CN201453276U - Hearing detection device with noise meter - Google Patents
Hearing detection device with noise meter Download PDFInfo
- Publication number
- CN201453276U CN201453276U CN2009200794833U CN200920079483U CN201453276U CN 201453276 U CN201453276 U CN 201453276U CN 2009200794833 U CN2009200794833 U CN 2009200794833U CN 200920079483 U CN200920079483 U CN 200920079483U CN 201453276 U CN201453276 U CN 201453276U
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- detection equipment
- hearing detection
- noise
- hearing
- analysis device
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Abstract
The utility model discloses a hearing detection device capable of quantitatively analyzing environmental noise to confirm whether noise in a detecting environment meets detecting requirements or not. By arranging a noise meter device on the basis of a conventional hearing detection device and combining the noise meter device with the conventional hearing detection into a whole, the hearing detection device can detect and analyze the detecting environment extremely conveniently, and accordingly ensure accuracy and reliability of detecting results, wherein the noise meter device comprises a sensor (MIC), a preamplifier, a variable gain amplifier, a weighting network, an AD converter and a controller. Moreover, the hearing detection device has the advantages of simple structure, proper price and convenient use.
Description
Technical field
But this utility model relates to the hearing detection equipment of monitoring of environmental noise, can carry out quantitative analysis to environmental noise specifically and whether satisfy the hearing detection equipment that detects requirement with the noise of determining testing environment.
Background technology
Hearing detection equipment is the conventional equipment of hearing test, is widely used in clinical medicine.Audition detects and is different from other test, in order to guarantee the audition testing result accurately and reliably, except checkout equipment being had strict demand, audition is detected residing environment specific requirement is also arranged, environment noise particularly, the environment noise that surpasses certain limit can cause harmful effect to testing result; Have only environment noise to meet certain requirements, just can ensure the accuracy and the reliability of testing result.Environment noise is meant the summation of all noises of testing environment, and is different with testing goal according to test item, and some detection must be carried out in special-purpose audiometric room etc. has the environment of special requirement; The detection of considerable part is also arranged,, can in requiring relatively low environment, carry out such as audition examination detection etc.Now, at existing sophisticated method of the detection of the testing environment of special use and standard, but the apparatus expensive of its use, detection method is complicated, implements to acquire a certain degree of difficulty; The problem of reality is that a lot of medical institutions do not possess special-purpose testing environment simultaneously; And still do not have special method and instrument in the past for the detection of conventional environment, and only reliable testing staff's experience and subjective judgment are differentiated, its accuracy is very poor.
The utility model content
The purpose of this utility model is to provide a kind of can carry out whether quantitative analysis satisfies the detection requirement with the noise of determining testing environment hearing detection equipment to environmental noise.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
The hearing detection equipment of band noise apparatus, include traditional hearing detection equipment, traditional hearing detection equipment is provided with the noise analysis device, the noise analysis device is made of pick off (MIC), prime amplifier, variable gain amplifier, weighting network, AD converter, controller, pick off (MI C), prime amplifier, variable gain amplifier, weighting network, AD converter are linked in sequence, controller connects variable gain amplifier, weighting network, AD converter, and the noise analysis device combines with traditional hearing detection equipment.
Further technical scheme is, described traditional hearing detection equipment is a sonometer, be linked in sequence and constituted by signal source, hearing level controller, on and off switch, power amplifier, transducer, the controller of noise analysis device is connected with the signal source of sonometer, hearing level controller and on and off switch.
Further technical scheme is, described hearing detection equipment is the otoacoustic emission instrument.
Further technical scheme is, described hearing detection equipment is the auditory brainstem evoked potentuial measuring system.
Further technical scheme is, the controller of described noise analysis device can be the device that microprocessor or digital signal processor etc. have calculation function.
Further technical scheme is, the noise analysis device of the hearing detection equipment of aforementioned band noise apparatus can directly link to each other with hearing detection equipment, becomes a unified application system; Also can independently outside system, become an independent device.
Further technical scheme is, also is provided with communication interface on the described noise analysis device, and this interface can be serial communication interface, USB communication port etc.
Compared with prior art, noise apparatus device described in the utility model is installed in the hearing detection equipment, can be at any time, simply, easily testing environment is carried out real-time noise measuring, judge whether testing environment satisfies the environmental noise requirement that audition detects, thereby it is the assurance reliability of testing result, and simple in structure, cheap, easy to use.
Description of drawings
Fig. 1 is this utility model principle block diagram.
Fig. 2 is this utility model embodiment 1 block diagram.
Fig. 3 is this utility model embodiment 2 block diagrams.
