Development of High-Pressure Transducer: Design, Finite Element and Experimental Analysis

Abstract

Over the past few decades, the rapid and expanding usage of high-pressure technologies in science and engineering has prompted researchers to focus on developing better instruments and technologies with improved measurement uncertainties for various applications. Such efforts resulted in the development of new and advanced measurement techniques and standards to address calibration challenges and provide traceability to users. In the present study, an indigenous strain gauge-type pressure transducer has been designed, developed, tested, and calibrated for pressure measurements up to 1000 MPa. The sensing element's cylindrical shape was used, providing a cost-effective and straightforward approach for designing a pressure transducer over a wide pressure range. It also ensures a leak-proof and locked connection to the external environment, with no over-constrained contacts. The calibration and performance checking of the pressure transducer has been carried out using the national primary pressure standard with the internationally accepted calibration procedure. The transducer response under pressure is highly linear during its performance evaluation. As a result, the transducer performs satisfactorily within the reasonable measurement uncertainty of 0.5% of the full scale. The pressure transducer developed may help trace the user industries and calibration laboratories in the high range of pressure measurement and serve as a pressure transfer standard.