This paper presents a systematic review of the research available on salinity optic fiber sensors (OFSs) for seawater based on the refractive index (RI) measurement principle for the actual measurement demand of seawater salinity in marine environmental monitoring. the definition of seawater salinity and the correspondence between the seawater RI and salinity. To further investigate t... https://unitedssports.shop/product-category/hockey-protective-helmet-helmet-only/