Band edge thermometry (BET) Band edge thermometry (BET) takes advantage of the temperature-dependence of the band gap of semiconductor materials to provide very precise optical (i.e. non-contact) temperature measurements. BET systems require a specialized optical system, as well as custom data analysis software.
band edge thermometry (bet) band edge thermometry (bet) takes advantage of the temperature-dependence of the band gap of semiconductor materials to provide very precise optical (ie non-contact) temperature measurements bet systems require a specialized optical system as well as custom data analysis software