Main Sector of relevance\IRC classification 8. Industrial Manufacturing, Material and Transport Technologies
8.97 Magnetic wide-range thickness gauge MTTs-3
Developers’ contact information
State Scientific Institution “The Institute of Applied Physics of the National Academy of Sciences of Belarus”
16 Akademicheskaya Street, Minsk BY-220072
Summary
The MTTs-3 thickness gauge provides measurement of thickness of non-magnetic coatings (paint, lacquer, chrome, copper, zinc, etc.) on steel and other ferromagnetic bases in the range 0÷10000 μm, and thickness of nickel coatings on non-magnetic and ferromagnetic bases in the range of 0÷150 μm with a single converter.
Description
The MTTs-3 thickness gauge provides measurement of thickness of
non-magnetic coatings (paint, lacquer, chrome, copper, zinc, etc.) on steel and
other ferromagnetic bases, and thickness of nickel coatings on non-magnetic and
ferromagnetic bases.
Technical and meteorological specifications:
Range of measured thicknesses:
basic model MTTs-3:
- non-magnetic coatings on ferromagnetic bases – 0÷6000 μm
(can be extended up to 20000 μm),
- nickel coatings on non-magnetic bases – 0÷150 μm
(can be extended up to 2000 μm),
- nickel coatings on steel – 0÷150 μm;
version MTTs-3-1:
- non-magnetic coatings on ferromagnetic bases – 0÷1000 μm;
version MTTs-3-2:
- non-magnetic coatings on ferromagnetic bases – 0÷5000 μm;
version MTTs-3-3:
- non-magnetic coatings on ferromagnetic bases – 0÷10000 μm;
version MTTs-3-4:
- nickel coatings on ferromagnetic bases – 0÷50 μm;
version MTTs-3-5:
- nickel coatings on non-magnetic bases – 0÷100 μm.
Accuracy of measurement – no more than ± (1,5 + 2% of measured
thickness) μm.
Current consumption – max. 14 mA.
Overall dimensions – max. 150×85×45 mm.
Device mass – max. 300 g.
Operating temperature range – from —10 to +40 °C.
Static measuring processing (number of readings, average value).
The MTTs-3 thickness gauge is registered in the State Register of Measuring
Devices of the Republic of Belarus (certificate of approval of a measurement
device type no. 2944) and the Russian Federation (certificate of approval of a
measurement device type no. 20712).
Technology type
Technical advantages and economic benefits
Advantages of the thickness gauge MTTs-3 as compared with known
prototypes:
– The new method of informative parameter measurement (induction of a
secondary magnetic field) automatically excludes the impact of the primary
magnetizing field on the results of measurements;
– A single converter provides measurement of thickness of non-magnetic
coatings on steel, nickel coatings on steel and non-magnetic bases, without
adjusting the thickness gauge to the thickness range and types of coatings;
– High resolution (tenths of micrometer for non-magnetic and nickel coatings
on steel, one hundredths of micrometer for nickel coatings on non-magnetic
bases of small thickness);
– Results of measurements are independent from electrical properties of
coatings and bases.
Technology differentiation and uniqueness
The MTTs-3 thickness gauge is based on the magnetodynamic method of control, thus the measured signal does not contain a non-information component due to the magnetization field of the converter; the result is high resolution, which provides a wide range of measurements. High-coercivity material having a high residual magnetization and small overall dimensions of the magnet (not more than Ø10×5 mm); a mere point contact with the surface of the coating provides high locality of measurements, and the relatively high magnetization of the field provides a uniform grading when measuring thickness of non-ferromagnetic coatings on steels of various grades.
Context in which technology was identified
The MTTs-3 thickness gauge has been introduced and is being used by many national businesses (RUE “Minsk Tractor Works”, PRUP “Minsk Automobile Plant”, PA “Belarusian Automobile Plant” Zhodino, JSC “Amkodor”, OJSC “Motovelo”, etc.), as well as by JSC “Hydroagregat” (Russian Federation, Nizhniy Novgorod region, Pavlovo).
Technological keywords
Thickness gauge, non-destructive testing, magnetodynamic method, thickness of coatings, types of coatings.
Development Stage
Intellectual property rights
Range of applications
Measuring thickness of paint, heat-resistant, flame retardant, electroplating and other non-ferromagnetic coatings applied to steel and other ferromagnetic materials, as well as thickness of nickel coatings applied on the bases of ferromagnetic or non-ferromagnetic materials.
Classifier Used at the EU Innovation Relay Centres
Preferable Regions
Practical experience
Extensive device operation experience at enterprises of the Republic of Belarus.
Environmental impact
None.
Type of collaboration sought
Terms and restrictions
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Available technical assistance