System for detecting salinity using salinometer

One embodiment of the present invention relates to a salinity measuring system using a salinometer, and a technical task to resolve is to display the density of sodium included in a sample fast and accurately by measuring the salinity density and the temperature of the sample. To do so, a salinity measuring system using a salinometer given in one embodiment of the present invention includes: a printed circuit board which is integrated inside a body; a battery which is integrated inside the body and is connected to the printed circuit board; at least one electrode which is installed at one end of the body, one end of which is connected to the printed circuit board, and the other end of which is immersed in or in touch with the sample; and a temperature sensor. The printed circuit board includes: a power supply unit which supplies power; a key selection unit which selects an operation; a sample data detection unit which includes a conductivity measuring unit for detecting the electric conductivity of the sample measured by the electrode and a temperature detection unit for detecting the temperature of the sample measured by the temperature sensor; a memory unit which stores the density of sodium or salinity against the electric conductivity according to the temperature of the sample in advance; a main control unit which compares the measured electric conductivity and temperature of the sample to the density of sodium or salinity against the electric conductivity according to the temperature of the sample stored in the memory unit and calculates the density of sodium and salinity corresponding to the measured electric conductivity and temperature of the sample; and a display unit which displays the density of sodium and salinity corresponding to the calculated electric conductivity and temperature of the sample. [Reference numerals] (110) Power supply unit; (121) Memory; (122) Power management; (123) Control (CPU); (124) External pulse interrupt; (125) Communication (USART); (12a,AA) Power (ON/OFF); (12c) Mode change/hold; (131) Conductivity/temperature signal relay; (132) Conductivity measuring unit; (133) Temperature measuring unit; (13a) Battery; (140) Connector; (151) LCD (control unit); (BB) Operation indication; (CC) Supply static voltage; (DD) Select conductivity/temperature; (EE) Pulse signal; (FF) Transmit the measured value