It is distinguished from its analogues because it is a highly sensitive method that allows you to detect a razor blade, a coin, or even a small pin in the lapel of your jacket. This magnetosensitive sensor system even enables you to see the contours of objects and identify whether it is made of ferrous or non-ferrous metal.
The device is based on a grid of magnetosensitive sensors which were developed (along with the device itself) by specialists of the Research and Production Complex “Technology Center” of the Moscow Institute of Electronic Technology (MIET). As the developers are taking out a patent for the device and the sensors, they do not disclose their design yet. However, the subject matter is explained as follows.
The “heart” of each sensor is a superfine film of iron, nickel and cobalt alloy, 100 angstroem units thick (one hundredth of a micron). The film structure is heterogeneous with microcrystals forming differently oriented domains in it. The film pattern formed by microcrystal strokes is determined by the parameters of the magnetic field (magnetic intensity and direction of lines of force).
If magnetic field intensity changes, the microcrystals' orientation also changes, which affects the electrical resistance of the film. The object's own magnetic field or degree of distortion of the terrestrial magnetic field, is then recorded and measured. Nonferromagnetic metal objects are detected by the weak magnetism emitted using sensors surrounded by a coil of electromagnetic radiation which has a known emissive power and frequency.
The device can distinguish between metal objects by examining the area at a certain distance, for example, 10 centimeters, and filtering out other objects using a central processor. This processor analyzes data and compares it with reference objects. The object is displayed on an LCD display, much like an ordinary metal detector.
Nadezda Markina | alfa
Magnetic nano-imaging on a table top
20.04.2018 | Georg-August-Universität Göttingen
New record on squeezing light to one atom: Atomic Lego guides light below one nanometer
20.04.2018 | ICFO-The Institute of Photonic Sciences
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
20.04.2018 | Physics and Astronomy
20.04.2018 | Interdisciplinary Research
20.04.2018 | Physics and Astronomy