{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,20]],"date-time":"2025-12-20T06:30:49Z","timestamp":1766212249632,"version":"3.48.0"},"reference-count":39,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T00:00:00Z","timestamp":1766016000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2022YFC3104600"],"award-info":[{"award-number":["2022YFC3104600"]}]},{"name":"Key Area Research and Development Program of Hainan Province","award":["ZDYF2024SHFZ084"],"award-info":[{"award-number":["ZDYF2024SHFZ084"]}]},{"name":"Sanya Yazhou Bay Science and Technology Innovation Joint Project of Hainan Province","award":["ZDYF2025GXJS136"],"award-info":[{"award-number":["ZDYF2025GXJS136"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Spectroscopic technology offers the advantage of rapid online monitoring and has attracted significant attention in molecular detection. However, the complex optical spectroscopic structure results in a relatively complex structure for spectral detection systems, limiting their widespread application. In water spectral detection, in addition to ensuring the stability of the optical system, waterproofing is also crucial. Therefore, developing miniaturized spectral detection modules in water spectral detection can improve system stability and reduce the complexity of developing and maintaining underwater hardware. This work develops a compact multispectral detection system centered on a miniature multispectral sensor. The system, controlled by a microcontroller, detects eight spectral channels within the 400\u2013700 nm range and transmits data via the I2C bus. The sensitivity and stability of the detection are sufficient for water reflectance spectral detection. Based on the reflectance spectrum obtained by the above module, this work develops a regression algorithm to estimate the chlorophyll concentration in water. By comparing with standard chlorophyll concentration detection instruments, the results demonstrate the effectiveness of the proposed system in accurately estimating chlorophyll concentration.<\/jats:p>","DOI":"10.3390\/s25247675","type":"journal-article","created":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T13:45:07Z","timestamp":1766065507000},"page":"7675","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Development and Application of Miniaturized Multispectral Detection System for Water Reflection Detection"],"prefix":"10.3390","volume":"25","author":[{"given":"Yuze","family":"Song","sequence":"first","affiliation":[{"name":"National Ocean Technology Center, Tianjin 300112, China"},{"name":"Key Laboratory of Ocean Observation Technology, Ministry of National Resources, Tianjin 300112, China"},{"name":"School of Civil Engineering Tianjin, Tianjin University, Tianjin 300072, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-2496-6144","authenticated-orcid":false,"given":"Yunfei","family":"Li","sequence":"additional","affiliation":[{"name":"College of Electronic and Information Engineering, Hebei University, Baoding 071002, China"},{"name":"Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Sanya 570228, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chao","family":"Li","sequence":"additional","affiliation":[{"name":"National Ocean Technology Center, Tianjin 300112, China"},{"name":"Key Laboratory of Ocean Observation Technology, Ministry of National Resources, Tianjin 300112, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feng","family":"Luo","sequence":"additional","affiliation":[{"name":"National Ocean Technology Center, Tianjin 300112, China"},{"name":"Key Laboratory of Ocean Observation Technology, Ministry of National Resources, Tianjin 300112, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fuhong","family":"Cai","sequence":"additional","affiliation":[{"name":"Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Sanya 570228, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,18]]},"reference":[{"doi-asserted-by":"crossref","unstructured":"P\u00e9rez-Patricio, M., Camas-Anzueto, J., Sanchez-Alegr\u00eda, A., Aguilar-Gonz\u00e1lez, A., Guti\u00e9rrez-Miceli, F., Escobar-G\u00f3mez, E., Voisin, Y., Rios-Rojas, C., and Grajales-Couti\u00f1o, R. 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