Northrop Grumman Systems Corporation

Xarion Laser Acoustics Gmbh

Wolfgang Rohringer

Lukas Balthasar Fischer

Clint D Thomson

Igor V Ivakhnenko

Fabian Luecking

Nils Panzer

The invention comprises a device () for testing a test object (), comprising an excitation system () for generating broadband ultrasound pulses (') in the test object, a detection system () for detecting ultrasound waves (), which are generated through the broadband ultrasound pulses (′) in the test object () and emitted by the test object (). The device () comprises a processing unit () for processing the detected ultrasound waves (), while the excitation system () being one of a thermoacoustic emitter or a pulsed laser and the detection system () is a broadband detection system. The excitation system () comprises a modulator () for modulating the broadband ultrasound pulses (′). Furthermore, the invention comprises a method for testing a test object.

Device and method for testing a test object

Methods, devices, and systems for detecting one or more discontinuities of a structure may include a laser emitter configured to generate and direct an ultrasonic signal into a structure and a receiver comprising an optical microphone. The optical microphone may comprise an array of optical microphones configured in a complementary manner to the emitter.

Inspection devices with laser emitters and optical microphones, and related systems and methods

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Vienna, Austria

Wolfgang Rohringer