Improvement of dynamic pressure standard for calibration of dynamic pressure transducers

Durgut, Yasin; Ganioglu, Okhan; Aydemir, Bülent; Türk, Ahmet Serdar; Yilmaz, Recep; Hamarat, Abdullah; Bagci, Eyup

doi:10.1051/metrology/201927009

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…[66] We calibrate the frequency and time responses of the sensor against periodic and aperiodic pressure waves (e.g., a step signal), respectively. [67] Generation of these types of signals requires designated devices, such as shock tubes, [68] fast-opening valves, [68,69] and modulated weight or volume systems [69,70] In the calibration process of frequency response, sampling rate should follow the Nyquist theorem to avoid signal aliasing, and frequencies induced by the calibration setup itself could be excluded beforehand, for example, using Helmholtz resonance theory.…”

Section: Calibration Proceduresmentioning

confidence: 99%

Experimental methods in chemical engineering: Pressure

Galli

Tommaso

et al. 2022

Can J Chem Eng

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Pressure and temperature are the most important state variables for monitoring physicochemical processes to detect deviations that might lead to explosions and to verify levels, flow rate, and solids/gas hold-up. Pressure fluctuations in multiphase systems identify regime changes and flow anomalies. Pressure signals are the first indicator of a process upset and are tied into distributed control systems (DCS) to sound alarms when they drift to high or low and activate safety interlocks in the case of high, high-high, low, and low-low conditions. To maximize the information, it requires that pressure gauges (transducers) are installed and calibrated precisely. Pressure measuring devices include manometers, aneroid devices like bellows and Bourdon gauges, and electronic instruments-piezoresistive, piezoelectric, and capacitive. The electronic elements have the advantage of higher precision and faster response times to measure fluctuations. The Bourdon gauges are standard equipment for pressure regulators and are mounted on the exterior of vessels and pipes to facilitate visual inspections. Over two million articles indexed by the Web of Science Core collection mention pressure, and in 2021, chemical engineering ranks had over 7000 articles-only multidisciplinary material sciences and energy and fuels had more. A bibliometric analysis identified five research clusters: temperature, combustion, and kinetics; separation, membranes, and energy efficiency; carbon dioxide (capture and storage), water, and thermodynamics; methane, adsorption, and transport phenomena (e.g., diffusion and permeability); and modelling, optimization, and computational fluid dynamics (CFD).

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Section: Calibration Proceduresmentioning

confidence: 99%

Experimental methods in chemical engineering: Pressure

Galli

Tommaso

et al. 2022

Can J Chem Eng

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“…Table 1 summarizes, in comparative terms and in a qualitative way, the advantages and disadvantages of some of those solutions for pressure calibration purposes. Loudspeaker [16] Y Y Y N 1-10 Pistonphone [17] N N Y N 10-50 Tubing system [10] Y Y N N 20-30,000 Dropping mass [18] N From the previous table, it can be underlined that the main novelties associated with the proposed prototype are its capability to minimize calibration errors due to its remote sense compensation capability and its larger pressure dynamic range, besides its capability to generate arbitrary waveform pressure signals.…”

Section: Introductionmentioning

confidence: 99%

Pressure Sensors: Working Principles of Static and Dynamic Calibration

Pereira

2024

Sensors

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This paper starts with an overview of the main principles used for pressure measurements, focusing on their usage in industrial applications’ domains. Then, the importance of calibration procedures, namely, static and dynamic calibration of pressure sensors, is analyzed. Regarding calibration, it is important to note that there are several applications where the pressure signals to be measured can have large variations in short periods of time. In industrial applications, particularly in continuous production processes, generally, dynamic pressure measurements are less common; however, they are still required in several cases, such as control loops that are very sensitive to pressure variations, even if the frequencies of those variations are in the range of a few tens of hertz, or even lower. The last part of the paper presents the hardware and software of a flexible and low-cost static and dynamic pressure calibrator that also presents the capability to generate arbitrary waveform pressure signals for calibration and testing purposes. The proposed calibrator also includes the following advantages: remote pressure sensing capabilities that can be used to minimize calibration errors, such as those associated with capillary effects and pressure leakages; portability; and low cost. The paper ends with some experimental results obtained with the proposed calibrator.

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“…Laboratoire national de métrologie et d'essais/Ecole Nationale Supérieure d'Arts et Métiers (LNE/ENSAM) are developing dynamic pressure standards based on shock tube and fast-opening valve principles [1]. VTT MIKES, The National Metrology Institute of Germany (PTB) and the National Metrology Institute of Turkey (TUBITAK UME) have been developing drop weight devices [3,8,9]. The pressure range of these shock tubes is currently up to 7 MPa [10] with a frequency range up to the gigahertz range.…”

Section: Introductionmentioning

confidence: 99%

Advances in traceable calibration of cylinder pressure transducers

Salminen¹,

Saxholm²,

Hämäläinen³

et al. 2020

Metrologia

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Accurate and reliable dynamic pressure measurements are needed for optimizing performance in modern combustion engines, manufacturing processes and aerospace applications. Besides fast pressure transients, these applications subject dynamic pressure transducers to elevated temperatures. Both of these quantities effect the sensitivity of transducers. Therefore, transducers should be calibrated at conditions that corresponds to the operating environment. To answer these needs, the National Metrology Institute VTT MIKES has developed its drop weight dynamic pressure primary standard further. Developments include improved control and measurement of the falling weight, extension of the pressure range to combustion engine pressures down to 3 MPa and a heating option for dynamic pressure transducers under calibration. These advances enable traceable calibration of cylinder pressure transducers at conditions relevant to engine applications. The overall uncertainty (k = 2) of calibration is estimated to be around 1.7%. The performance was demonstrated by calibrating a piezoelectric pressure transducer in the pressure and temperature range from 7 MPa to 30 MPa in 20 °C, 120 °C and 180 °C, respectively. As a result, traceable calibrations of dynamic pressure transducers can be performed at conditions relevant for engine applications. This improves the reliability and accuracy of in-cylinder pressure measurements.

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Improvement of dynamic pressure standard for calibration of dynamic pressure transducers

Cited by 3 publications

References 4 publications

Experimental methods in chemical engineering: Pressure

Experimental methods in chemical engineering: Pressure

Pressure Sensors: Working Principles of Static and Dynamic Calibration

Advances in traceable calibration of cylinder pressure transducers

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