The activity aims at the development of innovative measurement methods and devices, aimed at advancing basic and industrial research and at the implementation of the new International System (SI) of units of measurement.
The new SI, in effect since May 2019, is based on established values of fundamental physical constants. This progress, the result of years of research, ensures the future stability of the International System and paves the way for the use of new methods to implement measurement unit definitions.
The development of innovative measurement systems is currently focused on the realization of quantum-based optical pressure standards using various methods, such as multi-reflection interferometry, laser refractometry, and Rayleigh scattering.
The main objectives are to create primary and transfer standards, based on the Boltzmann constant, over a wide pressure range up to 1 MPa, test the use of different gases, including nitrogen and air, and lay the foundations for the future development of systems that may also be of interest to industry, addressing the concepts of miniaturization and transportability.