Vorrichtung und Verfahren zur Temperaturleitfähigkeitsanalyse

Details

Veröffentlichungs-Nr.

EP4459262

Aktenzeichen

EP23382418

Anmeldetag

5. Mai 2023

Veröffentlichung

2. Juli 2025

Erteilung

2. Juli 2025

Rechtsraum

EP

IPC

G01K11/125G01N21/17G01K17/00G01N25/18

Abstract

The method comprises the steps of providing a pump laser (1) with a Gaussian intensity distribution, providing a probe laser (2) with a laser intensity constant in time, harmonically modulating the power of the pump laser (1), reading a pump beam (25), measuring the phase of the pump beam (25) and setting it as zero-phase lag, measuring the phase lag of the probe beam (24), increasing the offset between the pump and probe beam (25, 24), repeating the steps to obtain the phase lag between the pump and probe beams (25, 24) as a function of the offset between them, plotting the phase lag as a function of the offset between the pump and probe beams (25, 24), and computing the slope that renders the thermal diffusivity of the studied sample (12).

Anmelder

Firma

Consejo Superior de Investigaciones Cientificas

Land

🇪🇸 Spanien

Fachgebiete