TY - JOUR
T1 - Novel primary standard for dynamic pressure up to 500 MPa
AU - Högström, Richard
AU - Lakka, Antti
AU - Hämäläinen, Jussi
AU - Salonen, Leevi
AU - Brzozowski, Adam
N1 - Publisher Copyright:
© 2024
PY - 2025
Y1 - 2025
N2 - Dynamic pressure measurements at high pressures, up to 500 MPa, are relevant for testing the performance and safety of ammunition, explosives, and weapons. Current primary standards for realizing dynamic pressure are laborious to use, making them impractical for daily calibration work. Consequently, industry still calibrates sensors using static methods, which can result in errors up to 10 %. A new design of a drop-weight device was developed by VTT MIKES, the National Metrology Institute of Finland, to overcome these issues. Based on this novel design, a high-pressure primary standard up to 500 MPa was developed for GUM, the National Metrology Institute of Poland. In this paper, the design principles and initial test results are presented together with a preliminary uncertainty budget. Based on this study, an uncertainty level of 0.9 % (k = 2) is achieved, which is a significant improvement compared to current state-of-the-art of around 2 %.
AB - Dynamic pressure measurements at high pressures, up to 500 MPa, are relevant for testing the performance and safety of ammunition, explosives, and weapons. Current primary standards for realizing dynamic pressure are laborious to use, making them impractical for daily calibration work. Consequently, industry still calibrates sensors using static methods, which can result in errors up to 10 %. A new design of a drop-weight device was developed by VTT MIKES, the National Metrology Institute of Finland, to overcome these issues. Based on this novel design, a high-pressure primary standard up to 500 MPa was developed for GUM, the National Metrology Institute of Poland. In this paper, the design principles and initial test results are presented together with a preliminary uncertainty budget. Based on this study, an uncertainty level of 0.9 % (k = 2) is achieved, which is a significant improvement compared to current state-of-the-art of around 2 %.
KW - Calibration
KW - Drop-weight method
KW - Dynamic pressure
KW - High pressure
KW - Primary standard
UR - http://www.scopus.com/inward/record.url?scp=85214581079&partnerID=8YFLogxK
U2 - 10.1016/j.measen.2024.101686
DO - 10.1016/j.measen.2024.101686
M3 - Article
AN - SCOPUS:85214581079
SN - 2665-9174
JO - Measurement: Sensors
JF - Measurement: Sensors
M1 - 101686
ER -