Two-sensor ultrasonic spacecraft leak detection using structure-borne noise | Zendy

Stephen D. Holland | Zendy; Ron Roberts | Zendy; Dale E. Chimenti | Zendy; Michael Strei | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Two-sensor ultrasonic spacecraft leak detection using structure-borne noise

Author(s) -

Stephen D. Holland,

Ron Roberts,

Dale E. Chimenti,

Michael Strei

Publication year - 2005

Publication title -

acoustics research letters online

Language(s) - English

Resource type - Journals

ISSN - 1529-7853

DOI - 10.1121/1.1855351

Subject(s) - spacecraft , leak , ultrasonic sensor , acoustics , noise (video) , transducer , phase (matter) , physics , computer science , engineering , aerospace engineering , artificial intelligence , quantum mechanics , thermodynamics , image (mathematics)

Micrometeorite hits can create air leaks in manned spacecraft. Leak-generated-guided ultrasonic waves can be monitored within the plate-like spacecraft skin to detect and locate leaks. Cross-correlation techniques allow measurement of the deterministic behavior of the leak-generated noise. Measured leak-into-vacuum cross-correlations of noise signals from two adjacent transducers are recorded as the transducer pair is rotated to determine the relative phase delay as a function of rotation angle. The direction to the leak is found from the variation of phase with angle or from synthetic aperture analysis. The leak is then located through triangulation from two or more sensor-pair locations. (C) 2005 Acoustical Society of America.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research