SALINITY MEASURING APPARATUS

摘要

PURPOSE: A salinity measuring apparatus is provided to allow for ease of maintenance of power system, while preventing accidents caused due to flash over fault. CONSTITUTION: A salinity measuring apparatus comprises a digital converting controller(10) for converting the salinity and humidity into a digital signal; a computer(30) for analyzing and storing data through the signal output from the digital converting controller; and a display/operator(20) for applying power to the digital converting controller or changing the reference value for measurement. The digital converting controller includes a switch module power supply(1) and a DC power supply(2) for receiving AC power and supplying DC power; an amplifying power supply(3) for amplifying and outputting the DC power output from the DC power supply; a current transformer(4) for measuring current; an A/D converter(5) for converting the current measured by the current transformer into a digital signal; a DSP(6) for receiving signal from the A/D converter and processing the received signal into a digital signal; a ROM(11) connected to the DSP; a RAM(12); a D/A converter(13) connected to the DSP and which converts a digital signal into an analog signal and outputs the signal to the amplifying power supply; a transmitter/receiver(7) connected to the DSP; and an RS232 serial communication unit(8) for transmitting the signal output from the transmitter/receiver.