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It was a 4-coil induction balance for detecting submerged metallic torpedoes and iron ships and the like. [8] Given the development time involved this may have been the earliest known device specifically constructed as a metal detector using magnetic induction.
Newer speed detection devices use pulsed laser light, commonly referred to as LIDAR, rather than radio waves. Radar detectors, which detect radio transmissions, are unable to detect the infrared light emitted by LIDAR guns, so a different type of device called a LIDAR detector is required. However, LIDAR detection is not nearly as effective as ...
A variety of technologies are used to detect landmines, improvised explosive devices (IED) and unexploded ordnance (UXO), including acoustic sensors, animals and biologically-based detection systems (bees, dogs, pigs, rats), chemical sensors, electromagnetic sensors and hyperspectral sensor analysis, generalized radar techniques, ground ...
C-FAST was a device purported to be able to detect infection with the hepatitis C virus (HCV) from a distance, using electromagnetic radiation emanating from the virus' genome. At a press conference in February 2014, Egyptian generals presented the device as a result of decades-long secret military research.
In general, detection is the action of accessing information without specific cooperation from with the sender. In the history of radio communications, the term "detector" was first used for a device that detected the simple presence or absence of a radio signal, since all communications were in Morse code.
The Alpha 6 is a fake "molecular detector" which, according to its manufacturer, can detect various substances from a distance, including explosives and drugs. The device has come under scrutiny following revelations about two similar devices, the ADE 651, which has become the focus of a fraud investigation in the United Kingdom, [1] and the GT200, which tests have determined to perform no ...
According to ghost hunters these are helpful in detecting and visualizing temperature changes during an investigation. SLS or Kinect camera This is a device that uses a pattern of infrared dots to detect objects in complete darkness. Analyzed by Kenny Biddle [56] [57] and found prone to spurious results when used as a non-stationary device.
The Spectre III detected almost every radar detector certified for operation in the United States by the Federal Communications Commission as of December 2004. However counter technology has evolved rapidly, so that by July 2008, even budget radar detectors were able to avoid detection by the device. [ 2 ]