Patent ID: 11867567
Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. The thermo-physical property measurement instrument according to claim 13, further comprising:
a signal generator that outputs drive signals to the heating laser and the temperature measurement laser, wherein
the thermo-physical property measurement instrument controls a heating light irradiation time to irradiate the sample thin film with the heating light and a temperature measurement light irradiation time to irradiate the sample thin film with the temperature measurement light using a drive signal of the signal generator, and
the thermo-physical property value calculator calculates a heat diffusion time based on a time difference between the heating light irradiation time and the temperature measurement light irradiation time and calculates the thermo-physical property value including a thermal diffusivity based on the heat diffusion time.