MULTI-WAVELENGTH RADIATION THERMOMETER AND MULTI-WAVELENGTH RADIATION TEMPERATURE MEASUREMENT METHOD

摘要

The present invention relates to a measurement method and device that make both highly accurate temperature measurement and shape measurement possible. The present invention provides a multi-wavelength radiation thermometer that is provided with a diaphragm for blocking a portion of the thermal radiation emitted from an object under detection, a two-dimensional diffraction element for dispersing thermal radiation that has passed through the diaphragm according to the wavelength regions thereof, and a two-dimensional sensor for detecting the thermal radiation dispersed by the two-dimensional diffraction element.