Development of a small salinometer

This paper describes the development of a new compact laboratory salinometer for the measurement of practical salinity of samples of seawater. The principles of the design are given. The instrument compares the conductance of the sample of seawater directly with that of a standard. A dual inductive cell system removes the need for highly stable bath temperature and gives direct reading of the conductivity ratio of the sample against standard seawater. The overall instrument is very compact, with a bench footprint of less than 310 by 210 mm, and a weight of under 5 kg