THE EFFECT OF FINE BUBBLES ON MEASUREMENTS OF CONCENTRATION AND PARTICLE SIZE DISTRIBUTION OF SUSPENDED SEDIMENT USING ULTRASONIC WAVE
Ultrasonic attenuation spectrometer has attracted attention as a new measuring device for suspended sediment concentration and particle size distribution. It is necessary either to degass the samples nor to make measurement in a high frequency band where bubbles do not significantly scatter the ultr...
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| Veröffentlicht in: | Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering Ser. B1 (Hydraulic Engineering), 2018, Vol.74(5), pp.I_817-I_822 |
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| container_issue | 5 |
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| container_title | Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering |
| container_volume | 74 |
| creator | FURUKAWA, Hitoshi KOMORI, Ayumi INOMATA, Shigemitsu ASAOKA, Yoshihiro NAGABAYASHI, Hisao |
| description | Ultrasonic attenuation spectrometer has attracted attention as a new measuring device for suspended sediment concentration and particle size distribution. It is necessary either to degass the samples nor to make measurement in a high frequency band where bubbles do not significantly scatter the ultrasonic waves since ultrasonic waves are greatly attenuated by fine bubbles. The ultrasonic attenuation spectrometer developed by the authors has a measurement frequency 1 to 10 MHz and fine bubbles may affect attenuation of ultra-sonic wave. Also, in the mountain rivers the water depth is shallow and the flow speed is high, so bubbles are likely to occur. In this paper we made measurement the attenuation characteristics of ultrasonic waves due to fine bubbles with diameters below 0.1 mm and verfied the effects of these bubbles on measurement of suspended sand concentration and particle size distribution in the measurement of mountain rivers. |
| doi_str_mv | 10.2208/jscejhe.74.5_I_817 |
| format | Article |
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It is necessary either to degass the samples nor to make measurement in a high frequency band where bubbles do not significantly scatter the ultrasonic waves since ultrasonic waves are greatly attenuated by fine bubbles. The ultrasonic attenuation spectrometer developed by the authors has a measurement frequency 1 to 10 MHz and fine bubbles may affect attenuation of ultra-sonic wave. Also, in the mountain rivers the water depth is shallow and the flow speed is high, so bubbles are likely to occur. 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B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering</title><addtitle>J. JSCE, Ser. B1</addtitle><description>Ultrasonic attenuation spectrometer has attracted attention as a new measuring device for suspended sediment concentration and particle size distribution. It is necessary either to degass the samples nor to make measurement in a high frequency band where bubbles do not significantly scatter the ultrasonic waves since ultrasonic waves are greatly attenuated by fine bubbles. The ultrasonic attenuation spectrometer developed by the authors has a measurement frequency 1 to 10 MHz and fine bubbles may affect attenuation of ultra-sonic wave. Also, in the mountain rivers the water depth is shallow and the flow speed is high, so bubbles are likely to occur. In this paper we made measurement the attenuation characteristics of ultrasonic waves due to fine bubbles with diameters below 0.1 mm and verfied the effects of these bubbles on measurement of suspended sand concentration and particle size distribution in the measurement of mountain rivers.</description><subject>Attenuation</subject><subject>Bubbles</subject><subject>Diameters</subject><subject>fine bubbles</subject><subject>flow-cell</subject><subject>Frequencies</subject><subject>High frequency</subject><subject>Inagawa river</subject><subject>Measurement</subject><subject>Measuring instruments</subject><subject>Mountains</subject><subject>Particle size</subject><subject>Particle size distribution</subject><subject>Rivers</subject><subject>Sediment</subject><subject>Sediment concentration</subject><subject>Size distribution</subject><subject>snowmelt runoff</subject><subject>suspended sediment concentration</subject><subject>Suspended