CN104856688B - Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration - Google Patents
Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration Download PDFInfo
- Publication number
- CN104856688B CN104856688B CN201510121187.5A CN201510121187A CN104856688B CN 104856688 B CN104856688 B CN 104856688B CN 201510121187 A CN201510121187 A CN 201510121187A CN 104856688 B CN104856688 B CN 104856688B
- Authority
- CN
- China
- Prior art keywords
- coupler
- hole
- otoacoustic emission
- emission measurements
- base
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of otoacoustic emission measurements instrument calibration acoustics coupler, including base, connector is fixed with base, coupler cavity is provided with inside connector, the roof of coupler cavity is provided with clear opening, coupling plug is fixed with clear opening, the side wall of coupler cavity is provided with small through hole, coupling plug and base are respectively equipped with through hole in the axial direction, the coupling between otoacoustic emission measurements instrument and its calibrating installation can be realized, the sonic stimulation unit and response measurement unit of otoacoustic emission measurements instrument can be calibrated simultaneously, and design meets IEC 60,318 5:The requirement of 2006 international standards.Design structure is ingenious, simple, general, sealing property is reliable.
Description
Technical field
Coupled the present invention relates to a kind of hearing measuring equipment, more particularly to a kind of otoacoustic emission measurements instrument calibration with acoustics
Chamber.
Background technology
Otoacoustic emission measurements instrument is the class objective audiometry instrument for carrying out hearing detection using otoacoustic emission principle.Otoacoustic emission is sent out
It is that one kind results from cochlea to penetrate (Oto-Acoustic Emission, OAE), and external auditory meatus is released into through auditory ossicular chain and eardrum conduction
Audio power.Otoacoustic emission originates from cochlea in the form of mechanical oscillation, and numerous studies show, this vibrational energy is from outer
The active movement of hair cell.This motion of external hair cell can be reaction spontaneous or to external irritant, and it is transported
The dynamic mechanically contact by coupled structure in Corti devices (spiral organ spiral organ) makes basilar memebrane occur various forms
Mechanical oscillation.This vibration is conducted in inner ear lymph in the form of pressure change, and promotes auditory ossicular chain by oval window
And vibrophone, finally cause the air vibration in external auditory meatus.Said process is generally the inverse process of the incoming inner ear of sound.Ear
There is inherent relation in the loss of the various features of sound emission and cochlear function and phonosensitive nerve hearing, turn into clinic at present
One most basic objective and lossless means of upper testing hearing.
The operation principle of otoacoustic emission measurements instrument is as shown in figure 1, otoacoustic emission measurements instrument sends Sound stimulat signal, subject
If hearing is normal, sound induction signal can be produced in duct, otoacoustic emission measurements instrument whether there is sound induction signal i.e. by measurement
It can determine whether the hearing level of subject.
Due to otoacoustic emission measurements instrument at a low price, objective, detection time it is short and to test environment it is less demanding the features such as, it is
Through as the underlying instrument in hearing detection.At present, otoacoustic emission audiometry is mainly used in physiology of hearing research, the sense of hearing
The detection of disease with terms of diagnosis, UNHS, as whether intact a kind of important of detection sense of hearing peripheral-system
Means.
In order to ensure the accurate of measurement result and uniformly, otoacoustic emission measurements instrument needs to carry out periodic calibration.Calibrating
, it is necessary to which the probe of otoacoustic emission measurements instrument is coupled with acoustics coupler or artificial ear in journey, now voice signal ability
It is enough to be received by microphone, and handled and analyzed by the acoustic analysis instrument of rear end.Therefore, acoustics coupler or artificial ear are in calibration
During have highly important status, it is indispensable.
The design of acoustics coupler or artificial ear has to comply with certain technical specification, just can guarantee that the unification of calibration result
With it is accurate.In the prior art, mainly there are two for the acoustics coupler or artificial ear of otoacoustic emission measurements instrument probe coupling
International standard：Acoustics coupler IEC 60318-5:2006Electroacoustics-Simulators of human head
and ear-Part 5:2cm3coupler for the measurement of hearing aids and earphones
coupled to the ear by means of ear inserts.；Artificial ear IEC60318-4:
2011Electroacoustics-Simulators of human head and ear-Part 4:occluded-ear
simulator for the measurement of earphones coupled to the ear by means of ear
But both acoustics coupling elements can only measure the Sound stimulat intensity of otoacoustic emission measurements instrument inserts..Otoacoustic emission can not be sent out
The performance for penetrating the response measurement unit of measuring instrument is estimated.
The content of the invention
It is an object of the invention to provide a kind of sonic stimulation unit and response measurement that can simultaneously to otoacoustic emission measurements instrument
The otoacoustic emission measurements instrument calibration acoustics coupler that unit is calibrated.
