Auxiliary water level gauge auxiliary system, its auxiliary method, its auxiliary program and auxiliary water level gauge with auxiliary functions

摘要

PROBLEM TO BE SOLVED: To provide an auxiliary system of an immersion-type water level measurement device capable of obtaining information related to properties of storage liquid together with measurement of a water level of the storage liquid, and further to provide an auxiliary method thereof, an auxiliary program thereof and the immersion-type water level measurement device with an auxiliary function.SOLUTION: An auxiliary system 10 of an immersion-type water level measurement device comprises: two or more water pressure measuring instruments 50 fixed on an outer surface of a detector immersed into storage liquid at different water depths; a specific gravity derivation section 42 for deriving specific gravity σ of the storage liquid on the basis of a mutual difference between measured water pressures Pand Pmeasured by at least two of the water pressure measuring instruments 50 and a water depth difference of the water pressure measuring instruments 50; a retaining section 46 for retaining correlation data between a temperature and the specific gravity σ of the storage liquid; and a determination section 47 for determining the temperature of the storage liquid on the basis of the specific gravity derived by the specific gravity derivation section 42 and the correlation data.SELECTED DRAWING: Figure 3