sediments</subject><subject>Ultrasonic attenuation</subject><subject>Ultrasonic attenuation spectrometer</subject><subject>Water depth</subject><subject>Wave attenuation</subject><subject>Waves</subject><issn>2185-467X</issn><issn>2185-467X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpVkM1OwkAUhRujiQR5AVeTuAbnp9MZlqWdwiSlJUyrxs1kKFOBIGALC1_A57b8hOjm3puc852bHMd5RLCHMeTPq7qwq4XtMbdHtdQcsRunhRGnXddjb7d_7nunU9fLGYQe5ZgQ1HJ-spEAIopEkIE0ApFMBBjkg0EsFEgTMBa-yqdiLJJMHfUgTYLmnvqZbFQ_CcHEn2YyiAVQ8l2AUKpsKgf5SW78KlcTkYQiBEqE8hgDciWTIcjjJkSliQzAq_8iHpy70qxr27nstpNHIgtG3TgdysCPuwXikHS5nfcpw57HmOsiajCkM1TOrMc4LVmJCPWsLeclYgbiOSYQck5KbFzY94ylHmk7T-fcXbX9Oth6r1fbQ7VpXmpMMGIQYkQaFz67impb15Ut9a5afprqWyOoj5XrS-WaufpSeQMFZ2hV782HvSKm2i-Ltf2PNONEXdViYSptN-QXxU-D0A</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>FURUKAWA, Hitoshi</creator><creator>KOMORI, Ayumi</creator><creator>INOMATA, Shigemitsu</creator><creator>ASAOKA, Yoshihiro</creator><creator>NAGABAYASHI, Hisao</creator><general>Japan Society of Civil Engineers</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope></search><sort><creationdate>2018</creationdate><title>THE EFFECT OF FINE BUBBLES ON MEASUREMENTS OF CONCENTRATION AND PARTICLE SIZE DISTRIBUTION OF SUSPENDED SEDIMENT USING ULTRASONIC WAVE</title><author>FURUKAWA, Hitoshi ; KOMORI, Ayumi ; INOMATA, Shigemitsu ; ASAOKA, Yoshihiro ; NAGABAYASHI, Hisao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1803-8ed957266774415a205b1fbe6785f7f1356eefdf17a02d2300883f2a4096ae563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>2018</creationdate><topic>Attenuation</topic><topic>Bubbles</topic><topic>Diameters</topic><topic>fine bubbles</topic><topic>flow-cell</topic><topic>Frequencies</topic><topic>High frequency</topic><topic>Inagawa river</topic><topic>Measurement</topic><topic>Measuring instruments</topic><topic>Mountains</topic><topic>Particle size</topic><topic>Particle size distribution</topic><topic>Rivers</topic><topic>Sediment</topic><topic>Sediment concentration</topic><topic>Size distribution</topic><topic>snowmelt runoff</topic><topic>suspended sediment concentration</topic><topic>Suspended sediments</topic><topic>Ultrasonic attenuation</topic><topic>Ultrasonic attenuation spectrometer</topic><topic>Water depth</topic><topic>Wave attenuation</topic><topic>Waves</topic><toplevel>online_resources</toplevel><creatorcontrib>FURUKAWA, Hitoshi</creatorcontrib><creatorcontrib>KOMORI, Ayumi</creatorcontrib><creatorcontrib>INOMATA, Shigemitsu</creatorcontrib><creatorcontrib>ASAOKA, Yoshihiro</creatorcontrib><creatorcontrib>NAGABAYASHI, Hisao</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>FURUKAWA, Hitoshi</au><au>KOMORI, Ayumi</au><au>INOMATA, Shigemitsu</au><au>ASAOKA, Yoshihiro</au><au>NAGABAYASHI, Hisao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>THE EFFECT OF FINE BUBBLES ON MEASUREMENTS OF CONCENTRATION AND PARTICLE SIZE DISTRIBUTION OF SUSPENDED SEDIMENT USING ULTRASONIC WAVE</atitle><jtitle>Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering</jtitle><addtitle>J. JSCE, Ser. 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In this paper we made measurement the attenuation characteristics of ultrasonic waves due to fine bubbles with diameters below 0.1 mm and verfied the effects of these bubbles on measurement of suspended sand concentration and particle size distribution in the measurement of mountain rivers.</abstract><cop>Tokyo</cop><pub>Japan Society of Civil Engineers</pub><doi>10.2208/jscejhe.74.5_I_817</doi></addata></record> |
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| issn | 2185-467X 2185-467X |
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| source | Alma/SFX Local Collection |
| subjects | Attenuation Bubbles Diameters fine bubbles flow-cell Frequencies High frequency Inagawa river Measurement Measuring instruments Mountains Particle size Particle size distribution Rivers Sediment Sediment concentration Size distribution snowmelt runoff suspended sediment concentration Suspended sediments Ultrasonic attenuation Ultrasonic attenuation spectrometer Water depth Wave attenuation Waves |
| title | THE EFFECT OF FINE BUBBLES ON MEASUREMENTS OF CONCENTRATION AND PARTICLE SIZE DISTRIBUTION OF SUSPENDED SEDIMENT USING ULTRASONIC WAVE |
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