Infrared Imaging and NDT

Advances in Imaging of Ndt Results

Several developments in the past have greatly helped to enhance ultrasonic detection and sizing. An important step forward was the introduction of Time of Flight Diffraction (ToFD), making sizing considerably less dependent of defect orientation. Optimized pulse-echo techniques, advances in transducer technology and software support combined with ToFD now enable the relatively high reliability ...

Terahertz Spectral Imaging Techniques in Ndt: Topography and Computed Tomography

The emerging technology of generation and detection of Terahertz waves (1 THz = 10 Hz) offers diverse potentials in non-destructive testing (NDT) regarding security as well as safety aspects. Herein, we focus on the latter with emphasis on imaging techniques. The THz range (0.1 ... 10 THz, 3mm ...30 μm) closes the technological gap between ultra high frequency electronics and FIR optics in the ...

Optimal Linear Receive Beamformer for Ultrasonic Imaging in Ndt

Phased arrays are relatively new tools that have been introduced to NDE in the recent decennium. Phased arrays have unquestionable advantages and open new possibilities of realtime ultrasonic imaging in NDE. However, the common way of designing focusing laws is based on the point source assumption, that is, it is assumed that the element size can be neglected. Since such assumption is valid in ...

Session 3A4 Microwave Imaging for NDE/NDT Applications

In this paper, a neural network approach is applied to a typical electromagnetic diagnostic problemconsisting in the prediction of the electromagnetic field absorption inside a dielectric phantom. The approachhas been tested by considering, at the input of the neural network, the values of the incident electric field ata fixed number of locations. Also phaseless measures have been t...

Quality Control and NDT