Method and apparatus for acoustic detection of mines and other b

Method and apparatus for acoustic sensing of structures

Method and apparatus for acoustic wave measurement

Method and apparatus for acoustically investigating a casing wit

Method and apparatus for acoustically measuring the volume of an

Method and apparatus for controlling or measuring the thickness

Method and apparatus for detecting a defect of an object to be m

Method and apparatus for detecting a load change upon a...

Method and apparatus for detecting and discriminating objects un

Method and apparatus for detecting defects and different-hardnes

Method and apparatus for detecting defects in an object by vibra

Method and apparatus for detecting dissolution of a solid in a l

Method and apparatus for detecting misapplied caps on...

Method and apparatus for determining material fatigue by measuri

Method and apparatus for determining material structural integri

Method and apparatus for determining resonant frequency of a tur

Method and apparatus for determining seismic vulnerability of a

Method and apparatus for determining the coefficient of internal

Method and apparatus for determining thickness of a...

Method and apparatus for dynamic determination of the thickness