US 2026/0297831 A1 · TEMPERATURE-SPECIFIC PERFORMANCE DEVIATION CORRECTION APPARATUS AND CORRECTION METHOD FOR PHOTOSENSOR DETECTING NEPHELOMETRIC TURBIDITY UNITS

Abstract

The present invention relates to an apparatus for correcting temperature-specific performance deviation of a photosensor, comprising a sensor, which includes a plurality of photosensors, and a controller, which: detects, by means of each of the plurality of photosensors, nephelometric turbidity unit (NTU) values at a first temperature and a second temperature; detects the difference between the NTU values according to the first temperature and the second temperature; calculates a temperature-specific NTU value difference estimate for each photosensor on the basis of the detected NTU value difference; calculates temperature-specific NTU value correction values for each of the plurality of photosensors; and corrects the NTU values of each of the plurality of photosensors according to the calculated temperature-specific NTU value correction values.

Claims15

Dependent claims

A temperature-specific performance deviation correction apparatus for a photosensor, the apparatus comprising:

a sensing part comprising a plurality of photosensors;
and
a control part that detects turbidity values at a first temperature and a second temperature for a test solution having a same turbidity from each of the plurality of photosensors, detects a difference between the turbidity values according to the first temperature and the second temperature, calculates temperature-specific turbidity value (NTU) difference estimates for each photosensor based on the detected turbidity value difference, calculates temperature-specific turbidity value correction values for each of the plurality of photosensors by reflecting the temperature-specific turbidity value difference estimates to temperature-specific measurement values measured from each of the plurality of photosensors at each temperature for the test solution having the same turbidity, and corrects the turbidity values of each of the plurality of photosensors according to the calculated temperature-specific turbidity value correction values.

A correction method of correcting temperature-specific performance deviations of a plurality of photosensors for detecting a turbidity of a solution, the method comprising:

detecting, for each of the plurality of photosensors, turbidity values at a first temperature and a second temperature for a test solution having a same turbidity;
calculating a difference between the detected turbidity values;
calculating temperature-specific turbidity value (NTU) difference estimates for each photosensor based on the calculated difference between the turbidity values;
measuring, for the test solution having the same turbidity, turbidity values from each of the plurality of photosensors at each temperature;
calculating, for each of the plurality of photosensors, temperature-specific turbidity value correction values by reflecting the temperature-specific turbidity value difference estimates to the turbidity values measured at each temperature;
and
correcting turbidity values of each of the plurality of photosensors according to the calculated temperature-specific turbidity value correction values.

4 more elements

Dependencies are inferred from the claim text.

Temperature-specific performance deviation correction apparatus and correction method for photosensor detecting nephelometric turbidity units

Life of this patent

Temperature-specific performance deviation correction apparatus and correction method for photosensor detecting nephelometric turbidity units

Life of this patent

Abstract

Claims15