Formulation and its verification of conductivity for uniform turbid water

For measurement of sediment spatial concentration of nearshore seawater, a turbid water system with several. kinds of particles is investigated from t he viewpoint of the characteristics of particles. Firstly, the classical ph ysical and chemical conductivity formula is extended to macro-particle (suc h as sand) conductivity formula. Secondly, the Fricke formula suitable for only one kind of particles is extended to the conductivity formula suitable for several kinds of particles.. Finally, the multi-particle conductivity formula is applied to the measurement of sediment spatial concentration.