Correcting distortion in acoustic sense lines

Patrick J. Vitarius; Don A. Gregory; Valentin Korman; John Wiley

doi:10.1117/12.667666

10 May 2006 Correcting distortion in acoustic sense lines

Patrick J. Vitarius, Don A. Gregory, Valentin Korman, John Wiley

Proceedings Volume 6222, Sensors for Propulsion Measurement Applications; 62220T (2006) https://doi.org/10.1117/12.667666
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Pressure sense lines, as employed in the measurement of rocket engine test firings, can propagate the time-domain pressure signal out of hostile regions and allow instrumentation with pressure transducers. In such applications, it is necessary to correct the data to account for attenuation and resonance due to the sense line. One technique for doing so is the application of Fourier transform theory to obtain the transfer function of the sense line. Various techniques for obtaining the transfer function are explored, including the use of Gaussian noise, single frequency sweeps, and impulse signals as input functions. The transfer function thus obtained is mathematically fit, scaled, and validated against a related system.

Citation Download Citation

Patrick J. Vitarius, Don A. Gregory, Valentin Korman, and John Wiley "Correcting distortion in acoustic sense lines", Proc. SPIE 6222, Sensors for Propulsion Measurement Applications, 62220T (10 May 2006); https://doi.org/10.1117/12.667666

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