CN103027688A - Otoacoustic emission simulation and test system - Google Patents
Otoacoustic emission simulation and test system Download PDFInfo
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- CN103027688A CN103027688A CN2012105071610A CN201210507161A CN103027688A CN 103027688 A CN103027688 A CN 103027688A CN 2012105071610 A CN2012105071610 A CN 2012105071610A CN 201210507161 A CN201210507161 A CN 201210507161A CN 103027688 A CN103027688 A CN 103027688A
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Abstract
The invention belongs to the technical field of a medical audiological detection system, and particularly relates to an otoacoustic emission simulation and test system. A fixing buckle of an acoustic input port is connected with an interface of an input end of a 2cm<3> coupling cavity to form a cavity, an earphone bracket is fixedly arranged in the cavity, an interface of an output end of the 2cm<3> coupling cavity is in sealed connection with one end of an interface bracket by an O-shaped ring, the other end of the interface bracket is connected with an acoustic receiving and output part of a simulation electrical cochlea, and the acoustic receiving and output part of the simulation electrical cochlea is connected with an electric control part of the simulation electrical cochlea to form the simulation electrical cochlea. The otoacoustic emission simulation and test system has the advantages that the basic functions of the human cochlea can be restored, and the actual otoacoustic emission effect can be simulated; the completeness and the effectiveness of the outputted otoacoustic emission signals can be ensured; and the size of a probe of the simulation electrical cochlea is the same as the size of a standard microphone for measuring, so on the premise of not damaging the characteristics of artificial ears, the direct replacement is realized according to requirements.
Description
Technical field
The invention belongs to medical science Audiometry systems technology field, particularly a kind of otoacoustic emission emulation test system.
Background technology
Otoacoustic emission is that cochlea initiatively produces (also can be led to acousta induction by instrument, use brainstem auditory evoked) very faint acoustic energy.Otoacoustic emission is the objective audiometric inspection method that begins from infant, after giving faint stimulus signal of cochlea, detects this faint acoustic energy with probe, transceiver etc., reaches the purpose of hearing test.
During present otoacoustic emission detects, because the acoustical signal of otoacoustic emission is very faint, be buried in easily in the environment noise, the signal that the otoacoustic emission instrument detects is also less.When detecting with calibration to the otoacoustic emission instrument, be difficult to simulate the otoacoustic emission that people's ear sends, common calibration instrument mainly is divided into two parts: the sensitivity of detecting instrument amplifier and accuracy, the calibration of the sound pressure level of the otoacoustic emission stimulus signal that sends.To the detection of signal detection ability, directly illustrative system can not detect the weak acoustic signal of otoacoustic emission accurately, usually relies on clinical trial result's statistics to be revised.
Summary of the invention
The present invention is for overcoming the deficiencies in the prior art, a kind of otoacoustic emission emulation test system is provided, after the artificial electronic cochlea detects the stimulation acoustical signal that the otoacoustic emission instrument sends by electronically in this system, simulated environment noise and periodicity otoacoustic emission signal are exported, the signal that the signal that collects by otoacoustic emission instrument relatively and artificial electronic cochlea send, thereby whether checking otoacoustic emission instrument can detect the otoacoustic emission signal, reaches the purpose to otoacoustic emission instrument testing calibration.
A kind of otoacoustic emission emulation test system, its vocal input mouth clip and 2 cm
3The input end interface of coupled cavity links to each other, and the two forms a cavity, and earphone bracket is fixedly mounted in the described cavity; 2 cm
3The outfan interface of coupled cavity and an end of interface cradle are tightly connected by O type circle; The other end of interface cradle links to each other with output with the sound reception of artificial electronic cochlea; The sound reception of artificial electronic cochlea partly links to each other with artificial electronic cochlea electric interfaces with output, consists of the artificial electronic cochlea.
Described 2 cm
3Coupled cavity is the artificial ear that meets IEC 60318-5 standard, is used for calibrating.
The part that the sound reception of described artificial electronic cochlea and output are connected with interface cradle, its size and measurement are measure-alike with 1/2 inch standard microphone, the sound reception of artificial electronic cochlea and output and artificial electronic cochlea electric interfaces partly combine, in artificial ear, exchange with 1/2 inch standard microphone with measurement, realize the purpose to the calibration of otoacoustic emission instrument.