The specific embodiment
Embodiment 1: as depicted in figs. 1 and 2, sonometer is provided with the noise apparatus device, the noise apparatus device is by mike, prime amplifier, variable gain amplifier, weighting network, the AD conversion, microprocessor, formations such as communication interface, the mike that serves as pick off is connected to prime amplifier, prime amplifier is connected with variable gain amplifier, the variable gain amplifier of microprocessor control simultaneously, weighting network is connected on the variable gain amplifier, the signal that weighting network is sent variable gain amplifier is weighted correction by human hearing characteristic, and revised signal sent into AD converter, microprocessor carries out algorithm process to the digital signal after the AD converter conversion, comprise digital filtering, the virtual value conversion, digital processings such as voltage transitions acoustic pressure, and send data to communication port and receive data by communication port; Sonometer is made of digital signal processor, digital to analog converter, signal amplifier, variable attenuator, on and off switch, power amplifier, earphone, microprocessor is connected to the digital signal processor and the variable attenuator of sonometer in the noise apparatus device, thereby realizes combining of noise analysis device and sonometer.
Embodiment 2: as shown in figures 1 and 3, compare with embodiment 1, difference is that the traditional hearing detection equipment in the native system adopts the otoacoustic emission instrument, the controller of noise apparatus device is served as by digital signal processor, each road analog-digital converter of the AD converter of noise apparatus device, communication interface and otoacoustic emission instrument all is connected on the digital signal processor, thereby realizes combining of noise apparatus device and otoacoustic emission instrument.
This utility model can be changed into multiple mode, is conspicuous for a person skilled in the art, such as: traditional audition checkout equipment can also adopt the auditory brainstem evoked potentuial measuring system; Described noise analysis device can directly link to each other with hearing detection equipment; become a unified application system; also can be independently outside system; become an independent device etc., what all were such should be considered to belong within the claim protection domain of the present utility model the conspicuous modification of affiliated technical staff.
Claims (7)
1. be with the hearing detection equipment of noise apparatus, include traditional hearing detection equipment, it is characterized in that: traditional hearing detection equipment is provided with the noise analysis device, the noise analysis device is made of pick off, prime amplifier, variable gain amplifier, weighting network, AD converter, controller, pick off, prime amplifier, variable gain amplifier, weighting network, AD converter are linked in sequence, controller connects variable gain amplifier, weighting network, AD converter, and the noise analysis device combines with traditional hearing detection equipment.
2. according to claim 1 with the hearing detection equipment of noise apparatus, it is characterized in that described traditional hearing detection equipment is a sonometer, be linked in sequence and constituted by signal source, hearing level controller, on and off switch, power amplifier, transducer, the controller of noise analysis device is connected with the signal source of sonometer, hearing level controller and on and off switch.
3. according to claim 1 with the hearing detection equipment of noise apparatus, it is characterized in that described traditional hearing detection equipment is the otoacoustic emission instrument.
4. according to claim 1 with the hearing detection equipment of noise apparatus, it is characterized in that described traditional hearing detection equipment is the auditory brainstem evoked potentuial measuring system.
5. as the hearing detection equipment of the described arbitrary band noise apparatus of claim 1 to 4, the controller that it is characterized in that described noise analysis device can be the device that microprocessor or digital signal processor have calculation function.
6. as the hearing detection equipment of band noise apparatus as described in the claim 5, it is characterized in that described noise analysis device can directly link to each other with hearing detection equipment, becomes a unified application system; Also can independently outside system, become an independent device.
7. according to claim 1 with the hearing detection equipment of noise apparatus, it is characterized in that also being provided with communication interface on the described noise analysis device, this interface can be serial communication interface, USB communication port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200794833U CN201453276U (en) | 2009-03-10 | 2009-03-10 | Hearing detection device with noise meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200794833U CN201453276U (en) | 2009-03-10 | 2009-03-10 | Hearing detection device with noise meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453276U true CN201453276U (en) | 2010-05-12 |
Family
ID=42380617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200794833U Expired - Lifetime CN201453276U (en) | 2009-03-10 | 2009-03-10 | Hearing detection device with noise meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201453276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919559A (en) * | 2013-01-11 | 2014-07-16 | 王跃建 | Sound field audiometry signal output device |
| CN108827450A (en) * | 2018-08-30 | 2018-11-16 | 重庆盾琪科技有限公司 | Noise detecting circuit |
-
2009
- 2009-03-10 CN CN2009200794833U patent/CN201453276U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919559A (en) * | 2013-01-11 | 2014-07-16 | 王跃建 | Sound field audiometry signal output device |
| CN108827450A (en) * | 2018-08-30 | 2018-11-16 | 重庆盾琪科技有限公司 | Noise detecting circuit |
| CN108827450B (en) * | 2018-08-30 | 2024-01-05 | 重庆盾琪科技有限公司 | Noise detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING GUOGUANG MEDICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SICHUAN WEIDI DIGITAL TECHNOLOGY CO., LTD. Effective date: 20140520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610021 CHENGDU, SICHUAN PROVINCE TO: 210000 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140520 Address after: Qinhuai city water Laifeng Street District of Nanjing City, Jiangsu province 210000 No. 66 national leading talent Park 40 building 203 Patentee after: Nanjing Guoguang Medical Instrument Co., Ltd. Address before: 610021 10F Weihai International Commercial Affairs Building, 136 East Binjiang Road, Chengdu, Sichuan, Chengdu Patentee before: Sichuan Weidi Digital Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |