U
- Ultrasound attenuation spectroscopy - Ultrasound attenuation spectroscopy
- Ultrasonic testing - Ultrasonic testing
- UPS - UV-photoelectron spectroscopy
- USANS - Ultra small-angle neutron scattering
- USAXS - Ultra small-angle X-ray scattering
- UV-Vis - Ultraviolet–visible spectroscopy
Read more about this topic: List Of Materials Analysis Methods