CN204087206U - A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment - Google Patents
A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment Download PDFInfo
- Publication number
- CN204087206U CN204087206U CN201320787433.7U CN201320787433U CN204087206U CN 204087206 U CN204087206 U CN 204087206U CN 201320787433 U CN201320787433 U CN 201320787433U CN 204087206 U CN204087206 U CN 204087206U
- Authority
- CN
- China
- Prior art keywords
- model
- electromagnetic radiation
- headform
- utility
- absorption rate
- 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 The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to a kind of standard Chinese standard headform being applied to specific absorption rate of electromagnetic radiation assessment.Described model is Shell model, and thickness of shell entirety is 2mm, and ear's reference point place thickness is 6mm, and tolerance is respectively +/-10%.The beneficial effects of the utility model are: 1, establish the headform based on Chinese number of people data, and more accurate reflection meets the data of compatriots' feature.2, model of the present utility model can be directly used in Sprint electromagnetic radiation evaluation test.
Description
Technical field
The utility model relates to a kind of standard Chinese standard headform being applied to specific absorption rate of electromagnetic radiation assessment.
Background technology
The universal of wireless communications products greatly facilitates people's lives, but its electromagnetic field as information carrier also brings the health problem of electromagnetic radiation.According to World Health Organization's conclusion, electromagnetic field is suspect carcinogen 2B grade.In order to determine the electromagnetic field radiation dosage of particularly head in the body that the number of people is exposed under electromagnetic field environment, manyly at present coordinating equivalent microstructure modeling liquid by building human head model, using the method for measurement and numerical simulation to carry out.The dimensional data multi-source of related body's model in America and Europe, i.e. Caucasoid.
Current dependent evaluation many uses SAM headform carries out.This model derives from Americans in uniform 90 percentile data.And carry out simplification and the compression of outer ear, thickness of shell 2-6 millimeter, inside fills microstructure modeling liquid, for Sprint electromagnetic radiation evaluation, particularly near the mobile communication terminal test that brain uses.The major parameter of SAM model and technical indicator have been announced and can with reference to ansi standard IEEE 1528:Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices:Measurement Techniques.
The SAM number of people derives from the 90 hundredths header data of Americans in uniform, Caucasoid and the Mongolian race have distinct head feature difference, can the SAM number of people effectively for assessment of the head electromagnetic field radiation intensity of population of China, the worry of consumers in general always, institute of Ye Shi Policy Supervision department problems faced.So be necessary to be formed the headform meeting population of China feature, and assess for electromagnetic radiation SAR.For under the prerequisite of protection people ' s health, this promotes that radio communication career development has great meaning.
That China uses at present in association area (such as the network access testing of mobile phone specific absorption rate) is also above-mentioned headform.China once issued the number of people data GB/T2428-1998 of the different percentiles based on large sample demographic census: adult's Head Face Dimensions, but at present also without any the report above-mentioned data being used for Sprint electromagnetic radiation evaluation.Directly above-mentioned data are used for Sprint electromagnetic radiation evaluation also exists a lot of problem, particularly for the correction of external ear.
In the application, specific absorption rate of electromagnetic radiation (SAR) refers to: in the unit interval, the energy of electromagnetic field of unit mass tissue resorption.
Utility model content
The purpose of this utility model solves the headform using and meet Chinese's feature, the SAR distribution of the assessment number of people under electromagnetic radiation.The Sprint electromagnetic radiation evaluation of mobile product is provided to the result having and comprise Chinese's constitutive character.
The technical solution of the utility model is as follows:
1, be applied to a standard headform for specific absorption rate of electromagnetic radiation assessment, described head model comprises eye, nose, mouth and ear, it is characterized in that, its physical dimension is as follows:
Further, described model is Shell model, and thickness of shell entirety is 2mm, and ear's reference point place thickness is 6mm, and tolerance is respectively +/-10%.
Further, described model is full head shell model, and left and right is symmetrical along nose center line.
Further, described model is half head Shell model.
The beneficial effects of the utility model are:
1, establish the headform based on Chinese number of people data, more accurate reflection meets the data of compatriots' feature.
2, model of the present utility model can be directly used in Sprint electromagnetic radiation evaluation test.
Accompanying drawing explanation
Fig. 1 is Facad structure of the present utility model and scale diagrams.
Fig. 2, Fig. 3 are side structure of the present utility model and scale diagrams.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further elaborated.
As Figure 1-3, physical dimension of the present utility model is as shown in the table.
