---|---|---|---|---|
| CN1133089A (en) * | 1993-10-22 | 1996-10-09 | 阿姆科尔有限公司 | Strength determination of sheet materials by ultrasonic testing |
| US5847281A (en) * | 1994-10-06 | 1998-12-08 | Ab Lorentzen & Wettre | System for measuring ultrasonically the elastic properties of a moving paper web |
| CN102375031A (en) * | 2011-09-16 | 2012-03-14 | 刘铁军 | Device and method for testing sound absorbing performance of material |
| CN102830174A (en) * | 2012-08-20 | 2012-12-19 | 湖北中烟工业有限责任公司 | Method for rapid identification of calcium carbonate content in reconstituted tobacco prepared by papermaking method |
| CN102830175A (en) * | 2012-08-20 | 2012-12-19 | 湖北中烟工业有限责任公司 | Detection method of dynamic imbibition performance of reconstituted tobacco substrate produced by papermaking method |
| CN206583853U (en) * | 2016-12-26 | 2017-10-24 | 珠海鑫联科技有限公司 | Acoustic absorptivity and oise insulation factor tester |
| CN207318419U (en) * | 2017-08-30 | 2018-05-04 | 郑州华美彩印纸品有限公司 | A kind of offset press ultrasonic wave Double-sheet detection device |
| CN208999360U (en) * | 2018-11-01 | 2019-06-18 | 广东得胜电子有限公司 | A kind of device using electric signal testing air permeable paper performance |
-
2018
- 2018-11-01 CN CN201811295028.7A patent/CN109270167B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133089A (en) * | 1993-10-22 | 1996-10-09 | 阿姆科尔有限公司 | Strength determination of sheet materials by ultrasonic testing |
| US5847281A (en) * | 1994-10-06 | 1998-12-08 | Ab Lorentzen & Wettre | System for measuring ultrasonically the elastic properties of a moving paper web |
| CN102375031A (en) * | 2011-09-16 | 2012-03-14 | 刘铁军 | Device and method for testing sound absorbing performance of material |
| CN102830174A (en) * | 2012-08-20 | 2012-12-19 | 湖北中烟工业有限责任公司 | Method for rapid identification of calcium carbonate content in reconstituted tobacco prepared by papermaking method |
| CN102830175A (en) * | 2012-08-20 | 2012-12-19 | 湖北中烟工业有限责任公司 | Detection method of dynamic imbibition performance of reconstituted tobacco substrate produced by papermaking method |
| CN206583853U (en) * | 2016-12-26 | 2017-10-24 | 珠海鑫联科技有限公司 | Acoustic absorptivity and oise insulation factor tester |
| CN207318419U (en) * | 2017-08-30 | 2018-05-04 | 郑州华美彩印纸品有限公司 | A kind of offset press ultrasonic wave Double-sheet detection device |
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