Described 2 cm
3The outfan interface of coupled cavity is of a size of 1 inch, exchanges with 1 inch standard microphone with measurement.During test, the mounting interface support is not demarcated the otoacoustic emission instrument, then adopts 1 inch standard microphone, and namely the two is all applicable for 1/2 inch and 1 inch standard microphone in system, has versatility.
Described 2 cm
3The input end interface of coupled cavity is of a size of 1/2 inch.When earphone bracket is not installed by system, the part that system comes the sound reception of Calibration Simulation cochlear implant and output and the automatically controlled part of artificial electronic cochlea to combine with 1/2 inch standard microphone.
Described 2 cm
3Be fixedly mounted in the system frame after coupled cavity, interface cradle and the combination of artificial electronic cochlea audible segment.
The invention has the beneficial effects as follows:
1. the present invention can effectively utilize sound source modeling to produce faint periodicity otoacoustic emission signal and ambient noise signal, reduces the basic function of human cochlea, simulation actual ear acoustic emission effect.Meanwhile, the invention provides the periodically synchronous detection signal of otoacoustic emission signal, faint periodicity otoacoustic emission signal under the environmental noise is added up synchronously, guarantee otoacoustic emission Signal integrity and the effectiveness of output, to be used for the calibration to the otoacoustic emission instrument;
Artificial electronic cochlea of the present invention probe with measure measure-alikely with 1/2 inch standard microphone, can in the situation of failure simulation ear characteristic not, directly replace when needing.
Description of drawings
Fig. 1 is outside drawing of the present invention;
Fig. 2 is profile of the present invention;
Fig. 3 is exploded perspective illustration of the present invention;
Fig. 4 is workflow diagram of the present invention;
Number in the figure: 1-vocal input mouth clip; The 2-earphone bracket; The 3-input end interface; 4-2cm
3Coupled cavity; 5-outfan interface; The 6-interface cradle; The 7-system frame; The cochlea sound reception of 8-artificial electronic and output; 9-artificial electronic cochlea electric interfaces part.
The specific embodiment
The invention provides a kind of otoacoustic emission emulation test system, the present invention will be further described below in conjunction with the drawings and specific embodiments.
A kind of otoacoustic emission emulation test system, its vocal input mouth clip 1 and 2 cm
3The input end interface 3 of coupled cavity 4 links to each other, and the two forms 1 cavity, and earphone bracket 2 is fixedly mounted in the described cavity; 2 cm
3The outfan interface 5 of coupled cavity 4 is tightly connected by O type circle with an end of interface cradle 6; The other end of interface cradle 6 links to each other with output 8 with the sound reception of artificial electronic cochlea; The sound reception of artificial electronic cochlea links to each other with artificial electronic cochlea electric interfaces part 9 with output 8, consists of the artificial electronic cochlea.
Described 2 cm
3Coupled cavity 4 is used for calibrating for meeting the artificial ear of IEC 60318-5 standard.
The part that the sound reception of described artificial electronic cochlea and output 8 are connected with interface cradle 6, its size and measurement are measure-alike with 1/2 inch standard microphone, the sound reception of artificial electronic cochlea and output 8 combine with artificial electronic cochlea electric interfaces part 9, in artificial ear, exchange with 1/2 inch standard microphone with measurement, realize the purpose to the calibration of otoacoustic emission instrument.
Described 2 cm
3The outfan interface 5 of coupled cavity 4 is of a size of 1 inch, exchanges with 1 inch standard microphone with measurement.During test, the mounting interface support 6, and the otoacoustic emission instrument is demarcated, and then adopt 1 inch standard microphone, and namely the two is all applicable for 1/2 inch and 1 inch standard microphone in system, has versatility.
Described 2 cm
3The input end interface 3 of coupled cavity 4 is of a size of 1/2 inch.When earphone bracket 2 is not installed by system, the part that system comes the sound reception of Calibration Simulation cochlear implant and output 8 and artificial electronic cochlea electric interfaces part 9 to combine with 1/2 inch standard microphone.
