Ultrasonic thickness measurement of power station boiler tubes using electromagnetic acoustic transducers

Insight: Non-Destructive Testing and Condition Monitoring

Volumn 39, Issue 9, 1997, Pages 618-621

  Crowther, P ^a   Edwards, C ^a   Palmer, S B ^a   Kenny, S D ^b  

^a UNIVERSITY OF WARWICK   (United Kingdom)

^b National Power Plc   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COAL FIRED BOILERS; COST EFFECTIVENESS; ELASTIC WAVES; ELECTROMAGNETIC FIELD EFFECTS; NONDESTRUCTIVE EXAMINATION; PERMANENT MAGNETS; THICKNESS MEASUREMENT; TUBES (COMPONENTS); ULTRASONIC MEASUREMENT;

ELECTROMAGNETIC ACOUSTIC TRANSDUCERS; POWER STATION BOILER TUBES; ULTRASONIC THICKNESS MEASUREMENT;

ACOUSTIC TRANSDUCERS;

EID: 0031236031     PISSN: 13542575     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (8)

1. Dobbs E R, 'Electromagnetic generation of ultrasonic waves,' Physical Acoustics. W P Mason and R N Thurston, eds. Vol 10. New York, NY: Academic Press (1976): p 127-193.
2. Frost H M, 'Electromagnetic-ultrasound Transducers: Principles, practice and applications,' Physical Acoustics. W P Mason and R N Thurston, eds. Vol 14. New York, NY: Academic Press (1979): P179-276.
3. Schlander D M, MacLauchlan D T, Tilley R M, Blais G, Chang P S, 'EPRI portable EMAT wall thickness measurement system,' presented to EPRI 4th Conference on Fossil Plant Inspections, San Antonio, Texas, Jan 18-20, 1994.
4. Allen D R, Martin R, 'Measuring boiler tube wall thickness in thermal power plants using electromagnetic acoustic transducers (EMATs),' Materials Physics Division, United Kingdom Atomic Energy Authority, Harwell, Oxfordshire, April 1985.
5. C Edwards, S B Palmer, 'Wide band electromagnetic acoustic transducers utilising Nd-Fe-B permanent magnets,' IEEE Trans On Magnetics, Vol 26, pp2080-2084, 1990.
6. S Dixon, C Edwards, S B Palmer, 'The analysis of adhesive bonds using electromagnetic acoustic transducers,' Ultrasonics Vol 32, No 6, pp425-430, 1994.
7. S Dixon, C Edward, J Reed, S B Palmer, 'The use of EMATs to measure the wall thickness of hot galvanizing kettles,' INSIGHT, pp368-370, April 1995.
8. 'Procedure for general ultrasonic thickness measurement, thickness range 2-200 mm,' National Power Component Life And Integrity Group Technical Work Instruction NP/WI/NDT003.