Development of Low Frequency High Temperature Ultrasonic Transducers for In-service Monitoring of Pipework in Power Plants
| Autor: | M Kostan, Wamadeva Balachandran, SA Tumin, Cem Selcuk, Tat-Hean Gan, Abbas Mohimi, Anurag Dhutti |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Continuous operation Acoustics 010401 analytical chemistry Ultrasonic testing 02 engineering and technology General Medicine 021001 nanoscience & nanotechnology 01 natural sciences Piezoelectricity 0104 chemical sciences Vibration Transducer Ultrasonic sensor Structural health monitoring 0210 nano-technology Electromagnetic acoustic transducer Engineering(all) |
| Zdroj: | Procedia Engineering. 168:983-986 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2016.11.321 |
| Popis: | In this paper, a low-frequency (20-100 kHz) long-range ultrasonic guided wave transducer for in-service structural health monitoring of high temperature pipework in power plants has been developed. The transducer is designed for continuous operation at a target temperature of 350 °C. This paper describes the methodology followed to develop and test the high temperature transducer. The method includes selection of the suitable piezoelectric material and characterisation of their high temperature properties for the desired thickness-shear mode of vibration to validate its performance at the target temperature. The assembly procedure established for manufacturing transducer is discussed. Ultrasonic performance of the developed transducer was examined and has demonstrated its application for in-service monitoring of pipework operating at the target temperature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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