The emulation people who is used for shielding capacity test of shielding dress for preventing electromagnetic radiation
Technical field
The present invention relates to a kind of emulation people, particularly a kind of when shielding capacity test of shielding dress for preventing electromagnetic radiation employed emulation people.
Background technology
More powerful electromagnetic radiation energy injury human body, for this reason, people have put on shielding cloth for preventing electromagnetic radiation; At present the method for testing to the anti-electromagnetic radiation loomage has had clear and definite national standard, but behind fabric one-tenth clothes, particularly process have leisure, behind the civilian screening clothing of health care, radiation proof function; Because slits, position such as neckline cuff clothing pendulum make the shield effectiveness of the shield effectiveness of clothes far below shielding cloth, in order to test the shield effectiveness of screening clothing a part; Must screening clothing be enclosed within on one's body the model (emulation people); Survey the emulation people and wearing when not wearing screening clothing, the field intensity of health a part, thus obtain the shield effectiveness of this position.
When the mobile phone radiation power test, in order to simulate human body, inject the physiological saline of different proportionings at each position of emulation people, make it close, thereby obtain specific absorption rate (BAR) absorption of electromagnetic wave rate and true man.But this makes its cost surprising---reach more than 100 ten thousand Renminbi.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of emulation people who is used for shielding capacity test of shielding dress for preventing electromagnetic radiation; Said emulation people's characteristic is that under electromagnetic wave radiation, the reflection coefficient and the tissue on its surface are close; The propagation characteristic of electromagnetic wave on the said emulation person is close with true man's propagation characteristic on one's body like this; The emulation people is also consistent in the stack of field, a certain position of human body with true man, and like this, said emulation people just can be used as the best stage property of screening clothing shield effectiveness test.
The technical matters that the present invention will solve can solve through following technical scheme:
The emulation people who is used for shielding capacity test of shielding dress for preventing electromagnetic radiation; Comprise the emulation human body, it is characterized in that: scribble one deck at said emulation human body outside surface and make said emulation people electromagnetic reflection characteristic and the approaching coating that absorption electromagnetic wave function is arranged of true man.
Described have the coating that absorbs the electromagnetic wave function can select the polyaniline plastics (a kind of organic shielding material) that mix Bronsted acid for use, and add a certain proportion of iron powder or carbon dust, to regulate its reflection coefficient.Also can adopt it to have the coating of said function.
Said emulation human body is the model that outside surface is pruned a bed thickness 0.5~5mm.
It is described that the thickness of the paint coatings that absorbs the electromagnetic wave function is arranged is 0.5~5mm.
The emulation people that said emulation human body is the part body.
The hole that said emulation human body can fix up an aerial wire when being provided with test.
The emulation people who is used for shielding capacity test of shielding dress for preventing electromagnetic radiation of the present invention, simple in structure, easily manufactured, cheap.The present invention will have the coating that absorbs the electromagnetic wave function to be coated on one's body the emulation human body that the model processes; Make reflection coefficient and the tissue on emulation people surface approaching, the field strength distribution situation after the field strength distribution of putting on placement receiving antenna place on the screening clothing post-simulation person and true man wear screening clothing on one's body is more approaching like this.Make test result more approach truth.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with embodiment, further set forth the present invention.
Table 1 electromagnetic wave is propagation characteristic in the low tissue of water cut (fat and bone)
Frequency (MHz) |
Reflection coefficient |
Resistivity (Ω .m) |
Attenuation constant α (dB/mm) |
?100?200?300?433?750?915?1500?2450?3000 |
0.511 0.458 0.438 0.427 0.415 0.417 0.412 0.406 0.406 |
1910~7500 2580~9420 3160~1070 3790~1180 4980~1380 5560~1470 7080~1710 9640~2130 11000~23400 |
0.14 0.22 0.30 0.33 0.38 0.49 0.67 0.78 0.89 |
The propagation characteristic of table 2 electromagnetic wave in the high tissue of water cut (skin and muscle)
Frequency (MHz) |
Reflection coefficient |
Resistivity (Ω .m) |
Attenuation constant α (dB/mm) |
?100?200?300?433?750?915?1500?2450?3000 |
0.881 0.884 0.825 0.803 0.779 0.772 0.761 0.754 0.751 |
88.9 128 137 143 154 160 177 221 226 |
1.30 1.81 2.23 2.43 5.64 2.86 3.59 5.11 11.02 |
The method for making of the coating that absorbs the electromagnetic wave function is arranged, select the polyaniline plastics for use, mix Bronsted acid, and add certain proportion iron powder or carbon dust, process the 0.5mm thick film, or adopt other method, make the reflection coefficient of this film of processing, meet the requirement of table 1 or table 2.Like this, just can know certain position the model, should prepare with which type of proportioning has the coating that absorbs the electromagnetic wave function, perhaps should coat the how thick coating that absorbs the electromagnetic wave function that has.
At standard model (the standard model who is used for clothing show) the thick one deck of 0.5~5mm (or making a model) of pruning, process the emulation human body on one's body than the thin 0.5~5mm of standard model.Also can use the model of non-standard size.Can be according to proving installation needs and true man size reduction or amplify and make the model in proportion.
The emulation human body on one's body diverse location coat the coating (by the different frequency requirement, coating formula is difference also) that having of different proportionings absorbs the electromagnetic wave function.Thick 0.5~the 5mm of coating.
A diameter 30mm is dug at emulation human body's heart, belly or other position that needs, and the hole of dark 10mm is so that fix up an aerial wire during test.
In order to save the space of test, can use the emulation people of part body, when only testing upper body; Can the prune biped of the model's head and the lower part of the body; Truncated section should be coated with last layer has the coating that absorbs the electromagnetic wave function, and the model of its reflection coefficient and normal size is identical, in order to avoid influence model's performance.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.