Metallurgy
Sheet metals require a thin surface film to avoid surface corrosion between production and further processing later. These days, the measurement of the thickness of these films requires ellipsometric methods.
Laser ellipsometer SE 400advanced - Highly sensitive detection and stabilized compensator measurement combined with depolarization correction allows the analysis of films on rough surfaces.
- Measurement of film thickness and refractive index (e.g. alumina films on sprayed aluminum)
Laser ellipsometer SE 400 B- Fast and reliable thickness measurement of oxide films on rough sheet metal plates using the SE 400 STA
- Typical film thickness 40 –60 nm
- Automated measurement
- Use in typical production environment