Described 2 cm
3Be fixedly mounted in the system frame 7 after coupled cavity 4, interface cradle 6 and 8 combinations of artificial electronic cochlea audible segment.
Vocal input mouth clip 1 of the present invention and 2 cm
3The input end interface 3 of coupled cavity 4 connects, to reach the effect that comprises earphone bracket 2 in the cavity that both are consisted of of fixing; Earphone bracket 2 can be changed according to the earphone model difference that reality adopts, and is used for the stimulation sound of input otoacoustic emission instrument, to carry out next step testing.
2 cm that adopt among the present invention
3Coupled cavity 4 is the artificial ears that meet IEC 60318-5 standard, and interface cradle 6 size conforms canonical measures are with the size of microphone, connects behind the artificial electronic cochlea to finish measurement in the situation of failure simulation ear characteristic not.
2 cm
3The outfan interface 5 of coupled cavity 4 is connected with interface cradle 6; The artificial electronic cochlea is connected with interface cradle 6, and realizes sealing by O type circle, the stimulation acoustic echo that sends for detection of the artificial electronic cochlea.
After system's each several part combination is finished, by 2 cm
3The input end interface 3 of coupled cavity 4 and 2 cm
3The outfan interface 5 of coupled cavity 4 is installed on the interface cradle 6, the operation when being convenient for measuring.
Fig. 3 is workflow diagram of the present invention, and the otoacoustic emission instrument is passed to 2 cm by In-Ear Headphones after sending and stimulating acoustical signal
3Coupled cavity 4 interior rear probes by the artificial electronic cochlea receive, the compound voice signal of the small and weak signal of the sound reception of driving simulation cochlear implant and output 8 generation stimulation sound otoacoustic emission echoes and the white noise of simulated environment noise, for carrying out the calibration of otoacoustic emission instrument, the periodicity otoacoustic emission signal that the sound reception of artificial electronic cochlea and output 8 send can spread out of and record.
In the time of the sound reception of artificial electronic cochlea and output 8 output otoacoustic emission periodic signal, can produce synchronous detection signal, integrating instrument begins the otoacoustic emission cyclical signal that the detection simulation cochlear implant sends after detecting this synchronous detection signal synchronously, whenever detect a synchronous detection signal and just gather the otoacoustic emission cyclical signal one time, the otoacoustic emission cyclical signal is through sensor, becoming the signal of telecommunication after the modem processes is passed in the synchronous integrating instrument, the otoacoustic emission that the Output simulation cochlear implant sends after synchronous accumulated process, treated signal can effectively be removed the white noise in the environment, guarantee the completeness and efficiency of output signal, be used for carrying out the calibration of system.
Claims (6)
1. an otoacoustic emission emulation test system is characterized in that: vocal input mouth clip (1) and 2 cm
3The input end interface (3) of coupled cavity (4) links to each other, and the two forms a cavity, and earphone bracket (2) is fixedly mounted in the described cavity; 2 cm
3The outfan interface (5) of coupled cavity (4) is tightly connected by O type circle with an end of interface cradle (6); The other end of interface cradle (6) links to each other with output (8) with the sound reception of artificial electronic cochlea; The sound reception of artificial electronic cochlea links to each other with artificial electronic cochlea electric interfaces part (9) with output (8), consists of the artificial electronic cochlea.
2. a kind of otoacoustic emission emulation test system according to claim 1 is characterized in that: described 2 cm
3Coupled cavity (4) is used for calibrating for meeting the artificial ear of IEC 60318-5 standard.
3. a kind of otoacoustic emission emulation test system according to claim 1, it is characterized in that: the part that the sound reception of described artificial electronic cochlea and output (8) are connected with interface cradle (6), its size and measurement are measure-alike with 1/2 inch standard microphone, the sound reception of artificial electronic cochlea and output (8) combine with artificial electronic cochlea electric interfaces part (9), in artificial ear, exchange with 1/2 inch standard microphone with measurement, realize the purpose to the calibration of otoacoustic emission instrument.
