− We have developed a blackbody block system for comparing thermocouple temperature scales realized using fixed-point and radiation methods. Platinum/palladium, type S and type B thermocouples were calibrated using the freezing points of Ag, Cu, Fe-C, Co-C, and Pd (only for Type B). The radiation thermometer used was an LP4 linear pyrometer operated at a central wavelength of 650 nm. Two scales...

Photoacoustic (PA) techniques can measure temperature in biological tissues because PA signal amplitude is sensitive to tissue temperature. So far, temperature-measuring PA techniques have focused on sensing of temperature changes at a single position. In this work, we photoacoustically measured spatial distribution of temperature in deep tissue. By monitoring the temperature at a single positi...