The purpose of the present invention is achieved through the following technical solutions：
The otoacoustic emission measurements instrument calibration of the present invention is used is fixed with connection on acoustics coupler, including base, the base
Coupler cavity is provided with inside body, the connector, the roof of the coupler cavity is provided with solid in clear opening, the clear opening
Surely coupling fills in, the side wall of the coupler cavity is provided with small through hole, and the coupling plug and base are respectively equipped with logical in the axial direction
Hole.
As seen from the above technical solution provided by the invention, otoacoustic emission measurements instrument school provided in an embodiment of the present invention
Mutatis mutandis acoustics coupler, is provided with coupler cavity, the top of coupler cavity due to being fixed with base inside connector, connector
Wall, which is provided with clear opening, clear opening, is fixed with coupling plug, and the side wall of coupler cavity is provided with small through hole, and coupling plug and base are in axle
Through hole is respectively equipped with upwards, the coupling between otoacoustic emission measurements instrument and its calibrating installation can be realized, can be simultaneously to otoacoustic emission
The sonic stimulation unit and response measurement unit of measuring instrument are calibrated, and design meets IEC 60318-5:2006 international standards
Requirement.Design structure is ingenious, simple, general, and sealing property is reliable.
Brief description of the drawings
Fig. 1 is the operation principle schematic diagram of otoacoustic emission measurements instrument；
Fig. 2 illustrates for the assembling structure of otoacoustic emission measurements instrument calibration acoustics coupler provided in an embodiment of the present invention
Figure；
Fig. 3 is to couple the cross section structure diagram of plug in the embodiment of the present invention；
Fig. 4 is the cross section structure diagram of connector in the embodiment of the present invention；
Fig. 5 is the cross section structure diagram of base in the embodiment of the present invention.
In figure：1st, coupling plug, 2, connector, 3, base.
Embodiment
The embodiment of the present invention will be described in further detail below.
Acoustics coupler is used in the otoacoustic emission measurements instrument calibration of the present invention, and its preferably embodiment is：
Including base, it is fixed with the base inside connector, the connector and is provided with coupler cavity, the coupling
The roof of chamber cavity, which is provided with clear opening, the clear opening, is fixed with coupling plug, and the side wall of the coupler cavity is provided with small logical
Hole, the coupling plug and base are respectively equipped with through hole in the axial direction.
The through hole of the coupling beyond the Great Wall is that the through hole on conical through-hole, the base is stepped hole.
The inner and outer wall of the coupling plug is respectively equipped with sealing ring.
The effective volume of the coupler cavity is 2000mm3+70mm3。
It is threadedly coupled between the connector and the base；
Provided with two through holes in described base, connection screw thread is provided with the through hole.
Through hole on the close-coupled of the coupling through hole beyond the Great Wall and otoacoustic emission measurements instrument probe, described base with
Microphone connection with preamplifier.
The present invention, which is provided with, is used for the acoustics coupler for the two microphones structure that otoacoustic emission measurements instrument is calibrated, including taper
Otoacoustic emission measurements instrument probe coupling unit, effective volume are 2000mm3+70mm3Cavity, two 1/4 inch of microphone sizes
Through hole and one regulation static pressure equilibrium aperture composition.The present invention realizes otoacoustic emission measurements instrument and its calibrating installation
Between coupling, the sonic stimulation unit and response measurement unit of otoacoustic emission measurements instrument can be calibrated simultaneously, the structure
The sonic stimulation signal from otoacoustic emission measurements instrument can be received, also simulation can be produced tested under the cooperation of rear end equipment
The response signal of person.And design meets IEC 60318-5:The requirement of 2006 international standards.Design structure is ingenious, simple, general,
Sealing property is reliable, with good coupling function.
Specific embodiment：
As shown in Fig. 2 the calibration of otoacoustic emission measurements instrument is main by coupling plug, connector and base group with acoustics coupler
Into.
As shown in figure 3, being provided with the coupling plug in conical through-hole, coupling plug has sealing ring, for being surveyed with otoacoustic emission
The coupling of instrument probe is measured, coupling is provided with sealing ring beyond the Great Wall, for the connection with connection body device shown in Fig. 4；Described connector
Interior top is provided with a clear opening, and it is 2000mm to be used for and couple in the middle of the connection of plug, connection provided with an effective volume3+
70mm3Cavity, be used for adjusting the small through hole of pressure sideways provided with one；It is transaudient with 1 inch provided with one below connector
Containing connection internal thread in device outside dimension identical clear opening, lower section clear opening, base one end shown in Fig. 5 is externally provided with connection
External screw thread, the connection internal thread connection of connector shown in the connection external screw thread and Fig. 4；
As shown in figure 5, provided with two clear openings in base, the through hole is interior to be provided with connection screw thread, and the connection screw thread is used for
With the connection of the microphone with preamplifier.The outside dimension size of the base and 1 inch of microphone outside dimension phase
Together, the internal diameter size of two clear openings is identical with 1/4 inch of microphone outside dimension in the base, and such structure design can
To ensure cavity volume 2000mm in connector described in Fig. 43+70mm3Effective volume, meet IEC 60318-5:2006 is international
The requirement of standard.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (4)
1. acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration, it is characterised in that including base, be fixed with the base
Coupler cavity is provided with inside connector, the connector, the roof of the coupler cavity is provided with clear opening, the clear opening
In be fixed with coupling plug, the side wall of the coupler cavity is provided with small through hole, and the coupling plug and base are set respectively in the axial direction
There is through hole；
The through hole of the coupling beyond the Great Wall is conical through-hole；
The base is provided with two through holes, and the through hole is that connection screw thread is provided with stepped hole, through hole；
Through hole on the close-coupled of the through hole and otoacoustic emission measurements instrument probe of the coupling beyond the Great Wall, described base is with carrying
The microphone connection of preamplifier.
