Effects of Waveform Model on Sensitivity Values of Transducers Used in Mechanical Dynamic Measurements

• Authors: E. Bilgiç , Y. Durgut
• Languages of publication: EN

Abstracts

EN

Dynamic calibration of the pressure transducers and accelerometers are carried out by applying dynamic mechanical inputs to them. Determination of those transducers' sensitivities, defined as the ratio of electrical output of the transducer to the mechanical input, is an important task for calibration laboratories. Data obtained during calibration are processed in order to have the peak values of the input and output signals which are sampled by data acquisition boards. Different approximations are made such as fitting the data in the range of 90% of the maximum value for parabola or half-sine waveform. It is clear that waveform model used and also the resolution and the sampling rate of the data acquisition boards have effects on the accuracy of the sensitivity of the transducer. For the investigation, the electrical output signal of the transducer corresponding to the mechanical input is recorded and simulated with different resolutions and sampling rates. Those data are processed for the waveforms of half-sine, parabola, Gaussian distribution. The effect of the waveform model of the input quantities on the dynamic sensitivity is discussed in this paper.

Keywords

EN

06.20.dk

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2B
• Pages: B-267-B-270

Dates

published

2015-8

Contributors

author

E. Bilgiç

• TÜBİTAK Ulusal Metroloji Enstitüsü, Acoustics Laboratory, Gebze-Kocaeli-Turkey

author

Y. Durgut

• TÜBİTAK Ulusal Metroloji Enstitüsü, Pressure Laboratory, Gebze-Kocaeli-Turkey

References

• [1] International vocabulary of metrology - Basic and general concepts and associated terms (VIM), 3rd edition 2008 version with minor corrections, JCGM 2012
• [2] IND09 Dynamic: Traceable dynamic measurement of mechanical quantities, Annex Ia - JRP-Protocol, EMRP
• [3] V.E. Bean, Metrologia 30, 737 (1993/94), doi: 10.1088/0026-1394/30/6/037
• [4] J. Hjelmgren, Dynamic Measurement of Pressure - A Literature Survey, SP Measurement Technology Report, SP Swedish National Testing and Research Institute, 2002, p. 34
• [5] Y. Durgut and I. Koçaş, in: VII. Ulusal Ölçüm Bilim Kongresi, İzmir 2008
• [6] Y.Durgut, E.Bağcı, S.Fank, B.Aydemir, in: 7th International Advanced Technologies Symposium (IATS'13), Istanbul 2013

Identifiers

DOI

10.12693/APhysPolA.128.B-267