Analysing the potential for application of the phase shift method in endoscopic examination of marine engines

• Autorzy: Korczewski Z.
• Języki publikacji: EN

Abstrakty

EN

The article presents theoretical principles of image processing in digital endoscopy which makes use of a miniaturised spectral scanner “PhaseProbe” designed by General Inspection Technologies LP, the producer of the measuring videoendoscope Everest XLG3. The technology of optoelectronic 3D mapping of the examined surface, which consists in measuring the phase shift between the emitted and reflected light waves, is briefly described. The efficiency of the “PhaseProbe” based method of endoscope measurements is compared with the earlier developed methods, such as “ShadowProbe” and “LaserDots”, which were used by the author in real conditions of diagnostic investigations of engines in operation in marine power plants. The processed results of the endoscope analysis of the broken gas turbine engine rotor blades which were earlier dimensioned using the inspection probes of “StereoProbe”, “ShadowProbe” and “LaserDots” type and now are examined by the author with the aid of the phase shift method make a valuable complement and synthesis of the discussion presented in the article.

Słowa kluczowe

EN

endoscopic diagnostics; phase shift method; marine engines

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2013
• Tom: nr 1
• Strony: 23--30
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Korczewski Z.

• Faculty of Ocean Engineering and Ship Technology Chair of Marine and Land Power Plants Gdansk University of Technology Narutowicza 11/12 80-233 Gdansk, POLAND, phone/fax: [phone]

Bibliografia

• 1. Hlebowicz J.: Industrial endoscopy (in Polish). Biuro Gamma. Warsaw 2000.
• 2. Korczewski Z.: Endoscopy of marine engines (in Polish). AMW, Gdynia 2008.
• 3. Korczewski Z.: Analysing the ability to identify the technical and energetic state of a marine main engine piston-crankshaft system during its operation taking into account diagnostic parameters measured with the aid of methods used in endoscopic diagnostics (in Polish). Report prepared within the framework of the research project financed by z MNiSW No N509 494638 and entitled : „Decision making based control of operation of piston-crankshaft systems in marine main engines of sea-going vessels performed with the aid of technical diagnostics and taking into account the safety and environment protection.” Gdansk University of Technology, 2010.
• 4. General Electric Company Inspection Technologies. The Everest XLG3 VideoProbe System. Operation Instruction. USA 2011.
• 5. General Electric Company Inspection Technologies. The Everest XLG3 VideoProbe System. Manual Guide. USA 2011.
• 6. VideoProbe System – GE Measurement & Control. USA 2011.