Thermal diffusivity measurement by photothermal radiometry under random excitation and parametric analysis

Temperature measurement of fine wires by photothermal radiometry

This work reports temperature measurement of fine wires using the photothermal radiometry ~PTR! technique. In this method, a laser is employed to create a small periodic temperature perturbation on the wire and thus a small modulation of the thermal emission signal from the wire. The temperature of the wire is derived from the ratio of the photothermal emission signals at two different waveleng...

Photothermal Radiometry – Principle and Applications

Photothermal radiometry has been proved being a versatile tool for the non-contact and non-destructive material inspection in near-surface zones. Although these near-surface areas represent only a few percent of the workpiece’s volume, they influence significantly its quality, functional behaviour, reliability and life time. In particular, they determine decisively the mechanical properties of ...

Measurement of Paint Layer Thickness with Photothermal Infrared Radiometry

Frequency-dependent photothermal measurement of transverse thermal diffusivity of organic semiconductors

Photothermal Radiometry for Skin Research

Abstract: Photothermal radiometry is an infrared remote sensing technique that has been used for skin and skin appendages research, in the areas of skin hydration, hydration gradient, skin hydration depth profiling, skin thickness measurements, skin pigmentation measurements, effect of topically applied substances, transdermal drug delivery, moisture content of bio-materials, membrane permeatio...