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Open AccessArticle
Performance and Uncertainty Analysis of Digital vs. Analog Pressure Scanners Under Static and Dynamic Conditions
by
Roxana Nicolae
Roxana Nicolae 1
,
Constantin-Daniel Oancea
Constantin-Daniel Oancea 2,*
,
Rares Secareanu
Rares Secareanu 1 and
Daniel Lale
Daniel Lale 1
1
National Research and Development Institute for Gas Turbines—Romanian Research & Development Institute for Gas Turbines, 061126 Bucharest, Romania
2
Faculty of Electronics, Telecommunication and Information Technology, National University of Science and Technology Politehnica of Bucharest, 060042 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Eng 2025, 6(10), 263; https://doi.org/10.3390/eng6100263 (registering DOI)
Submission received: 14 August 2025
/
Revised: 9 September 2025
/
Accepted: 18 September 2025
/
Published: 4 October 2025
Abstract
Dynamic pressure measurement is an important component in the turbo engine testing process. This paper presents a comparative analysis between two types of multichannel electronic pressure measurement systems, commonly known as pressure scanners, used for this purpose: ZOC17/8Px, with analog amplification per channel, and MPS4264, a modern digital system with integrated A/D conversion. The study was conducted in two stages: a metrological verification and validation in static mode, using a high-precision pressure standard, and an experimental stage in dynamic mode, where data was acquired from a turbojet engine test stand, in constant engine speed mode. The signal stability of the pressure scanners was statistically analyzed by determining the coefficient of variation in the signal and the frequency spectrum (FFT) for each channel of the pressure scanners. Furthermore, comprehensive uncertainty budgets were calculated for both systems. The results highlight the superior stability and reduced uncertainty of the MPS4264 pressure scanner, attributing its enhanced performance to digital integration and a higher resilience to external noise. The findings support the adoption of modern digital systems for dynamic applications and provide a robust metrological basis for the optimal selection of measurement systems.
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MDPI and ACS Style
Nicolae, R.; Oancea, C.-D.; Secareanu, R.; Lale, D.
Performance and Uncertainty Analysis of Digital vs. Analog Pressure Scanners Under Static and Dynamic Conditions. Eng 2025, 6, 263.
https://doi.org/10.3390/eng6100263
AMA Style
Nicolae R, Oancea C-D, Secareanu R, Lale D.
Performance and Uncertainty Analysis of Digital vs. Analog Pressure Scanners Under Static and Dynamic Conditions. Eng. 2025; 6(10):263.
https://doi.org/10.3390/eng6100263
Chicago/Turabian Style
Nicolae, Roxana, Constantin-Daniel Oancea, Rares Secareanu, and Daniel Lale.
2025. "Performance and Uncertainty Analysis of Digital vs. Analog Pressure Scanners Under Static and Dynamic Conditions" Eng 6, no. 10: 263.
https://doi.org/10.3390/eng6100263
APA Style
Nicolae, R., Oancea, C.-D., Secareanu, R., & Lale, D.
(2025). Performance and Uncertainty Analysis of Digital vs. Analog Pressure Scanners Under Static and Dynamic Conditions. Eng, 6(10), 263.
https://doi.org/10.3390/eng6100263
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