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Category: Test drive

Do Not Interrupt

2024
Do Not Interrupt
Do Not Interrupt
Anonim

WE AND THE CAR

CRIMINALIST DEVICE

DO NOT INTERRUPT!

“MVD-3” in many cases is able to determine whether the body marking has been changed.

Denis BOROVITSKY

Our first acquaintance with the “electronic detective” took place at the Intersignal Dortrans-97 exhibition. It was there that the engineers of the Kazan company Rinat demonstrated the abilities of their brainchild. We admit that at first the device did not impress us - it was too easy for him to recognize “criminal” numbers. The demonstration was more like a well-rehearsed show, where a few swings of the "magic" wand were enough to reach a verdict. However, the fact that the "detective" took root at Petrovka made us take it much more seriously.

So, what is the MVD-3 device? It is very similar to a small-sized autotester, however, the lack of a mode switch and a scale without units of measure with an LED attached under it raise the question: what are we going to measure? Measure, more precisely, record the passage of eddy currents in the panel metal. Let’s explain. In different environments, eddy currents (closed induction currents in massive conductors) behave differently (take the form of an ellipse, figure eight, circle, etc.). If, at some points, the metal was subjected to mechanical or high-temperature influence, the shape of the eddy currents there will differ from the untouched sections.

Techniques for working with the device are simple: we touch the probe to the surface of the body panel and set the device to “zero” (the reference metal structure). The “starting point” can be a factory welding seam (contact welding spot), a fragment of a body panel, etc. After adjustment, we take the probe along the area of the panel that interests us, while the device compares the metal structure with a fixed reference. If suspicious deviations are detected, the LED will light up, and the indicator arrow will move to the red zone of the scale.

So, the device fixes any “interference” in the metal structure - a handicraft welded seam, etc. By the way, the difference between it and the factory one is no less than between a half-baked (factory seam) and boiled (artisanal) potato.

Now a little theory. Of the existing methods for changing the marking data of a car body, we single out the three most common. A breakdown of numbers and letters - one time, replacing a small section of a marked panel with a number - two, and finally, replacing the entire panel - three. In the first case, the serial number is knocked down with a chisel, and in its place an additional layer of metal is applied (using gas welding, electrolytic deposition, etc.) - here they perform a new marking. I must say, such a “layer cake” the device recognizes instantly. If you suspect the second option, the search is transferred to the periphery of the marked area. In this case, the task is to identify the weld hidden by a layer of putty. The third option requires checking the resistance welding points located around the perimeter of the panel. The result will give an answer - is the connection authentic. An important role is played by the visual control of the suspicious area.

The price of the product, alas, is incommensurable with its size: 450-500 US dollars. Nevertheless, car dealers, resellers, and others who trade in car resale will undoubtedly show interest in him. Agree, to know, "what kind of cat is sitting in the bag, " everyone wants, not to mention the inspector of the traffic police. Ufa, Krasnodar, Kursk, Yekaterinburg, Izhevsk, Ivanovo, Moscow, Samara, Krasnoyarsk, Penza, Voronezh, Ryazan, Orenburg, Ulyanovsk, Murmansk - this is not a complete list of cities where traffic police units have in their arsenal the devices of the "Ministry of Internal Affairs." Family

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