Document Type

Article

Publication Date

4-25-2005

Journal or Book Title

Applied Physics Letters

Volume

86

Issue

17

First Page

174105

DOI

10.1063/1.1906324

Abstract

We have developed and tested in the laboratory a method for in-orbit detection and location of air leaks in manned spacecraft that uses only a small number of sensors distributed arbitrarily on the inner surface of the spacecraft skin. Then, structure-borne ultrasound in the range of 300–600 kHz is monitored from each of the sensors. When cross correlations between measured sensor waveforms indicate the presence of a leak, these correlations are compared with a large dynamically generated database of simulated correlations to locate the leak on the pressure vessel. A series of experimental tests were performed and at worst the method identified some false locations, but the true location of the leak always appeared.

Comments

This article appeared in Applied Physics Letters 86, no. 17 (2005): 174105, doi:10.1063/1.1906324.

Rights

Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Copyright Owner

American Institute of Physics

Language

en

Date Available

November 14, 2012

File Format

application/pdf

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