• Dynamic calibration of shock overpressure transducers

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      https://www.ias.ac.in/article/fulltext/pram/022/05/0447-0451

    • Keywords

       

      Exploding wire; piezoelectric transducer; calibration; shock overpressure; shock velocity

    • Abstract

       

      Piezoelectric transducers for dynamic overpressure measurements are commonly calibrated with static or quasistatic loads and the calibration is extrapolated to frequencies up to 30% of the resonant frequency of the piezoelectric crystal. Sinusoidal pressure generators are also used for dynamic calibration up to 500 Hz in the range of 3 MPa. This paper describes a method for dynamic calibration using transient overpressures, with rise time of 2 µsec and width 40 µsec, generated by exploding wires in air. The calibration is done in the range of 600 kPa.

    • Author Affiliations

       

      J Harvey1 J Nandakumar1 L V Krishnan1

      1. Safety Research Laboratory, Reactor Research Centre, Kalpakkam - 603 102, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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