國立虎尾科技大學 |

Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations./
作者:	Kurtz, Eli.
面頁冊數:	1 online resource (80 pages)
附註:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
標題:	Environmental health. -
電子資源:	click for full text (PQDT)
ISBN:	9798379614065

Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations.
Kurtz, Eli.

Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations. - 1 online resource (80 pages)

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--University of Massachusetts Boston, 2023.

Includes bibliographical references

Seaweed aquaculture is a fast-growing industry, both in the United States and worldwide. In a typical operation, a grower operates an offshore plot which consists of a grid-like pattern of submerged "long line" ropes. Kelp is seeded onto these ropes and grows downward, nurtured by the flow of water and nutrients that passes over it. If this structure of underwater ropes is compromised, either by floating debris or an animal entanglement, it can cause significant economic damage to the operation. There is also growing concern towards protecting marine mammals from becoming entangled and injured in aquaculture systems. Due to the nature of seaweed farming, an aquaculturist might only visit their plot every two - three weeks. This intermittent schedule of visits contributes to the need of a near real-time monitoring system. This thesis describes the design and fabrication of a sensor system to monitor the physical integrity of the underwater ropes used in seaweed and other aquaculture operations, so that growers can be remotely notified and rapidly respond to incidents occurring on their offshore plots. The final sensor design integrates a reusable "weak link", a piezoelectric sound projector, a hydrophone, and LoRa radio communication technology. As tension is added to the rope by an entanglement or other stress event, the modified weak link activates, generating an acoustic frequency which is picked up by a hydrophone monitoring buoy and transmitted to shore. This sensor can be added to an existing long line rope without needing to cut the rope, and the break-link can be scaled to fail at different tension forces. Preliminary testing shows the acoustic range to be at minimum 60 feet from node to monitoring buoy.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798379614065Subjects--Topical Terms:

569475
Environmental health.
Subjects--Index Terms:

Seaweed aquacultureIndex Terms--Genre/Form:

554714
Electronic books.

Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations.
LDR:03090ntm a2200385K 4500 001 1141389
005 20240315085524.5
006 m o d
007 cr mn ---uuuuu
008 250605s2023 xx obm 000 0 eng d
020 $a 9798379614065
035 $a (MiAaPQ)AAI30422454
035 $a AAI30422454
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Kurtz, Eli. $3 1465122
245 1 0 $a Design of a Low-Cost Sensor to Ensure Integrity of Seaweed Aquaculture Operations.
264 0 $c 2023
300 $a 1 online resource (80 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 84-12.
500 $a Advisor: Tlusty, Michael.
502 $a Thesis (M.S.)--University of Massachusetts Boston, 2023.
504 $a Includes bibliographical references
520 $a Seaweed aquaculture is a fast-growing industry, both in the United States and worldwide. In a typical operation, a grower operates an offshore plot which consists of a grid-like pattern of submerged "long line" ropes. Kelp is seeded onto these ropes and grows downward, nurtured by the flow of water and nutrients that passes over it. If this structure of underwater ropes is compromised, either by floating debris or an animal entanglement, it can cause significant economic damage to the operation. There is also growing concern towards protecting marine mammals from becoming entangled and injured in aquaculture systems. Due to the nature of seaweed farming, an aquaculturist might only visit their plot every two - three weeks. This intermittent schedule of visits contributes to the need of a near real-time monitoring system. This thesis describes the design and fabrication of a sensor system to monitor the physical integrity of the underwater ropes used in seaweed and other aquaculture operations, so that growers can be remotely notified and rapidly respond to incidents occurring on their offshore plots. The final sensor design integrates a reusable "weak link", a piezoelectric sound projector, a hydrophone, and LoRa radio communication technology. As tension is added to the rope by an entanglement or other stress event, the modified weak link activates, generating an acoustic frequency which is picked up by a hydrophone monitoring buoy and transmitted to shore. This sensor can be added to an existing long line rope without needing to cut the rope, and the break-link can be scaled to fail at different tension forces. Preliminary testing shows the acoustic range to be at minimum 60 feet from node to monitoring buoy.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Environmental health. $3 569475
650 4 $a Aquatic sciences. $3 1178821
650 4 $a Environmental science. $3 1179128
653 $a Seaweed aquaculture
653 $a Seaweed farming
653 $a Radio communication technology
653 $a Underwater ropes
655 7 $a Electronic books. $2 local $3 554714
690 $a 0768
690 $a 0470
690 $a 0792
710 2 $a University of Massachusetts Boston. $b Marine Sciences and Technology (MS). $3 1465123
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Masters Abstracts International $g 84-12.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30422454 $z click for full text (PQDT)