CN103004624B - Animal noise stimulation box - Google Patents
Animal noise stimulation box Download PDFInfo
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- CN103004624B CN103004624B CN201210525099.8A CN201210525099A CN103004624B CN 103004624 B CN103004624 B CN 103004624B CN 201210525099 A CN201210525099 A CN 201210525099A CN 103004624 B CN103004624 B CN 103004624B
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Abstract
The invention relates to a noise stimulation box, which has a main function of providing a noise giving environment for experimental animals during noise stimulation. The noise stimulation box is implemented by a lightweight sound insulation component and a double-layer composite sound insulation structure in order to improve the sound insulation performance and meet the special requirements of the noise simulation box on ventilation, fireproofness, moisture proofness, corrosion resistance and the like. The noise stimulation box disclosed by the invention furthest ensures the strength stability and the minimum attenuation after a noise signal of a signal generator is output, furthest meets the requirements on normalization of noise stimulation models and provides an effective environment foundation for establishment of the noise-induced deaf animal models. The noise stimulation box relates to the field of scientific research of the experimental animals, sound wave barrier sound-absorbing materials, physical ventilation and the like and is suitable for establishment of various noise-induced hearing loss animal models and sound stimulation models as well as behavior surveillance of the experimental animals under the noise exposure.
Description
Technical field
The present invention relates to the behavior monitoring of laboratory animal under field, the foundation that is applicable to various noise induced hearing loss animal models and sound stimulation model and the Noise Exposure such as Laboratory Animal Science research, sound wave obstruct sound-absorbing material, physics ventilation.
Background technology
Noise deafness clinical with basic research in, need to carry out zoopery, to study subject as: cavy, rat, mouse etc. carry out after sense of hearing electricity physiological evaluation, according to different experiment purposes, to it, adopt different noises to stimulate (acoustical signal requirement and assessment), study subject (or give respective handling after) carried out the quantitative and qualitative detection of index of correlation and observed, thereby obtaining relatively objective statistics thereafter.The foundation of experimental animal model in the past, carry out at the noise stimulus outdoor scene of being everlasting, such as: the shock wave while utilizing aircraft engine sound, Canon launching, firecrackers sound etc., its defect is cannot accurate evaluation noise characteristic, animal model is built poor repeatability, animal is difficult to timely detection, time-consuming, and experiment fees used is expensive.In order to stimulate the variation of the aspects such as the corresponding physiology (electric physiology) produce, pathology, nervous system to make scientific analysis and judgement to noise, stable output signal quantification, Real-Time Monitoring and Scientific evaluation are particularly important.White noise or high strength pure tone that noise case of the present invention can noise stimulus signal acoustical generator occur, be enclosed in certain space, reduces to greatest extent the decay of this sound stimulation, sound wave, improves its validity.
It is that noise while providing noise to stimulate to laboratory animal is to acoustic environment that noise of the present invention stimulates the major function of case.In order to improve sound insulation value, adopt light-duty partiting sound member and two-layer compound sound insulating structure to realize.Meet above-mentioned noise stimulates ventilation, fire prevention, the protection against the tide of case, the specific (special) requirements such as anticorrosion simultaneously.Noise of the present invention stimulates case to guarantee to greatest extent the stable and minimal attenuation of the rear intensity of noise signal output of signal generator.Farthest having met the requirement that standard noise is stimulated to model, is the foundation of noise deafness animal model, and effective environmental basis is provided.
Summary of the invention
It is double-decker that animal noise of the present invention stimulates case, and the bottom between ectonexine is mounted with on vibration isolator, forms floating building structure, to eliminate the low frequency solid-borne sound transmission transmitting by building structure.Between the internal layer sound insulating structure surrounding of described noise stimulation case and outer sound insulating structure, have gap more than 50mm, top portion ventilation machine was and is flexible coupling with being connected of ventilating noise-elimination pipeline, like this, can avoid forming overhead speaker.Vibration isolator selects self intrinsic frequency below 10Hz, eliminates the low frequency solid-borne sound transmission transmitting by building structure.
It is double-deck 100mm steel construction sound insulation absorbent treatment that described noise stimulates case wall structure, and this structure has the oise insulation factor of 60-70dB (A).
Described noise stimulates the ectonexine of case all to have soundproof door, and twice soundproof door is designed to " sound lock " formula double-layer sealing structure, and there is the oise insulation factor of 60-70dB (A) at such structure two sects.
On two sects, all have sound insulation observation window, every observation window is and adopts vacuum sound insulation window setting technique, and such structure has the oise insulation factor of 60-70dB (A).
The design of relevant ventilation, need stimulate the top of case and the diagonal position of side at described noise, installs respectively noise elimination air channel and ventilation blower additional, to eliminate air power noise and mechanical noise, the junction in ventilation blower and noise elimination air channel, all needs to be flexible coupling, the quadratic noise causing to eliminate vibration.Described noise stimulates case inlet and outlet wind speed general control below 1.0m/s.
