Inspection of diesel engine injectors by several electromagnetic nondestructive methods

0476796 - FZÚ 2018 RIV NL eng J - Journal Article
Vértesy, G. - Balassa, P. - Gasparics, A. - Tomáš, Ivan - Mészáros, I.
Inspection of diesel engine injectors by several electromagnetic nondestructive methods.
International Journal of Applied Electromagnetics and Mechanics. Roč. 54, č. 3 (2017), s. 449-459. ISSN 1383-5416. E-ISSN 1875-8800
R&D Projects: GA ČR GB14-36566G
Institutional support: RVO:68378271
Keywords : electromagnetic nondestructive testing * diesel engine injector * eddy current testing * magnetic hysteresis measurements * magnetic adaptive testing
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 0.804, year: 2017

Improved eddy current techniques and a method of magnetic hysteresis measurement were applied for nondestructive inspection of thickness of the hardened surface layer of the steel injectors of diesel engines. A monotonic correlation was found with enough sensitivity and acceptable signal/noise ratio between the electromagnetic parameters and the thickness of the layer. Both the hysteresis and the eddy current methods show very similar types of the correlation. Based on these results, practical application of these novel methods can be realized instead of the presently used destructive tests for inspection of the steel injectors of diesel engines.
Permanent Link: http://hdl.handle.net/11104/0273209