Dogra, Sugandha and Singh, Jasveer and Lodh, Abhishek and Sharma, Nita Dilawar and Bandyopadhyay, A. K. (2010) A comparative approach for the characterization of a pneumatic piston gauge up to 8 MPa using finite element calculations. Measurement Science and Technology, 22 (2). 025103. ISSN 0957-0233

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Abstract

This paper reports the behavior of a well-characterized pneumatic piston gauge in the pressure range up to 8 MPa through simulation using finite element method (FEM). Experimentally, the effective area of this piston gauge has been estimated by cross-floating to obtain A0 and λ. The FEM technique addresses this problem through simulation and optimization with standard commercial software (ANSYS) where the material properties of the piston and cylinder, dimensional measurements, etc are used as the input parameters. The simulation provides the effective area Ap as a function of pressure in the free deformation mode. From these data, one can estimate Ap versus pressure and thereby Ao and λ. Further, we have carried out a similar theoretical calculation of Ap using the conventional method involving the Dadson’s as well as Johnson–Newhall equations. A comparison of these results with the experimental results has been carried out.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s IOP Publishing Ltd.
Uncontrolled Keywords:	pressure balance; pressure metrology; finite element analysis
Subjects:	Engineering Instruments/ Instrumentation
Divisions:	UNSPECIFIED
Depositing User:	Mr. Abhishek Yadav
Date Deposited:	31 Oct 2012 06:49
Last Modified:	31 Oct 2012 06:49
URI:	http://npl.csircentral.net/id/eprint/772

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