MICROWAVE CONCENTRATION-MEASURING INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To obtain the concentration of a solid body and suspended matters to be measured accurately in real time even in the case of the presence of change in temperature and conductivity to be measured, temperature in an instrument, or the like. SOLUTION: The microwave concentration-measuring instrument measures concentration by mixing a signal being received by transmitting one of two microwaves to a measurement target and the other microwave for measuring a phase difference. The microwave concentration-measuring instrument comprises a means 53 for measuring a temperature to be measured, and a correction value operation means 54 for calculating the correction value of conductivity and phase to be measured according to the level of the received signal and temperature to be measured having been received by the means 53 for measuring temperature to be measured.