(1) ventilating noise-elimination design
Ventilating noise-elimination adopts impedance silencer, and its sound deadening capacity can calculate by following formula:
ΔL＝Φ(α)·C·h/S
In formula: the extinction coefficient (relevant with material used) of Φ (α)-efficient resistance noise reduction sheet;
C, S-is respectively girth and the area of section of silencing channel;
Effective noise elimination length of h-silencing channel.
Airduct is connected front portion with main frame and adds muffler; Equipment Foundations and pipeline connect all does shock insulation processing.
Coordinate insulation works to do corresponding noise elimination noise reduction at inlet and outlet processes simultaneously;
(2) design of ventilation wind speed
Wind speed size is the major reason that determines wind-force regenerated noise (silencer inefficacy), and in order to control wind-force regenerated noise, within the specific limits, in this engineering, wind speed must not surpass 1.0m/s to the speed control system of must keeping watch.
Partiting sound member should, in wider frequency range, have higher oise insulation factor.Most partiting sound members all wish it is the member that light weight, oise insulation factor are high.If use steel construction sound insulationg board, high frequency acoustic capacitance is easily every falling, and medium and low frequency sound difficulty every, therefore need to wait measure combine with sound absorption, improve its sound-insulation capability.What we taked is clad steel sound-insulating structure, and described noise stimulates the sidewall of case and bottom surface, top to be the cavity that steel plate is made, and steel plate is electrostatic spraying inside and outside, fills out and rush porous fiber sound-absorbing material in cavity, and its average sound absorption coefficient is greater than 0.50.The airtight sound that do not leak in each member junction, edge joint position has sealing strip.Meet described noise simultaneously and stimulate the specific (special) requirements such as the fire prevention of case, protection against the tide, anticorrosion.
Main material adopts the materials such as cold-rolled steel sheet, galvanized steel plain sheet, damping sheet, Sound-proof material, perforated sound-absorbing plate.
The high-quality defening effect of 60dB given that the pure noiseless sound of zoopery stimulates to acoustic environment, guarantee to greatest extent the signal output of signal generator, farthest having met the foundation that standard sound is stimulated to model, is the reliability of animal experimental data, and validity provides environmental basis.
It is 1400mm that described noise stimulates case total height, very suitable being placed on operating table surface or desktop, and handled easily personnel observe.Described noise stimulates case to divide top and the bottom, and top is high-power audio amplifier, built-in four loudspeakers.Bottom is animal experiment space, and cabinet wall both sides are provided with to sound sensor, video frequency pick-up head.Except handled easily personnel observe, the setting of camera has more met the Real Time Observation of operating personnel to animal behavior.In addition, described noise stimulates all adjustings of case all can pass through computation, convenient, quick, accurately.
The described noise of high oise insulation factor stimulates case environment, adds high performance signal generator, and for the foundation of animal model provides reliable assurance, the accurate operation of calculator, allows data science more, reliable, has greatly increased the repeatability that animal model is built.
The present invention stimulates case to acoustic environment by the described noise of high oise insulation factor, high performance signal generator, accurately computer operation, digital video transmits clearly, has met operating personnel's real-time monitoring, Real Time Observation, real time record, real-time analysis, has improved operating efficiency greatly.
Described noise stimulates case dead size 800mm (wide) * 1200mm (height) * 500mm (deeply).Described noise stimulates in case, and its position function that has been well defined of top and the bottom, has sufficient space to expand.By the integration of calculator, for expansion from now on provides without as far as possible.
Accompanying drawing explanation
Fig. 1: animal noise stimulates case double-decker figure
Fig. 2: animal noise stimulates the double-deck 100mm steel construction sound insulation absorbent treatment schematic diagram of case
Fig. 3: animal noise stimulates case sound insulation light inlet window profile schematic diagram
Fig. 4: ventilating noise-elimination design principle curve map
Fig. 5: animal noise stimulates case design drawing
Fig. 6: animal noise stimulates case three-view diagram
Fig. 7: animal noise stimulates case design sketch
Embodiment
Describing animal noise of the present invention below in detail stimulates the structure and composition of case.
It is double-decker that animal noise of the present invention stimulates case, and the bottom between ectonexine is mounted with on vibration isolator, forms floating building structure, to eliminate the low frequency solid-borne sound transmission transmitting by building structure.Between the internal layer sound insulating structure surrounding of described noise stimulation case and outer sound insulating structure, have gap more than 50mm, top portion ventilation machine was and is flexible coupling with being connected of ventilating noise-elimination pipeline, like this, can avoid forming overhead speaker.Vibration isolator selects self intrinsic frequency below 10Hz, eliminates the low frequency solid-borne sound transmission transmitting by building structure.