Each organ site of the present utility model and size as shown in the table:
| 1 | Eye widths | Air line distance | 32mm |
| 2 | Eye-level | Vertical range | 17mm |
| 3 | Edge and crown distance on eyes | Vertical range | 103mm |
| 4 | Edge and crown distance under eyes | Vertical range | 120mm |
| 5 | Inner eye corner is to nasion distance | Air line distance | 20.6mm |
| 6 | The tail of the eye is to nasion distance | Air line distance | 52.9mm |
| 7 | Inner eye corner is to subnasal point distance | Air line distance | 58.1mm |
| 8 | The tail of the eye is to subnasal point distance | Air line distance | 73.7mm |
| 9 | Inner eye corner is to schistostoma point distance | Air line distance | 79.2mm |
| 10 | The tail of the eye is to schistostoma point distance | Air line distance | 90.8mm |
| 11 | Inner eye corner is to tragus point distance | Air line distance | 108.8mm |
| 12 | The tail of the eye is to tragus point distance | Air line distance | 87.4mm |
| 13 | Mouth is wide | Air line distance | 50.3mm |
| 14 | Lip overall height | Air line distance | 20.4mm |
| 15 | Schistostoma point is to the distance of subnasal point | Air line distance | 23.1mm |
| 16 | Schistostoma point is to the distance of tragus point | Air line distance | 134.6mm |
| 17 | Nose and crown distance | Vertical range | 151.6mm |
| 18 | Ose breadth | Air line distance | 36.4mm |
| 19 | Nasal height | Air line distance | 56.6mm |
| 20 | Nose is dark | Air line distance | 22.5mm |
| 21 | Subnasal point is to the distance of tragus point | Air line distance | 128.1mm |
| 22 | Nasion is to the distance of tragus point | Air line distance | 124.5mm |
| 23 | Ear is high | Air line distance | 71mm |
| 24 | Ear the widest part | Air line distance | 35mm |
The relative dielectric parameter of the utility model Shell model should be less than or equal to 5, and loss tangent is less than or equal to 0.05, can allowable tolerance be +/-10%.Equivalent microstructure modeling liquid is full of in model, for simulating the dielectric property parameter of brain tissue, microstructure modeling liquid dielectric property desired value meets People's Republic of China's communication industry standard " wireless communication device that hand-held lotus body worn uses is to the electromagnetic irradiation-manikin of human body, instrument and code Part I: the SAR evaluating regulation YD/T1644.1-2007(frequency range 300MHz ~ 3GHz near the hand-held wireless communication device used) " in one's ear.
Claims (4)
1. be applied to a standard headform for specific absorption rate of electromagnetic radiation assessment, described head model comprises eye, nose, mouth and ear, it is characterized in that, its physical dimension is as follows:
。
2. model according to claim 1, is characterized in that:
Described model is Shell model, and thickness of shell entirety is 2mm, and ear's reference point place thickness is 6mm, and tolerance is respectively +/-10%.
3. model according to claim 1, is characterized in that:
Described model is full head shell model, and left and right is symmetrical along nose center line.
4. model according to claim 2, is characterized in that:
Described model is half head Shell model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787433.7U CN204087206U (en) | 2013-12-03 | 2013-12-03 | A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320787433.7U CN204087206U (en) | 2013-12-03 | 2013-12-03 | A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204087206U true CN204087206U (en) | 2015-01-07 |
Family
ID=52179889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320787433.7U Expired - Fee Related CN204087206U (en) | 2013-12-03 | 2013-12-03 | A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204087206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540916A (en) * | 2018-05-30 | 2018-09-14 | 出门问问信息科技有限公司 | Bluetooth headset detection method, device and headform based on headform |
| CN112259236A (en) * | 2020-09-08 | 2021-01-22 | 中国辐射防护研究院 | Model for calculating and evaluating dosage of eye lens |
-
2013
- 2013-12-03 CN CN201320787433.7U patent/CN204087206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108540916A (en) * | 2018-05-30 | 2018-09-14 | 出门问问信息科技有限公司 | Bluetooth headset detection method, device and headform based on headform |
| CN112259236A (en) * | 2020-09-08 | 2021-01-22 | 中国辐射防护研究院 | Model for calculating and evaluating dosage of eye lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kuster et al. | Dosimetric evaluation of handheld mobile communications equipment with known precision | |
| CN106900051B (en) | Method and device for reducing specific absorption rate of electromagnetic radiation | |
| CN204087206U (en) | A kind of standard headform being applied to specific absorption rate of electromagnetic radiation assessment | |
| Christ et al. | A numerical and experimental comparison of human head phantoms for compliance testing of mobile telephone equipment | |
| EP2264912A3 (en) | Method and system for suppression of interferences between cells | |
| Lee et al. | Mobile phone types and SAR characteristics of the human brain | |
| de Miguel-Bilbao et al. | Effective analysis of human exposure conditions with body-worn dosimeters in the 2.4 GHz band | |
| Lee et al. | Brain SAR of average male Korean child to adult models for mobile phone exposure assessment | |
| CN107528957A (en) | A kind of method of test TD LTE mobile phone specific absorption rates | |
| Lin | Specific absorption rates induced in head tissues by microwave radiation from cell phones | |
| Deltour et al. | Analysis of three‐dimensional SAR distributions emitted by mobile phones in an epidemiological perspective | |
| Keshvari et al. | Large scale study on the variation of RF energy absorption in the head & brain regions of adults and children and evaluation of the SAM phantom conservativeness | |
| Kang et al. | SARs for pocket-mounted mobile telephones at 835 and 1900 MHz | |
| Boutry et al. | Dosimetric evaluation and comparison of different RF exposure apparatuses used in human volunteer studies | |
| Rajan et al. | Performance analysis of mobile phone radiation minimization through characteristic impedance measurement | |
| Kaburcuk et al. | Efficient computation of SAR and temperature rise distributions in a human head at wide range of frequencies due to 5G RF field exposure | |
| CN111053569B (en) | Posture judgment method and device based on positioning system and storage medium | |
| Safari et al. | Dental Implants and Mobile-Phone Use: How implant presence and position affect antenna parameters, specific absorption rate, and current density | |
| CN202661554U (en) | Detection device for low-frequency electromagnetic leakage | |
| Mat et al. | A comparative study of simple geometrical head phantoms on specific absorption rates for simulations and measurements at 900MHz | |
| Oliveira et al. | Exposure assessment of smartphones and tablets | |
| Keshvari et al. | Hand effect on head specific absorption rate (SAR) exposed by two realistic phone models | |
| Hong et al. | Numerical compliance testing of human exposure to electromagnetic radiation from smart-watches | |
| Arwa et al. | Influence of morphology and tissue distribution on SAR estimation: application on a heterogeneous head with realistic connected glasses | |
| Douglas et al. | Hand phantom models for the assessment of SAR in the head from cellular telephones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |