Direct measurement of solids: High temperature sensing Final report Experimental development and testing of high temperature pulsed EMATs (electromagnetic acoustic transducer):

Technical Report · Fri Apr 01 00:00:00 EST 1988

DOI:https://doi.org/10.2172/7145606· OSTI ID:7145606

Boyd, D M; Spanner, G E; Sperline, P D

A pulsed laser/pulsed EMAT (electromagnetic acoustic transducer) receiver system has been demonstrated for measuring the time of flight of acoustic signals in hot steel samples. Attenuation and signal-to-noise ratio are important parameters to be monitored. A continuous contact EMAT application was not achieved; thermal analysis found that contact times of 5 seconds with cooling times of 45 seconds are required at 1300/degree/C. The equipment requires field hardening and improved packaging before system reliability can be assessed. 22 refs., 35 figs. (DLC)

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 7145606
• Report Number(s): PNL-6537; ON: DE88009859
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
42 ENGINEERING
STEELS
TEMPERATURE MEASUREMENT
MEASURING INSTRUMENTS
LASERS
PROGRESS REPORT
PULSES
REMOTE SENSING
TRANSDUCERS
ULTRASONIC WAVES
VERY HIGH TEMPERATURE
ALLOYS
DOCUMENT TYPES
IRON ALLOYS
IRON BASE ALLOYS
SOUND WAVES
440300* - Miscellaneous Instruments- (-1989)
420500 - Engineering- Materials Testing