Friday, May 18, 2012

The meeting information security equipments contain mobile phone jammer

usually used in an environmental sealing requirements of the occasion. From the structure on the points, plates and strips are two types of hollow and solid material is divided into two. Plates have different thicknesses. Materials: silicone rubber mixed with copper, aluminum, silver, silver-plated copper, silver-plated aluminum, silver-plated glass powder and so on. Response time of a cell phone jammer switching on or off is short. The shielding performance: low-frequency shielding effectiveness of low and high frequency shielding effectiveness when high.

Main advantages / disadvantages: while providing electromagnetic sealing and environmental sealing. Hard, high prices, because the surface is relatively soft, and sometimes can not pierce the surface of the metal oxide layer, resulting in shielding effectiveness is very low. Finger guard: usually used in the contact surface sliding contact situations. Many traits, the material is beryllium copper, but do different surface coating. The police can act more accurately and timely when capturing the suspect through using cell phone jammer. Shielding properties of high-frequency, low-frequency shielding effectiveness is relatively high.

Main advantages / disadvantages: large deformation, high shielding effectiveness, allowing sliding contact (which facilitates removal) / high price. Spiral pad: from beryllium copper or stainless steel rolled into coils, high shielding effectiveness (all electromagnetic shielding effectiveness of the highest sealing gasket). Main advantages / disadvantages: low price, high shielding effectiveness / easily damaged when exposed to excessive compression.There are two types of metal mesh sandwiched between two layers of glass composition, the other is on the glass or transparent plastic film coated with a thin conductive layer composition. The electric carrier wave is the technical core of the wholecell phone jammersystem. The former material has the advantage of shielding effectiveness of high disadvantage is that because the visual discomfort caused by Moire fringes. The latter material just the opposite.

Transparent method of shielding windows features:

Advantages: Simple, display device will produce radiation or sensitivity to external interference can be used.

Disadvantages: poor vision, when the magnetic field inside the device sensitive to radiation or magnetic circuit is not suitable; (transparent shielding material for shielding effectiveness is very low or no magnetic field), when the window is large, the cost is higher.The meeting information security equipments contain mobile phone jammer.



Conductive fabric gaskets: Conductive fabric wrapped on foam rubber core structure, usually rectangular, with adhesive, installation is very convenient. The unique design of an antenna of cell phone jammercan avoid inconvenience of many-antenna blocking. When high-frequency shielding effectiveness is relatively high.Main advantages / disadvantages: low prices, excessive compression is not easily damaged, soft, with some environmental seal / frequent friction can damage the conductive surface.

12 used magnetic sealing gasket Notes

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