Abstract Thick (50 µm) piezoelectric films have been de-posited
directly on top of steel and aluminum substrates
as integrated ultrasonic transducer (IUT) receivers to de-tect
laser generated ultrasound. The film fabrication is based
on a sol-gel spray technique. In this study IUTs intrinsi-cally
acting as bulk longitudinal wave receivers use vari-ous
mode conversion approaches and serve as longitudinal,
shear, symmetric, anti-symmetric and shear horizontal plate
wave receivers. Different laser generation conditions such
as point and line sources of different sizes are also applied
to investigate the capabilities of IUT receivers. Ultrasonic
measurements on metal substrates with planar and curved
surfaces at temperature up to 400°C using laser generated
and IUT ultrasound receiver are demonstrated.