dc.contributor.author |
Lih, Shyh-Shiuh |
|
dc.contributor.author |
Bar-Cohen, Yoseph |
|
dc.contributor.author |
Lee, Hyeong Jae |
|
dc.contributor.author |
Badescu, Mircea |
|
dc.contributor.author |
Bao, Xiaoqi |
|
dc.contributor.author |
Sherrit, Stewart |
|
dc.contributor.author |
Takano, Nobuyuki |
|
dc.contributor.author |
Ostlund, Patrick |
|
dc.contributor.author |
Blosiu, Julian |
|
dc.date.accessioned |
2013-12-18T17:49:48Z |
|
dc.date.available |
2013-12-18T17:49:48Z |
|
dc.date.issued |
2013-03-11 |
|
dc.identifier.citation |
SPIE Smart Structures and NDE Symposium, San Diego, California, March 10-14, 2013 |
en_US |
dc.identifier.clearanceno |
13-0786 |
|
dc.identifier.uri |
http://hdl.handle.net/2014/44130 |
|
dc.description.abstract |
Ultrasonic probes were designed, fabricated and tested for high temperature health monitoring system. The goal of this work was to develop the health monitoring system that can determine the height level of the condensed water through the pipe wall at high temperature up to 250 °C while accounting for the effects of surface perturbation. Among different ultrasonic probe designs, 2.25 MHz probes with air backed configuration provide satisfactory results in terms of sensitivity, receiving reflections from the target through the pipe wall. A series of tests were performed using the air-backed probes under irregular conditions, such as surface perturbation and surface disturbance at elevated temperature, to qualify the developed ultrasonic system. The results demonstrate that the fabricated air-backed probes combined with advanced signal processing techniques offer the capability of health monitoring of steam pipe under various operating conditions. |
en_US |
dc.description.sponsorship |
NASA/JPL |
en_US |
dc.language.iso |
en_US |
en_US |
dc.publisher |
Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2013 |
en_US |
dc.subject |
High Temperatures (HT) |
en_US |
dc.subject |
HT piezoelectric transducers |
en_US |
dc.subject |
fluid height monitoring |
en_US |
dc.subject |
health monitoring |
en_US |
dc.subject |
monitoring steam condensation |
en_US |
dc.subject |
sensors |
en_US |
dc.title |
High temperatures health monitoring of the condensed water height in steam pipe systems |
en_US |
dc.type |
Preprint |
en_US |