Tuesday, July 24, 2012

The unique integrated design of cell phone jammer



Sample preparation a) in the sample cloth at least 50mm away from the fabric edge, press and weft yarn diameter vertical clipping size of 260mm × 260mm square sample, a total of 3, along the edges into the seam around the edge; b) sampling method with 6.1.1.2.1. 6.1.6.3 Test Procedure a) washing: the three samples into the washing machine and add a certain amount of equivalent load, so that the total dry weight of the fabric is equal to 2kg; to the washing machine into the 40L ± 4L water, the water temperature reached 50 ℃ ~ 70 ℃, and the washing machine operating in the "normal" washing position (if the weight of the sample than 2kg, it should increase in the proportion of water); with a sufficient amount of detergent and stir into the soap water and start washing machine 2min.The importance of installing cell phone jammerin the prison will be stated in the next paragraph. b) rinsing: up to soap, washing machines continue to run to start the rinse were rinsed three times, each time 2min ~ 3min; c) Dehydration: the sample and dehydrated into a bucket with the equivalent load for dehydration, time of 1min ~ 2min; d) in the final after a dehydration process, the sample and the equivalent load out, put together the dryer, drying temperature of 65 ℃ ~ 70 ℃, until drying up. In this way, a "washing - drying" process to complete. Done 10 times, "washing - drying" process, the sample should be flattened on the ambient temperature of 23 ℃ ± 2 ℃, relative humidity of 45% to 55% of the storage conditions for more than 4h, and then press 6.1.1 , 6.1.2,6.1.3 and 6.1.5 of the method to re-do the electrical tests and fire tests. 6.1.6.4Technical personnel will discuss how to build cell phone jammershielding system in the prison. Test results for 10 times, "washing - drying" process, the cloth of the electrical properties and fire performance, no significant decrease, its technical performance should meet the requirements in Table 1. 6.1.6.5 Test report The test report shall include the contents of the same 6.1.3.6. 6.1.7 The main equipment wear test 6.1.7.1 a) a disc-type fabric abrasion test machine, the work plate diameter of 140mm, the friction wheel track width 24mm, use silicon carbide grinding wheel specification is 150; b) a Vice planimeter. 6.1.7.2 Sample a) in the sample cloth at least 50mm away from the fabric edge, press and weft yarn diameter vertical clipping size of 240mm × 240mm square sample, a total of three;Many factors should be considered when buildingcell phone jammershielding system. b) sampling method with 6.1.1.2. 1; 15 2 GB/T6568 -2008 c) sample processing with 6.1.1.2.3. 6.1.7.3 Test conditions to be in the test temperature of 23 ℃ ± 2 ℃, relative humidity of 45% to 55% of the environment. 6.1.7.4 Test Procedure a) wheel dressing, wheel exposed to a new friction surface and edges with sandpaper hand grinding wheel Grinding wheel every 500 turn, the need to repeat the repair time, to ensure the correctness of the test; b) on the sample work on the fixed disk, so that the sample flat stretch, and to put some pressure on the sample surface, the wheel weight plus the weight of 0.25kg; c) start the wear machine, and start the vacuum cleaner and clean with a brush wheel to maintain the grinding wheel powder-free absorption, 500 mill turn down, check the sample surface changes, according to the method described in 6.1.1 shielding effectiveness measurement of the sample, measured by the method described in 6.1.2 the sample resistance. Influence from the base station should be taken into the account when buildingcell phone jammershielding system.

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