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In-situ measurement of the height of condensed water in steam pipes with dynamic flow

Show simple item record Lih, Shyh-Shiuh Lee, Hyeong Jae Bar-Cohen, Yoseph 2019-05-08T21:35:33Z 2019-05-08T21:35:33Z 2016-03-20
dc.identifier.citation SPIE Smart Structures/NDE 2016, Las Vegas, Nevada, March 20-24, 2016 en_US
dc.identifier.clearanceno 16-0751
dc.description.abstract A method based on the use of enhanced filtered Hilbert envelope of the wave signal was developed in order to monitor the height of condensed water through the wall of steam pipes having dynamic flow conditions. A prototype testbed was designed and fabricated in this study to simulate the dynamic flow conditions including the air stream flowing above the water and bubble induced disturbance. A dual-transducer was used to perform the test as a basis for the multiple transducers system to facilitate the detectability and reliability for long term monitoring of the condensed water height in dynamic conditions. The results demonstrated that the method of measuring the water height using multiple-transducer system employing the developed novel signal processing technique is an efficient and accurate tool for practical applications. 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, 2016 en_US
dc.subject Health monitoring en_US
dc.subject water level in pipe en_US
dc.subject dynamic surface conditions en_US
dc.subject Hilbert Transform en_US
dc.subject signal processing en_US
dc.title In-situ measurement of the height of condensed water in steam pipes with dynamic flow en_US
dc.type Preprint en_US

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