Secondary Calibration System for Dynamic Pressure
| Reference number | |
| Coordinator | RISE Research Institutes of Sweden AB |
| Funding from Vinnova | SEK 650 000 |
| Project duration | November 2021 - November 2024 |
| Status | Completed |
Important results from the project
The main objective of the project to develop a secondary standard capable of generating dynamic pressure that overlaps with static pressure standards and the shock tube in both pressure levels and frequency content was achieved. Traceability was obtained through a reference sensor that was calibrated statically and characterized dynamically using the shock tube. The results were published as an article in the journal Measurement, https://doi.org/10.1016/j.measurement.2024.116253
Expected long term effects
Dynamic calibration services of dynamic pressure sensors in the pressure regime (amplitude from a few kilopascals up to 10 MPa and frequency from 10^-2 Hz up to 800 Hz) that were not covered by the existing primary standards became available. A new quantum-based primary standard for dynamic pressure calibration from few pascals up to hundreds kilopascals and frequency from 0.01 Hz upp till 1 kHz will be developed. The cooperation with other National Metrology Institutes was Enhanced.
Approach and implementation
The project was carried out through the following activities Design study, purchase of equipment and construction of the test volume. Initial measurements. Design and construction of a new test volume that is flexible, robust and fits different types and sizes of dynamic pressure sensors. Performing experiments and characterizing different types of sensors. Analysis of results, calculating the uncertainty budget and writing an article. Publishing the results. The project followed the time plan.