![]() One of the major issues which the inspection companies face when they carry out corrosion monitoring at the large or multiple sites, is the thickness gauging arrangement and the results analysis. To avoid this, in all our devices a system of compensation of this error is available – so-called V-path correction, optimized for every dual-element transducer type which is used. This could result in a significant errors of measurement. However, they have a significant inconvenience – a beam path from the transmitter to the reflection point and back to the receiver – is not a straight line, but a letter «V», so the time of the back wall echo propagation, especially at small thicknesses, is much more than it would require to go through the object’s thickness and back. They allow to detect even tiny corrosion damages at moderate depths. In order to measure small thicknesses, usually the dual-element transducers are used. In cases where it is necessary to perform testing of either high-temperature or, on the contrary, low-temperature objects, a system of temperature compensation of the sound velocity variability is available in the device – to increase the measurements accuracy. Moreover, in order to increase the measurements accuracy, not a crossing point of some threshold level is used (for instance, the Gate), but a 0-crossing – whose position does not depend on the signal amplitude. The measurement process is also automated due to the smart AGC use, which automatically select such a gain (AGC – Automatic Gain Control), that the measurement will be carried out according to the first negative halfwave of the back wall echo-signal. It is similar with the rest of the main device parameters. For example, upon pressing the Gate 1 button (or the Gate 2), an operator can move the Gate with the buttons ←/→ and ↑/↓, maximize and minimize it with the buttons –/+. Main parameters control – scan, gate, and the gauge parameters – is performed from the keyboard by pressing just a couple of buttons. OKOndt Group company’s products for corrosion testing advantages. ![]() The types of ultrasonic devices for corrosion and erosion monitoring. What the NDT means for corrosion and erosion detection are. The branches of industry where corrosion and erosion monitoring is applicable. Corrosion NDT and monitoring – application of the Sonocon B/BL and ExScan1000 instruments These tasks are relevant for almost all major industries: nuclear, thermal and hydropower, chemical and petrochemical industries, oil and gas, piping, naval, railway and automotive transport, and others. Moreover, despite all the measures taken to increase the corrosion resistance of materials, control and monitoring of appearance and development of corrosion and erosion damages remains one of the most important elements of the Risk Based Engineering. Please note that the promotional version of this map (the one with the brown paper background) is not included in this commercial use license and the text and name of the map are NOT released under this license, and cannot be used in conjunction with this map in a commercial project.The control of corrosion and erosion damages is one of the essential engineering tasks solving of which ensures the long performance of the objects and constructions. However, the grid map constructed using ultrasonic sensors cannot represent the shape of the given environment realistically due to incorrect sonar measurements incurred by specular. It is very important for a mobile robot to recognize and construct its surrounding environment for navigational purposes. ![]() ![]() Each month while funding is over the $300 mark, each map that achieves the $300+ funding level will be released under this free commercial license. You can use, reuse, remix and/or modify the maps that are being published under this commercial license on a royalty-free basis as long as they include attribution (“Cartography by Dyson Logos” or “Maps by Dyson Logos”). This paper proposes a novel approach for building the occupancy grid map using sonar data. Over 500 amazingly generous people have come together to fund the site and these maps, making them free for your use.īecause of the incredible generosity of my patrons, I’m able to make these maps free for commercial use also. This map is made available to you under a free license for personal or commercial use thanks to the awesome supporters of my Patreon Campaign. ![]()
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