4. a kind of otoacoustic emission emulation test system according to claim 1 is characterized in that: described 2 cm
3The outfan interface (5) of coupled cavity (4) is of a size of 1 inch, exchanges with 1 inch standard microphone with measurement.
5. a kind of otoacoustic emission emulation test system according to claim 1 is characterized in that: described 2 cm
3The input end interface (3) of coupled cavity (4) is of a size of 1/2 inch.
6. a kind of otoacoustic emission emulation test system according to claim 1 is characterized in that: described 2 cm
3Be fixedly mounted in the system frame (7) after coupled cavity (4), interface cradle (6) and artificial electronic cochlea audible segment (8) combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507161.0A CN103027688B (en) | 2012-11-06 | 2012-11-30 | Otoacoustic emission simulation and test system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2012/001495 | 2012-11-06 | ||
| PCT/CN2012/001495 WO2014071537A1 (en) | 2012-11-06 | 2012-11-06 | Otoacoustic emission simulation test system |
| CN201210507161.0A CN103027688B (en) | 2012-11-06 | 2012-11-30 | Otoacoustic emission simulation and test system |
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| Publication Number | Publication Date |
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| CN103027688A true CN103027688A (en) | 2013-04-10 |
| CN103027688B CN103027688B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210507161.0A Expired - Fee Related CN103027688B (en) | 2012-11-06 | 2012-11-30 | Otoacoustic emission simulation and test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104856688A (en) * | 2015-03-18 | 2015-08-26 | 中国计量科学研究院 | Acoustic coupling cavity used for calibration of otoacoustic emission measuring instrument |
| CN107135457A (en) * | 2017-05-23 | 2017-09-05 | 杭州兆华电子有限公司 | A kind of headphone test device |
| CN114374923A (en) * | 2021-12-30 | 2022-04-19 | 江苏鸿盾智能装备有限公司 | Acoustic coupler for simulating acoustic characteristics of human ear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200980674Y (en) * | 2006-10-16 | 2007-11-28 | 河南迈松医用设备制造有限公司 | Ear sound emitting detecting probe |
| CN101466062A (en) * | 2008-12-31 | 2009-06-24 | 清华大学深圳研究生院 | Calibration method and apparatus for ear plug type transducer for ear acoustic emission audition detection |
| DE102010025362A1 (en) * | 2010-06-28 | 2011-12-29 | Path Medical Gmbh | Measurement device for measuring otoacoustic emissions from cochlea in ear of person, has ear probe comprising display device, which displays correct position of probe in ear before, at beginning and/or during measurement |
-
2012
- 2012-11-30 CN CN201210507161.0A patent/CN103027688B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200980674Y (en) * | 2006-10-16 | 2007-11-28 | 河南迈松医用设备制造有限公司 | Ear sound emitting detecting probe |
| CN101466062A (en) * | 2008-12-31 | 2009-06-24 | 清华大学深圳研究生院 | Calibration method and apparatus for ear plug type transducer for ear acoustic emission audition detection |
| DE102010025362A1 (en) * | 2010-06-28 | 2011-12-29 | Path Medical Gmbh | Measurement device for measuring otoacoustic emissions from cochlea in ear of person, has ear probe comprising display device, which displays correct position of probe in ear before, at beginning and/or during measurement |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104856688A (en) * | 2015-03-18 | 2015-08-26 | 中国计量科学研究院 | Acoustic coupling cavity used for calibration of otoacoustic emission measuring instrument |
| CN107135457A (en) * | 2017-05-23 | 2017-09-05 | 杭州兆华电子有限公司 | A kind of headphone test device |
| CN107135457B (en) * | 2017-05-23 | 2023-01-31 | 杭州兆华电子股份有限公司 | Headset testing device |
| CN114374923A (en) * | 2021-12-30 | 2022-04-19 | 江苏鸿盾智能装备有限公司 | Acoustic coupler for simulating acoustic characteristics of human ear |
| CN114374923B (en) * | 2021-12-30 | 2024-03-19 | 江苏鸿盾智能装备有限公司 | Acoustic coupler for simulating acoustic characteristics of human ears |
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| CN103027688B (en) | 2014-08-06 |
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Granted publication date: 20140806 Termination date: 20181130 |