TEMPERATURE MEASUREMENT DEVICE USING INDUCED FLUORESCENCE METHOD, AND TEMPERATURE MEASUREMENT METHOD USING INDUCED FLUORESCENCE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a temperature measurement device using an induced fluorescence method and temperature measurement method using the induced fluorescence method that enable stable characteristic of two kinds of temeperature sensitive fluorescence materials to be obtained using a single temperature sensitive fluorescence material without mixing two kinds thereof, and enable a more correct and contactless real-time measurement of a temperature of a temperature measurement object without being affected by disturbance.SOLUTION: A temperature measurement device using an induced fluorescence method includes: a light source 10 that irradiates a temperature sensitive fluorescence material 20 or the temperature sensitive fluorescence material and temperature measurement object 80 with input light Lexc of a prescribed wavelength; an imaging device 40 in which induced light Lind is input to a prescribed area 41A of an image pick-up element 41, and reflection light Lref of the input light reflected upon the temperature sensitive fluorescence material or the temperature measurement object is input to at least a part 41B of a residual area of the image pick-up element at the same time as the induced light; and a processing device 50 that obtains a temperature of the temperature measurement object on the basis of a change in ratio of luminance of the induced light with respect to luminance of the reflection light photographed by the imaging device.SELECTED DRAWING: Figure 1