It is double-deck 100mm steel construction sound insulation absorbent treatment that described noise stimulates case wall structure, and this structure has the oise insulation factor of 60-70dB (A).
Described noise stimulates the ectonexine of case all to have soundproof door, and twice soundproof door is designed to " sound lock " formula double-layer sealing structure, and there is the oise insulation factor of 60-70dB (A) at such structure two sects.
On two sects, all have sound insulation observation window, every observation window is and adopts vacuum sound insulation window setting technique, and such structure has the oise insulation factor of 60-70dB (A).
The design of relevant ventilation, need stimulate the top of case and the diagonal position of side at described noise, installs respectively noise elimination air channel and ventilation blower additional, to eliminate air power noise and mechanical noise, the junction in ventilation blower and noise elimination air channel, all needs to be flexible coupling, the quadratic noise causing to eliminate vibration.Described noise stimulates case inlet and outlet wind speed general control below 1.0m/s.
(1) ventilating noise-elimination design
Ventilating noise-elimination adopts impedance silencer, and its sound deadening capacity can calculate by following formula:
ΔL＝Φ(α)·C·h/S
In formula: the extinction coefficient (relevant with material used) of Φ (α)-efficient resistance noise reduction sheet;
C, S-is respectively girth and the area of section of silencing channel;
Effective noise elimination length of h-silencing channel.
Airduct is connected front portion with main frame and adds muffler; Equipment Foundations and pipeline connect all does shock insulation processing.
Coordinate insulation works to do corresponding noise elimination noise reduction at inlet and outlet processes simultaneously;
(2) design of ventilation wind speed
Wind speed size is the major reason that determines wind-force regenerated noise (silencer inefficacy), and in order to control wind-force regenerated noise, within the specific limits, in this engineering, wind speed must not surpass 1.0m/s to the speed control system of must keeping watch.
Partiting sound member should, in wider frequency range, have higher oise insulation factor.Most partiting sound members all wish it is the member that light weight, oise insulation factor are high.If use steel construction sound insulationg board, high frequency acoustic capacitance is easily every falling, and medium and low frequency sound difficulty every, therefore need to wait measure combine with sound absorption, improve its sound-insulation capability.What we taked is clad steel sound-insulating structure, and described noise stimulates the sidewall of case and bottom surface, top to be the cavity that steel plate is made, and steel plate is electrostatic spraying inside and outside, fills out and rush porous fiber sound-absorbing material in cavity, and its average sound absorption coefficient is greater than 0.50.The airtight sound that do not leak in each member junction, edge joint position has sealing strip.Meet described noise simultaneously and stimulate the specific (special) requirements such as the fire prevention of case, protection against the tide, anticorrosion.
Main material adopts the materials such as cold-rolled steel sheet, galvanized steel plain sheet, damping sheet, Sound-proof material, perforated sound-absorbing plate.
The high-quality defening effect of 60dB given that the pure noiseless sound of zoopery stimulates to acoustic environment, guarantee to greatest extent the signal output of signal generator, farthest having met the foundation that standard sound is stimulated to model, is the reliability of animal experimental data, and validity provides environmental basis.
It is 1400mm that described noise stimulates case total height, very suitable being placed on operating table surface or desktop, and handled easily personnel observe.Described noise stimulates case to divide top and the bottom, and top is high-power audio amplifier, built-in four loudspeakers.Bottom is animal experiment space, and cabinet wall both sides are provided with to sound sensor, video frequency pick-up head.Except handled easily personnel observe, the setting of camera has more met the Real Time Observation of operating personnel to animal behavior.In addition, described noise stimulates all adjustings of case all can pass through computation, convenient, quick, accurately.
The described noise of high oise insulation factor stimulates case environment, adds high performance signal generator, and for the foundation of animal model provides reliable assurance, the accurate operation of calculator, allows data science more, reliable, has greatly increased the repeatability that animal model is built.
The present invention stimulates case to acoustic environment by the described noise of high oise insulation factor, high performance signal generator, accurately computer operation, digital video transmits clearly, has met operating personnel's real-time monitoring, Real Time Observation, real time record, real-time analysis, has improved operating efficiency greatly.
Described noise stimulates case dead size 800mm (wide) * 1200mm (height) * 500mm (deeply).Described noise stimulates in case, and its position function that has been well defined of top and the bottom, has sufficient space to expand.By the integration of calculator, for expansion from now on provides without as far as possible.
Noise of the present invention stimulates the structure of case to comprise:
1, the high-power audio amplifier in upper part, built-in four loudspeakers (power is greater than 100 watts, impedance 8 Europe, sensitivity 120db).
2, bottom is animal experiment space, and cabinet wall both sides are provided with sound pickup sensor, video frequency pick-up head.
