Thieves use device to detect laptops in cars
 Selangor police chief DCP Datuk Khalid Abu Bakar said today the men, aged 20 and 39, were arrested in an ambush at Kampung Changkat, Gombak at about 7.30pm on Tuesday. He said police recovered the gadget and seized several laptops, custom-made break-in tools, handbags and watches among other items. He said police learnt that the men had purchased the gadget from an electronic shop. The conventional use of the inductive amplifier is the location of breaks in hidden wires, even buried in concrete. The typical wire detection range in a concrete wall is 10-20 cm. http://sun2surf.com/article.cfm?id=34309   Do you know how much is these gadgets cost ? It’s range between USD 35 to USD 120. It is very cheap and it is a very common item for detection of metallic objects. Do not think of if you take off the battery of your pda, mobile phone or laptop it cannot be detected. Then you are wrong as it detect metals. | SHAH ALAM (June 4, 2009) : The mystery as to how thieves could single out vehicles for the laptops stored inside has been resolved with the arrest of two Indonesian men.
OPERATING PRINCIPLES FOR INDUCTIVE PROXIMITY SENSORS Inductive proximity sensors are used for non-contact detection of metallic objects. Their operating principle is based on a coil and oscillator that creates an electromagnetic field in the close surroundings of the sensing surface. The presence of a metallic object (actuator) in the operating area causes a dampening of the oscillation amplitude. The rise or fall of such oscillation is identified by a threshold circuit that changes the output of the sensor. The operating distance of the sensor depends on the actuator's shape and size and is strictly linked to the nature of the material. Just be very careful and NEVER leave behind any of your electronic gadget when you leave your car. |
 | To enlarged this picture, please click on the picture to download. |
| Share this post : |  |  |  |  |  |  |  |  |  |