2. acoustics coupler is used in otoacoustic emission measurements instrument calibration according to claim 1, it is characterised in that the coupling plug
Inner and outer wall be respectively equipped with sealing ring.
3. acoustics coupler is used in otoacoustic emission measurements instrument calibration according to claim 2, it is characterised in that the coupler
The effective volume of cavity is 2000mm3+70mm3。
4. acoustics coupler is used in otoacoustic emission measurements instrument calibration according to claim 2, it is characterised in that the connector
It is threadedly coupled between the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121187.5A CN104856688B (en) | 2015-03-18 | 2015-03-18 | Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121187.5A CN104856688B (en) | 2015-03-18 | 2015-03-18 | Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104856688A CN104856688A (en) | 2015-08-26 |
| CN104856688B true CN104856688B (en) | 2017-10-31 |
Family
ID=53903198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121187.5A Expired - Fee Related CN104856688B (en) | 2015-03-18 | 2015-03-18 | Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104856688B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954669A (en) * | 1997-04-03 | 1999-09-21 | Etymotic Research, Inc. | Hand-held hearing screener apparatus |
| US20110301494A1 (en) * | 2010-06-04 | 2011-12-08 | Hoest Morten | Ear coupler |
| CN103027688B (en) * | 2012-11-06 | 2014-08-06 | 北京交通大学 | Otoacoustic emission simulation and test system |
| CN103414978A (en) * | 2013-08-13 | 2013-11-27 | 北京航天计量测试技术研究所 | Sound intensity instrument frequency response calibrating device of acoustic coupler method |
-
2015
- 2015-03-18 CN CN201510121187.5A patent/CN104856688B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104856688A (en) | 2015-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101429425B1 (en) | Test Device and Test Method for Active Noise Reduction Headphone | |
| Allen et al. | Evaluation of human middle ear function via an acoustic power assessment. | |
| WO2003099121A8 (en) | System and methods for conducting multiple diagnostic hearing tests | |
| US20100092001A1 (en) | Coupler for open fitting hearing aid measurements | |
| JPWO2018216121A1 (en) | Earpad and earphone using the same | |
| Voss et al. | Middle ear pathology can affect the ear-canal sound pressure generated by audiologic earphones | |
| Zurbrügg et al. | Investigations on the physical factors influencing the ear canal occlusion effect caused by hearing aids | |
| CN201453277U (en) | Speech audiometry volume automatic calibrating device for audiometer | |
| JP6676258B2 (en) | Calibration method of measurement data in body sound measurement system | |
| CN104856688B (en) | Acoustics coupler is used in a kind of otoacoustic emission measurements instrument calibration | |
| CN103027688B (en) | Otoacoustic emission simulation and test system | |
| JP5563144B1 (en) | Ear probe and impedance audiometer | |
| CN111866692B (en) | Sound structure preparation method, sound structure, simulated human head and testing method using sound structure | |
| CN211831157U (en) | Sound field test loudness level experimental device in structure-sound coupling system | |
| CN103919559A (en) | Sound field audiometry signal output device | |
| HU224670B1 (en) | Acoustic coupling device and method of testing the hearing of a subject | |
| Ciorba et al. | Quantitative enhancement of speech in noise through a wireless equipped hearing aid | |
| CN205041402U (en) | Neonate's audiometer probe | |
| CN218783912U (en) | Testing arrangement of earphone of making an uproar falls | |
| CN209930508U (en) | Acoustic testing system suitable for artificial cochlea speech processor | |
| CN213606374U (en) | Hearing detection earplug | |
| Grason et al. | Sound level calibration: Microphones, ear simulators, couplers, and sound level meters | |
| CN220586460U (en) | Earphone wearing leakage test equipment | |
| CN217741911U (en) | High sound pressure testing device and system for microphone monomer | |
| CN210807652U (en) | Bone conduction type sound processor signal acquisition and analysis system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20180318 |