3, casing wall thickness 25CM, inside fills out acoustic material, and inside and outside intensity difference should be greater than 60 decibels.
4, the breather line of experimental box is answered hidden complications, and acoustical leakage is to minimum.
Claims (1)
1. an animal noise box, is characterized in that, this animal noise box is double-decker, and the bottom between ectonexine is mounted with vibration isolator, forms floating building structure, to eliminate the low frequency solid-borne sound transmission transmitting by building structure on it; Between described noise box internal layer sound insulating structure surrounding and outer sound insulating structure, have gap more than 50mm, top portion ventilation machine was and is flexible coupling with being connected of ventilating noise-elimination pipeline, can avoid forming like this overhead speaker; Vibration isolator is selected the material of self intrinsic frequency below 10Hz, eliminates the low frequency solid-borne sound transmission transmitting by building structure;
Described noise box wall structure is double-deck 100mm steel construction sound insulation absorbent treatment, and this structure has the oise insulation factor of 60-70dB (A);
The ectonexine of described noise box all has soundproof door, and twice soundproof door is designed to " sound lock " formula double-layer sealing structure, and there is the oise insulation factor of 60-70dB (A) at such structure two sects; On two described sects, all have sound insulation observation window, per pass observation window is and adopts vacuum sound insulation window setting technique, and such structure has the oise insulation factor of 60-70dB (A);
Described noise box also has the design of ventilation, need be at the diagonal position of top and the side of described noise box, install respectively noise elimination air channel and ventilation blower additional, to eliminate air power noise and mechanical noise, the junction in ventilation blower and noise elimination air channel, all need to be flexible coupling, the quadratic noise causing to eliminate vibration; Described noise box inlet and outlet wind speed general control is below 1.0m/s; Ventilating noise-elimination adopts impedance silencer, and its sound deadening capacity can calculate by following formula:
ΔL＝Φ(α)·C·h/S
In formula: the extinction coefficient of Φ (α)-efficient resistance noise reduction sheet;
C, the girth of S-silencing channel and area of section;
Effective noise elimination length of h-silencing channel;
Airduct is connected front portion with main frame and adds muffler; Equipment Foundations and pipeline connect all does shock insulation processing;
Coordinate insulation works to do corresponding noise elimination noise reduction at inlet and outlet processes simultaneously;
The material of partiting sound member is selected from cold-rolled steel sheet, galvanized steel plain sheet, damping sheet, Sound-proof material, perforated sound-absorbing plate;
Described noise box total height is 1400mm, minute top and the bottom, and top is high-power audio amplifier, built-in four loudspeakers; Bottom is animal experiment space, and cabinet wall both sides are provided with to sound sensor, video frequency pick-up head;
Described noise box dead size 800mm * 1200mm * 500mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525099.8A CN103004624B (en) | 2012-12-07 | 2012-12-07 | Animal noise stimulation box |
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|---|---|---|---|
| CN201210525099.8A CN103004624B (en) | 2012-12-07 | 2012-12-07 | Animal noise stimulation box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105075893B (en) * | 2015-06-18 | 2018-04-20 | 清华大学 | Experiment of Zoology device |
| CN109006514B (en) * | 2018-06-25 | 2021-07-06 | 张家港市德仁科教仪器设备有限公司 | Monitoring system of sleep record storehouse |
| KR102142434B1 (en) * | 2018-09-18 | 2020-08-07 | 아주대학교산학협력단 | Method for Manufacturing Animal Model with Stress Induced Hearing Loss |
| CN109496895A (en) * | 2018-10-29 | 2019-03-22 | 天津大学 | A kind of experimental box monitoring natural light and the lower bird behavior feature of artificial light interference |
| CN113834560B (en) * | 2020-06-08 | 2023-08-15 | 浙江大学 | Animal hearing evaluation detection device and method |
| CN115299404A (en) * | 2022-09-13 | 2022-11-08 | 山东大学齐鲁医院 | Device and method for constructing sudden death from epilepsy animal model |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201814767U (en) * | 2010-03-05 | 2011-05-04 | 徐平 | Aseptic isolator capable of regulating temperature and humidity |
| KR20120079374A (en) * | 2011-01-04 | 2012-07-12 | 이재학 | Housing device for animal |
| CN202496280U (en) * | 2012-03-14 | 2012-10-24 | 浙江大学城市学院 | Noise Y labyrinth device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201814767U (en) * | 2010-03-05 | 2011-05-04 | 徐平 | Aseptic isolator capable of regulating temperature and humidity |
| KR20120079374A (en) * | 2011-01-04 | 2012-07-12 | 이재학 | Housing device for animal |
| CN202496280U (en) * | 2012-03-14 | 2012-10-24 | 浙江大学城市学院 | Noise Y labyrinth device |
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