Patent ID: 9470581
Filing Date: 2016-10-18
CPC Classification: G01J

Claim Text:
1. An apparatus for detecting a temperature, comprising: a humidity sensor configured to measure a humidity value; a temperature compensation database configured to store a temperature compensation value for each humidity value; and a pyrometer configured to provide a non-contact temperature calculated by adding a temperature compensation value corresponding to a humidity value detected by the humidity sensor to a temperature to be compensated, where the temperature to be compensated is obtained by converting a measured wavelength intensity of a radiation radiated from an object in a wavelength band to be compensated, wherein the wavelength band to be compensated of 5 μm to 15 μm includes a transmittance limiting wavelength band of 5 μm to 7 μm having a transmittance less than a first threshold value due to a humidity, and a transmittance allowing wavelength band of 7 μm to 15 μm having a transmittance more than a second threshold value due to the humidity, and wherein the temperature compensation value for each humidity value stored in the temperature compensation database is a difference value between the transmittance allowing temperature and the temperature to be compensated for each humidity value, assuming that a transmittance allowing temperature is a temperature obtained by converting an intensity measured in the transmittance allowing wavelength band.