MQB-Pascal

MQB-Pascal will investigate new methods for realizing the unit of pressure, the pascal, using quantum-based techniques. The current realization of the pascal is based on piston-cylinder systems, which have limitations in terms of uncertainty and range. These limitations are significant, as accurate measurements of pressure are crucial in various fields, including manufacturing, aerospace, and healthcare.

This project aims at achieving an uncertainty of 2 mPa + 10 ppm (k=2) in the range of 1 Pa to 30 kPa. To achieve this goal, the project will focus on developing
fully operational Fabry-Pérot interferometers and optomechanical sensors. These quantum-based systems have the potential to offer significant improvements over traditional methods, but their
development requires a deep understanding of the underlying physics.

Theory and calculations play a critical role in this project, as they are essential for predicting and optimizing the performance of the new pressure standards. The development of accurate models and simulations are necessary to understand the behavior of the quantum-based systems and to identify potential sources of error. Furthermore, theoretical work will be needed to guide the experimental design and to analyze the results obtained from the new methods. By combining theoretical and experimental approaches, the project aims to make significant progress towards the development of new pressure standards that can meet the demands of modern applications.