Water quality measurement apparatus equipped with auto calibration function of sensor using impedance adjustment and sensor auto calibration method using impedance adjustment

摘要

The present invention relates to a multi-item water quality measuring device and method, more specifically, water quality measurement items (turbidity, pH, electrical conductivity, residual chlorine, water temperature, heavy metals, nutrient salts, dissolved oxygen, etc.) Automatically calibrate the sensor using the impedance adjustment to check the condition of the sensor, automatically correct the impedance and concentration curves of the sensor with abnormality in the inspection condition, and correct the measured value of the sensor according to the state of the sensor based on the corrected density curve. It relates to a water quality measuring device equipped with a function and an automatic sensor calibration method using impedance control.